mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-11 22:24:13 +01:00
39 lines
978 B
Plaintext
39 lines
978 B
Plaintext
// Wire Slave Receiver
|
|
// by Nicholas Zambetti <http://www.zambetti.com>
|
|
|
|
// Demonstrates use of the Wire library
|
|
// Receives data as an I2C/TWI slave device
|
|
// Refer to the "Wire Master Writer" example for use with this
|
|
|
|
// Created 29 March 2006
|
|
|
|
// This example code is in the public domain.
|
|
|
|
|
|
#include <Wire.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.read(); // receive byte as a character
|
|
Serial.print(c); // print the character
|
|
}
|
|
int x = Wire.read(); // receive byte as an integer
|
|
Serial.println(x); // print the integer
|
|
}
|