Window Security Alarm Kit with Arduino Uno: Master Timed Conditional Logic

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 security system that doesn't false-trigger when a window is opened momentarily, but blares an alert only if it stays open—exactly the logic used in real home automation. This kit turns that concept into a hands-on project. You'll build a window alarm that uses a reed switch to detect an open panel, flashes an LED as a warning, and after a 30-second delay, activates a buzzer if the window remains unsecured.

What You'll Build

You'll assemble a fully functional alert unit on a breadboard. The reed switch senses when a magnet (attached to the window frame) moves away. The Arduino starts a timer; if 30 seconds pass without the magnet returning, the active buzzer sounds and the red LEDs flash until the window is closed. This project works equally well on doors, cabinets, or even a fridge—anywhere magnetic contact can be monitored.

What You'll Learn

• Connect and read a reed switch sensor using Arduino's digital input
• Write non-blocking timing logic with millis() to create delays without pausing the whole program
• Control an active buzzer and LEDs as visual and audible alarm outputs
• Test and debug a real-time monitoring system on a breadboard

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This beginner-level project is perfect for CBSE Class 11–12 students stepping into microcontrollers, first-year B.Tech ECE/EEE students tackling embedded systems, and ATL Tinkering Lab facilitators running introductory workshops. Parents introducing children (ages 10+) to coding will find the timed logic intuitive and rewarding—a concrete home automation project that sparks curiosity in electronics.

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.