https://f-droid.org/en/packages/com.espruino.gadgetbridge.banglejs/
Bangle.js Gadgetbridge | F-Droid - Free and Open Source Android App Repository
Android companion app for Bangle.js built on top of the Gadgetbridge project.
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https://gadgetbridge.org/internals/specifics/banglejs-protocol/
Bangle.js Protocol - Gadgetbridge
A free and open source Android application for bluetooth devices.
bangle jsprotocolgadgetbridge
https://gadgetbridge.org/gadgets/wearables/banglejs/
Bangle.js - Gadgetbridge
A free and open source Android application for bluetooth devices.
bangle js gadgetbridge