Week 8 - Journal

My idea of this week's assignment is a remote control of a smart home. You can easily control the lights and the ventilation of your home via an app on your mobile phone.

I connect the Bluetooth moduel with the arduino and download  Arduino Bluetooth Control on my phone to send serial data to the Arduino Bluetooth module when a button is pressed on the app.

If I press 1 the buzzer will work ,If I press 2 the red color will turn on from the RGB led ,If I press 3 the green color will turn on from the RGB led ,If I press 4 the blue color will turn on from the RGB led ,

char incomingdata = 0;

void setup() {

  Serial.begin(9600);\\star print the serial

  pinMode(13, OUTPUT);\\for the buzzer output

  pinMode(3, OUTPUT);\\pin(3 for red the RGB led output

  pinMode(4, OUTPUT);\\pin(4 for blue the RGB led output

  pinMode(5, OUTPUT); \\pin(5 for green the RGB led output

}

void loop() {

  while (Serial.available() >= 0)

  {

  incomingdata = Serial.read();

  if (incomingdata == '1')\\if we press 1 the buzzer will work and the RGB led will turn off

 {

    digitalWrite(13, HIGH);

    digitalWrite(3, LOW);

    digitalWrite(4, LOW);

    digitalWrite(5, LOW);

  } else if (incomingdata == '2') \\if we press 2 the buzzer will turn off and the RGB led red will turn on

{

     digitalWrite(13, LOW);

    digitalWrite(3, HIGH);

    digitalWrite(4, LOW);

    digitalWrite(5, LOW);

  } else if (incomingdata == '3') \\if we press 3 the buzzer will not work and the RGB led green will turn on

{

   digitalWrite(13, LOW);

    digitalWrite(3, LOW);

    digitalWrite(4, HIGH);

    digitalWrite(5, LOW);

  } else if (incomingdata == '4')\\if we press 4 the buzzer will turn off and the RGB led blue will turn on

{ {

   digitalWrite(13, LOW);

    digitalWrite(3, LOW);

    digitalWrite(4, LOW);

    digitalWrite(5, HIGH);

  }

}

}

First I defind the RGB led and the buzzer as follow:

• The Red with pin 3,anode Blue with pin 4 and anode White with pin 5.

• The buzzer will be the output with pin 13

Serial.begin(9600);\\star print the serial

  pinMode(13, OUTPUT);\\for the buzzer output

  pinMode(3, OUTPUT);\\pin(3 for red the RGB led output

  pinMode(4, OUTPUT);\\pin(4 for blue the RGB led output

  pinMode(5, OUTPUT); \\pin(5 for green the RGB led output

In the void loop ,if I press 1 from Arduino Bluetooth Control app on my mobil phone the buzzer will work and the RGB led will turn off, if we press 2 the buzzer will turn off and the RGB led red will turn on,\if we press 3 the buzzer will not work and the RGB led green will turn on,if we press 4 the buzzer will turn off and the RGB led blue will turn on.

  if (incomingdata == '1')\\if we press 1 the buzzer will work and the RGB led will turn off

 {

    digitalWrite(13, HIGH);

    digitalWrite(3, LOW);

    digitalWrite(4, LOW);

    digitalWrite(5, LOW);

  } else if (incomingdata == '2') \\if we press 2 the buzzer will turn off and the RGB led red will turn on

{

     digitalWrite(13, LOW);

    digitalWrite(3, HIGH);

    digitalWrite(4, LOW);

    digitalWrite(5, LOW);

  } else if (incomingdata == '3') \\if we press 3 the buzzer will not work and the RGB led green will turn on

{

   digitalWrite(13, LOW);

    digitalWrite(3, LOW);

    digitalWrite(4, HIGH);

    digitalWrite(5, LOW);

  } else if (incomingdata == '4')\\if we press 4 the buzzer will turn off and the RGB led blue will turn on

{ {

   digitalWrite(13, LOW);

    digitalWrite(3, LOW);

    digitalWrite(4, LOW);

    digitalWrite(5, HIGH);