FirstAttempt_Slave

#include "TinyWireS.h"                  // wrapper class for I2C slave routines

#define I2C_SLAVE_ADDR  8            // i2c slave address (8) - defined in master code
#define LED_PIN         5              // ATtiny PB2- Pin8


void setup(){
  pinMode(LED_PIN,OUTPUT);             // for general DEBUG use
  digitalWrite(LED_PIN,HIGH);         //LED turns on to sayit's alive
  delay(200);
  TinyWireS.begin(I2C_SLAVE_ADDR);      // init I2C Slave mode
}


void loop(){
  byte byteRcvd = 0;
  if (TinyWireS.available()){           // TinyWireS.available() returns the number of bytes in the received buffer
    byteRcvd = TinyWireS.receive();     // TinyWireS.receive()returns the next byte in the received buffer??
    digitalWrite(LED_PIN,HIGH);         //LED turns on
    delay(200);                         //LED stays on for 200ms
    digitalWrite(LED_PIN,LOW);          //LED turns off
    delay(200);
    byteRcvd += 10;                     // add 10 to what's received
    TinyWireS.send(byteRcvd);           // send it back to master
  }
}