Case study

Polycab PSIS-3K-SM1: recovering Bluetooth telemetry for MQTT

Polycab Solar Inverter to MQTT reads Bluetooth telemetry from a PSIS-3K-SM1 inverter using values the author says were recovered from its Android monitoring app. A Python service publishes solar power, voltage, current, temperature and energy readings to a Mosquitto MQTT broker.

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: 3
Last commit: 2024-09-26
Language: Python

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: A Polycab PSIS-3K-SM1 inverter with Bluetooth access and an MQTT broker; the author runs the script on a Raspberry Pi Zero 2 W.
Limits: The author has not identified the meaning of the Active Power field.
License: No licence file in the repository.

Cite

BibTeX

@misc{polycab-solar-inverter-to-mqtt-case,
  title = {{Polycab PSIS-3K-SM1: recovering Bluetooth telemetry for MQTT}},
  howpublished = {\url{https://github.com/Safarchand/Polycab-Solar-Inverter-to-MQTT}},
  url = {https://github.com/Safarchand/Polycab-Solar-Inverter-to-MQTT},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/polycab-solar-inverter-to-mqtt-case/}}
}

Plain text

Polycab PSIS-3K-SM1: recovering Bluetooth telemetry for MQTT. https://github.com/Safarchand/Polycab-Solar-Inverter-to-MQTT (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/polycab-solar-inverter-to-mqtt-case/

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Primary sources

README.md GitHub · Safarchand/Polycab-Solar-Inverter-to-MQTT · Revision af36ecd