Arduino Light Clap Switch

Overview

This Arduino Light Clap Switch project was designed as a compact and functional wall-mounted device that allows a user to control a light with a simple clap. The system was programmed using Arduino and integrates a sound sensor to detect claps and a relay module to switch the light on or off. The enclosure was made with a slot feature at the back, allowing it to easily hang on a wall using push pins for a clean and minimal setup. This project was a hands-on exploration of electronics, programming, and practical design for everyday use.

Skills: SolidWorks, Arduino, Schematics, Electrical Wiring, C++, 3D Printing, DFM, DFMA

CAD Designing and Features

The CAD design phase of this project focused on creating a clean, functional enclosure that integrated both the electronics and the light source. A custom housing was designed for the relay and sound sensor, ensuring they were securely mounted while keeping the wiring neat and organized. The light bulb enclosure was designed to press-fit into a matching wall-mounted box, providing a seamless appearance once assembled. The wall box itself included precise cutouts that allowed it to slot directly onto standard push pins, making installation simple and tool-free while maintaining a solid fit on the wall.

3D Printing and Electronics

The CAD design phase of this project focused on creating a clean, functional enclosure that integrated both the electronics and the light source. A custom housing was designed for the relay and sound sensor, ensuring they were securely mounted while keeping the wiring neat and organized. The light bulb enclosure was designed to press-fit into a matching wall-mounted box, providing a seamless appearance once assembled. The wall box itself included precise cutouts that allowed it to slot directly onto standard push pins, making installation simple and tool-free while maintaining a solid fit on the wall.

Relay and Sensor Enclosure

The CAD design phase of this project focused on creating a clean, functional enclosure that integrated both the electronics and the light source. A custom housing was designed for the relay and sound sensor, ensuring they were securely mounted while keeping the wiring neat and organized. The light bulb enclosure was designed to press-fit into a matching wall-mounted box, providing a seamless appearance once assembled. The wall box itself included precise cutouts that allowed it to slot directly onto standard push pins, making installation simple and tool-free while maintaining a solid fit on the wall.

Wiring Diagram

The wiring diagram illustrates the complete electrical setup of the Arduino Light Clap Switch Project. The circuit connects an Arduino Uno to both a sound sensor and a relay module, allowing the system to detect a clap and toggle the light accordingly. The sound sensor sends a signal to the Arduino, which then triggers the relay to control the AC-powered light bulb. Each connection was carefully mapped to ensure proper voltage distribution and grounding, making the circuit reliable, responsive, and safe for continuous operation.

External Enclosure Assembly Coolapse.mp4

Case Assembly.mp4

Final Demonstration

The final demonstration shows the Arduino light clap switch working exactly as intended. A single clap triggers the sound sensor, which sends a signal to the Arduino to toggle the relay and turn the light on or off. The response is fast and consistent, highlighting the reliability of the wiring, programming, and enclosure design. Seeing the project come together in a fully functional setup was a rewarding conclusion to the build process.

Short Video.MP4