Content
Start
Description
Technical Specifications
FAQ
Copyright & Intellectual Property
Gelotag 1.0
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Watch how i made it
Description
Hello! This is Gelotag, a handmade BLE-enabled tracking device powered by an ESP32. It connects via Bluetooth to your smartphone and allows you to activate a small buzzer remotely, helping you locate whatever it's attached to.
Gelotag includes a built-in rechargeable LiPo battery (250 mAh) and a TP4056 charging module.
You can find the source code on GitHub, and the .stl files of the 3d model on Thingiverse.
Technical Specifications
| Feature | Details |
|---|---|
| Connectivity | Bluetooth Low Energy (BLE) |
| Main Controller | ESP32-C3-Supermini |
| Buzzer | Piezoelectric sound buzzer (activated via BLE) |
| Battery | 3.7V 250 mAh LiPo |
| Charging Module | TP4056 with protection |
| Charging Port | USB-C |
| Materials | PLA + electronic components |
| Dimensions | Approx. 75 x 42 x 22 mm |
FAQ
- Does it work everywhere?
- No, it only works within Bluetooth Low Energy (BLE) range — typically 10 to 20 meters indoors, and up to 50 meters outdoors.
- How long does the battery last?
- With a 250 mAh LiPo battery and mostly idle operation, battery life is around one week.
Copyright & Intellectual Property
The design, electronics, and content related to this project are open for personal use, modification, and redistribution. Commercial use, resale, or redistribution for profit is not permitted without prior consent.