#include <TinyWireS.h>

#define output (3)
#define ATTINY45_SLAVE_A 0x27


void setup() {
  // put your setup code here, to run once:
TinyWireS.begin(ATTINY45_SLAVE_A);
pinMode(output, OUTPUT);
}

volatile byte star = 0;

void loop() {
  // put your main code here, to run repeatedly:
if (TinyWireS.available())
star = TinyWireS.receive();

if (star == 1){
digitalWrite (output, HIGH);
delay (1000);
digitalWrite (output, LOW);
delay (1000); }

else { 
digitalWrite (output, LOW);
}
}