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Project 1.11.1:Solar-Simulation Night/Day Light

Description This project uses an RGB LED to simulate a complete day-and-night cycle. The LED gradually changes colours to represent sunrise, daylight, sunset, and nighttime, creating a visual demonstration of how natural lighting changes throughout the day.
Use case Smart lighting systems, mood lighting, day-night simulation, STEM demonstrations of natural light cycles.

Components (Things You will need)

Arduino Uno Arduino USB Cable Breadboard Jumper Wires RGB

Mounting the component on the breadboard

Place the RGB LED on the breadboard. Connect the RGB LED: • Red pin → Pin 9 • Green pin → Pin 10 • Blue pin → Pin 11 • Common Cathode (-) → GND

inseting push button.

Step 2: After completing the wiring, connect the Arduino Uno to the computer using the USB cable.

PROGRAMMING

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

code 1.

code 2.

code 3.

Uploading the code

Step 1: Save your code. See the Getting Started section

Step 2: Select the arduino board and port See the Getting Started section:Selecting Arduino Board Type and Uploading your code.

Step 3: Upload your code. See the Getting Started section:Selecting Arduino Board Type and Uploading your code

OBERVATION

  • The RGB LED starts with a sunrise effect.
  • The colour gradually changes to bright daylight.
  • The LED transitions into sunset colours.
  • A dim blue light represents nighttime.
  • The cycle continuously repeats every 30 seconds.

CONCLUSION

This project demonstrates analog sensor reading, threshold This project demonstrates RGB LED colour mixing, PWM control, time-based automation, and natural light simulation. It provides a simple introduction to creating realistic lighting effects and understanding how colour transitions can be programmed using Arduino.