i`m trying to connect my arduino to my android phone using bluetooth, using Arduino bluetooth controller app. it shows the connection but not responding to any data im sending.
note: it is connected to my computer through usb cable for power supply, I don`t have an adapter right now.
I know the problem with Tx Rx port, but if both are connected then which one get the higher priority.
plz help
this is my code
void setup(){
pinMode(13, OUTPUT);
//pinMode(val, INPUT);
Serial.begin(9600);
}
void loop(){
Serial.available();
Serial.println("working");
int var= Serial.read();
if(var=='a'){
digitalWrite(13, HIGH);
}
if(var== 's'){
digitalWrite(13, LOW);
}
//digitalWrite(9, HIGH);
}