// by N M D Weerasinghe SLCOTM
String msg = "";
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
Serial.println();
}
void loop() {
// put your main code here, to run repeatedly:
if(Serial.available()>0)
{
msg = Serial.readString();
Serial.println("LED1 ON : ");
Serial.println(msg.indexOf("LED1 ON"));
Serial.println("LED1 OFF : ");
Serial.println(msg.indexOf("LED1 OFF"));
}
}