Detect Intruders from 500m Away with the Arduino LoRa Perimeter Sensor Kit

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 your own silent sentry that tells you the instant someone crosses a remote boundary - no internet, no SIM card, just reliable radio waves. This LoRa Perimeter Sensor Node kit turns two Arduino Nano boards into a 500-metre motion alert system: a battery-powered PIR transmitter at the perimeter and a buzzer-equipped receiver that sounds the alarm when an intruder passes. Use it to secure a farm entrance, monitor a warehouse yard, or create a science fair project that demonstrates practical wireless communication.

What You'll Build

You will construct two separate but paired modules - a transmitter that stays vigilant with a HC-SR501 passive infrared sensor and an RA-02 LoRa module, and a receiver that listens for the alarm packet on the same 433MHz frequency and triggers an active buzzer. The transmitter runs on a 9V battery, making it truly portable, while the receiver can stay indoors plugged into USB. Tested in an open field, the kit achieves a reliable 500-metre line-of-sight range, giving you real-time intrusion alerts without any monthly fee.

What You'll Learn

• Interfacing HC-SR501 PIR motion sensors and tuning their sensitivity for outdoor use.
• Programming RA-02 LoRa modules for simplex point-to-point communication using the Arduino IDE.
• Implementing a state-machine logic to avoid false alarms and ensure reliable alerting.
• Designing low-power embedded nodes that run for hours on a common 9V battery.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit suits CBSE Class 12 students building physics investigatory projects on wireless communication, B.Tech ECE/EEE first-year students prototyping LoRa for Smart India Hackathon, ATL Tinkering Lab mentors looking for a ready-made long-range sensor demonstration, and hobbyists around Bengaluru wanting to add security to farmhouses. The breadboard-based assembly suits intermediate makers who have tried basic Arduino before.

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.