Reference for Wiring version 0024+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
| Class | Wire |
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|---|---|---|---|---|---|
| Name | onReceive() |
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| Examples | #include "TwoWire.h"
void setup()
{
Wire.begin(4); // join i2c bus with address #4
Wire.onReceive(receiveEvent); // register event
Serial.begin(9600); // start serial for output
}
void loop()
{
delay(100);
}
// function that executes whenever data is received from master
// this function is registered as an event, see setup()
void receiveEvent(int howMany)
{
while(1 < Wire.available()) // loop through all but the last
{
char c = Wire.receive(); // receive byte as a character
Serial.print(c); // print the character
}
int x = Wire.receive(); // receive byte as an integer
Serial.println(x); // print the integer
} |
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| Description | The onReceive() method set the function that executes whenever data is received as a slave device. Every time a master writes to this device the specified function is executed. | ||||
| Syntax | Wire.onReceive(function) |
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| Parameters |
|
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| Returns | None | ||||
| Usage | Application |
