Automatic Clothes Dryer Controller Kit with Arduino Uno & Relay

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

Stop guessing when laundry is dry. Build a smart controller that monitors humidity inside a dryer drum and automatically pauses the tumbler the moment clothes are ready. This beginner‑friendly kit combines an Arduino Uno with a DHT11 sensor and a relay module, letting you create a working prototype of a real home automation appliance. From CBSE school projects to tinkering at home, you’ll wire, code, and demonstrate a circuit that reacts to changing moisture levels.

What You'll Build

A breadboard‑based humidity monitor that reads the air inside a simulated dryer chamber, triggers a relay when humidity drops below 30%, and stops the dryer motor (or a connected fan/light for safety). The circuit includes flyback diodes to protect against voltage spikes, giving you a solid foundation in safe relay control. Once assembled, you can watch the system respond in real time as a damp cloth dries nearby, proving the concept for any future home automation idea.

What You'll Learn

• Interface a DHT11 humidity sensor with Arduino Uno over a single digital pin
• Write conditional logic that turns a relay on or off based on real‑time sensor data
• Use a 1N4007 flyback diode to protect the relay coil from voltage surges
• Plan a practical IoT‑inspired home automation project for school or college submissions

Kit Contents

Component	Quantity
Arduino Uno R3	1
DHT11	1
5V Relay Module	1
1N4007 Diode	5
10kΩ Resistors	5
400-pt Breadboard	1
M-M Wires	15
9V Battery Snap	1

Why Buy This Kit Instead of Sourcing Parts Separately

Factor	Sourcing Separately	Compoden Kit
Compatibility checks	You verify every part	Pre-tested as a system
Build support	Forums and scattered tutorials	AI companion trained on this exact project
Time to first working build	Days of debugging	Hours, with step-by-step guidance
Shipping coordination	Multiple sellers, multiple delays	One shipment from Bengaluru in 3-5 days

Who This Kit Is For

Designed for young inventors and students aged 10–15, this kit fits perfectly into CBSE Class 11–12 physics and computer science projects, ATL Tinkering Lab activities, and early B.Tech ECE mini‑projects at VIT, BITS, or NIT. It’s also a great hands‑on gift for a child who wants to see electronics react to the real world. No prior soldering or coding experience is needed—just curiosity.

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.

What if I get stuck during the build?

Scan the QR code on the box to open the AI companion trained on this exact circuit. It walks you through wiring, code, and troubleshooting. Still need help? Reach us on WhatsApp, and a real engineer will reply within a few hours.

Can this kit control a real clothes dryer?

The kit is a safe, low‑voltage prototype. Connect the relay to a small fan or light bulb to simulate the dryer motor. For an actual mains‑voltage dryer, an adult should add an enclosure and an electrician’s guidance—this project teaches the core logic perfectly.

Is any soldering required?

No soldering at all. Every connection is made with pre‑cut male‑to‑male jumper wires on a 400‑point breadboard. You can build and rebuild in minutes.

What if the DHT11 reads humidity incorrectly?

The sensor may need a few seconds to stabilize after power‑up. The AI companion includes a calibration snippet and wiring check—most issues come from a loose data pin connection, and the companion will help you spot it instantly.

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