Case study

manifold-558s-ble: reconstructing testo 558s measurement messages

manifold-558s-ble reconstructs the testo 558s refrigeration manifold's Bluetooth LE message format from observed traffic between the device and its phone app. Its Python client subscribes to live pressure and temperature measurements, while companion scripts inspect GATT services and decode Android Bluetooth captures.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 0
Last commit: 2026-10-29
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

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

How evidence classes are assigned

Requirements & limits

Prerequisites: A testo 558s, Python with bleak and a Bluetooth LE connection are required for live readings; Windows pairing is required before connecting.
Testing evidence: The author reports testing one 558s on Windows 10 only; pressure units remain unconfirmed under pressure.
License: MIT license.

Cite

BibTeX

@misc{manifold-558s-ble-case,
  title = {{manifold-558s-ble: reconstructing testo 558s measurement messages}},
  howpublished = {\url{https://github.com/damtro/manifold-558s-ble}},
  url = {https://github.com/damtro/manifold-558s-ble},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/manifold-558s-ble-case/}}
}

Plain text

manifold-558s-ble: reconstructing testo 558s measurement messages. https://github.com/damtro/manifold-558s-ble (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/manifold-558s-ble-case/

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Primary sources

README.md GitHub · damtro/manifold-558s-ble · Revision 78be99c