Auto Light Energy Saver Kit v2
Create a 500-Meter Wireless Motion Alarm with the Auto Light Energy Saver Kit v2 (Arduino + LoRa)
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 single PIR sensor detecting movement in a remote field, warehouse, or backyard, then instantly triggering an alarm at a receiver 500 meters away — without Wi‑Fi, without routers, and while saving battery power. The Auto Light Energy Saver Kit v2 gives you all the tools to build that exact system using Arduino Nano and RA‑02 LoRa modules. You’ll solder nothing, write clear Arduino code, and end up with a functional prototype that makes energy‑saving security a physical reality.
What You'll Build
You’ll assemble a wireless alarm network consisting of one PIR motion sensor node and one receiver unit that sounds an active buzzer on detection. The sensor node sends LoRa packets over 433 MHz, reaching up to half a kilometre in open terrain. Once built, you can log detection events on a PC, extend the system with more sensor nodes, or integrate it into a larger smart‑energy project.
What You'll Learn
- Configure and program the Arduino Nano for real‑time sensor monitoring
- Interface the HC-SR501 PIR sensor and calibrate its detection zone
- Establish long‑range LoRa communication between two RA‑02 modules
- Assemble a modular wireless system on breadboard without soldering
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 2 |
| RA-02 LoRa | 2 |
| HC-SR501 PIR | 1 |
| 433MHz Antenna | 2 |
| Active Buzzer | 1 |
| 100nF Capacitor | 10 |
| 9V Battery Snap | 2 |
| 400-pt Breadboard | 2 |
| M-M Jumper Wires | 20 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit aligns perfectly with CBSE Class 11–12 physics and computer science projects, B.Tech ECE/EEE semester labs, and Smart India Hackathon prototypes. ATL Tinkering Labs across schools will find it a ready‑made wireless sensor exploration. Students at IITs, NITs, VIT, and BITS Pilani use similar LoRa‑based builds for rural connectivity and energy‑efficient security 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.
What if I get stuck during the build?
Scan the QR code on the box to access the AI companion that walks you through wiring, code upload, and antenna placement. You can also text the same number on WhatsApp for quick help.
How far can the alarm signal really travel?
In an open field with clear line of sight, you can expect a reliable 500-metre range. Indoor range through a few walls is typically 50–100 metres. The kit includes two tuned 433 MHz antennas to maximise reach.
Can I power the sensor node outdoors for a long time?
Yes. Each Arduino Nano runs from a 9V battery. With the PIR module’s low‑power design and LoRa’s sleep mode, the transmitter can last several days on a single battery. For permanent outdoor use, you can later switch to a small solar panel and rechargeable battery.
Does this kit require the internet or Wi‑Fi to work?
No internet or local network is needed. The alarm system uses LoRa, a direct peer‑to‑peer radio protocol that works just on power. You can place the transmitter anywhere, and the receiver simply listens — completely off‑grid.
Energy Saving — Single PIR node transmits alarm over LoRa to a receiver 500m away in open field.
What's in this kit
- Arduino Nano x2
- RA-02 LoRa x2
- HC-SR501 PIR
- 433MHz Antenna x2
- Active Buzzer
- 100nF Caps x10
- 9V Battery Snap x2
- 400-pt Breadboard x2
- M-M Wires x20
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items