Clap Switch Kit with Arduino Uno - Build a Sound-Activated Home Automation Switch

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine walking into a dark room and just clapping twice to turn on the light. This Clap Switch Kit turns that idea into a real, working circuit. You'll build a smart home automation module that listens for a specific double-clap pattern and toggles a lamp or LED - all while learning how to filter out noise and false triggers.

What You'll Build

A fully functional clap-activated switch. You'll wire the KY-038 sound sensor to detect sound pulses, program the Arduino Uno to recognize a double-clap pattern using debounce logic, and control a 5V relay to switch an actual lamp. By the end, you'll have a prototype ready for your bedside, study table, or a school science exhibition.

What You'll Learn

• How to use a KY-038 sound sensor to convert claps into digital signals
• Implementing debounce algorithms to ignore accidental sounds and multiple triggers
• Programming pattern recognition in Arduino to identify a double-clap sequence
• Safely controlling a 5V relay module to switch high-voltage devices like a lamp

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is perfect for CBSE Class 5-10 students working on home automation science projects, ATL Tinkering Lab young innovators prototyping voice-free controls, and curious kids aged 8-15 who want to build a real gadget they can use every day. It's also an excellent parent-child weekend project to introduce coding and circuit building together.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.