AT85 RX

#include <Manchester.h>

#define RX_PIN 0
#define RELAY_PIN 1

uint8_t data;
uint8_t id;


void setup() {
  pinMode(RELAY_PIN, OUTPUT);  
  
  man.setupReceive(RX_PIN, MAN_1200);
  man.beginReceive();
  digitalWrite(RELAY_PIN, HIGH);
  delay(10000);
  digitalWrite(RELAY_PIN, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (man.receiveComplete()) { //received something
    uint16_t m = man.getMessage();
    man.beginReceive(); //start listening for next message right after you retrieve the message
    if (man.decodeMessage(m, id, data)) { //extract id and data from message, check if checksum is correct
      if(id == (uint8_t)4) {
        digitalWrite(RELAY_PIN, HIGH);
        delay(200000);
        digitalWrite(RELAY_PIN, LOW);
      }
    }
  }
}