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Project 1.5.3: TURNING ON/OFF GREEN LED ON RGB

Description This project teaches how to connect and program an RGB LED so that only the green light turns on/off using an Arduino.
Use case The green light on the RGB LED can be used as an indicator for safety, permission, or normal operation, such as showing that a system is active or access is allowed.

Components (Things You will need)

LED Arduino Uno Arduino USB Cable Breadboard Jumper Wires Breadboard

Building the circuit

Things Needed:

  • Arduino Uno Board = 1
  • Arduino USB cable = 1
  • RGB= 1
  • Green jumper wires = 1
  • White jumper wires = 1

Mounting the component on the breadboard

Step 1: Insert the RGB module into the middle section of the breadboard horizontally. Make sure you identify the G pin (Green) and the – pin (GND).

NB: Take note of where each of the pins of the RGB are placed on the bread board.

LED fixed on breadboard.

WIRING THE CIRCUIT

Things Needed:

  • Green jumper wire = 1
  • white jumper wire = 1

Step 2: Connect the red jumper wire from the G pin of the RGB module to pin 6 on the Arduino UNO. Then connect the white jumper wire from the – (GND) pin of the RGB module to the GND pin on the Arduino UNO.

LED fixed on breadboard.

PROGRAMMING

Step 1: Open your Arduino IDE. See how to set up here: Getting Started.

Step 2: Type const int red = 6; as shown below in the image.

NB: Make sure you avoid errors when typing. Do not omit any character or symbol especially the bracket { } and semicolons ; and put them as you see in the image. The code that comes after the two ash backslashes “//” are called comments. They are not part of the code that will be run, they only explain the lines of code. You can avoid typing them.

LED fixed on breadboard.

Step 3: Type pinMode (green, OUTPUT); as shown below in the image.

LED fixed on breadboard.

NB: The code below sets the pin names “green” as an output pin. An output pin helps send signals from the microcontroller to other components in the circuit. The pinMode () function, helps determine and control the behavior of a specific pin on the board

Step 4: Type digitalWrite (green, HIGH); as shown below in the image.

LED fixed on breadboard.

The digitalWrite () function controls the state of the pin. The pin can either be HIGH or LOW. The HIGH state turns on the LED. As a result, the code below turns on the LED.

NB: To turn off the green light, Step 5: Type digitalWrite (green, LOW); as shown below in the image.

LED fixed on breadboard.

NB: The LOW state turns off the LED. Hence, you can include the code below in your main code if you want to turn your light off but you are not required to do so.

Step 8: Save your code. See the Getting Started section

Step 9: Select the arduino board and port See the Getting Started section:Selecting Arduino Board Type and Uploading your code.

Step 10: Upload your code. See the Getting Started section:Selecting Arduino Board Type and Uploading your code

CONCLUSION

In summary, the project centered on creating a blinking red light within an RGB configuration provides an illuminating introduction to color manipulation and electronic control. By programming the red LED component to blink, participants acquire insights into timing control, code logic, and the dynamic visual effects of a single color. This endeavor serves as a pivotal step in exploring RGB color variation, showcasing the rhythmic potential of individual color components, and sparking interest in practical applications such as decorative lighting and visual aesthetics.