Arduino Controlled Bluetooth RGB Lamp

Introduction

An RGB lamp project is a fantastic introduction to Arduino and Bluetooth control, especially for beginners interested in lighting and color effects. It teaches how to handle RGB LEDs, use PWM signals for color mixing, and wirelessly change settings using an app. BluetooIno simplifies the process by letting you send commands directly from your phone without extra coding for the interface.

How it works

In this project, you use BluetooIno’s Buttons Controller or Terminal Controller to send color commands to your Arduino via the HC-05 Bluetooth module. When you press a button or type a color code, the app sends that command wirelessly. The Arduino receives it, interprets the command, and adjusts the PWM outputs to the RGB LED’s red, green, and blue pins accordingly. For example, sending the command "RED" will light the lamp in red by activating the red LED channel at full brightness.

Wiring the project

1.Connect the HC-05 module’s TX pin to Arduino RX (pin 0) and RX pin to Arduino TX (pin 1).

2.Connect the HC-05’s VCC and GND to the Arduino’s 5V and GND.

3.Connect the Red, Green, and Blue pins of the RGB LED to Arduino PWM pins 9, 10, and 11 through appropriate current-limiting resistors (220Ω recommended).

4.Connect the common cathode (or anode) of the RGB LED to GND (or 5V) depending on your LED type.

5.Make sure all grounds are connected together.

Before uploading code, check your RGB LED type (common anode or cathode) and adjust the logic accordingly.

Upload an Arduino sketch that listens for serial commands and sets PWM values for each color channel based on received commands.

Conclusion

This Bluetooth-controlled RGB lamp project offers a colorful way to explore Arduino, Bluetooth communication, and PWM control. With BluetooIno, you can customize your lighting experience effortlessly from your phone. It’s a beginner-friendly, fun project that adds style and tech to any room. Download BluetooIno and start creating your own color palette today!