Synthesizer
Project #22: Synthesizer – Gain – Mk14
——
#DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Arduino #SparkFunRedBoard #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
Gain
Gain is the process of managing the relative levels in each step of an audio signal flow to prevent introduction of noise and distortion, particularly in the analogue realm. Ideal gain occurs when each component in an audio signal flow is receiving and transmitting signal in the optimum region of its dynamic range.
Before we can effectively compare these two properties of audio, we need to make sure we understand what each is separately. Keep in mind that both modulate the amplitude of a signal, which translates into a change in loudness. It gets more complicated, dealing with voltage and current in electronics. Amplitude is measured in voltage, which is a direct corollary to volume. In plain language, gain is kind of like an amplitude knob at the input of a piece of hardware or software that controls the loudness before it goes through the circuitry.
DL2208Mk07
1 x SparkFun RedBoard
1 x 10k Ohm Rotary Potentiometer
1 x Potentiometer Knob – Blue
7 x Momentary Button – Panel Mount (Blue)
5 x Momentary Button – Panel Mount (Black)
12 x 10K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot – X-Large
5 x Slide Potentiometer Knob – X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
SparkFun RedBoard
LP0 – Analog A0 – Blue
LP1 – Analog A1 – Green
LP2 – Analog A2 – Grey
LP3 – Analog A3 – Yellow
LP4 – Analog A4 – Purple
PO5 – Analog A5
KY1 – 1
KY2 – 2
KY3 – 3
KY4 – 4
KY5 – 5
KY6 – 6
KY7 – 7
KY8 – 8
SPK – 9
KY10 – 10
KY11 – 11
KY12 – 12
KY13 – 13
VIN – +5V
GND – GND
——
DL2208Mk07p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Gain - Mk14
22-14
DL2208Mk07p.ino
1 x SparkFun RedBoard
1 x 10k Ohm Rotary Potentiometer
1 x Potentiometer Knob - Blue
7 x Momentary Button - Panel Mount (Blue)
5 x Momentary Button - Panel Mount (Black)
12 x 1K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot - X-Large
5 x Slide Potentiometer Knob - X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Pitches
#include "pitches.h"
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Sine Wave Table For Oscillator
#include <tables/sin2048_int8.h>
// Cosine Wave Table For Oscillator
#include <tables/cos2048_int8.h>
// Sawtooth Wave Table For Oscillator
#include <tables/saw2048_int8.h>
// Triangle Wave Table For Oscillator
#include <tables/triangle2048_int8.h>
// Square Wave Table For Oscillator
#include <tables/square_no_alias_2048_int8.h>
// ADSR envelope generator
#include <ADSR.h>
// Simple Keyboard
// Minimum reading of the button that generates a note
const int iKeyboard1 = 1;
const int iKeyboard2 = 2;
const int iKeyboard3 = 3;
const int iKeyboard4 = 4;
const int iKeyboard5 = 5;
const int iKeyboard6 = 6;
const int iKeyboard7 = 7;
const int iKeyboard8 = 8;
const int iKeyboard10 = 10;
const int iKeyboard11 = 11;
const int iKeyboard12 = 12;
const int iKeyboard13 = 13;
// Button is pressed
int iB1 = 1;
int iB2 = 1;
int iB3 = 1;
int iB4 = 1;
int iB5 = 1;
int iB6 = 1;
int iB7 = 1;
int iB8 = 1;
int iB10 = 1;
int iB11 = 1;
int iB12 = 1;
int iB13 = 1;
// Set the input for the potentiometer for Frequency to analog pin 2
const int potFreq = A2;
int iFreg = 1;
int iNoteA = 0;
int iNoteAS = 0;
int iNoteB = 0;
int iNoteC = 0;
int iNoteCS = 0;
int iNoteD = 0;
int iNoteDS = 0;
int iNoteE = 0;
int iNoteF = 0;
int iNoteFS = 0;
int iNoteG = 0;
int iNoteGS = 0;
// Gain
const int iGainPot4 = A4;
// Control variable, use the smallest data size you can for anything used in audio
byte gain = 0;
int iGain = 0;
//Oscillator Functions declared for output envelope 1
// Carrier
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aCarrier;
// Set the input for the potentiometer for Oscillator to analog pin 4
const int potWave = A5;
// Wave
int iWave;
int iWaveLevel;
// ADSR declaration/definition
// Comment out to use control rate of 128
#define CONTROL_RATE 128
ADSR <CONTROL_RATE, CONTROL_RATE> envelope1;
// Set the input for the potentiometer Attack to analog pin 1
const int potAttack = A0;
// Attack
int attack_level = 0;
int iAttack = 0;
// Set the input for the potentiometer for Decay to analog pin 2
const int potDecay = A1;
// Decay
int decay_level = 0;
int iDecay = 0;
// Set the input for the potentiometer Attack Time to analog pin 3
const int potAttackTime = A3;
// Attack Time
int AttackTime_level = 0;
int iAttackTime = 0;
// Software Version Information
String sver = "22-14";
void loop() {
// Audio Hook
audioHook();
}
getKeyboard.ino
// getKeyboard
// setupKeyboard
void setupKeyboard() {
// Initialize the button pin as an input
pinMode(iKeyboard1, INPUT_PULLUP);
pinMode(iKeyboard2, INPUT_PULLUP);
pinMode(iKeyboard3, INPUT_PULLUP);
pinMode(iKeyboard4, INPUT_PULLUP);
pinMode(iKeyboard5, INPUT_PULLUP);
pinMode(iKeyboard6, INPUT_PULLUP);
pinMode(iKeyboard7, INPUT_PULLUP);
pinMode(iKeyboard8, INPUT_PULLUP);
pinMode(iKeyboard10, INPUT_PULLUP);
pinMode(iKeyboard11, INPUT_PULLUP);
pinMode(iKeyboard12, INPUT_PULLUP);
pinMode(iKeyboard13, INPUT_PULLUP);
}
// isKeyboard
void isKeyboard() {
// Oscillators
isOscil();
// Choose envelope levels
// attack_level
iAttack = mozziAnalogRead( potAttack );
attack_level = map( iAttack, 0, 1023, 100, 400);
// Attack Level
envelope1.setAttackLevel( attack_level );
// decay_level
iDecay = mozziAnalogRead( potDecay );
decay_level = map( iDecay, 0, 1023, 50, 255);
// Decay Level
envelope1.setDecayLevel( decay_level );
// AttackTime_level
iAttackTime = mozziAnalogRead( potAttackTime );
AttackTime_level = map( iAttackTime, 0, 1023, 0, 900);
// Attack Time Level
envelope1.setAttackTime( AttackTime_level );
// Read the state of the button value 1
if ( digitalRead(iKeyboard1) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 1
iB1 = iB1 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteA);
}
else
{
iB1 = iB1 - 1;
}
// Read the state of the button value 2
if ( digitalRead(iKeyboard2) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 2
iB2 = iB2 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteAS);
}
else
{
iB2 = iB2 - 1;
}
// Read the state of the button value 3
if ( digitalRead(iKeyboard3) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 3
iB3 = iB3 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteB);
}
else
{
iB3 = iB3 - 1;
}
// Read the state of the button value 4
if ( digitalRead(iKeyboard4) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 4
iB4 = iB4 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteC);
}
else
{
iB4 = iB4 - 1;
}
// Read the state of the button value 5
if ( digitalRead(iKeyboard5) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 5
iB5 = iB5 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteCS);
}
else
{
iB5 = iB5 - 1;
}
// Read the state of the button value 6
if ( digitalRead(iKeyboard6) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 6
iB6 = iB6 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteD);
}
else
{
iB6 = iB6 - 1;
}
// Read the state of the button value 7
if ( digitalRead(iKeyboard7) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 7
iB7 = iB7 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteDS);
}
else
{
iB7 = iB7 - 1;
}
// Read the state of the button value 8
if ( digitalRead(iKeyboard8) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 8
iB8 = iB8 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteE);
}
else
{
iB8 = iB8 - 1;
}
// Read the state of the button value 10
if ( digitalRead(iKeyboard10) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 10
iB10 = iB10 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteF);
}
else
{
iB10 = iB10 - 1;
}
// Read the state of the button value 11
if ( digitalRead(iKeyboard11) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 11
iB11 = iB11 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteFS);
}
else
{
iB11 = iB11 - 1;
}
// Read the state of the button value 12
if ( digitalRead(iKeyboard12) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 12
iB12 = iB12 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteG);
}
else
{
iB12 = iB12 - 1;
}
// Read the state of the button value 13
if ( digitalRead(iKeyboard13) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 13
iB13 = iB13 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteGS);
}
else
{
iB13 = iB13 - 1;
}
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Frequency
isPitches();
// Keyboard
isKeyboard();
// Gain
// As byte, this will automatically roll around to 255 when it passes 0
iGain = mozziAnalogRead( iGainPot4 );
gain = map( iGain, 0, 1023, 0, 255);
}
// Update Audio
int updateAudio()
{
// Update Audio
// ADSR declaration/definition
envelope1.update();
// >>8 for AUDIO_MODE STANDARD
return (int) (envelope1.next() * aCarrier.next() * gain)>>8;
}
getOscillators.ino
// Oscillators
// isOscil
void isOscil(){
// Oscillators
// Value is 0-1023
iWave = mozziAnalogRead(potWave);
iWaveLevel = map(iWave, 0, 1023, 1, 5);
switch (iWaveLevel) {
case 1:
// Sine Wave
aCarrier.setTable(SIN2048_DATA);
break;
case 2:
// Cosine Wave
aCarrier.setTable(COS2048_DATA);
break;
case 3:
// Sawtooth Wave
aCarrier.setTable(SAW2048_DATA);
break;
case 4:
// Triangle Wave
aCarrier.setTable(TRIANGLE2048_DATA);
break;
case 5:
// Square Wave
aCarrier.setTable(SQUARE_NO_ALIAS_2048_DATA);
break;
default: // Case 0
// Sine Wave
aCarrier.setTable(SIN2048_DATA);
break;
}
}
getPitches.ino
// Pitches
// isPitches
void isPitches(){
// Frequency
// Value is 0-1023
iFreg = mozziAnalogRead(potFreq);
iFreg = map(iFreg, 0, 1023, 2, 5);
// Range Frequency Note Low => High
switch ( iFreg ) {
case 1:
// NOTE A1
iNoteA = NOTE_A1;
iNoteAS = NOTE_AS1;
iNoteB = NOTE_B1;
iNoteC = NOTE_C2;
iNoteCS = NOTE_CS2;
iNoteD = NOTE_D2;
iNoteDS = NOTE_DS2;
iNoteE = NOTE_E2;
iNoteF = NOTE_F2;
iNoteFS = NOTE_FS2;
iNoteG = NOTE_G2;
iNoteGS = NOTE_GS2;
break;
case 2:
// NOTE A2
iNoteA = NOTE_A2;
iNoteAS = NOTE_AS2;
iNoteB = NOTE_B2;
iNoteC = NOTE_C3;
iNoteCS = NOTE_CS3;
iNoteD = NOTE_D3;
iNoteDS = NOTE_DS3;
iNoteE = NOTE_E3;
iNoteF = NOTE_F3;
iNoteFS = NOTE_FS3;
iNoteG = NOTE_G3;
iNoteGS = NOTE_GS3;
break;
case 3:
// NOTE A3
iNoteA = NOTE_A3;
iNoteAS = NOTE_AS3;
iNoteB = NOTE_B3;
iNoteC = NOTE_C4;
iNoteD = NOTE_D4;
iNoteDS = NOTE_DS4;
iNoteE = NOTE_E4;
iNoteF = NOTE_F4;
iNoteFS = NOTE_FS4;
iNoteG = NOTE_G4;
iNoteGS = NOTE_GS4;
break;
case 4:
// NOTE A4
iNoteA = NOTE_A4;
iNoteAS = NOTE_AS4;
iNoteB = NOTE_B4;
iNoteC = NOTE_C5;
iNoteCS = NOTE_CS5;
iNoteD = NOTE_D5;
iNoteE = NOTE_E5;
iNoteF = NOTE_F5;
iNoteFS = NOTE_FS5;
iNoteG = NOTE_G5;
iNoteGS = NOTE_GS5;
break;
case 5:
// NOTE A5
iNoteA = NOTE_A5;
iNoteAS = NOTE_AS5;
iNoteB = NOTE_B5;
iNoteC = NOTE_C6;
iNoteCS = NOTE_CS6;
iNoteD = NOTE_D6;
iNoteDS = NOTE_DS6;
iNoteE = NOTE_E6;
iNoteF = NOTE_F6;
iNoteFS = NOTE_FS6;
iNoteG = NOTE_G6;
iNoteGS = NOTE_GS6;
break;
case 6:
// NOTE A6
iNoteA = NOTE_A6;
iNoteAS = NOTE_AS6;
iNoteB = NOTE_B6;
iNoteC = NOTE_C7;
iNoteCS = NOTE_CS7;
iNoteD = NOTE_D7;
iNoteDS = NOTE_DS7;
iNoteE = NOTE_E7;
iNoteF = NOTE_F7;
iNoteFS = NOTE_FS7;
iNoteG = NOTE_G7;
iNoteGS = NOTE_GS7;
break;
}
}
pitches.h
/***************************************************************** * Pitches NOTE_B0 <=> NOTE_DS8 - NOTE_A4 is "A" measured at 440Hz *****************************************************************/ #define NOTE_B0 31 #define NOTE_C1 33 #define NOTE_CS1 35 #define NOTE_D1 37 #define NOTE_DS1 39 #define NOTE_E1 41 #define NOTE_F1 44 #define NOTE_FS1 46 #define NOTE_G1 49 #define NOTE_GS1 52 #define NOTE_A1 55 #define NOTE_AS1 58 #define NOTE_B1 62 #define NOTE_C2 65 #define NOTE_CS2 69 #define NOTE_D2 73 #define NOTE_DS2 78 #define NOTE_E2 82 #define NOTE_F2 87 #define NOTE_FS2 93 #define NOTE_G2 98 #define NOTE_GS2 104 #define NOTE_A2 110 #define NOTE_AS2 117 #define NOTE_B2 123 #define NOTE_C3 131 #define NOTE_CS3 139 #define NOTE_D3 147 #define NOTE_DS3 156 #define NOTE_E3 165 #define NOTE_F3 175 #define NOTE_FS3 185 #define NOTE_G3 196 #define NOTE_GS3 208 #define NOTE_A3 220 #define NOTE_AS3 233 #define NOTE_B3 247 #define NOTE_C4 262 #define NOTE_CS4 277 #define NOTE_D4 294 #define NOTE_DS4 311 #define NOTE_E4 330 #define NOTE_F4 349 #define NOTE_FS4 370 #define NOTE_G4 392 #define NOTE_GS4 415 #define NOTE_A4 440 #define NOTE_AS4 466 #define NOTE_B4 494 #define NOTE_C5 523 #define NOTE_CS5 554 #define NOTE_D5 587 #define NOTE_DS5 622 #define NOTE_E5 659 #define NOTE_F5 698 #define NOTE_FS5 740 #define NOTE_G5 784 #define NOTE_GS5 831 #define NOTE_A5 880 #define NOTE_AS5 932 #define NOTE_B5 988 #define NOTE_C6 1047 #define NOTE_CS6 1109 #define NOTE_D6 1175 #define NOTE_DS6 1245 #define NOTE_E6 1319 #define NOTE_F6 1397 #define NOTE_FS6 1480 #define NOTE_G6 1568 #define NOTE_GS6 1661 #define NOTE_A6 1760 #define NOTE_AS6 1865 #define NOTE_B6 1976 #define NOTE_C7 2093 #define NOTE_CS7 2217 #define NOTE_D7 2349 #define NOTE_DS7 2489 #define NOTE_E7 2637 #define NOTE_F7 2794 #define NOTE_FS7 2960 #define NOTE_G7 3136 #define NOTE_GS7 3322 #define NOTE_A7 3520 #define NOTE_AS7 3729 #define NOTE_B7 3951 #define NOTE_C8 4186 #define NOTE_CS8 4435 #define NOTE_D8 4699 #define NOTE_DS8 4978
setup.ino
// Setup
void setup() {
// Setup Keyboard
setupKeyboard();
// Mozzi Start
startMozzi( CONTROL_RATE );
// Sets Attack and Decay Levels; assumes Sustain, Decay, and Idle times
envelope1.setADLevels(200,200);
// Sets Decay time in milliseconds
envelope1.setDecayTime(200);
// Sustain Time setting for envelope1
envelope1.setSustainTime(52500);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – Wave – Mk13
——
DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Oscillators #Arduino #SparkFunRedBoard #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
Sine Wave and Cosine Wave
A sine wave is a mathematical curve defined in terms of the sine trigonometric function. It is a type of continuous wave and also a smooth periodic function. It occurs often in mathematics, as well as in physics, engineering, signal processing and many other fields.
The term sinusoid describes any wave with characteristics of a sine wave. Thus, a cosine wave is also said to be sinusoidal, which is also a sine wave with a phase-shift. Because of this head start, it is often said that the cosine function leads the sine function or the sine lags the cosine. The term sinusoidal thereby collectively refers to both sine waves and cosine waves with any phase offset.
Sawtooth Wave
The sawtooth wave is a kind of non-sinusoidal waveform. It is so named based on its resemblance to the teeth of a plain toothed saw with a zero rake angle. A single sawtooth, or an intermittently triggered sawtooth, is called a ramp waveform.
Triangle Wave
A triangle wave is a non-sinusoidal waveform named for its triangular shape. It is a periodic, piecewise linear, continuous real function.
Square Wave
A square wave is a non-sinusoidal periodic waveform in which the amplitude alternates at a steady frequency between fixed minimum and maximum values, with the same duration at minimum and maximum. In an ideal square wave, the transitions between minimum and maximum are instantaneous.
DL2208Mk06
1 x SparkFun RedBoard
1 x 10k Ohm Rotary Potentiometer
1 x Potentiometer Knob – Blue
7 x Momentary Button – Panel Mount (Blue)
5 x Momentary Button – Panel Mount (Black)
12 x 10K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot – X-Large
5 x Slide Potentiometer Knob – X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
SparkFun RedBoard
LP0 – Analog A0 – Blue
LP1 – Analog A1 – Green
LP2 – Analog A2 – Grey
LP3 – Analog A3 – Yellow
LP4 – Analog A4 – Purple
PO5 – Analog A5
KY1 – 1
KY2 – 2
KY3 – 3
KY4 – 4
KY5 – 5
KY6 – 6
KY7 – 7
KY8 – 8
SPK – 9
KY10 – 10
KY11 – 11
KY12 – 12
KY13 – 13
VIN – +5V
GND – GND
——
DL2208Mk06p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Wave - Mk13
22-13
DL2208Mk06p.ino
1 x SparkFun RedBoard
1 x 10k Ohm Rotary Potentiometer
1 x Potentiometer Knob - Blue
7 x Momentary Button - Panel Mount (Blue)
5 x Momentary Button - Panel Mount (Black)
12 x 1K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot - X-Large
5 x Slide Potentiometer Knob - X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Pitches
#include "pitches.h"
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Sine Wave Table For Oscillator
#include <tables/sin2048_int8.h>
// Cosine Wave Table For Oscillator
#include <tables/cos2048_int8.h>
// Sawtooth Wave Table For Oscillator
#include <tables/saw2048_int8.h>
// Triangle Wave Table For Oscillator
#include <tables/triangle2048_int8.h>
// Square Wave Table For Oscillator
#include <tables/square_no_alias_2048_int8.h>
// ADSR envelope generator
#include <ADSR.h>
// Simple Keyboard
// Minimum reading of the button that generates a note
const int iKeyboard1 = 1;
const int iKeyboard2 = 2;
const int iKeyboard3 = 3;
const int iKeyboard4 = 4;
const int iKeyboard5 = 5;
const int iKeyboard6 = 6;
const int iKeyboard7 = 7;
const int iKeyboard8 = 8;
const int iKeyboard10 = 10;
const int iKeyboard11 = 11;
const int iKeyboard12 = 12;
const int iKeyboard13 = 13;
// Button is pressed
int iB1 = 1;
int iB2 = 1;
int iB3 = 1;
int iB4 = 1;
int iB5 = 1;
int iB6 = 1;
int iB7 = 1;
int iB8 = 1;
int iB10 = 1;
int iB11 = 1;
int iB12 = 1;
int iB13 = 1;
// Set the input for the potentiometer for Frequency to analog pin 2
const int potFreq = A2;
int iFreg = 1;
int iNoteA = 0;
int iNoteAS = 0;
int iNoteB = 0;
int iNoteC = 0;
int iNoteCS = 0;
int iNoteD = 0;
int iNoteDS = 0;
int iNoteE = 0;
int iNoteF = 0;
int iNoteFS = 0;
int iNoteG = 0;
int iNoteGS = 0;
// Potentiometer
int iPot4 = A4;
//Oscillator Functions declared for output envelope 1
// Carrier
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aCarrier;
// Set the input for the potentiometer for Oscillator to analog pin 4
const int potWave = A5;
// Wave
int iWave;
int iWaveLevel;
// ADSR declaration/definition
// Comment out to use control rate of 128
#define CONTROL_RATE 128
ADSR <CONTROL_RATE, CONTROL_RATE> envelope1;
// Set the input for the potentiometer Attack to analog pin 1
const int potAttack = A0;
// Attack
int attack_level = 0;
int iAttack = 0;
// Set the input for the potentiometer for Decay to analog pin 2
const int potDecay = A1;
// Decay
int decay_level = 0;
int iDecay = 0;
// Set the input for the potentiometer Attack Time to analog pin 3
const int potAttackTime = A3;
// Attack Time
int AttackTime_level = 0;
int iAttackTime = 0;
// Software Version Information
String sver = "22-13";
void loop() {
// Audio Hook
audioHook();
}
getKeyboard.ino
// getKeyboard
// setupKeyboard
void setupKeyboard() {
// Initialize the button pin as an input
pinMode(iKeyboard1, INPUT_PULLUP);
pinMode(iKeyboard2, INPUT_PULLUP);
pinMode(iKeyboard3, INPUT_PULLUP);
pinMode(iKeyboard4, INPUT_PULLUP);
pinMode(iKeyboard5, INPUT_PULLUP);
pinMode(iKeyboard6, INPUT_PULLUP);
pinMode(iKeyboard7, INPUT_PULLUP);
pinMode(iKeyboard8, INPUT_PULLUP);
pinMode(iKeyboard10, INPUT_PULLUP);
pinMode(iKeyboard11, INPUT_PULLUP);
pinMode(iKeyboard12, INPUT_PULLUP);
pinMode(iKeyboard13, INPUT_PULLUP);
}
// isKeyboard
void isKeyboard() {
// Oscillators
isOscil();
// Choose envelope levels
// attack_level
iAttack = mozziAnalogRead( potAttack );
attack_level = map( iAttack, 0, 1023, 100, 400);
// Attack Level
envelope1.setAttackLevel( attack_level );
// decay_level
iDecay = mozziAnalogRead( potDecay );
decay_level = map( iDecay, 0, 1023, 50, 255);
// Decay Level
envelope1.setDecayLevel( decay_level );
// AttackTime_level
iAttackTime = mozziAnalogRead( potAttackTime );
AttackTime_level = map( iAttackTime, 0, 1023, 0, 900);
// Attack Time Level
envelope1.setAttackTime( AttackTime_level );
// Read the state of the button value 1
if ( digitalRead(iKeyboard1) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 1
iB1 = iB1 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteA);
}
else
{
iB1 = iB1 - 1;
}
// Read the state of the button value 2
if ( digitalRead(iKeyboard2) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 2
iB2 = iB2 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteAS);
}
else
{
iB2 = iB2 - 1;
}
// Read the state of the button value 3
if ( digitalRead(iKeyboard3) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 3
iB3 = iB3 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteB);
}
else
{
iB3 = iB3 - 1;
}
// Read the state of the button value 4
if ( digitalRead(iKeyboard4) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 4
iB4 = iB4 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteC);
}
else
{
iB4 = iB4 - 1;
}
// Read the state of the button value 5
if ( digitalRead(iKeyboard5) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 5
iB5 = iB5 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteCS);
}
else
{
iB5 = iB5 - 1;
}
// Read the state of the button value 6
if ( digitalRead(iKeyboard6) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 6
iB6 = iB6 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteD);
}
else
{
iB6 = iB6 - 1;
}
// Read the state of the button value 7
if ( digitalRead(iKeyboard7) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 7
iB7 = iB7 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteDS);
}
else
{
iB7 = iB7 - 1;
}
// Read the state of the button value 8
if ( digitalRead(iKeyboard8) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 8
iB8 = iB8 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteE);
}
else
{
iB8 = iB8 - 1;
}
// Read the state of the button value 10
if ( digitalRead(iKeyboard10) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 10
iB10 = iB10 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteF);
}
else
{
iB10 = iB10 - 1;
}
// Read the state of the button value 11
if ( digitalRead(iKeyboard11) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 11
iB11 = iB11 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteFS);
}
else
{
iB11 = iB11 - 1;
}
// Read the state of the button value 12
if ( digitalRead(iKeyboard12) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 12
iB12 = iB12 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteG);
}
else
{
iB12 = iB12 - 1;
}
// Read the state of the button value 13
if ( digitalRead(iKeyboard13) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 13
iB13 = iB13 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aCarrier.setFreq(iNoteGS);
}
else
{
iB13 = iB13 - 1;
}
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Frequency
isPitches();
// Keyboard
isKeyboard();
}
// Update Audio
int updateAudio()
{
// Update Audio
// ADSR declaration/definition
envelope1.update();
// >>8 for AUDIO_MODE STANDARD
return (int) (envelope1.next() * aCarrier.next())>>8;
}
getOscillators.ino
// Oscillators
// isOscil
void isOscil(){
// Oscillators
// Value is 0-1023
iWave = mozziAnalogRead(potWave);
iWaveLevel = map(iWave, 0, 1023, 1, 5);
switch (iWaveLevel) {
case 1:
// Sine Wave
aCarrier.setTable(SIN2048_DATA);
break;
case 2:
// Cosine Wave
aCarrier.setTable(COS2048_DATA);
break;
case 3:
// Sawtooth Wave
aCarrier.setTable(SAW2048_DATA);
break;
case 4:
// Triangle Wave
aCarrier.setTable(TRIANGLE2048_DATA);
break;
case 5:
// Square Wave
aCarrier.setTable(SQUARE_NO_ALIAS_2048_DATA);
break;
default: // Case 0
// Sine Wave
aCarrier.setTable(SIN2048_DATA);
break;
}
}
getPitches.ino
// Pitches
// isPitches
void isPitches(){
// Frequency
// Value is 0-1023
iFreg = mozziAnalogRead(potFreq);
iFreg = map(iFreg, 0, 1023, 2, 6);
// Range Frequency Note Low => High
switch ( iFreg ) {
case 1:
// NOTE A1
iNoteA = NOTE_A1;
iNoteAS = NOTE_AS1;
iNoteB = NOTE_B1;
iNoteC = NOTE_C2;
iNoteCS = NOTE_CS2;
iNoteD = NOTE_D2;
iNoteDS = NOTE_DS2;
iNoteE = NOTE_E2;
iNoteF = NOTE_F2;
iNoteFS = NOTE_FS2;
iNoteG = NOTE_G2;
iNoteGS = NOTE_GS2;
break;
case 2:
// NOTE A2
iNoteA = NOTE_A2;
iNoteAS = NOTE_AS2;
iNoteB = NOTE_B2;
iNoteC = NOTE_C3;
iNoteCS = NOTE_CS3;
iNoteD = NOTE_D3;
iNoteDS = NOTE_DS3;
iNoteE = NOTE_E3;
iNoteF = NOTE_F3;
iNoteFS = NOTE_FS3;
iNoteG = NOTE_G3;
iNoteGS = NOTE_GS3;
break;
case 3:
// NOTE A3
iNoteA = NOTE_A3;
iNoteAS = NOTE_AS3;
iNoteB = NOTE_B3;
iNoteC = NOTE_C4;
iNoteD = NOTE_D4;
iNoteDS = NOTE_DS4;
iNoteE = NOTE_E4;
iNoteF = NOTE_F4;
iNoteFS = NOTE_FS4;
iNoteG = NOTE_G4;
iNoteGS = NOTE_GS4;
break;
case 4:
// NOTE A4
iNoteA = NOTE_A4;
iNoteAS = NOTE_AS4;
iNoteB = NOTE_B4;
iNoteC = NOTE_C5;
iNoteCS = NOTE_CS5;
iNoteD = NOTE_D5;
iNoteE = NOTE_E5;
iNoteF = NOTE_F5;
iNoteFS = NOTE_FS5;
iNoteG = NOTE_G5;
iNoteGS = NOTE_GS5;
break;
case 5:
// NOTE A5
iNoteA = NOTE_A5;
iNoteAS = NOTE_AS5;
iNoteB = NOTE_B5;
iNoteC = NOTE_C6;
iNoteCS = NOTE_CS6;
iNoteD = NOTE_D6;
iNoteDS = NOTE_DS6;
iNoteE = NOTE_E6;
iNoteF = NOTE_F6;
iNoteFS = NOTE_FS6;
iNoteG = NOTE_G6;
iNoteGS = NOTE_GS6;
break;
case 6:
// NOTE A6
iNoteA = NOTE_A6;
iNoteAS = NOTE_AS6;
iNoteB = NOTE_B6;
iNoteC = NOTE_C7;
iNoteCS = NOTE_CS7;
iNoteD = NOTE_D7;
iNoteDS = NOTE_DS7;
iNoteE = NOTE_E7;
iNoteF = NOTE_F7;
iNoteFS = NOTE_FS7;
iNoteG = NOTE_G7;
iNoteGS = NOTE_GS7;
break;
}
}
pitches.h
/***************************************************************** * Pitches NOTE_B0 <=> NOTE_DS8 - NOTE_A4 is "A" measured at 440Hz *****************************************************************/ #define NOTE_B0 31 #define NOTE_C1 33 #define NOTE_CS1 35 #define NOTE_D1 37 #define NOTE_DS1 39 #define NOTE_E1 41 #define NOTE_F1 44 #define NOTE_FS1 46 #define NOTE_G1 49 #define NOTE_GS1 52 #define NOTE_A1 55 #define NOTE_AS1 58 #define NOTE_B1 62 #define NOTE_C2 65 #define NOTE_CS2 69 #define NOTE_D2 73 #define NOTE_DS2 78 #define NOTE_E2 82 #define NOTE_F2 87 #define NOTE_FS2 93 #define NOTE_G2 98 #define NOTE_GS2 104 #define NOTE_A2 110 #define NOTE_AS2 117 #define NOTE_B2 123 #define NOTE_C3 131 #define NOTE_CS3 139 #define NOTE_D3 147 #define NOTE_DS3 156 #define NOTE_E3 165 #define NOTE_F3 175 #define NOTE_FS3 185 #define NOTE_G3 196 #define NOTE_GS3 208 #define NOTE_A3 220 #define NOTE_AS3 233 #define NOTE_B3 247 #define NOTE_C4 262 #define NOTE_CS4 277 #define NOTE_D4 294 #define NOTE_DS4 311 #define NOTE_E4 330 #define NOTE_F4 349 #define NOTE_FS4 370 #define NOTE_G4 392 #define NOTE_GS4 415 #define NOTE_A4 440 #define NOTE_AS4 466 #define NOTE_B4 494 #define NOTE_C5 523 #define NOTE_CS5 554 #define NOTE_D5 587 #define NOTE_DS5 622 #define NOTE_E5 659 #define NOTE_F5 698 #define NOTE_FS5 740 #define NOTE_G5 784 #define NOTE_GS5 831 #define NOTE_A5 880 #define NOTE_AS5 932 #define NOTE_B5 988 #define NOTE_C6 1047 #define NOTE_CS6 1109 #define NOTE_D6 1175 #define NOTE_DS6 1245 #define NOTE_E6 1319 #define NOTE_F6 1397 #define NOTE_FS6 1480 #define NOTE_G6 1568 #define NOTE_GS6 1661 #define NOTE_A6 1760 #define NOTE_AS6 1865 #define NOTE_B6 1976 #define NOTE_C7 2093 #define NOTE_CS7 2217 #define NOTE_D7 2349 #define NOTE_DS7 2489 #define NOTE_E7 2637 #define NOTE_F7 2794 #define NOTE_FS7 2960 #define NOTE_G7 3136 #define NOTE_GS7 3322 #define NOTE_A7 3520 #define NOTE_AS7 3729 #define NOTE_B7 3951 #define NOTE_C8 4186 #define NOTE_CS8 4435 #define NOTE_D8 4699 #define NOTE_DS8 4978
setup.ino
// Setup
void setup() {
// Setup Keyboard
setupKeyboard();
// Mozzi Start
startMozzi( CONTROL_RATE );
// Sets Attack and Decay Levels; assumes Sustain, Decay, and Idle times
envelope1.setADLevels(200,200);
// Sets Decay time in milliseconds
envelope1.setDecayTime(200);
// Sustain Time setting for envelope1
envelope1.setSustainTime(52500);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – Attack Time Level – Mk12
——
#DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Arduino #SparkFunRedBoard #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
Attack Time Level
When creating artificial waveforms in a synthesizer, changes in the signal amplitude over time are controlled by an envelope generator which typically has controls to adjust the Attack, Decay, Sustain and Release times, triggered by the pressing and subsequent release of a key on the keyboard. The Attack Time Level determines the time taken for the signal to grow to its maximum amplitude, initiated by the pressing of a key. By lengthening the attack and release times, you can create rich, lush tones. By shortening the time of the attack and release phases, you can create percussive, staccato sounds.
DL2208Mk05
1 x SparkFun RedBoard
7 x Momentary Button – Panel Mount (Blue)
5 x Momentary Button – Panel Mount (Black)
12 x 10K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot – X-Large
5 x Slide Potentiometer Knob – X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
SparkFun RedBoard
LP0 – Analog A0 – Blue
LP1 – Analog A1 – Green
LP2 – Analog A2 – Grey
LP3 – Analog A3 – Yellow
LP4 – Analog A4 – Purple
KY1 – 1
KY2 – 2
KY3 – 3
KY4 – 4
KY5 – 5
KY6 – 6
KY7 – 7
KY8 – 8
SPK – 9
KY10 – 10
KY11 – 11
KY12 – 12
KY13 – 13
VIN – +5V
GND – GND
——
DL2208Mk05p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Attack Time Level - Mk12
22-12
DL2208Mk05p.ino
1 x SparkFun RedBoard
7 x Momentary Button - Panel Mount (Blue)
5 x Momentary Button - Panel Mount (Black)
12 x 1K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot - X-Large
5 x Slide Potentiometer Knob - X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Pitches
#include "pitches.h"
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Sine Wave Table For Oscillator
#include <tables/sin2048_int8.h>
// ADSR envelope generator
#include <ADSR.h>
// Simple Keyboard
// Minimum reading of the button that generates a note
const int iKeyboard1 = 1;
const int iKeyboard2 = 2;
const int iKeyboard3 = 3;
const int iKeyboard4 = 4;
const int iKeyboard5 = 5;
const int iKeyboard6 = 6;
const int iKeyboard7 = 7;
const int iKeyboard8 = 8;
const int iKeyboard10 = 10;
const int iKeyboard11 = 11;
const int iKeyboard12 = 12;
const int iKeyboard13 = 13;
// Button is pressed
int iB1 = 1;
int iB2 = 1;
int iB3 = 1;
int iB4 = 1;
int iB5 = 1;
int iB6 = 1;
int iB7 = 1;
int iB8 = 1;
int iB10 = 1;
int iB11 = 1;
int iB12 = 1;
int iB13 = 1;
// Set the input for the potentiometer for Frequency to analog pin 2
const int potFreq = A2;
int iFreg = 1;
int iNoteA = 0;
int iNoteAS = 0;
int iNoteB = 0;
int iNoteC = 0;
int iNoteCS = 0;
int iNoteD = 0;
int iNoteDS = 0;
int iNoteE = 0;
int iNoteF = 0;
int iNoteFS = 0;
int iNoteG = 0;
int iNoteGS = 0;
// Potentiometer
int iPot4 = A4;
//Oscillator Functions declared for output envelope 1
// Sine Wave
Oscil <2048, AUDIO_RATE> aSin1(SIN2048_DATA);
// ADSR declaration/definition
// Comment out to use control rate of 128
#define CONTROL_RATE 128
ADSR <CONTROL_RATE, CONTROL_RATE> envelope1;
// Set the input for the potentiometer Attack to analog pin 1
const int potAttack = A0;
// Attack
int attack_level = 0;
int iAttack = 0;
// Set the input for the potentiometer for Decay to analog pin 2
const int potDecay = A1;
// Decay
int decay_level = 0;
int iDecay = 0;
// Set the input for the potentiometer Attack Time to analog pin 3
const int potAttackTime = A3;
// Attack Time
int AttackTime_level = 0;
int iAttackTime = 0;
// Software Version Information
String sver = "22-12";
void loop() {
// Audio Hook
audioHook();
}
getKeyboard.ino
// getKeyboard
// setupKeyboard
void setupKeyboard() {
// Initialize the button pin as an input
pinMode(iKeyboard1, INPUT_PULLUP);
pinMode(iKeyboard2, INPUT_PULLUP);
pinMode(iKeyboard3, INPUT_PULLUP);
pinMode(iKeyboard4, INPUT_PULLUP);
pinMode(iKeyboard5, INPUT_PULLUP);
pinMode(iKeyboard6, INPUT_PULLUP);
pinMode(iKeyboard7, INPUT_PULLUP);
pinMode(iKeyboard8, INPUT_PULLUP);
pinMode(iKeyboard10, INPUT_PULLUP);
pinMode(iKeyboard11, INPUT_PULLUP);
pinMode(iKeyboard12, INPUT_PULLUP);
pinMode(iKeyboard13, INPUT_PULLUP);
}
// isKeyboard
void isKeyboard() {
// Choose envelope levels
// attack_level
iAttack = mozziAnalogRead( potAttack );
attack_level = map( iAttack, 0, 1023, 100, 400);
// Attack Level
envelope1.setAttackLevel( attack_level );
// decay_level
iDecay = mozziAnalogRead( potDecay );
decay_level = map( iDecay, 0, 1023, 50, 255);
// Decay Level
envelope1.setDecayLevel( decay_level );
// AttackTime_level
iAttackTime = mozziAnalogRead( potAttackTime );
AttackTime_level = map( iAttackTime, 0, 1023, 0, 900);
// Attack Time Level
envelope1.setAttackTime( AttackTime_level );
// Read the state of the button value 1
if ( digitalRead(iKeyboard1) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 1
iB1 = iB1 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteA);
}
else
{
iB1 = iB1 - 1;
}
// Read the state of the button value 2
if ( digitalRead(iKeyboard2) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 2
iB2 = iB2 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteAS);
}
else
{
iB2 = iB2 - 1;
}
// Read the state of the button value 3
if ( digitalRead(iKeyboard3) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 3
iB3 = iB3 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteB);
}
else
{
iB3 = iB3 - 1;
}
// Read the state of the button value 4
if ( digitalRead(iKeyboard4) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 4
iB4 = iB4 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteC);
}
else
{
iB4 = iB4 - 1;
}
// Read the state of the button value 5
if ( digitalRead(iKeyboard5) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 5
iB5 = iB5 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteCS);
}
else
{
iB5 = iB5 - 1;
}
// Read the state of the button value 6
if ( digitalRead(iKeyboard6) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 6
iB6 = iB6 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteD);
}
else
{
iB6 = iB6 - 1;
}
// Read the state of the button value 7
if ( digitalRead(iKeyboard7) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 7
iB7 = iB7 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteDS);
}
else
{
iB7 = iB7 - 1;
}
// Read the state of the button value 8
if ( digitalRead(iKeyboard8) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 8
iB8 = iB8 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteE);
}
else
{
iB8 = iB8 - 1;
}
// Read the state of the button value 10
if ( digitalRead(iKeyboard10) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 10
iB10 = iB10 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteF);
}
else
{
iB10 = iB10 - 1;
}
// Read the state of the button value 11
if ( digitalRead(iKeyboard11) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 11
iB11 = iB11 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteFS);
}
else
{
iB11 = iB11 - 1;
}
// Read the state of the button value 12
if ( digitalRead(iKeyboard12) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 12
iB12 = iB12 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteG);
}
else
{
iB12 = iB12 - 1;
}
// Read the state of the button value 13
if ( digitalRead(iKeyboard13) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 13
iB13 = iB13 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteGS);
}
else
{
iB13 = iB13 - 1;
}
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Frequency
isPitches();
// Keyboard
isKeyboard();
}
// Update Audio
int updateAudio()
{
// Update Audio
// ADSR declaration/definition
envelope1.update();
// >>8 for AUDIO_MODE STANDARD
return (int) (envelope1.next() * aSin1.next())>>8;
}
getPitches.ino
// Pitches
// isPitches
void isPitches(){
// Frequency
// Value is 0-1023
iFreg = mozziAnalogRead(potFreq);
iFreg = map(iFreg, 0, 1023, 2, 6);
// Range Frequency Note Low => High
switch ( iFreg ) {
case 1:
// NOTE A1
iNoteA = NOTE_A1;
iNoteAS = NOTE_AS1;
iNoteB = NOTE_B1;
iNoteC = NOTE_C2;
iNoteCS = NOTE_CS2;
iNoteD = NOTE_D2;
iNoteDS = NOTE_DS2;
iNoteE = NOTE_E2;
iNoteF = NOTE_F2;
iNoteFS = NOTE_FS2;
iNoteG = NOTE_G2;
iNoteGS = NOTE_GS2;
break;
case 2:
// NOTE A2
iNoteA = NOTE_A2;
iNoteAS = NOTE_AS2;
iNoteB = NOTE_B2;
iNoteC = NOTE_C3;
iNoteCS = NOTE_CS3;
iNoteD = NOTE_D3;
iNoteDS = NOTE_DS3;
iNoteE = NOTE_E3;
iNoteF = NOTE_F3;
iNoteFS = NOTE_FS3;
iNoteG = NOTE_G3;
iNoteGS = NOTE_GS3;
break;
case 3:
// NOTE A3
iNoteA = NOTE_A3;
iNoteAS = NOTE_AS3;
iNoteB = NOTE_B3;
iNoteC = NOTE_C4;
iNoteD = NOTE_D4;
iNoteDS = NOTE_DS4;
iNoteE = NOTE_E4;
iNoteF = NOTE_F4;
iNoteFS = NOTE_FS4;
iNoteG = NOTE_G4;
iNoteGS = NOTE_GS4;
break;
case 4:
// NOTE A4
iNoteA = NOTE_A4;
iNoteAS = NOTE_AS4;
iNoteB = NOTE_B4;
iNoteC = NOTE_C5;
iNoteCS = NOTE_CS5;
iNoteD = NOTE_D5;
iNoteE = NOTE_E5;
iNoteF = NOTE_F5;
iNoteFS = NOTE_FS5;
iNoteG = NOTE_G5;
iNoteGS = NOTE_GS5;
break;
case 5:
// NOTE A5
iNoteA = NOTE_A5;
iNoteAS = NOTE_AS5;
iNoteB = NOTE_B5;
iNoteC = NOTE_C6;
iNoteCS = NOTE_CS6;
iNoteD = NOTE_D6;
iNoteDS = NOTE_DS6;
iNoteE = NOTE_E6;
iNoteF = NOTE_F6;
iNoteFS = NOTE_FS6;
iNoteG = NOTE_G6;
iNoteGS = NOTE_GS6;
break;
case 6:
// NOTE A6
iNoteA = NOTE_A6;
iNoteAS = NOTE_AS6;
iNoteB = NOTE_B6;
iNoteC = NOTE_C7;
iNoteCS = NOTE_CS7;
iNoteD = NOTE_D7;
iNoteDS = NOTE_DS7;
iNoteE = NOTE_E7;
iNoteF = NOTE_F7;
iNoteFS = NOTE_FS7;
iNoteG = NOTE_G7;
iNoteGS = NOTE_GS7;
break;
}
}
pitches.h
/***************************************************************** * Pitches NOTE_B0 <=> NOTE_DS8 - NOTE_A4 is "A" measured at 440Hz *****************************************************************/ #define NOTE_B0 31 #define NOTE_C1 33 #define NOTE_CS1 35 #define NOTE_D1 37 #define NOTE_DS1 39 #define NOTE_E1 41 #define NOTE_F1 44 #define NOTE_FS1 46 #define NOTE_G1 49 #define NOTE_GS1 52 #define NOTE_A1 55 #define NOTE_AS1 58 #define NOTE_B1 62 #define NOTE_C2 65 #define NOTE_CS2 69 #define NOTE_D2 73 #define NOTE_DS2 78 #define NOTE_E2 82 #define NOTE_F2 87 #define NOTE_FS2 93 #define NOTE_G2 98 #define NOTE_GS2 104 #define NOTE_A2 110 #define NOTE_AS2 117 #define NOTE_B2 123 #define NOTE_C3 131 #define NOTE_CS3 139 #define NOTE_D3 147 #define NOTE_DS3 156 #define NOTE_E3 165 #define NOTE_F3 175 #define NOTE_FS3 185 #define NOTE_G3 196 #define NOTE_GS3 208 #define NOTE_A3 220 #define NOTE_AS3 233 #define NOTE_B3 247 #define NOTE_C4 262 #define NOTE_CS4 277 #define NOTE_D4 294 #define NOTE_DS4 311 #define NOTE_E4 330 #define NOTE_F4 349 #define NOTE_FS4 370 #define NOTE_G4 392 #define NOTE_GS4 415 #define NOTE_A4 440 #define NOTE_AS4 466 #define NOTE_B4 494 #define NOTE_C5 523 #define NOTE_CS5 554 #define NOTE_D5 587 #define NOTE_DS5 622 #define NOTE_E5 659 #define NOTE_F5 698 #define NOTE_FS5 740 #define NOTE_G5 784 #define NOTE_GS5 831 #define NOTE_A5 880 #define NOTE_AS5 932 #define NOTE_B5 988 #define NOTE_C6 1047 #define NOTE_CS6 1109 #define NOTE_D6 1175 #define NOTE_DS6 1245 #define NOTE_E6 1319 #define NOTE_F6 1397 #define NOTE_FS6 1480 #define NOTE_G6 1568 #define NOTE_GS6 1661 #define NOTE_A6 1760 #define NOTE_AS6 1865 #define NOTE_B6 1976 #define NOTE_C7 2093 #define NOTE_CS7 2217 #define NOTE_D7 2349 #define NOTE_DS7 2489 #define NOTE_E7 2637 #define NOTE_F7 2794 #define NOTE_FS7 2960 #define NOTE_G7 3136 #define NOTE_GS7 3322 #define NOTE_A7 3520 #define NOTE_AS7 3729 #define NOTE_B7 3951 #define NOTE_C8 4186 #define NOTE_CS8 4435 #define NOTE_D8 4699 #define NOTE_DS8 4978
setup.ino
// Setup
void setup() {
// Setup Keyboard
setupKeyboard();
// Mozzi Start
startMozzi( CONTROL_RATE );
// Sets Attack and Decay Levels; assumes Sustain, Decay, and Idle times
envelope1.setADLevels(200,200);
// Sets Decay time in milliseconds
envelope1.setDecayTime(200);
// Sustain Time setting for envelope1
envelope1.setSustainTime(52500);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – 4 Stages – Mk11
——
#DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Arduino #SparkFunRedBoard #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
4 Stages of an ADSR Envelope
An ADSR envelope features these four stages.
- 1 Attack: The attack phase begins the moment a key is pressed. This phase determines how quickly a sound reaches full volume before entering the decay phase. On an analog synthesizer, this phase is typically instantaneous. Some modern synthesizers allow for the attack time to be delayed.
- 2 Decay: The decay phase determines the length of the drop from the peak level to the sustain level of a sound. The decay time can often be altered to change the overall sound. For instance, a short attack and a long decay will produce a sound that reaches maximum amplitude quickly and falls slowly to the sustain level.
- 3 Sustain: The sustain phase does not specify a length of time. Instead, it determines the volume of a sound for the entire hold time between the decay and release phases.
- 4 Release: The final phase determines the speed at which a sound ends from the moment you release the key. Depending on the desired sound, the release time can be short or long.
DL2208Mk04
1 x SparkFun RedBoard
7 x Momentary Button – Panel Mount (Blue)
5 x Momentary Button – Panel Mount (Black)
12 x 10K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot – X-Large
5 x Slide Potentiometer Knob – X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
SparkFun RedBoard
LP0 – Analog A0 – Blue
LP1 – Analog A1 – Green
LP2 – Analog A2 – Grey
LP3 – Analog A3 – Yellow
LP4 – Analog A4 – Purple
KY1 – 1
KY2 – 2
KY3 – 3
KY4 – 4
KY5 – 5
KY6 – 6
KY7 – 7
KY8 – 8
SPK – 9
KY10 – 10
KY11 – 11
KY12 – 12
KY13 – 13
VIN – +5V
GND – GND
DL2208Mk04p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - 4 Stages - Mk11
22-11
DL2208Mk04p.ino
1 x SparkFun RedBoard
7 x Momentary Button - Panel Mount (Blue)
5 x Momentary Button - Panel Mount (Black)
12 x 1K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot - X-Large
5 x Slide Potentiometer Knob - X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Pitches
#include "pitches.h"
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Sine Wave Table For Oscillator
#include <tables/sin2048_int8.h>
// ADSR envelope generator
#include <ADSR.h>
// Simple Keyboard
// Minimum reading of the button that generates a note
const int iKeyboard1 = 1;
const int iKeyboard2 = 2;
const int iKeyboard3 = 3;
const int iKeyboard4 = 4;
const int iKeyboard5 = 5;
const int iKeyboard6 = 6;
const int iKeyboard7 = 7;
const int iKeyboard8 = 8;
const int iKeyboard10 = 10;
const int iKeyboard11 = 11;
const int iKeyboard12 = 12;
const int iKeyboard13 = 13;
// Button is pressed
int iB1 = 1;
int iB2 = 1;
int iB3 = 1;
int iB4 = 1;
int iB5 = 1;
int iB6 = 1;
int iB7 = 1;
int iB8 = 1;
int iB10 = 1;
int iB11 = 1;
int iB12 = 1;
int iB13 = 1;
// Set the input for the potentiometer for Frequency to analog pin 2
const int potFreq = A2;
int iFreg = 1;
int iNoteA = 0;
int iNoteAS = 0;
int iNoteB = 0;
int iNoteC = 0;
int iNoteCS = 0;
int iNoteD = 0;
int iNoteDS = 0;
int iNoteE = 0;
int iNoteF = 0;
int iNoteFS = 0;
int iNoteG = 0;
int iNoteGS = 0;
// Potentiometer
int iPot3 = A3;
int iPot4 = A4;
//Oscillator Functions declared for output envelope 1
// Sine Wave
Oscil <2048, AUDIO_RATE> aSin1(SIN2048_DATA);
// ADSR declaration/definition
// Comment out to use control rate of 128
#define CONTROL_RATE 128
ADSR <CONTROL_RATE, CONTROL_RATE> envelope1;
// Set the input for the potentiometer Attack to analog pin 1
const int potAttack = A0;
// Attack
int attack_level = 0;
int iAttack = 0;
// Set the input for the potentiometer for Decay to analog pin 2
const int potDecay = A1;
// Decay
int decay_level = 0;
int iDecay = 0;
// Software Version Information
String sver = "22-11";
void loop() {
// Audio Hook
audioHook();
}
getKeyboard.ino
// getKeyboard
// setupKeyboard
void setupKeyboard() {
// Initialize the button pin as an input
pinMode(iKeyboard1, INPUT_PULLUP);
pinMode(iKeyboard2, INPUT_PULLUP);
pinMode(iKeyboard3, INPUT_PULLUP);
pinMode(iKeyboard4, INPUT_PULLUP);
pinMode(iKeyboard5, INPUT_PULLUP);
pinMode(iKeyboard6, INPUT_PULLUP);
pinMode(iKeyboard7, INPUT_PULLUP);
pinMode(iKeyboard8, INPUT_PULLUP);
pinMode(iKeyboard10, INPUT_PULLUP);
pinMode(iKeyboard11, INPUT_PULLUP);
pinMode(iKeyboard12, INPUT_PULLUP);
pinMode(iKeyboard13, INPUT_PULLUP);
}
// isKeyboard
void isKeyboard() {
// Choose envelope levels
// attack_level
iAttack = mozziAnalogRead( potAttack );
attack_level = map( iAttack, 0, 1023, 100, 400);
// Attack Level
envelope1.setAttackLevel( attack_level );
// decay_level
iDecay = mozziAnalogRead( potDecay );
decay_level = map( iDecay, 0, 1023, 50, 255);
// Decay Level
envelope1.setDecayLevel( decay_level );
// Read the state of the button value 1
if ( digitalRead(iKeyboard1) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 1
iB1 = iB1 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteA);
}
else
{
iB1 = iB1 - 1;
}
// Read the state of the button value 2
if ( digitalRead(iKeyboard2) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 2
iB2 = iB2 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteAS);
}
else
{
iB2 = iB2 - 1;
}
// Read the state of the button value 3
if ( digitalRead(iKeyboard3) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 3
iB3 = iB3 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteB);
}
else
{
iB3 = iB3 - 1;
}
// Read the state of the button value 4
if ( digitalRead(iKeyboard4) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 4
iB4 = iB4 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteC);
}
else
{
iB4 = iB4 - 1;
}
// Read the state of the button value 5
if ( digitalRead(iKeyboard5) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 5
iB5 = iB5 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteCS);
}
else
{
iB5 = iB5 - 1;
}
// Read the state of the button value 6
if ( digitalRead(iKeyboard6) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 6
iB6 = iB6 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteD);
}
else
{
iB6 = iB6 - 1;
}
// Read the state of the button value 7
if ( digitalRead(iKeyboard7) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 7
iB7 = iB7 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteDS);
}
else
{
iB7 = iB7 - 1;
}
// Read the state of the button value 8
if ( digitalRead(iKeyboard8) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 8
iB8 = iB8 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteE);
}
else
{
iB8 = iB8 - 1;
}
// Read the state of the button value 10
if ( digitalRead(iKeyboard10) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 10
iB10 = iB10 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteF);
}
else
{
iB10 = iB10 - 1;
}
// Read the state of the button value 11
if ( digitalRead(iKeyboard11) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 11
iB11 = iB11 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteFS);
}
else
{
iB11 = iB11 - 1;
}
// Read the state of the button value 12
if ( digitalRead(iKeyboard12) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 12
iB12 = iB12 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteG);
}
else
{
iB12 = iB12 - 1;
}
// Read the state of the button value 13
if ( digitalRead(iKeyboard13) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 13
iB13 = iB13 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteGS);
}
else
{
iB13 = iB13 - 1;
}
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Frequency
isPitches();
// Keyboard
isKeyboard();
}
// Update Audio
int updateAudio()
{
// Update Audio
// ADSR declaration/definition
envelope1.update();
// >>8 for AUDIO_MODE STANDARD
return (int) (envelope1.next() * aSin1.next())>>8;
}
getPitches.ino
// Pitches
// isPitches
void isPitches(){
// Frequency
// Value is 0-1023
iFreg = mozziAnalogRead(potFreq);
iFreg = map(iFreg, 0, 1023, 2, 6);
// Range Frequency Note Low => High
switch ( iFreg ) {
case 1:
// NOTE A1
iNoteA = NOTE_A1;
iNoteAS = NOTE_AS1;
iNoteB = NOTE_B1;
iNoteC = NOTE_C2;
iNoteCS = NOTE_CS2;
iNoteD = NOTE_D2;
iNoteDS = NOTE_DS2;
iNoteE = NOTE_E2;
iNoteF = NOTE_F2;
iNoteFS = NOTE_FS2;
iNoteG = NOTE_G2;
iNoteGS = NOTE_GS2;
break;
case 2:
// NOTE A2
iNoteA = NOTE_A2;
iNoteAS = NOTE_AS2;
iNoteB = NOTE_B2;
iNoteC = NOTE_C3;
iNoteCS = NOTE_CS3;
iNoteD = NOTE_D3;
iNoteDS = NOTE_DS3;
iNoteE = NOTE_E3;
iNoteF = NOTE_F3;
iNoteFS = NOTE_FS3;
iNoteG = NOTE_G3;
iNoteGS = NOTE_GS3;
break;
case 3:
// NOTE A3
iNoteA = NOTE_A3;
iNoteAS = NOTE_AS3;
iNoteB = NOTE_B3;
iNoteC = NOTE_C4;
iNoteD = NOTE_D4;
iNoteDS = NOTE_DS4;
iNoteE = NOTE_E4;
iNoteF = NOTE_F4;
iNoteFS = NOTE_FS4;
iNoteG = NOTE_G4;
iNoteGS = NOTE_GS4;
break;
case 4:
// NOTE A4
iNoteA = NOTE_A4;
iNoteAS = NOTE_AS4;
iNoteB = NOTE_B4;
iNoteC = NOTE_C5;
iNoteCS = NOTE_CS5;
iNoteD = NOTE_D5;
iNoteE = NOTE_E5;
iNoteF = NOTE_F5;
iNoteFS = NOTE_FS5;
iNoteG = NOTE_G5;
iNoteGS = NOTE_GS5;
break;
case 5:
// NOTE A5
iNoteA = NOTE_A5;
iNoteAS = NOTE_AS5;
iNoteB = NOTE_B5;
iNoteC = NOTE_C6;
iNoteCS = NOTE_CS6;
iNoteD = NOTE_D6;
iNoteDS = NOTE_DS6;
iNoteE = NOTE_E6;
iNoteF = NOTE_F6;
iNoteFS = NOTE_FS6;
iNoteG = NOTE_G6;
iNoteGS = NOTE_GS6;
break;
case 6:
// NOTE A6
iNoteA = NOTE_A6;
iNoteAS = NOTE_AS6;
iNoteB = NOTE_B6;
iNoteC = NOTE_C7;
iNoteCS = NOTE_CS7;
iNoteD = NOTE_D7;
iNoteDS = NOTE_DS7;
iNoteE = NOTE_E7;
iNoteF = NOTE_F7;
iNoteFS = NOTE_FS7;
iNoteG = NOTE_G7;
iNoteGS = NOTE_GS7;
break;
}
}
pitches.h
/***************************************************************** * Pitches NOTE_B0 <=> NOTE_DS8 - NOTE_A4 is "A" measured at 440Hz *****************************************************************/ #define NOTE_B0 31 #define NOTE_C1 33 #define NOTE_CS1 35 #define NOTE_D1 37 #define NOTE_DS1 39 #define NOTE_E1 41 #define NOTE_F1 44 #define NOTE_FS1 46 #define NOTE_G1 49 #define NOTE_GS1 52 #define NOTE_A1 55 #define NOTE_AS1 58 #define NOTE_B1 62 #define NOTE_C2 65 #define NOTE_CS2 69 #define NOTE_D2 73 #define NOTE_DS2 78 #define NOTE_E2 82 #define NOTE_F2 87 #define NOTE_FS2 93 #define NOTE_G2 98 #define NOTE_GS2 104 #define NOTE_A2 110 #define NOTE_AS2 117 #define NOTE_B2 123 #define NOTE_C3 131 #define NOTE_CS3 139 #define NOTE_D3 147 #define NOTE_DS3 156 #define NOTE_E3 165 #define NOTE_F3 175 #define NOTE_FS3 185 #define NOTE_G3 196 #define NOTE_GS3 208 #define NOTE_A3 220 #define NOTE_AS3 233 #define NOTE_B3 247 #define NOTE_C4 262 #define NOTE_CS4 277 #define NOTE_D4 294 #define NOTE_DS4 311 #define NOTE_E4 330 #define NOTE_F4 349 #define NOTE_FS4 370 #define NOTE_G4 392 #define NOTE_GS4 415 #define NOTE_A4 440 #define NOTE_AS4 466 #define NOTE_B4 494 #define NOTE_C5 523 #define NOTE_CS5 554 #define NOTE_D5 587 #define NOTE_DS5 622 #define NOTE_E5 659 #define NOTE_F5 698 #define NOTE_FS5 740 #define NOTE_G5 784 #define NOTE_GS5 831 #define NOTE_A5 880 #define NOTE_AS5 932 #define NOTE_B5 988 #define NOTE_C6 1047 #define NOTE_CS6 1109 #define NOTE_D6 1175 #define NOTE_DS6 1245 #define NOTE_E6 1319 #define NOTE_F6 1397 #define NOTE_FS6 1480 #define NOTE_G6 1568 #define NOTE_GS6 1661 #define NOTE_A6 1760 #define NOTE_AS6 1865 #define NOTE_B6 1976 #define NOTE_C7 2093 #define NOTE_CS7 2217 #define NOTE_D7 2349 #define NOTE_DS7 2489 #define NOTE_E7 2637 #define NOTE_F7 2794 #define NOTE_FS7 2960 #define NOTE_G7 3136 #define NOTE_GS7 3322 #define NOTE_A7 3520 #define NOTE_AS7 3729 #define NOTE_B7 3951 #define NOTE_C8 4186 #define NOTE_CS8 4435 #define NOTE_D8 4699 #define NOTE_DS8 4978
setup.ino
// Setup
void setup() {
// Setup Keyboard
setupKeyboard();
// Mozzi Start
startMozzi( CONTROL_RATE );
// Sets Attack and Decay Levels; assumes Sustain, Decay, and Idle times
envelope1.setADLevels(200,200);
// Sets Decay time in milliseconds
envelope1.setDecayTime(200);
// Sustain Time setting for envelope1
envelope1.setSustainTime(52500);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – ADSR Envelope – Mk10
——
#DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Arduino #SparkFunRedBoard #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
What Is an Envelope in Music?
An envelope is a term used to describe the evolution of a sound in a piece of music. Envelopes are fed through an envelope generator, the component within an analog synthesizer that signals when and how a sound should change. The envelope defines the trajectory and modulation of a sound, while the envelope generator controls the behavior of the envelope.
What Is an ADSR Envelope?
An ADSR envelope is a type of envelope control mechanism commonly found in the synthesizer and samplers used in electronic music. ADSR stands for the envelope’s four stages of modulation: attack, decay, sustain, and release. These stages control the level of the sound from the moment you press a key or advance a music sequencer.
In sound design, ADSR envelopes are typically used to control the loudness of a sound. ADSR envelopes typically produce a sound that takes the shape of a waveform rising in the attack stage, slightly declining during the decay stage, plateauing during the sustain stage, and finally falling at the return stage.
DL2208Mk03
1 x SparkFun RedBoard
7 x Momentary Button – Panel Mount (Blue)
5 x Momentary Button – Panel Mount (Black)
12 x 10K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot – X-Large
5 x Slide Potentiometer Knob – X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
SparkFun RedBoard
LP0 – Analog A0 – Blue
LP1 – Analog A1 – Green
LP2 – Analog A2 – Grey
LP3 – Analog A3 – Yellow
LP4 – Analog A4 – Purple
KY1 – 1
KY2 – 2
KY3 – 3
KY4 – 4
KY5 – 5
KY6 – 6
KY7 – 7
KY8 – 8
SPK – 9
KY10 – 10
KY11 – 11
KY12 – 12
KY13 – 13
VIN – +5V
GND – GND
——
DL2208Mk03p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - ADSR Envelope - Mk10
22-10
DL2208Mk03p.ino
1 x SparkFun RedBoard
7 x Momentary Button - Panel Mount (Blue)
5 x Momentary Button - Panel Mount (Black)
12 x 1K Ohm Resistor
5 x 10k Ohm Slide Linear Taper Pot - X-Large
5 x Slide Potentiometer Knob - X-Large
1 x Perfboard 13.5 cm x 11 cm
1 x SparkFun Solderable Breadboard
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun ProtoShield
1 x Insignia Speakers
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Pitches
#include "pitches.h"
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Sine Wave Table For Oscillator
#include <tables/sin2048_int8.h>
// ADSR envelope generator
#include <ADSR.h>
// Simple Keyboard
// Minimum reading of the button that generates a note
const int iKeyboard1 = 1;
const int iKeyboard2 = 2;
const int iKeyboard3 = 3;
const int iKeyboard4 = 4;
const int iKeyboard5 = 5;
const int iKeyboard6 = 6;
const int iKeyboard7 = 7;
const int iKeyboard8 = 8;
const int iKeyboard10 = 10;
const int iKeyboard11 = 11;
const int iKeyboard12 = 12;
const int iKeyboard13 = 13;
// Button is pressed
int iB1 = 1;
int iB2 = 1;
int iB3 = 1;
int iB4 = 1;
int iB5 = 1;
int iB6 = 1;
int iB7 = 1;
int iB8 = 1;
int iB10 = 1;
int iB11 = 1;
int iB12 = 1;
int iB13 = 1;
// Set the input for the potentiometer for Frequency to analog pin 3
//const int potFreq = A3;
int iFreg = 1;
int iNoteA = 0;
int iNoteAS = 0;
int iNoteB = 0;
int iNoteC = 0;
int iNoteCS = 0;
int iNoteD = 0;
int iNoteDS = 0;
int iNoteE = 0;
int iNoteF = 0;
int iNoteFS = 0;
int iNoteG = 0;
int iNoteGS = 0;
// Potentiometer
int iPot2 = A2;
int iPot3 = A3;
int iPot4 = A4;
//Oscillator Functions declared for output envelope 1
// Sine Wave
Oscil <2048, AUDIO_RATE> aSin1(SIN2048_DATA);
// ADSR declaration/definition
// Comment out to use control rate of 128
#define CONTROL_RATE 128
ADSR <CONTROL_RATE, CONTROL_RATE> envelope1;
// Set the input for the potentiometer Attack to analog pin 1
const int potAttack = A0;
// Attack
int attack_level = 0;
int iAttack = 0;
// Set the input for the potentiometer for Decay to analog pin 2
const int potDecay = A1;
// Decay
int decay_level = 0;
int iDecay = 0;
// Software Version Information
String sver = "22-10";
void loop() {
// Audio Hook
audioHook();
}
getKeyboard.ino
// getKeyboard
// setupKeyboard
void setupKeyboard() {
// Initialize the button pin as an input
pinMode(iKeyboard1, INPUT_PULLUP);
pinMode(iKeyboard2, INPUT_PULLUP);
pinMode(iKeyboard3, INPUT_PULLUP);
pinMode(iKeyboard4, INPUT_PULLUP);
pinMode(iKeyboard5, INPUT_PULLUP);
pinMode(iKeyboard6, INPUT_PULLUP);
pinMode(iKeyboard7, INPUT_PULLUP);
pinMode(iKeyboard8, INPUT_PULLUP);
pinMode(iKeyboard10, INPUT_PULLUP);
pinMode(iKeyboard11, INPUT_PULLUP);
pinMode(iKeyboard12, INPUT_PULLUP);
pinMode(iKeyboard13, INPUT_PULLUP);
}
// isKeyboard
void isKeyboard() {
// Choose envelope levels
// attack_level
iAttack = mozziAnalogRead( potAttack );
attack_level = map( iAttack, 0, 1023, 0, 255);
// decay_level
iDecay = mozziAnalogRead( potDecay );
decay_level = map( iDecay, 0, 1023, 0, 255);
// set AD Levels
envelope1.setADLevels(attack_level,decay_level);
// Read the state of the button value 1
if ( digitalRead(iKeyboard1) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 1
iB1 = iB1 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteA);
}
else
{
iB1 = iB1 - 1;
}
// Read the state of the button value 2
if ( digitalRead(iKeyboard2) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 2
iB2 = iB2 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteAS);
}
else
{
iB2 = iB2 - 1;
}
// Read the state of the button value 3
if ( digitalRead(iKeyboard3) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 3
iB3 = iB3 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteB);
}
else
{
iB3 = iB3 - 1;
}
// Read the state of the button value 4
if ( digitalRead(iKeyboard4) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 4
iB4 = iB4 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteC);
}
else
{
iB4 = iB4 - 1;
}
// Read the state of the button value 5
if ( digitalRead(iKeyboard5) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 5
iB5 = iB5 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteCS);
}
else
{
iB5 = iB5 - 1;
}
// Read the state of the button value 6
if ( digitalRead(iKeyboard6) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 6
iB6 = iB6 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteD);
}
else
{
iB6 = iB6 - 1;
}
// Read the state of the button value 7
if ( digitalRead(iKeyboard7) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 7
iB7 = iB7 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteDS);
}
else
{
iB7 = iB7 - 1;
}
// Read the state of the button value 8
if ( digitalRead(iKeyboard8) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 8
iB8 = iB8 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteE);
}
else
{
iB8 = iB8 - 1;
}
// Read the state of the button value 10
if ( digitalRead(iKeyboard10) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 10
iB10 = iB10 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteF);
}
else
{
iB10 = iB10 - 1;
}
// Read the state of the button value 11
if ( digitalRead(iKeyboard11) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 11
iB11 = iB11 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteFS);
}
else
{
iB11 = iB11 - 1;
}
// Read the state of the button value 12
if ( digitalRead(iKeyboard12) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 12
iB12 = iB12 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteG);
}
else
{
iB12 = iB12 - 1;
}
// Read the state of the button value 13
if ( digitalRead(iKeyboard13) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 13
iB13 = iB13 + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteGS);
}
else
{
iB13 = iB13 - 1;
}
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Frequency
isPitches();
// Keyboard
isKeyboard();
}
// Update Audio
int updateAudio()
{
// Update Audio
// ADSR declaration/definition
envelope1.update();
// >>8 for AUDIO_MODE STANDARD
return (int) (envelope1.next() * aSin1.next())>>8;
}
getPitches.ino
// Pitches
// isPitches
void isPitches(){
// Frequency
// Value is 0-1023
//iFreg = mozziAnalogRead(potFreq);
//iFreg = map(iFreg, 0, 1023, 3, 6);
iFreg = 5;
// Range Frequency Note Low => High
switch ( iFreg ) {
case 1:
// NOTE A1
iNoteA = NOTE_A1;
iNoteAS = NOTE_AS1;
iNoteB = NOTE_B1;
iNoteC = NOTE_C2;
iNoteCS = NOTE_CS2;
iNoteD = NOTE_D2;
iNoteDS = NOTE_DS2;
iNoteE = NOTE_E2;
iNoteF = NOTE_F2;
iNoteFS = NOTE_FS2;
iNoteG = NOTE_G2;
iNoteGS = NOTE_GS2;
break;
case 2:
// NOTE A2
iNoteA = NOTE_A2;
iNoteAS = NOTE_AS2;
iNoteB = NOTE_B2;
iNoteC = NOTE_C3;
iNoteCS = NOTE_CS3;
iNoteD = NOTE_D3;
iNoteDS = NOTE_DS3;
iNoteE = NOTE_E3;
iNoteF = NOTE_F3;
iNoteFS = NOTE_FS3;
iNoteG = NOTE_G3;
iNoteGS = NOTE_GS3;
break;
case 3:
// NOTE A3
iNoteA = NOTE_A3;
iNoteAS = NOTE_AS3;
iNoteB = NOTE_B3;
iNoteC = NOTE_C4;
iNoteD = NOTE_D4;
iNoteDS = NOTE_DS4;
iNoteE = NOTE_E4;
iNoteF = NOTE_F4;
iNoteFS = NOTE_FS4;
iNoteG = NOTE_G4;
iNoteGS = NOTE_GS4;
break;
case 4:
// NOTE A4
iNoteA = NOTE_A4;
iNoteAS = NOTE_AS4;
iNoteB = NOTE_B4;
iNoteC = NOTE_C5;
iNoteCS = NOTE_CS5;
iNoteD = NOTE_D5;
iNoteE = NOTE_E5;
iNoteF = NOTE_F5;
iNoteFS = NOTE_FS5;
iNoteG = NOTE_G5;
iNoteGS = NOTE_GS5;
break;
case 5:
// NOTE A5
iNoteA = NOTE_A5;
iNoteAS = NOTE_AS5;
iNoteB = NOTE_B5;
iNoteC = NOTE_C6;
iNoteCS = NOTE_CS6;
iNoteD = NOTE_D6;
iNoteDS = NOTE_DS6;
iNoteE = NOTE_E6;
iNoteF = NOTE_F6;
iNoteFS = NOTE_FS6;
iNoteG = NOTE_G6;
iNoteGS = NOTE_GS6;
break;
case 6:
// NOTE A6
iNoteA = NOTE_A6;
iNoteAS = NOTE_AS6;
iNoteB = NOTE_B6;
iNoteC = NOTE_C7;
iNoteCS = NOTE_CS7;
iNoteD = NOTE_D7;
iNoteDS = NOTE_DS7;
iNoteE = NOTE_E7;
iNoteF = NOTE_F7;
iNoteFS = NOTE_FS7;
iNoteG = NOTE_G7;
iNoteGS = NOTE_GS7;
break;
}
}
pitches.h
/***************************************************************** * Pitches NOTE_B0 <=> NOTE_DS8 - NOTE_A4 is "A" measured at 440Hz *****************************************************************/ #define NOTE_B0 31 #define NOTE_C1 33 #define NOTE_CS1 35 #define NOTE_D1 37 #define NOTE_DS1 39 #define NOTE_E1 41 #define NOTE_F1 44 #define NOTE_FS1 46 #define NOTE_G1 49 #define NOTE_GS1 52 #define NOTE_A1 55 #define NOTE_AS1 58 #define NOTE_B1 62 #define NOTE_C2 65 #define NOTE_CS2 69 #define NOTE_D2 73 #define NOTE_DS2 78 #define NOTE_E2 82 #define NOTE_F2 87 #define NOTE_FS2 93 #define NOTE_G2 98 #define NOTE_GS2 104 #define NOTE_A2 110 #define NOTE_AS2 117 #define NOTE_B2 123 #define NOTE_C3 131 #define NOTE_CS3 139 #define NOTE_D3 147 #define NOTE_DS3 156 #define NOTE_E3 165 #define NOTE_F3 175 #define NOTE_FS3 185 #define NOTE_G3 196 #define NOTE_GS3 208 #define NOTE_A3 220 #define NOTE_AS3 233 #define NOTE_B3 247 #define NOTE_C4 262 #define NOTE_CS4 277 #define NOTE_D4 294 #define NOTE_DS4 311 #define NOTE_E4 330 #define NOTE_F4 349 #define NOTE_FS4 370 #define NOTE_G4 392 #define NOTE_GS4 415 #define NOTE_A4 440 #define NOTE_AS4 466 #define NOTE_B4 494 #define NOTE_C5 523 #define NOTE_CS5 554 #define NOTE_D5 587 #define NOTE_DS5 622 #define NOTE_E5 659 #define NOTE_F5 698 #define NOTE_FS5 740 #define NOTE_G5 784 #define NOTE_GS5 831 #define NOTE_A5 880 #define NOTE_AS5 932 #define NOTE_B5 988 #define NOTE_C6 1047 #define NOTE_CS6 1109 #define NOTE_D6 1175 #define NOTE_DS6 1245 #define NOTE_E6 1319 #define NOTE_F6 1397 #define NOTE_FS6 1480 #define NOTE_G6 1568 #define NOTE_GS6 1661 #define NOTE_A6 1760 #define NOTE_AS6 1865 #define NOTE_B6 1976 #define NOTE_C7 2093 #define NOTE_CS7 2217 #define NOTE_D7 2349 #define NOTE_DS7 2489 #define NOTE_E7 2637 #define NOTE_F7 2794 #define NOTE_FS7 2960 #define NOTE_G7 3136 #define NOTE_GS7 3322 #define NOTE_A7 3520 #define NOTE_AS7 3729 #define NOTE_B7 3951 #define NOTE_C8 4186 #define NOTE_CS8 4435 #define NOTE_D8 4699 #define NOTE_DS8 4978
setup.ino
// Setup
void setup() {
// Setup Keyboard
setupKeyboard();
// Mozzi Start
startMozzi( CONTROL_RATE );
// Sets Attack and Decay Levels; assumes Sustain, Decay, and Idle times
envelope1.setADLevels(200,200);
// Sets Decay time in milliseconds
envelope1.setDecayTime(100);
// Sustain Time setting for envelope1
envelope1.setSustainTime(32500);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – Momentary Button – Mk09
——
#DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Arduino #AdafruitMETROM0Express #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
Momentary Button – Panel Mount
It’s your basic black or blue action button. This is a very useful, small, panel-mount momentary switch. It is a SPST N.O. with the threaded portion being 6.75 mm in diameter. This button is perfect for basic On/Off functions. Overall length including leads and has small solder lugs for connection. These momentary buttons are rated up to 0.5A and 250VAC.
Momentary button connect two points in a circuit when you press them. Turns on and off a light emitting LED. When the button is open there is no connection between the two legs of the button, so the pin is connected to ground, through the pull-down resistor, and we read a LOW. When the button is closed, it makes a connection between its two legs, connecting the pin to 5 volts, so that we read a HIGH.
You can also wire this circuit the opposite way, with a pullup resistor keeping the input HIGH, and going LOW when the button is pressed. If so, the behavior of the sketch will be reversed, with the LED normally on and turning off when you press the button.
DL2208Mk02
1 x Adafruit METRO M0 Express
8 x Momentary Button – Panel Mount (Blue)
5 x Momentary Button – Panel Mount (Black)
13 x 10K Ohm Resistor
1 x LED Red 5mm
1 x SparkFun Cerberus USB Cable
Adafruit METRO M0 Express
KY0 – 0
KY1 – 1
KY2 – 2
KY3 – 3
KY4 – 4
KY5 – 5
KY6 – 6
KY7 – 7
KY8 – 8
LEDR – 9
KY10 – 10
KY11 – 11
KY12 – 12
KY13 – 13
VIN – +5V
GND – GND
——
DL2208Mk02p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Momentary Button - Mk09
22-09
DL2208Mk02p.ino
1 x Adafruit METRO M0 Express
8 x Momentary Button - Panel Mount (Blue)
5 x Momentary Button - Panel Mount (Black)
13 x 1K Ohm Resistor
1 x LED Red 5mm
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Simple Keyboard
// Minimum reading of the button that generates a note
//const int iKeyboard0 = 0;
const int iKeyboard1 = 1;
const int iKeyboard2 = 2;
const int iKeyboard3 = 3;
const int iKeyboard4 = 4;
const int iKeyboard5 = 5;
const int iKeyboard6 = 6;
const int iKeyboard7 = 7;
const int iKeyboard8 = 8;
const int iKeyboard10 = 10;
const int iKeyboard11 = 11;
const int iKeyboard12 = 12;
const int iKeyboard13 = 13;
// Button is pressed
int iB0 = 1;
int iB1 = 1;
int iB2 = 1;
int iB3 = 1;
int iB4 = 1;
int iB5 = 1;
int iB6 = 1;
int iB7 = 1;
int iB8 = 1;
int iB10 = 1;
int iB11 = 1;
int iB12 = 1;
int iB13 = 1;
// The number of the LED Red pin 9
const int iLedR = 9;
// Software Version Information
String sver = "22-09";
void loop() {
// isKeyboard
isKeyboard();
}
getKeyboard.ino
// getKeyboard
// setupKeyboard
void setupKeyboard() {
// Initialize the button pin as an input
// pinMode(iKeyboard0, INPUT_PULLUP);
pinMode(iKeyboard1, INPUT_PULLUP);
pinMode(iKeyboard2, INPUT_PULLUP);
pinMode(iKeyboard3, INPUT_PULLUP);
pinMode(iKeyboard4, INPUT_PULLUP);
pinMode(iKeyboard5, INPUT_PULLUP);
pinMode(iKeyboard6, INPUT_PULLUP);
pinMode(iKeyboard7, INPUT_PULLUP);
pinMode(iKeyboard8, INPUT_PULLUP);
pinMode(iKeyboard10, INPUT_PULLUP);
pinMode(iKeyboard11, INPUT_PULLUP);
pinMode(iKeyboard12, INPUT_PULLUP);
pinMode(iKeyboard13, INPUT_PULLUP);
}
// isKeyboard
void isKeyboard() {
/*
// Read the state of the button value 0
if ( digitalRead(iKeyboard0) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 0
iB0 = iB0 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB0 = iB0 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
*/
// Read the state of the button value 1
if ( digitalRead(iKeyboard1) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 1
iB1 = iB1 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB1 = iB1 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 2
if ( digitalRead(iKeyboard2) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 2
iB2 = iB2 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB2 = iB2 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 3
if ( digitalRead(iKeyboard3) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 3
iB3 = iB3 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB3 = iB3 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 4
if ( digitalRead(iKeyboard4) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 4
iB4 = iB4 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB4 = iB4 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 5
if ( digitalRead(iKeyboard5) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 5
iB5 = iB5 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB5 = iB5 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 6
if ( digitalRead(iKeyboard6) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 6
iB6 = iB6 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB6 = iB6 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 7
if ( digitalRead(iKeyboard7) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 7
iB7 = iB7 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB7 = iB7 - 1;// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 8
if ( digitalRead(iKeyboard8) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 8
iB8 = iB8 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB8 = iB8 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 10
if ( digitalRead(iKeyboard10) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 10
iB10 = iB10 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB10 = iB10 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 11
if ( digitalRead(iKeyboard11) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 11
iB11 = iB11 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB11 = iB11 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 12
if ( digitalRead(iKeyboard12) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 12
iB12 = iB12 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB12 = iB12 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
// Read the state of the button value 13
if ( digitalRead(iKeyboard13) == HIGH ) {
// Button is pressed - pullup keeps pin high normally 13
iB13 = iB13 + 1;
// Turn LED Red on
digitalWrite(iLedR, HIGH );
}
else
{
iB13 = iB13 - 1;
// Turn LED Red off
digitalWrite(iLedR, LOW );
}
}
setup.ino
// Setup
void setup() {
// Setup Keyboard
setupKeyboard();
// Initialize the LED Red pin 9 as an output
pinMode(iLedR, OUTPUT);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – Slide Linear Taper Pot – Mk08
——
#DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Arduino #AdafruitMETROM0Express #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
10k Ohm Slide Linear Taper Pot – X-Large
A simple slide potentiometer can go a long way. Rated at 10k Ohm and 0.5W. Comes with solder tab connections. The taper profile for this slide:
Length: 80 cm
Width: 15 cm
Height: 12 cm
Slide Potentiometer Knob – X-Large
This is a simple knob that connects to the extra large sized linear slide potentiometer. Each knob uses friction to secure itself to fit onto the slide pot. Once attached, this small knob provides you with an easier to use potentiometer for your project.
Adafruit METRO M0 Express
Metro is our series of microcontroller boards for use with the Arduino IDE. This new Metro M0 Express board looks a whole lot like our original Metro 328, but with a huge upgrade. This Metro features a ATSAMD21G18 chip, an ARM Cortex M0+.
At the Metro M0’s heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and at 3.3V logic. This chip has a 256K of FLASH and 32K of RAM. This chip comes with built in USB so it has USB-to-Serial program.
DL2208Mk01
1 x Adafruit METRO M0 Express
5 x 10k Ohm Slide Linear Taper Pot – X-Large
5 x Slide Potentiometer Knob – X-Large
1 x SparkFun Cerberus USB Cable
Adafruit METRO M0 Express
LP0 – Analog A0 – Blue
LP1 – Analog A1 – Green
LP2 – Analog A2 – Grey
LP3 – Analog A3 – Yellow
LP4 – Analog A4 – Purple
VIN – +5V
GND – GND
DL2208Mk01p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Slide Linear Taper Pot - Mk08
22-08
DL2208Mk01p.ino
1 x Adafruit METRO M0 Express
5 x 10k Ohm Slide Linear Taper Pot - X-Large
5 x Slide Potentiometer Knob - X-Large
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Pot
int iPot0 = A0;
int iPot1 = A1;
int iPot2 = A2;
int iPot3 = A3;
int iPot4 = A4;
int sensorValue0 = 0;
int iValue0 = 0;
int sensorValue1 = 0;
int iValue1 = 0;
int sensorValue2 = 0;
int iValue2 = 0;
int sensorValue3 = 0;
int iValue3 = 0;
int sensorValue4 = 0;
int iValue4 = 0;
// Software Version Information
String sver = "22-08";
void loop() {
// Pot
isPot();
// Delay in between reads
delay( 1000 );
}
getPot.ino
// 10k Slide Linear Taper Pot - X-Large
// Pot
void isPot(){
// Read the input on analog pin 0
sensorValue0 = analogRead( iPot0 );
iValue0 = map(sensorValue0, 0, 1023, 0, 255);
Serial.print( "P0: " );
Serial.print( iValue0 );
// Read the input on analog pin 1
sensorValue1 = analogRead( iPot1 );
iValue1 = map(sensorValue1, 0, 1023, 0, 255);
Serial.print( " P1: " );
Serial.print( iValue1 );
// Read the input on analog pin 2
sensorValue2 = analogRead( iPot2 );
iValue2 = map(sensorValue2, 0, 1023, 0, 255);
Serial.print( " P2: " );
Serial.print( iValue2 );
// Read the input on analog pin 3
sensorValue3 = analogRead( iPot3 );
iValue3 = map(sensorValue3, 0, 1023, 0, 255);
Serial.print( " P3: " );
Serial.print( iValue3 );
// Read the input on analog pin 4
sensorValue4 = analogRead( iPot4 );
iValue4 = map(sensorValue4, 0, 1023, 0, 255);
Serial.print( " P4: " );
Serial.println( iValue4 );
}
setup.ino
// Setup
void setup() {
// Initialize serial communication at 9600 bits per second
Serial.begin(9600);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – Volume Sound – Mk07
——
DonLucElectronics #DonLuc #Synthesizer #UltrasonicSynth #Mozzi #Arduino #ArduinoProMini #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
Volume Sound
Volume the degree of loudness or the intensity of a sound. The volume of a sound is how loud or quiet the sound is. Sounds are vibrations that travel through the air. Volume, or loudness, is related to the strength, intensity, pressure, or power of the sound. Amplified vibrations result in louder sounds. There are a few ways of varying the volume.
I am using the Mozzi audio library to implement a simple synthesizer and using a potentiometer to control the amplitude of a sinewave with Mozzi sonification library. To convey the volume level. Volume it to an 8 bit range for efficient calculations.
DL2207Mk04
1 x Arduino Pro Mini 328 – 5V/16MHz
2 x HC-SR04 Ultrasonic Sensor
3 x 1M Ohm Potentiometer
3 x Knob
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun USB Mini-B Breakout
1 x SPDT Slide Switch
1 x JST Jumper 2 Wire Connector
1 x JST Jumper 3 Wire Connector
1 x Insignia Speakers
1 x SparkFun Solderable Breadboard – Large
1 x SparkFun FTDI Basic Breakout – 5V
1 x SparkFun Cerberus USB Cable
Arduino Pro Mini 328 – 5V/16MHz
Ech – Digital 13
Tri – Digital 12
EcR – Digital 11
TrR – Digital 10
SPK – Digital 9
CAP – Analog A0
CAH – Analog A1
CAV – Analog A2
VIN – +5V
GND – GND
——
DL2207Mk04p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Volume - Mk07
22-07
DL2207Mk04p.ino
1 x Arduino Pro Mini 328 - 5V/16MHz
2 x HC-SR04 Ultrasonic Sensor
3 x 1M Ohm Potentiometer
3 x Knob
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun USB Mini-B Breakout
1 x SPDT Slide Switch
1 x JST Jumper 2 Wire Connector
1 x JST Jumper 3 Wire Connector
1 x Insignia Speakers
1 x SparkFun Solderable Breadboard - Large
1 x SparkFun FTDI Basic Breakout - 5V
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Table for Oscils to play
#include <tables/cos2048_int8.h>
// Smoothing Control
#include <Smooth.h>
// Maps unpredictable inputs to a range
#include <AutoMap.h>
// Desired carrier frequency max and min, for AutoMap
const int MIN_CARRIER_FREQ = 22;
const int MAX_CARRIER_FREQ = 440;
// Desired intensity max and min, for AutoMap, note they're inverted for reverse dynamics
const int MIN_INTENSITY = 700;
const int MAX_INTENSITY = 10;
// Desired mod speed max and min, for AutoMap, note they're inverted for reverse dynamics
const int MIN_MOD_SPEED = 10000;
const int MAX_MOD_SPEED = 1;
// Maps unpredictable inputs to a range
AutoMap kMapCarrierFreq(0,1023,MIN_CARRIER_FREQ,MAX_CARRIER_FREQ);
AutoMap kMapIntensity(0,1023,MIN_INTENSITY,MAX_INTENSITY);
AutoMap kMapModSpeed(0,1023,MIN_MOD_SPEED,MAX_MOD_SPEED);
// Set the input for the knob to analog pin 0
const int KNOB_PIN = A0;
// Set the analog input for fm_intensity
int LDR1_PIN;
// Set the analog input for mod rate
int LDR2_PIN;
// Table for Oscils to play
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aCarrier(COS2048_DATA);
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aModulator(COS2048_DATA);
Oscil<COS2048_NUM_CELLS, CONTROL_RATE> kIntensityMod(COS2048_DATA);
// Harmonics (Brightness)
int iModRatio = A1;
int mod_ratio;
// Carries control info from updateControl to updateAudio
long fm_intensity;
// Smoothing for intensity to remove clicks on transitions
float smoothness = 0.95f;
Smooth <long> aSmoothIntensity(smoothness);
// Trigger pin 12 to pitch distance sensor
const int iTrigPitch = 12;
// Echo Receive pin 13 to pitch distance sensor
const int iEchoPitch = 13;
// Define the useable range of the pitch sensor
const int pitchLowThreshold = 45;
const int pitchHighThreshold = 2;
// Stores the distance measured by the distance sensor
float distance = 0;
// Trigger pin 10 to rate distance sensor
const int iTrigRate = 10;
// Echo Receive pin 13 to pitch distance sensor
const int iEchoRate = 11;
// Define the useable range of the pitch sensor
const int rateLowThreshold = 45;
const int rateHighThreshold = 2;
// Stores the distance measured by the distance sensor
float rate = 0;
// Volume
// Set the input for the knob to analog pin 2
const int iVolKnob = A2;
// To convey the Volume level from updateControl() to updateAudio()
byte bVolume;
// Mini Speaker
int SPK = 9;
// Software Version Information
String sver = "22-07";
void loop() {
// Audio Hook
audioHook();
}
getHC-SR04.ino
// HC-SR04 Ultrasonic Sensor
// Setup HC-SR04
void setupHCSR04() {
// The trigger iTrig Pitch will output pulses of electricity
pinMode(iTrigPitch, OUTPUT);
// The echo iEcho will measure the duration of pulses coming back from the distance sensor
pinMode(iEchoPitch, INPUT);
// The trigger iTrig Rate will output pulses of electricity
pinMode(iTrigRate, OUTPUT);
// The echo iEcho will measure the duration of pulses coming back from the distance sensor
pinMode(iEchoRate, INPUT);
}
// Distance
float isDistance() {
// Variable to store the time it takes for a ping to bounce off an object
float echoTime;
// Variable to store the distance calculated from the echo time
float calculatedDistance;
// Send out an ultrasonic pulse that's 10ms long
digitalWrite(iTrigPitch, HIGH);
delayMicroseconds(10);
digitalWrite(iTrigPitch, LOW);
// Use the pulseIn command to see how long it takes for the
// pulse to bounce back to the sensor
echoTime = pulseIn(iEchoPitch, HIGH);
// Calculate the distance of the object that reflected the pulse
// (half the bounce time multiplied by the speed of sound)
calculatedDistance = echoTime * 0.034 / 2;
// Send back the distance that was calculated
return calculatedDistance;
}
// Rate
float isRate() {
// Variable to store the time it takes for a ping to bounce off an object
float echoTime;
// Variable to store the distance calculated from the echo time
float calculatedDistance;
// Send out an ultrasonic pulse that's 10ms long
digitalWrite(iTrigRate, HIGH);
delayMicroseconds(10);
digitalWrite(iTrigRate, LOW);
// Use the pulseIn command to see how long it takes for the
// pulse to bounce back to the sensor
echoTime = pulseIn(iEchoRate, HIGH);
// Calculate the distance of the object that reflected the pulse
// (half the bounce time multiplied by the speed of sound)
// cm = 58.0
calculatedDistance = echoTime * 0.034 / 2;
// Send back the distance that was calculated
return calculatedDistance;
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Variable to store the distance measured by the sensor
distance = isDistance();
// Low Threshold
if ( distance >= pitchLowThreshold) {
// pitchLowThreshold
distance = pitchLowThreshold;
}
// High Threshold
if ( distance < pitchHighThreshold){
// pitchHighThreshold
distance = pitchHighThreshold;
}
// Variable to store the distance measured by the sensor
rate = isRate();
// Low Threshold
if ( rate >= rateLowThreshold) {
// rateLowThreshold
rate = rateLowThreshold;
}
// High Threshold
if ( rate < rateHighThreshold){
// rateHighThreshold
rate = rateHighThreshold;
}
// Map
distance = map(distance, 45, 2, 0, 1023);
rate = map(rate, 45, 2, 0, 1023);
// Read the knob
// Value is 0-1023
int knob_value = mozziAnalogRead(KNOB_PIN);
// Read the mod_ratio
// Value is 0-1023
mod_ratio = mozziAnalogRead(iModRatio);
// Map
mod_ratio = map(mod_ratio, 0, 1023, 2, 15);
// Map the knob to carrier frequency
int carrier_freq = kMapCarrierFreq(knob_value);
// Calculate the modulation frequency to stay in ratio
int mod_freq = carrier_freq * mod_ratio;
// Set the FM oscillator frequencies
aCarrier.setFreq(carrier_freq);
aModulator.setFreq(mod_freq);
// Read the light dependent resistor on the width
LDR1_PIN = distance;
int LDR1_value = LDR1_PIN;
int LDR1_calibrated = kMapIntensity(LDR1_value);
// Calculate the fm_intensity
// Shift back to range after 8 bit multiply
fm_intensity = ((long)LDR1_calibrated * (kIntensityMod.next()+128))>>8;
// Read the light dependent resistor on the speed
LDR2_PIN = rate;
int LDR2_value= LDR2_PIN;
// Use a float here for low frequencies
float mod_speed = (float)kMapModSpeed(LDR2_value)/1000;
kIntensityMod.setFreq(mod_speed);
// Read the variable resistor for volume
// Value is 0-1023
int iVolValue = mozziAnalogRead(iVolKnob);
// map it to an 8 bit range for efficient calculations in updateAudio
bVolume = map(iVolValue, 0, 1023, 155, 1);
}
// Update Audio
int updateAudio()
{
// Update Audio
long modulation = aSmoothIntensity.next(fm_intensity) * aModulator.next() * bVolume;
return aCarrier.phMod(modulation);
}
setup.ino
// Setup
void setup() {
// Setup HC-SR04
setupHCSR04();
// Delay
delay( 200 );
// Mozzi Start
startMozzi();
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – Envelope – Mk06
——
#DonLucElectronics #DonLuc #Synthesizer #Mozzi #Keyboard #ADSREnvelope #Arduino #ArduinoProMini #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
Envelope (Music)
In sound and music, an envelope describes how a sound changes over time. It may relate to elements such as amplitude (Volume), frequencies (with the use of filters) or pitch. For example, a piano key, when struck and held, creates a near-immediate initial sound which gradually decreases in volume to zero.
Envelope generators, which allow users to control the different stages of a sound, are common features of synthesizers, samplers, and other electronic musical instruments. The most common form of envelope generator is controlled with four parameters: attack, decay, sustain and release (ADSR).
A Simple ADSR Envelope Generator
This implementation has separate update() and next() methods, where next() interpolates values between each update(). The “normal” way to use this would be with update() in updateControl(), where it calculates a new internal state each control step, and then next() is in updateAudio(), called much more often, where it interpolates between the control values. This also allows the ADSR updates to be made even more sparsely if desired, eg. every 3rd control update.
noteOn()
Start the attack phase of the ADSR. This will restart the ADSR no matter what phase it is up to. True, the envelope will start from 0, even if it is still playing, often useful for effect envelopes. If false, the envelope will start rising from the current level, which could be non-zero, if it is still playing, most useful for note envelopes.
DL2207Mk01
1 x Arduino Pro Mini 328 – 5V/16MHz
8 x Tactile Button
3 x 1K Ohm Potentiometer
3 x Knob
1 x JST Jumper 3 Wire Connector
1 x Solderable Breadboard
1 x SparkFun FTDI Basic Breakout – 5V
1 x SparkFun Cerberus USB Cable
Arduino Pro Mini 328 – 5V/16MHz
KY2 – Digital 2
KY3 – Digital 3
KY4 – Digital 4
KY5 – Digital 5
KY6 – Digital 6
KY7 – Digital 7
KY8 – Digital 8
SPK – Digital 9
KY9 – Digital 10
PFR – Analog A3
CDE – Analog A2
CAT – Analog A1
VIN – +5V
GND – GND
DL2207Mk01p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Envelope - Mk06
22-06
DL2207Mk01p.ino
1 x Arduino Pro Mini 328 - 5V/16MHz
8 x Tactile Button
3 x 1K Ohm Potentiometer
3 x Knob
4 x SPDT Slide Switch
1 x JST Jumper 3 Wire
1 x Insignia Speakers
1 x Solderable Breadboard
1 x SparkFun FTDI Basic Breakout - 5V
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Pitches
#include "pitches.h"
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Table for Oscils to play
#include <tables/sin2048_int8.h>
// ADSR envelope generator
#include <ADSR.h>
// Simple Keyboard
// Minimum reading of the button that generates a note
const int iKeyboard2 = 2;
const int iKeyboard3 = 3;
const int iKeyboard4 = 4;
const int iKeyboard5 = 5;
const int iKeyboard6 = 6;
const int iKeyboard7 = 7;
const int iKeyboard8 = 8;
const int iKeyboard9 = 10;
// Button is pressed
int aa = 1;
int bb = 1;
int cc = 1;
int dd = 1;
int ee = 1;
int ff = 1;
int gg = 1;
int hh = 1;
//Oscillator Functions declared for output envelope 1
// Sine Wave
Oscil <2048, AUDIO_RATE> aSin1(SIN2048_DATA);
// ADSR declaration/definition
// Comment out to use control rate of 128
#define CONTROL_RATE 128
ADSR <CONTROL_RATE, CONTROL_RATE> envelope1;
// Set the input for the potentiometer Attack to analog pin 1
const int potAttack = A1;
// Attack
int attack_level = 0;
int iAttack = 0;
// Set the input for the potentiometer for Decay to analog pin 2
const int potDecay = A2;
// Decay
int decay_level = 0;
int iDecay = 0;
// Set the input for the potentiometer for Frequency to analog pin 3
const int potFreq = A3;
int iFreg = 1;
int iNoteA = 0;
int iNoteB = 0;
int iNoteC = 0;
int iNoteD = 0;
int iNoteE = 0;
int iNoteF = 0;
int iNoteG = 0;
int iNoteAA = 0;
// Software Version Information
String sver = "22-06";
void loop() {
// Audio Hook
audioHook();
}
getKeyboard.ino
// getKeyboard
// setupKeyboard
void setupKeyboard() {
// Initialize the pushbutton pin as an input
pinMode(iKeyboard2, INPUT_PULLUP);
pinMode(iKeyboard3, INPUT_PULLUP);
pinMode(iKeyboard4, INPUT_PULLUP);
pinMode(iKeyboard5, INPUT_PULLUP);
pinMode(iKeyboard6, INPUT_PULLUP);
pinMode(iKeyboard7, INPUT_PULLUP);
pinMode(iKeyboard8, INPUT_PULLUP);
pinMode(iKeyboard9, INPUT_PULLUP);
}
// isKeyboard
void isKeyboard() {
// Choose envelope levels
// attack_level
iAttack = mozziAnalogRead( potAttack );
attack_level = map( iAttack, 0, 1023, 0, 255);
// decay_level
iDecay = mozziAnalogRead( potDecay );
decay_level = map( iDecay, 0, 1023, 0, 255);
// set AD Levels
envelope1.setADLevels(attack_level,decay_level);
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard2) == LOW ) {
// Button is pressed - pullup keeps pin high normally
aa = aa + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteA);
}
else
{
aa = aa - 1;
}
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard3) == LOW ) {
// Button is pressed - pullup keeps pin high normally
bb = bb + 1;
// Waveform
envelope1.noteOn();
aSin1.setFreq(iNoteB);
}
else
{
bb = bb - 1;
}
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard4) == LOW ) {
// Button is pressed - pullup keeps pin high normally
cc = cc + 1;
// Waveform
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteC);
}
else
{
cc = cc - 1;
}
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard5) == LOW ) {
// Button is pressed - pullup keeps pin high normally
dd = dd + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteD);
}
else
{
dd = dd - 1;
}
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard6) == LOW ) {
// Button is pressed - pullup keeps pin high normally
ee = ee + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteE);
}
else
{
ee = ee - 1;
}
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard7) == LOW ) {
// Button is pressed - pullup keeps pin high normally
ff = ff + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteF);
}
else
{
ff = ff - 1;
}
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard8) == LOW ) {
// Button is pressed - pullup keeps pin high normally
gg = gg + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteG);
}
else
{
gg = gg - 1;
}
// Read the state of the pushbutton value
if ( digitalRead(iKeyboard9) == LOW ) {
// Button is pressed - pullup keeps pin high normally
hh = hh + 1;
// ADSR declaration/definition
envelope1.noteOn();
aSin1.setFreq(iNoteAA);
}
else
{
hh = hh - 1;
}
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Frequency
isPitches();
// Keyboard
isKeyboard();
}
// Update Audio
int updateAudio()
{
// Update Audio
// ADSR declaration/definition
envelope1.update();
// >>8 for AUDIO_MODE STANDARD
return (int) (envelope1.next() * aSin1.next())>>8;
}
getPitches.ino
// Pitches
// isPitches
void isPitches(){
// Frequency
// Value is 0-1023
iFreg = mozziAnalogRead(potFreq);
iFreg = map(iFreg, 0, 1023, 3, 6);
// Range Frequency Note Low => High
switch ( iFreg ) {
case 1:
// NOTE A1
iNoteA = NOTE_A1;
iNoteB = NOTE_B1;
iNoteC = NOTE_C2;
iNoteD = NOTE_D2;
iNoteE = NOTE_E2;
iNoteF = NOTE_F2;
iNoteG = NOTE_G2;
iNoteAA = NOTE_A2;
break;
case 2:
// NOTE A2
iNoteA = NOTE_A2;
iNoteB = NOTE_B2;
iNoteC = NOTE_C3;
iNoteD = NOTE_D3;
iNoteE = NOTE_E3;
iNoteF = NOTE_F3;
iNoteG = NOTE_G3;
iNoteAA = NOTE_A3;
break;
case 3:
// NOTE A3
iNoteA = NOTE_A3;
iNoteB = NOTE_B3;
iNoteC = NOTE_C4;
iNoteD = NOTE_D4;
iNoteE = NOTE_E4;
iNoteF = NOTE_F4;
iNoteG = NOTE_G4;
iNoteAA = NOTE_A4;
break;
case 4:
// NOTE A4
iNoteA = NOTE_A4;
iNoteB = NOTE_B4;
iNoteC = NOTE_C5;
iNoteD = NOTE_D5;
iNoteE = NOTE_E5;
iNoteF = NOTE_F5;
iNoteG = NOTE_G5;
iNoteAA = NOTE_A5;
break;
case 5:
// NOTE A5
iNoteA = NOTE_A5;
iNoteB = NOTE_B5;
iNoteC = NOTE_C6;
iNoteD = NOTE_D6;
iNoteE = NOTE_E6;
iNoteF = NOTE_F6;
iNoteG = NOTE_G6;
iNoteAA = NOTE_A6;
break;
case 6:
// NOTE A6
iNoteA = NOTE_A6;
iNoteB = NOTE_B6;
iNoteC = NOTE_C7;
iNoteD = NOTE_D7;
iNoteE = NOTE_E7;
iNoteF = NOTE_F7;
iNoteG = NOTE_G7;
iNoteAA = NOTE_A7;
break;
}
}
pitches.h
/***************************************************************** * Pitches NOTE_B0 <=> NOTE_DS8 - NOTE_A4 is "A" measured at 440Hz *****************************************************************/ #define NOTE_B0 31 #define NOTE_C1 33 #define NOTE_CS1 35 #define NOTE_D1 37 #define NOTE_DS1 39 #define NOTE_E1 41 #define NOTE_F1 44 #define NOTE_FS1 46 #define NOTE_G1 49 #define NOTE_GS1 52 #define NOTE_A1 55 #define NOTE_AS1 58 #define NOTE_B1 62 #define NOTE_C2 65 #define NOTE_CS2 69 #define NOTE_D2 73 #define NOTE_DS2 78 #define NOTE_E2 82 #define NOTE_F2 87 #define NOTE_FS2 93 #define NOTE_G2 98 #define NOTE_GS2 104 #define NOTE_A2 110 #define NOTE_AS2 117 #define NOTE_B2 123 #define NOTE_C3 131 #define NOTE_CS3 139 #define NOTE_D3 147 #define NOTE_DS3 156 #define NOTE_E3 165 #define NOTE_F3 175 #define NOTE_FS3 185 #define NOTE_G3 196 #define NOTE_GS3 208 #define NOTE_A3 220 #define NOTE_AS3 233 #define NOTE_B3 247 #define NOTE_C4 262 #define NOTE_CS4 277 #define NOTE_D4 294 #define NOTE_DS4 311 #define NOTE_E4 330 #define NOTE_F4 349 #define NOTE_FS4 370 #define NOTE_G4 392 #define NOTE_GS4 415 #define NOTE_A4 440 #define NOTE_AS4 466 #define NOTE_B4 494 #define NOTE_C5 523 #define NOTE_CS5 554 #define NOTE_D5 587 #define NOTE_DS5 622 #define NOTE_E5 659 #define NOTE_F5 698 #define NOTE_FS5 740 #define NOTE_G5 784 #define NOTE_GS5 831 #define NOTE_A5 880 #define NOTE_AS5 932 #define NOTE_B5 988 #define NOTE_C6 1047 #define NOTE_CS6 1109 #define NOTE_D6 1175 #define NOTE_DS6 1245 #define NOTE_E6 1319 #define NOTE_F6 1397 #define NOTE_FS6 1480 #define NOTE_G6 1568 #define NOTE_GS6 1661 #define NOTE_A6 1760 #define NOTE_AS6 1865 #define NOTE_B6 1976 #define NOTE_C7 2093 #define NOTE_CS7 2217 #define NOTE_D7 2349 #define NOTE_DS7 2489 #define NOTE_E7 2637 #define NOTE_F7 2794 #define NOTE_FS7 2960 #define NOTE_G7 3136 #define NOTE_GS7 3322 #define NOTE_A7 3520 #define NOTE_AS7 3729 #define NOTE_B7 3951 #define NOTE_C8 4186 #define NOTE_CS8 4435 #define NOTE_D8 4699 #define NOTE_DS8 4978
setup.ino
// Setup
void setup() {
// Setup Keyboard
setupKeyboard();
// Mozzi Start
startMozzi( CONTROL_RATE );
// Sets Attack and Decay Levels; assumes Sustain, Decay, and Idle times
envelope1.setADLevels(200,200);
// Sets Decay time in milliseconds
envelope1.setDecayTime(100);
// Sustain Time setting for envelope1
envelope1.setSustainTime(32500);
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc
Project #22: Synthesizer – Harmonics – Mk05
——
#DonLucElectronics #DonLuc #Synthesizer #UltrasonicSynth #Mozzi #Arduino #ArduinoProMini #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant
——
——
——
——
Harmonics – Brightness
Nearly all signals contain energy at harmonic frequencies, in addition to the energy at the fundamental frequency. If it contains all the energy in a signal at the fundamental frequency, then that signal is a perfect sine wave. If the signal is not a perfect sine wave, then some energy is contained in the harmonics. Some waveforms contain large amounts of energy at harmonic frequencies.
Ratio
So in the harmonic series, we have a fundamental (pitch/note) and a succession of harmonics that stem from the fundamental which also hold other pitches within themselves.
Arduino – Map
map(value, fromLow, fromHigh, toLow, toHigh)
Re-maps a number from one range to another. That is, a value of fromLow would get mapped to toLow, a value of fromHigh to toHigh, values in-between to values in-between, etc…
DL2206Mk03
1 x Arduino Pro Mini 328 – 5V/16MHz
2 x HC-SR04 Ultrasonic Sensor
2 x 1M Ohm Potentiometer
2 x Knob
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun USB Mini-B Breakout
1 x SPDT Slide Switch
1 x JST Jumper 2 Wire Connector
1 x JST Jumper 3 Wire Connector
1 x Insignia Speakers
1 x SparkFun Solderable Breadboard – Large
1 x SparkFun FTDI Basic Breakout – 5V
1 x SparkFun Cerberus USB Cable
Arduino Pro Mini 328 – 5V/16MHz
Ech – Digital 13
Tri – Digital 12
EcR – Digital 11
TrR – Digital 10
SPK – Digital 9
CAP – Analog A0
CAH – Analog A1
VIN – +5V
GND – GND
——
DL2206Mk03p.ino
/* ***** Don Luc Electronics © *****
Software Version Information
Project #22: Synthesizer - Harmonics - Mk05
22-05
DL2206Mk03p.ino
1 x Arduino Pro Mini 328 - 5V/16MHz
2 x HC-SR04 Ultrasonic Sensor
2 x 1M Ohm Potentiometer
2 x Knob
1 x Audio Jack 3.5mm
1 x SparkFun Audio Jack Breakout
1 x SparkFun USB Mini-B Breakout
1 x SPDT Slide Switch
1 x JST Jumper 2 Wire Connector
1 x JST Jumper 3 Wire Connector
1 x Insignia Speakers
1 x SparkFun Solderable Breadboard - Large
1 x SparkFun FTDI Basic Breakout - 5V
1 x SparkFun Cerberus USB Cable
*/
// Include the Library Code
// Mozzi
#include <MozziGuts.h>
// Oscillator
#include <Oscil.h>
// Table for Oscils to play
#include <tables/cos2048_int8.h>
// Smoothing Control
#include <Smooth.h>
// Maps unpredictable inputs to a range
#include <AutoMap.h>
// Desired carrier frequency max and min, for AutoMap
const int MIN_CARRIER_FREQ = 22;
const int MAX_CARRIER_FREQ = 440;
// Desired intensity max and min, for AutoMap, note they're inverted for reverse dynamics
const int MIN_INTENSITY = 700;
const int MAX_INTENSITY = 10;
// Desired mod speed max and min, for AutoMap, note they're inverted for reverse dynamics
const int MIN_MOD_SPEED = 10000;
const int MAX_MOD_SPEED = 1;
// Maps unpredictable inputs to a range
AutoMap kMapCarrierFreq(0,1023,MIN_CARRIER_FREQ,MAX_CARRIER_FREQ);
AutoMap kMapIntensity(0,1023,MIN_INTENSITY,MAX_INTENSITY);
AutoMap kMapModSpeed(0,1023,MIN_MOD_SPEED,MAX_MOD_SPEED);
// Set the input for the knob to analog pin 0
const int KNOB_PIN = A0;
// Set the analog input for fm_intensity
int LDR1_PIN;
// Set the analog input for mod rate
int LDR2_PIN;
// Table for Oscils to play
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aCarrier(COS2048_DATA);
Oscil<COS2048_NUM_CELLS, AUDIO_RATE> aModulator(COS2048_DATA);
Oscil<COS2048_NUM_CELLS, CONTROL_RATE> kIntensityMod(COS2048_DATA);
// Harmonics (Brightness)
int iModRatio = A1;
int mod_ratio;
// Carries control info from updateControl to updateAudio
long fm_intensity;
// Smoothing for intensity to remove clicks on transitions
float smoothness = 0.95f;
Smooth <long> aSmoothIntensity(smoothness);
// Trigger pin 12 to pitch distance sensor
const int iTrigPitch = 12;
// Echo Receive pin 13 to pitch distance sensor
const int iEchoPitch = 13;
// Define the useable range of the pitch sensor
const int pitchLowThreshold = 45;
const int pitchHighThreshold = 2;
// Stores the distance measured by the distance sensor
float distance = 0;
// Trigger pin 10 to rate distance sensor
const int iTrigRate = 10;
// Echo Receive pin 13 to pitch distance sensor
const int iEchoRate = 11;
// Define the useable range of the pitch sensor
const int rateLowThreshold = 45;
const int rateHighThreshold = 2;
// Stores the distance measured by the distance sensor
float rate = 0;
// Mini Speaker
int SPK = 9;
// Software Version Information
String sver = "22-05";
void loop() {
// Audio Hook
audioHook();
}
getHC-SR04.ino
// HC-SR04 Ultrasonic Sensor
// Setup HC-SR04
void setupHCSR04() {
// The trigger iTrig Pitch will output pulses of electricity
pinMode(iTrigPitch, OUTPUT);
// The echo iEcho will measure the duration of pulses coming back from the distance sensor
pinMode(iEchoPitch, INPUT);
// The trigger iTrig Rate will output pulses of electricity
pinMode(iTrigRate, OUTPUT);
// The echo iEcho will measure the duration of pulses coming back from the distance sensor
pinMode(iEchoRate, INPUT);
}
// Distance
float isDistance() {
// Variable to store the time it takes for a ping to bounce off an object
float echoTime;
// Variable to store the distance calculated from the echo time
float calculatedDistance;
// Send out an ultrasonic pulse that's 10ms long
digitalWrite(iTrigPitch, HIGH);
delayMicroseconds(10);
digitalWrite(iTrigPitch, LOW);
// Use the pulseIn command to see how long it takes for the
// pulse to bounce back to the sensor
echoTime = pulseIn(iEchoPitch, HIGH);
// Calculate the distance of the object that reflected the pulse
// (half the bounce time multiplied by the speed of sound)
calculatedDistance = echoTime * 0.034 / 2;
// Send back the distance that was calculated
return calculatedDistance;
}
// Rate
float isRate() {
// Variable to store the time it takes for a ping to bounce off an object
float echoTime;
// Variable to store the distance calculated from the echo time
float calculatedDistance;
// Send out an ultrasonic pulse that's 10ms long
digitalWrite(iTrigRate, HIGH);
delayMicroseconds(10);
digitalWrite(iTrigRate, LOW);
// Use the pulseIn command to see how long it takes for the
// pulse to bounce back to the sensor
echoTime = pulseIn(iEchoRate, HIGH);
// Calculate the distance of the object that reflected the pulse
// (half the bounce time multiplied by the speed of sound)
// cm = 58.0
calculatedDistance = echoTime * 0.034 / 2;
// Send back the distance that was calculated
return calculatedDistance;
}
getMozzi.ino
// Mozzi
// Update Control
void updateControl(){
// Variable to store the distance measured by the sensor
distance = isDistance();
// Low Threshold
if ( distance >= pitchLowThreshold) {
// pitchLowThreshold
distance = pitchLowThreshold;
}
// High Threshold
if ( distance < pitchHighThreshold){
// pitchHighThreshold
distance = pitchHighThreshold;
}
// Variable to store the distance measured by the sensor
rate = isRate();
// Low Threshold
if ( rate >= rateLowThreshold) {
// rateLowThreshold
rate = rateLowThreshold;
}
// High Threshold
if ( rate < rateHighThreshold){
// rateHighThreshold
rate = rateHighThreshold;
}
// Map
distance = map(distance, 45, 2, 0, 1023);
rate = map(rate, 45, 2, 0, 1023);
// Read the knob
// Value is 0-1023
int knob_value = mozziAnalogRead(KNOB_PIN);
// Read the mod_ratio
// Value is 0-1023
mod_ratio = mozziAnalogRead(iModRatio);
// Map
mod_ratio = map(mod_ratio, 0, 1023, 2, 15);
// Map the knob to carrier frequency
int carrier_freq = kMapCarrierFreq(knob_value);
// Calculate the modulation frequency to stay in ratio
int mod_freq = carrier_freq * mod_ratio;
// Set the FM oscillator frequencies
aCarrier.setFreq(carrier_freq);
aModulator.setFreq(mod_freq);
// Read the light dependent resistor on the width
LDR1_PIN = distance;
int LDR1_value = LDR1_PIN;
int LDR1_calibrated = kMapIntensity(LDR1_value);
// Calculate the fm_intensity
// Shift back to range after 8 bit multiply
fm_intensity = ((long)LDR1_calibrated * (kIntensityMod.next()+128))>>8;
// Read the light dependent resistor on the speed
LDR2_PIN = rate;
int LDR2_value= LDR2_PIN;
// Use a float here for low frequencies
float mod_speed = (float)kMapModSpeed(LDR2_value)/1000;
kIntensityMod.setFreq(mod_speed);
}
// Update Audio
int updateAudio()
{
// Update Audio
long modulation = aSmoothIntensity.next(fm_intensity) * aModulator.next();
return aCarrier.phMod(modulation);
}
setup.ino
// Setup
void setup() {
// Setup HC-SR04
setupHCSR04();
// Delay
delay( 200 );
// Mozzi Start
startMozzi();
}
——
People can contact us: https://www.donluc.com/?page_id=1927
Technology Experience
- Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
- IoT
- Robotics
- Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
- Unmanned Vehicles Terrestrial and Marine
- Research & Development (R & D)
Instructor and E-Mentor
- IoT
- PIC Microcontrollers
- Arduino
- Raspberry Pi
- Espressif
- Robotics
Follow Us
J. Luc Paquin – Curriculum Vitae – 2022 English & Español
https://www.jlpconsultants.com/luc/
Web: https://www.donluc.com/
Web: https://www.jlpconsultants.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Don Luc