Senior Movement Alert Kit v2
Senior Movement Alert Kit v2 — Arduino LoRa Mesh Elderly Care Alarm System
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Construct an 8-node LoRa mesh network that autonomously relays movement alerts from battery‑powered sensors to a central gateway panel — no WiFi, no subscription fees. Designed for Indian homes where walls, floors, and distance complicate conventional alarm systems, this kit puts a self‑healing, low‑power wireless backbone in the hands of the caregiver. The moment a PIR sensor detects motion or a reed switch registers an open door, the mesh routes the alarm through the most reliable path, flashing an alert on the gateway even if the originating node is three concrete walls away.
What You'll Build
You will assemble eight weatherproof sensor nodes, each powered by an 18650 cell and driven by an Arduino Nano with a LoRa module. These nodes monitor room occupancy and door status, form a dynamic mesh, and forward alerts to a central Arduino‑based gateway. The gateway logs all events, drives a buzzer, and can interface with additional modules for SMS or dashboard reporting. The finished system covers up to 500 m line‑of‑sight outdoors and reliably penetrates 2–3 floors in typical Indian construction.
What You'll Learn
- Configure and program a LoRa mesh protocol using RA‑02 modules and Arduino Nano
- Design battery‑managed sensor nodes with TP4056 charging and deep‑sleep power saving
- Integrate HC‑SR501 PIR motion sensors and reed switches into embedded firmware
- Debug mesh topology, routing tables, and event‑driven logic on prototype PCBs
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 9 |
| RA‑02 LoRa Module | 9 |
| HC‑SR501 PIR Sensor | 8 |
| Reed Switch | 8 |
| 433MHz Antenna | 9 |
| 18650 Li‑ion Cell | 8 |
| TP4056 Charging Module | 8 |
| 100nF Capacitor | 30 |
| 10kΩ Resistor | 20 |
| PCB Prototype Board | 9 |
| Waterproof Enclosure | 8 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
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 is tailored for B.Tech ECE/EEE final‑year students building IoT‑based healthcare projects, professionals creating assistive technology for elders, and Smart India Hackathon participants focusing on geriatric care. It also serves tech‑enabled caregivers and NRIs who want to set up a reliable, offline monitoring system for parents living independently in joint‑family homes or retirement communities across India.
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 launch the AI companion, which contains step‑by‑step guides, wiring diagrams, and code for this exact mesh system. You can also reach us on WhatsApp for direct support.
Do the sensor nodes require a WiFi network?
No. The entire system runs on a standalone LoRa mesh — no WiFi router, internet, or SIM card is needed. The gateway itself only needs power and generates all alerts locally.
Can I add more than eight sensor nodes later?
Yes. The mesh firmware can be expanded to handle up to 20 nodes without changing the hardware. You only need additional Arduino Nano, RA‑02, PIR/reed switch, and enclosure; we provide the updated mesh routing code.
What range can I expect inside an Indian home?
In typical brick‑and‑concrete construction, expect 50–100 m per hop indoors, easily covering 2–3 floors. Outdoors, a single hop can reach 500 m line‑of‑sight. Mesh relays extend total coverage far beyond these per‑hop limits.
Elderly Care — Eight LoRa sensor nodes self-route alarm messages through mesh to a central gateway panel.
What's in this kit
- Arduino Nano x9
- RA-02 LoRa x9
- HC-SR501 PIR x8
- Reed Switch x8
- 433MHz Antenna x9
- 18650 Cell x8
- TP4056 Module x8
- 100nF Caps x30
- 10kΩ Resistors x20
- PCB Prototype Board x9
- Waterproof Enclosure x8
- Soldering Iron
- Solder Wire
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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