Project Hub /Security Surveillance & Defense/Intrusion Detection Systems/Building Low-Cost Long-Range AirTag with Step-by-step Guide

Intermediate

INDUSBOARD

Project Specific

3 – 6 Hours

Partial Kit

Building Low-Cost Long-Range AirTag with Step-by-step Guide

This DIY guide shows how to build a low-cost, long-range AirTag alternative using an IndusBoard Coin and Wi-Fi technology to provide extended-range coverage and real-time tracking data.

Originally published on ElectronicsForU

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

Cable for Arduino Nano (USB 2.0 A to USB 2.0 Mini B) 30cm Rs. 69.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: Battery (generic / unspecified)
Other Dev Board (Indusboard / Maixduino / misc)
Inductors / Coils / Ferrite

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How It Works

This project implements a low-cost, long-range asset tracking device by utilizing the IndusBoard Coin as the core processing and connectivity unit. The system is programmed using the Arduino IDE via a USB cable, which uploads the necessary firmware to manage network communication and data transmission. Powered by a 3.3V rechargeable battery, the IndusBoard Coin connects to local wireless networks to transmit tracking telemetry and real-time location data over extended ranges compared to standard short-range protocols. To optimize this wireless range, a USB to UFL antenna cable is integrated, allowing an external antenna to be attached securely to the board's UFL connector for improved signal gain and reliable connectivity. Once deployed, the device periodically connects to configured access points to report its status, enabling users to monitor personal belongings and valuable assets remotely through a custom web interface. Proper power management ensures the rechargeable battery maintains adequate voltage during continuous operation.

Why Build This

Develop a custom, scalable asset-tracking solution for personal belongings and valuable equipment using Wi-Fi protocols.

Gain practical engineering experience in integrating external RF antennas to extend wireless communication range.

Implement IoT tracking firmware using the Arduino IDE to transmit real-time telemetry data to web-based interfaces.

Real-World Application

Tracking personal belongings like keys, bags, and valuable assets over extended distances using Wi-Fi and custom web interfaces.

Skills You'll Learn

Embedded firmware development

RF antenna integration

power management for rechargeable batteries

wireless network communication

IoT telemetry transmission

Safety Precautions

Ensure proper alignment of positive and negative terminals when connecting the 3.3V rechargeable battery to avoid short circuits.

Frequently Asked Questions

Can I program the IndusBoard Coin using software other than the Arduino IDE?

While other development environments may support the underlying architecture, this guide specifically utilizes the Arduino IDE for straightforward code compilation and flashing.

Why is a USB to UFL antenna cable necessary for this build?

The UFL cable acts as a bridge to connect an external high-gain antenna to the IndusBoard Coin, significantly improving the wireless signal range for long-distance tracking.

How is the 3.3V rechargeable battery replenished during use?

The battery supplies operating power to the circuit, and depending on the specific IndusBoard Coin variant, it can typically be recharged via the board's power management circuitry when connected to a power source.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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