Week 8- Journal

Software & Sites

Materials & tools

 writing the code on Arduino IDE.

Before the void setup part 

• before writing the code in the void setup part, we have to define the components and their pins on Arduino, so that when i include them in the code it's understandable for Arduino.

• The components and their pins are defined as int(integers).

• the relay was on pin 9.

• The Servo was on pin 10.

• And the Bluetooth module default number is 0.

Void setup

• In this part we are supposed to write any action that we need to be repeated only one time.

• Also we define the inputs and the outputs in this part.

• Bluetooth : input.

• Servo and relay : output.

      Void loop 

• in this part we write the action that will be repeated so many times as long as we need to.

• I used the if condition to define the buttons that will send signals to the Bluetooth module to turn on the bulb and the Servo 

Code logic: 

simply the code states that when i press 1 on the mobile Bluetooth application, this sends a signal to the Arduino that turn on the lamp and print on the serial monitor Light is on, and when i press 2 on the mobile app the lamp is turned off print on the serial monitor Light is off, and when i press on 3 the servo motor turn 90 degree and print on the serial monitor window opened, and i press on 4 the servo motor go back to 0 degree and print on the serial monitor window closed.