Arduino LoRa Perimeter Sensor Node: Build a Wireless PIR Alarm That Triggers 500m Away

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 motion sensor at your farm’s boundary gate that silently signals your house 500 metres away when someone approaches — no Wi-Fi, no SIM, just reliable long-range radio. This kit gives you exactly the parts to assemble that system, with a trained AI companion that walks you through every connection and line of code. Whether you’re hardening a perimeter, setting up a remote livestock alert, or prototyping a security solution for a college project, you’ll move from components to a field‑ready alarm in a single afternoon.

What You'll Build

You’ll wire and programme two Arduino Nano stations: a battery‑powered PIR sensor transmitter that broadcasts an alarm packet over LoRa the instant motion is detected, and a receiver anchored at your listening post that sounds an active buzzer. The link works reliably across 500 metres of open field, exactly what you need for farm outbuildings, warehouse entrances, or campus boundaries. When the build is complete, you have a self‑contained wireless security node that can be duplicated and scaled across multiple zones.

What You'll Learn

• Configure and pair RA-02 LoRa modules for reliable point‑to‑point data links
• Integrate an HC-SR501 PIR sensor with Arduino to trigger low‑latency transmissions
• Manage power consumption of a battery‑operated sensor node that runs for days on a single 9V cell
• Design a robust alarm protocol with packet verification and error handling over the air

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This intermediate build fits perfectly into Smart India Hackathon hardware tracks, B.Tech ECE/EEE minor projects exploring long‑range wireless, and ATL Tinkering Lab sessions where mentors want a tangible security system within a day. CBSE Class 11–12 students tapping into modern communication protocols for physics investigations will find the LoRa link a rich, real‑world demonstration. Makers from IIT, NIT, VIT, and BITS campuses who need a ready‑to‑deploy sensor node for farm, hostel, or event monitoring will save weeks of sourcing.

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.