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libraries/Wire/examples/master_writer/master_writer.ino

 

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// Wire Master Writer

 

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

 

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// Demonstrates use of the Wire library

 

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// Writes data to an I2C/TWI slave device

 

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// Refer to the "Wire Slave Receiver" example for use with this

 

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// Created 29 March 2006

 

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// This example code is in the public domain.

 

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#include <Wire.h>

 

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void setup()

 

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{

 

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

 

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}

 

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byte x = 0;

 

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void loop()

 

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{

 

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  Wire.beginTransmission(4); // transmit to device #4

 

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  Wire.write("x is ");        // sends five bytes

 

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  Wire.write(x);              // sends one byte  

 

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  Wire.endTransmission();    // stop transmitting

 

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  x++;

 

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  delay(500);

 

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}

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