i want to have the status of my pins on my android phone using bluetooth

Projects & Topics Home Automation and Networked Objects
#1

i am using arduino , android phone , and bluetooth.. i have 2 pins .. i need to turn them on or off .. but the problem is that i need to get the status first of those 2 pins . for example if pin 1 is on , so there is no need to turn it on ... i need a program that checks the status of my pins .. and when it check, it must give me a feed back on my ON and OFF pins.. please help me ..

#2

What have you tried?

#3

I think you must use digitalRead(pin) and after send this state to bluetooth with serial.

 int val = 0;     // variable to store the read value
int ledPin=13; //Indicator led. If pin 2 or 3 is HIGH red led on.
//We check the pins 2,3.....you can change it....

void setup()
{
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);      // sets the digital pin 13 as output
  pinMode(2, INPUT);      // sets the digital pin 2 as input
  pinMode(3, INPUT);      // sets the digital pin 3 as input
}

void loop(){
for(int i=2;i<4;i++){
     val = digitalRead(i);
if ( val==HIGH ) {
           Serial.print(i);//Send to bluetooth HIGH pin
           delay(100); 
           digitalWrite(ledPin,HIGH); //If pin 2 or pin 3 is HIGH the LED 13 on for 1 secs
           delay(1000);
           digitalWrite(ledPin,LOW);
      }
} else {
    digitalWrite(ledPin, LOW);  // turn LED OFF
    }
  }
}

You must see in your android screen the HIGH pins…

#4