// Include the SoftwareSerial library to run serial on Attiny45
#include <SoftwareSerial.h>

// Define the RX and TX pins.
#define TX   2  // PB3, Pin 2 on attiny45 leg
#define RX   3  // PB4, Pin 3 on attiny45 leg

SoftwareSerial mySerial(RX, TX);
 
int buttonPin = PB2;   // the number of the pushbutton pin
int ledPin =  PB1;     // the number of the LED pin
int buttonState = 0; // variable for reading the pushbutton status
 
void setup() {
  // initialize serial communications at 9600 bps:
  mySerial.begin(9600);
  pinMode(buttonPin,INPUT);

  pinMode(ledPin, OUTPUT);

}
 
void loop() {
  buttonState = digitalRead(buttonPin);

  if (buttonState == 1) 
  {
    digitalWrite(ledPin, LOW);
    mySerial.write(2);
 //   mySerial.println("pressed");
      delay(50);
  } else {
        

    int buttonState = 0; 
    digitalWrite(ledPin, HIGH);
    mySerial.write(1);
   // mySerial.println("not pressed");
        delay(50);
  }
}