From f0fa1fd39a6beef4e4fc4ad04b03033b8c16e4ba Mon Sep 17 00:00:00 2001 From: Cristian Maglie Date: Thu, 14 Nov 2013 19:49:10 +0100 Subject: Revert "Wire library to the 1.5 format" This reverts commit a31857688bdc270ed65307755ff3b73ef4867982. --- .../digital_potentiometer.ino | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino (limited to 'libraries/Wire/examples/digital_potentiometer') diff --git a/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino b/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino new file mode 100644 index 0000000..4d1580a --- /dev/null +++ b/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.ino @@ -0,0 +1,39 @@ +// I2C Digital Potentiometer +// by Nicholas Zambetti +// and Shawn 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 + +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); +} + -- cgit v1.2.3-18-g5258