33 lines
702 B
C++
33 lines
702 B
C++
// Wire Slave Sender
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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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// Sends data as an I2C/TWI slave device
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// Refer to the "Wire Master Reader" 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(2); // join i2c bus with address #2
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Wire.onRequest(requestEvent); // register event
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}
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void loop()
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{
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delay(100);
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}
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// function that executes whenever data is requested by master
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// this function is registered as an event, see setup()
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void requestEvent()
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{
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Wire.write("hello "); // respond with message of 6 bytes
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// as expected by master
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}
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