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[136] | 1 | // Wire Master Writer
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| 2 | // by Nicholas Zambetti <http://www.zambetti.com>
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| 3 |
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| 4 | // Demonstrates use of the Wire library
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| 5 | // Writes data to an I2C/TWI slave device
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| 6 | // Refer to the "Wire Slave Receiver" example for use with this
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| 7 |
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| 8 | // Created 29 March 2006
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| 9 |
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| 10 | // This example code is in the public domain.
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| 11 |
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| 12 |
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| 13 | #include <Wire.h>
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| 14 |
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| 15 | void setup()
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| 16 | {
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| 17 | Wire.begin(); // join i2c bus (address optional for master)
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| 18 | }
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| 19 |
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| 20 | byte x = 0;
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| 21 |
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| 22 | void loop()
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| 23 | {
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| 24 | Wire.beginTransmission(4); // transmit to device #4
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| 25 | Wire.write("x is "); // sends five bytes
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| 26 | Wire.write(x); // sends one byte
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| 27 | Wire.endTransmission(); // stop transmitting
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| 28 |
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| 29 | x++;
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| 30 | delay(500);
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| 31 | }
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