root / arduino-1.0 / libraries / Wire / examples / master_writer / master_writer.ino @ 58d82c77
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1 | 58d82c77 | Tom Mullins | // Wire Master Writer |
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2 | // by Nicholas Zambetti <http://www.zambetti.com> |
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3 | |||
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 | |||
8 | // Created 29 March 2006 |
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9 | |||
10 | // This example code is in the public domain. |
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11 | |||
12 | |||
13 | #include <Wire.h> |
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14 | |||
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 | |||
20 | byte x = 0; |
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21 | |||
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 | |||
29 | x++; |
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30 | delay(500); |
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31 | } |