~ubuntu-branches/debian/experimental/arduino/experimental

« back to all changes in this revision

Viewing changes to libraries/Wire/examples/digital_potentiometer/digital_potentiometer.pde

• browse files at revision 12
• compare with another revision
• download diff
• download tarball
• view history from revision 12

Show diffs side-by-side

added

removed

libraries/Wire/examples/digital_potentiometer/digital_potentiometer.pde

1

 

// I2C Digital Potentiometer

2

 

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

3

 

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

4

 

 

5

 

// Demonstrates use of the Wire library

6

 

// Controls AD5171 digital potentiometer via I2C/TWI

7

 

 

8

 

// Created 31 March 2006

9

 

 

10

 

// This example code is in the public domain.

11

 

 

12

 

// This example code is in the public domain.

13

 

 

14

 

 

15

 

#include <Wire.h>

16

 

 

17

 

void setup()

18

 

{

19

 

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

20

 

}

21

 

 

22

 

byte val = 0;

23

 

 

24

 

void loop()

25

 

{

26

 

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

27

 

                              // device address is specified in datasheet

28

 

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

29

 

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

30

 

  Wire.endTransmission();     // stop transmitting

31

 

 

32

 

  val++;        // increment value

33

 

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

34

 

  {

35

 

    val = 0;    // start over from lowest value

36

 

  }

37

 

  delay(500);

38

 

}

39

 

 

• Older »

Loggerhead is a web-based interface for Breezy
Version: 2.0.1