Build a 4-Zone PIR Alarm Panel with Arduino — Instant Zone Alerts on LED & LCD

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 central panel that watches four rooms, lighting a dedicated LED and showing the zone ID on the LCD the moment motion is detected—then sounding an alarm. This kit lets you build that exact system, perfect for prototyping a home security setup or demonstrating multi-sensor monitoring in a school project.

What You'll Build

You'll assemble a fully functional 4-zone PIR alarm panel. When someone enters a monitored area, the corresponding red LED glows, the 16x2 LCD instantly displays which zone triggered, and the active buzzer alerts you—all driven by an Arduino Uno brain that handles simultaneous sensor inputs without lag.

What You'll Learn

• Calibrating HC-SR501 PIR sensors for reliable motion detection across different room sizes
• Interfacing multiple sensors with Arduino and writing zone-discrimination logic
• Displaying real-time zone information on a 16x2 LCD using an I2C backpack for cleaner wiring
• Building a combined visual (LED) and audible (buzzer) alert system that reacts to specific zones

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for CBSE Class 11-12 students building security system projects, B.Tech ECE/EEE prototyping multi-sensor networks, Smart India Hackathon teams needing a reliable alarm demo, ATL Tinkering Lab members exploring embedded security, and IIT/NIT/VIT/BITS engineering students working on zone-monitoring assignments.

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.