arduino bleutooth module hc-05 with led
char Incoming_value = 0;
void setup() {
Serial.begin(9600); //the bluetooth standard port of the hc-05
pinMode(13,OUTPUT);
}
void loop() {
if (Serial.available() > 0)
{
Incoming_value = Serial.read();
Serial.print(Incoming_value);
Serial.print("/n");
if (Incoming_value == '1') //if you send 0 to the HC-05, LED will be off
digitalWrite(13,HIGH);
else if(Incoming_value == '0')//if you send 0 to the HC-05, LED wil be on
digitalWrite(13,LOW);
}
}