The DIY Sound-Operated Light is a favourite science-fair project: clap your hands and the light turns on; clap again and it turns off. It’s built on a neat wooden stand and teaches how sensors turn the world into signals a circuit can use.
How it works
A small microphone on the sound-sensor module listens for a sudden loud sound. When a clap crosses a set threshold, the sensor sends a pulse to the circuit, which flips the LED between on and off. A trimmer lets you tune the sensitivity so normal noise doesn’t trigger it.
What’s in the kit
- Sound sensor module
- 5mm LED light and terminal block
- 2× AA battery holder and batteries
- Wooden base plate, support parts and jumper wires
What students learn
Sound sensing, simple digital switching and neat assembly — plus the satisfaction of a project that reacts to them. If you’d rather build the circuit yourself with an Arduino, see our clap-activated light tutorial.
Get this kit
Get the DIY Sound-Operated Light Kit at Arduino Corner with cash-on-delivery across Pakistan — or order it on WhatsApp →.