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

#define I2C_SLAVE_ADDR  0x08            // i2c slave address (8)
#define LED1_PIN         4              // ATtiny Pin 3

void setup(){
  pinMode(LED1_PIN,OUTPUT);             // for general DEBUG use
  Blink(LED1_PIN,2);                    // show it's alive
  TinyWireS.begin(I2C_SLAVE_ADDR);      // init I2C Slave mode
}


void loop(){
  byte byteRcvd = 0;
  if (TinyWireS.available()){           // got I2C input!
    byteRcvd = TinyWireS.receive();     // get the byte from master
   
    if(byteRcvd == 1){                   // add 10 to what's received
      digitalWrite(LED1_PIN,1);
    }else if(byteRcvd == 2){
      digitalWrite(LED1_PIN,0);
    }
    
  }
}

void Blink(byte led, byte times){ // poor man's display
  for (byte i=0; i< times; i++){
    digitalWrite(led,HIGH);
    delay (250);
    digitalWrite(led,LOW);
    delay (175);
  }
}