Door Open Status Monitor Kit – Your First Real-World Switching Project 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 a small device that senses when a door opens and instantly lights a red LED and sounds a buzzer – a miniature security system you build yourself and mount on any door frame. With this kit, you’ll assemble a functioning door monitor that introduces the core concept of a switch controlling an output, while getting comfortable with Arduino Uno, breadboarding, and basic electronics. It’s the perfect leap from blinking an LED to building something useful in the physical world.

What You'll Build

You will place a magnetic reed switch on a door frame and its magnet on the door itself. When the door is closed, the circuit remains quiet. As soon as the door opens, the reed switch triggers, causing the Arduino to light two red LEDs and activate a buzzer. The result is a crisp, immediate alert that teaches digital input reading, pull-up resistor configuration, and output control. This kit transforms theory into a tangible project you can show at school, science fair, or an ATL innovation day.

What You'll Learn

• How a reed switch works as a magnetic proximity sensor and how to debounce it in code
• Wiring a pull-up resistor to read a switch state reliably with Arduino’s digital pins
• Controlling multiple outputs (LEDs and buzzer) based on a single sensor input
• Structuring an Arduino sketch that runs continuously, waiting for a state change to trigger an alarm

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

At age 5–15, young makers encounter electronics through ATL tinkering labs, CBSE science curriculum, or curiosity-driven weekend projects. This kit suits students in Class 6–10 who want to move beyond simple LED circuits and build a real application. First-year B.Tech ECE/EEE students will also find it a rapid, confidence-building revision of switching logic and sensor integration, ideal before tackling Smart India Hackathon prototypes or club-level demos at IIT, NIT, VIT, and BITS campuses.

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.