Quadrotor

// I2C Digital Potentiometer

// by Nicholas Zambetti <http://www.zambetti.com>

// and Shawn Bonkowski <http://people.interaction-ivrea.it/s.bonkowski/>

// Demonstrates use of the Wire library

// Controls AD5171 digital potentiometer via I2C/TWI

// Created 31 March 2006

// This example code is in the public domain.

// This example code is in the public domain.

#include <Wire.h>

void setup()

{

  Wire.begin(); // join i2c bus (address optional for master)

}

byte val = 0;

void loop()

{

  Wire.beginTransmission(44); // transmit to device #44 (0x2c)

                              // device address is specified in datasheet

  Wire.write(byte(0x00));            // sends instruction byte  

  Wire.write(val);             // sends potentiometer value byte  

  Wire.endTransmission();     // stop transmitting

  val++;        // increment value

  if(val == 64) // if reached 64th position (max)

  {

    val = 0;    // start over from lowest value

  }

  delay(500);

}