Case study

qcywatch: a QCY Watch GT2 client built from its BLE protocol and face format

qcywatch reconstructs QCY Watch GT2 control and watch-face upload from the QCY Android app, BLE captures and face files. Its Linux scripts create and upload faces, read device information and battery state, sync time and send notifications. The author reports using REA to recover the face container layout.

Targets: App · Protocol
Category: Community REA investigations
Relationship: Author-reported mixed workflow
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 0
Last commit: 2026-10-25
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Linux with recent BlueZ, Python 3.11 or newer, and a QCY Watch GT2.
Limits: The watch accepts one Bluetooth connection at a time; phone Bluetooth must be off during use.
Testing evidence: Other QCY watches and analog faces are untested.
License: MIT license.

Cite

BibTeX

@misc{qcywatch-case,
  title = {{qcywatch: a QCY Watch GT2 client built from its BLE protocol and face format}},
  howpublished = {\url{https://github.com/DhrubaDC1/qcywatch}},
  url = {https://github.com/DhrubaDC1/qcywatch},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/qcywatch-case/}}
}

Plain text

qcywatch: a QCY Watch GT2 client built from its BLE protocol and face format. https://github.com/DhrubaDC1/qcywatch (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/qcywatch-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · DhrubaDC1/qcywatch · Revision a815407
reference.md GitHub · DhrubaDC1/qcywatch · Revision a815407