//node id =2
#include <SoftwareSerial.h>
#define RX   0   // connected to attiny44 pin 12
#define TX   1   // connected to attiny44 pin 13
SoftwareSerial mySerial(RX, TX);
void setup() {
  // Begin the Serial at 9600 Baud
pinMode(RX,INPUT);
pinMode(TX,OUTPUT);
pinMode(A2, OUTPUT);
mySerial.begin(9600);   // Begin the Serial at 9600 Baud
}
void loop() {
mySerial.listen();
while(mySerial.available()>0){
  char node=mySerial.read();
  if (node== '2')
  {
    digitalWrite(A2, HIGH);
    delay(1000);
    mySerial.println("node 2 received");  
  }
  else
  {digitalWrite(A2, LOW);
  delay(1000);
  mySerial.println("node 2 didn't receive");
  }
}
}