Project #15: Environment – Crowtail Rotary Angle Sensor – Mk23

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Crowtail – Rotary Angle Sensor 2.0

This rotary angle sensor may also be known as potentiometer that produces analog output between 0 and 3.3-5 Volt. The angular range is 300 degrees with a linear change in value. The resistance value is 10k ohms, perfect for Arduino use. Some applications like smart light control, volume control, only you can not think of things, no impossible things.

DL2501Mk04

1 x Crowduino Uno – SD
1 x Crowtail – Base Shield
1 x Crowtail – Rotary Angle Sensor 2.0
1 x Crowtail – Moisture Sensor 2.0
1 x Crowtail – I2C LCD
1 x Crowtail – LED(Green)
1 x Crowtail – LED(Yellow)
1 x USB Battery Pack
1 x USB Mini-B Cable

Crowduino Uno – SD

SCL – A5
SDA – A4
POT – A1
ASM – A0
LEDY – 7
LEDG – 6
VIN – +5V
GND – GND

DL2501Mk04p

DL2501Mk04p.ino

/****** Don Luc Electronics © ******
Software Version Information
Project #15: Environment – Crowtail Rotary Angle Sensor – Mk23
DL2501Mk04p.ino
DL2501Mk04
1 x Crowduino Uno - SD
1 x Crowtail - Base Shield
1 x Crowtail - Rotary Angle Sensor 2.0
1 x Crowtail - Moisture Sensor 2.0
1 x Crowtail - I2C LCD
1 x Crowtail - LED(Green)
1 x Crowtail - LED(Yellow)
1 x USB Battery Pack
1 x USB Mini-B Cable
*/

// Include the Library Code
// Wire
#include <Wire.h>
// Liquid Crystal
#include "LiquidCrystal.h"

// Potentiometer
int iPotentiometer = A1;
// Change Your Threshold Here
int Threshold = 0;
int zz = 0;

// Liquid Crystal
// Connect via i2c
LiquidCrystal lcd(0);

// Crowtail Moisture Sensor
int iSoilMoisture = A0;
int iSoilMoistureVal = 0;

// LED Yellow
int iLEDYellow = 7;

// LED Green
int iLEDGreen = 6;

// Software Version Information
String sver = "15-23";

void loop() {

  // Crowtail Moisture Sensor
  isSoilMoisture();

  // Delay 1 Second
  delay( 1000 );

}

getDisplay.ino

// getDisplay
// Crowbits - OLED 128X64 UID
void isDisplayUID(){

  // Set up the LCD's number of rows and columns: 
  lcd.begin(16, 2);
  // Print a message to the LCD.
  // Cursor
  lcd.setCursor(0, 0);
  lcd.print("Don Luc Electron");
  // Cursor
  lcd.setCursor(0, 1);
  // Print a message to the LCD.
  lcd.print( sver );

}
// isDisplay Green
void isDisplayG(){

  // Print a message to the LCD
  // Clear
  lcd.clear();
  // Cursor
  lcd.setCursor(0, 0);
  lcd.print("Humid Soil");
  // Cursor
  lcd.setCursor(0, 1);
  // Print a message to the LCD
  lcd.print( iSoilMoistureVal );
  
}
// isDisplay Yellow
void isDisplayY(){

  // Print a message to the LCD
  // Clear
  lcd.clear();
  // Cursor
  lcd.setCursor(0, 0);
  lcd.print("Dry Soil");
  // Cursor
  lcd.setCursor(0, 1);
  // Print a message to the LCD
  lcd.print( iSoilMoistureVal );
  
}

getSoilMoisture.ino

// Crowtail Moisture Sensor
// Soil Moisture
void isSoilMoisture(){

  // Connect Soil Moisture Sensor to Analog 0
  // iSoilMoistureVal => 0~700 Soil Moisture
  iSoilMoistureVal = analogRead( iSoilMoisture );

  // Threshold => 200~500
  zz = analogRead( iPotentiometer );
  Threshold = map( zz, 0, 1024, 200, 500);

  // Threshold
  if (iSoilMoistureVal > Threshold) {

    // 300~700 - Humid Soil
    // LED Yellow
    digitalWrite(iLEDYellow, LOW);
    // Display Green
    isDisplayG();
    // LED Green
    digitalWrite(iLEDGreen, HIGH);
    
  }
  else {
    
    // 0-300 Dry Soil
    // LED Green
    digitalWrite(iLEDGreen, LOW);
    // Display Yellow
    isDisplayY();
    digitalWrite(iLEDYellow, HIGH);
    
  }

}

setup.ino

// Setup
void setup()
{
 
  // Delay
  delay(100);

  // Initialize the LED iLED Yellow
  pinMode(iLEDYellow, OUTPUT);

  // Initialize the LED LED Green
  pinMode(iLEDGreen, OUTPUT);

  // Display UID
  isDisplayUID();
  
  // Delay 5 Second
  delay( 5000 );

}

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