Smart Soap Dispenser Kit — Build a Touchless Automatic Soap Dispenser with Arduino Uno

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 waving your hand under a nozzle and getting the perfect dose of soap — no touching, no drips, no waste. This kit lets you build that exact device. You’ll wire an infrared proximity sensor to detect a hand, trigger a relay, and drive a peristaltic pump that dispenses soap with surgical precision. It’s the kind of project that turns a basic hygiene habit into a fascinating lesson in automation and smart home thinking.

What You'll Build

You’ll assemble a working touchless soap dispenser that sits on a countertop and responds reliably every time. The IR sensor detects approach within a few centimeters, the relay switches the pump on for a short burst, and the pump pushes soap through a silicone tube — no gravity feed, no messy leaks. The entire circuit fits on the included breadboard, and the result is a polished, practical gadget that makes hand washing feel like a tiny piece of the future.

What You'll Learn

• How an IR proximity sensor works and ways to adjust its detection range for different use cases.
• Controlling a relay module with Arduino to safely switch a motor load.
• Wiring a peristaltic pump with flyback diode protection to prevent circuit damage.
• Building a complete, tidy breadboard prototype from a schematic — no soldering needed.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

It’s ideal for young makers aged 8–15 taking their first steps into electronics, whether at home or in a classroom. CBSE students building science fair models will find the automatic soap dispenser a standout exhibit. ATL Tinkering Labs, hobby clubs, and parent-child weekend projects all benefit from the clear, guided experience this kit provides — no prior Arduino knowledge assumed.

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.