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[136] | 1 | // Wire Master Reader
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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 | // Reads data from an I2C/TWI slave device
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| 6 | // Refer to the "Wire Slave Sender" 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 | Serial.begin(9600); // start serial for output
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| 19 | }
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| 20 |
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| 21 | void loop()
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| 22 | {
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| 23 | Wire.requestFrom(2, 6); // request 6 bytes from slave device #2
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| 24 |
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| 25 | while(Wire.available()) // slave may send less than requested
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| 26 | {
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| 27 | char c = Wire.read(); // receive a byte as character
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| 28 | Serial.print(c); // print the character
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| 29 | }
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| 30 |
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| 31 | delay(500);
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| 32 | }
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