Case study

ISDT PB40: reconstructing a power bank's BLE protocol

pb40-bluetooth reconstructs the ISDT PB40/LIMETA EB40 power bank's BLE advertisement and GATT protocol from LiMeta app analysis and device captures. Its Home Assistant integration reads charge state without connecting, polls power and energy through GATT, and exposes a find-device command and reported settings.

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: 2026-08-22
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: Home Assistant with a Bluetooth adapter or ESPHome Bluetooth proxy in range of an ISDT PB40/LIMETA EB40.
Limits: GATT connections may be unreliable at the weak signal levels observed by the author.
License: MIT License.

Cite

BibTeX

@misc{pb40-bluetooth-case,
  title = {{ISDT PB40: reconstructing a power bank's BLE protocol}},
  howpublished = {\url{https://github.com/PetePeter/pb40-bluetooth}},
  url = {https://github.com/PetePeter/pb40-bluetooth},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/pb40-bluetooth-case/}}
}

Plain text

ISDT PB40: reconstructing a power bank's BLE protocol. https://github.com/PetePeter/pb40-bluetooth (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/pb40-bluetooth-case/

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About this entry

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Primary sources

docs/PROTOCOL.md GitHub · PetePeter/pb40-bluetooth · Revision d6b6060
README.md GitHub · PetePeter/pb40-bluetooth · Revision d6b6060