#include<SoftwareSerial.h>
SoftwareSerial mySerial(2,3); //rx,tx
void setup() {
mySerial.begin(9600);
Serial.begin(9600);
pinMode(4, OUTPUT);
}
void loop() {
if(mySerial.available()>0)
{
char data=mySerial.read();
Serial.println(data);
if(data=='1'){
digitalWrite(4,HIGH);
Serial.println("LED ON");
}
else if(data=='2'){
digitalWrite(4,LOW);
Serial.println("LED OFF");
}
}
}