OpenHaystack Mobile - Tracking Custom Find My Accessories on Smartphones
Lukas Burg, Max Granzow, Alexander Heinrich, Matthias Hollick · 2022
In 2021 OpenHaystack on macOS was the first step into liberating Apple's Find My technology to be integrated into any Bluetooth-capable device. By using custom firmware for microchips like the ESP32, it was possible to build custom trackable accessories similar to an Apple AirTag in size and functionality.