// 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_slave.h>

void setup(){
  Serial.begin(115200);         // start serial for output

  Wire.begin(4);                // join i2c bus with address #4
  Wire.onReceive(receiveEvent); // register event
}

void loop(){
  delay(100);
}

// function that executes whenever data is received from master
// this function is registered as an event, see setup()
// Note that it is not advicable to call Serial.print() from within an ISR
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
}