Project #1 – The AcceleroSynth – Mk3
1 X Arduino and Breadboard Holder
1 X Breadboard
1 X Arduino UNO Rev3
1 X Speaker
3 X Jumper Wires Premium 3″ M/M
1 X Cable
AcceleroSynthMk3.1.ino
// ***** Don Luc ***** // Software Version Information // 3.1 Melody // Which pin on the Arduino is connected pin 8? // 8-ohm speaker #define tonePIN 8 // Pitches #include "pitches.h" // Notes in the Melody: int melody[] = { NOTE_C4, NOTE_G3, NOTE_G3, NOTE_A3, NOTE_G3, 0, NOTE_B3, NOTE_C4 }; // Note Durations: 4 = quarter note, 8 = eighth note, etc.: int noteDurations[] = { 4, 8, 8, 4, 4, 4, 4, 4 }; int delayVal = 3000; // delay for 2 second void loop() { // Notes of the Melody: for (int thisNote = 0; thisNote < 8; thisNote++) { // to calculate the note duration, take one second // divided by the note type. //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc. int noteDuration = 1000 / noteDurations[thisNote]; tone(tonePIN, melody[thisNote], noteDuration); // to distinguish the notes, set a minimum time between them. // the note's duration + 30% seems to work well: int pauseBetweenNotes = noteDuration * 1.70; delay(pauseBetweenNotes); // stop the tone playing: noTone(tonePIN); } delay(delayVal); // Delay for a period of time (in milliseconds). }
pitches.h
{ /************************************************* * Public Constants *************************************************/ #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.inovoid setup() { }Don Luc
Project #1 – The AcceleroSynth – Mk2
We are finally ready for our first electronics project, The AcceleroSynth. It is an microcontroller-based (Arduino) music synth that is controller by a 3 axis analog accelerometer. It will be both a hardware and a software synth. This is the announcement for the project and in the coming days I will post the BOM (Bill of Material), schematics and Arduino code with the first assembly video. The project will first be assembled on a protoboard, then a soldered version will be built either on a perfboard or on an Arduino ProtoShield. If there is enough demand either a PCB or an Arduino Shield will be built for the project and sold here. More on that later.
Don Luc
SparkFun – SPDT Mini Power Switch
SparkFun – SPDT Slide Switch
SparkFun: COM-09609
Description: This is a simple SPDT slide switch – great for use as an ON/OFF button, or just as a general control switch. The pins are spaced by 0.1″, however they are incredibly thin making breadboard use not recommended. The switch is rated for 0.3A at 50VDC.
This switch is just a bit smaller than our popular SPDT Mini Power Switch, but uses the same pin spacing. Being smaller takes up less PCB space (good!), but it does make it a bit harder to hit and flip easily.
Don Luc
SparkFun – Mini Pushbutton Switch
SparkFun – Dual/Quad Power Amplifier – STA540
SparkFun: COM-09557
Description: The STA540 from STMicro is a 4-channel, class AB audio amplifier designed for high quality sound applications. The four independent channels makes this amplifier a great choice for a number of projects, with needs ranging from four speakers stereo (F/R) to two-speaker bridge solutions. The chip accepts a voltage supply ranging from 8 to 22VDC and has very high output power capability.
This chip comes in a staggered-lead Multiwatt-15 package. While our breakout board for the L298N isn’t designed for it specifically, it will breakout out all pins of the STA540 to a more standard single row of 0.1″ pitch headers. Also, keep an eye out for some upcoming amplifier products based on this chip!
It works great with the 6400BG Heatsink!
Features:
- High output power capability
- Standby function (CMOS compatible)
- Minimum external components count:
- no bootstrap capacitors
- no Boucherot cells
- internally fixed gain 20 dB
- No audible pop during standby operations
- Diagnostic facilities:
- clip detector
- output to GND short-circuit detector
- output to VS short-circuit detector
- soft short-circuit check at turn-on
- thermal shutdown warning
- Output AC/DC short circuit protection
- Soft short-circuit check at turn-on
- Thermal cutoff/limiter to prevent chip from overheating
Don Luc
SparkFun – Piezo Speaker – PC Mount 12mm 2.048kHz
SparkFun: COM-07950
Description: This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces.
Each speaker is PTH solderable and requires an operating voltage of 3.5-5V with a mean current of 35mA max. These speakers also have a typical sound output of 95 dBA and a coil resistance of 42 ±6.3 ohms. Many people call this a buzzer but it is not. The piezo element requires a square wave (common from most microcontrollers) to produce a tone.
Don Luc
Pololu – 2-AAA Battery Holder
Pololu: 1141
This battery holder features two 6″, 24-gauge leads that have 5 mm of insulation stripped off of the ends.
Description
This battery holder features two 6″, 24-gauge leads that have 5 mm of insulation stripped off of the ends.
Dimensions
- Size: 53 × 24 × 13 mm
- Weight: 0.15 oz
General Specifications
- Lead length: 6 in
- Cells: 2
- Cell type: AAA
Don Luc
Pololu – 2-AAA Battery Holder, Enclosed with Switch
Pololu: 1143
Enclosed battery holder for two AAA cells. This holder features a lid that slides over the batteries and snaps into place to fully enclose them. It also features a switch that lets you open and close the electrical connection between the batteries and the holder’s leads.
Description
This battery holder features two 6″, 24-gauge leads that have 5 mm of insulation stripped off of the ends.
Dimensions
- Size: 63 × 26 × 16 mm
- Weight: 0.45 oz
General Specifications
- Lead length: 6 in
- Cells: 2
- Cell type: AAA
Notes: Switch adds 2 mm to the height.
Don Luc
Adafruit – Half-Size Breadboard
Adafruit: 64
Description
This is a cute half size breadboard, good for small projects. It’s 2.2″ x 3.4″ (5.5 cm x 8.5 cm) with a standard double-strip in the middle and two power rails on both sides. You can pull the power rails off easily to make the breadboard as thin as 1.4″ (3.5cm) and stick it onto an Arduino protoshield. You can also cut these in half with a saw to create 2 tiny breadboards, or “snap” these breadboards together either way to make longer and/or wider breadboards.
Technical Details
Dimensions:
- 2.2″ x 3.4″ (5.5 cm x 8.5 cm)
- 9.7mm(0.38in) thick, including sticky foam on the bottom
- Weight: 38.9g (1.27oz)
Don Luc