# BLE Blood Pressure Monitor: analysing BC54 measurement packets

> An ESP32 client investigates the BC54 blood-pressure monitor's BLE exchange and parses measurements from the Blood Pressure Service. Its notes map the measurement flags, pressure values and optional fields and describe bonded, encrypted pairing.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/aleksanry/Reverse_Engineering_BP>
- Primary source: <https://github.com/aleksanry/Reverse_Engineering_BP/blob/641600449ac881355ec19bcb7aeeed34fe58e9fc/README.md>
- Catalog page: <https://awesomerea.org/resources/ble-blood-pressure-bc54-case/>
- Record JSON: <https://awesomerea.org/resources/ble-blood-pressure-bc54-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/ble-blood-pressure-bc54-case/index.md)

## Requirements & limits

- An ESP32 development board and a BC54 blood-pressure monitor or compatible device.
- Arduino IDE with the ESP32 board package and BLE libraries.
- No licence file in the repository.

## Primary sources

1. <https://github.com/aleksanry/Reverse_Engineering_BP/blob/641600449ac881355ec19bcb7aeeed34fe58e9fc/README.md>

## More in Protocols

- [LD2410S: investigating radar buses and firmware](https://awesomerea.org/resources/ld2410s-reverse-engineering-case/index.md) · Case study
- [MiniToo Pixeldeck: Divoom display protocol and input research](https://awesomerea.org/resources/minitoo-pixeldeck-case/index.md) · Case study
- [fnb58-ble-logger: FNB58 Bluetooth measurement protocol](https://awesomerea.org/resources/fnb58-ble-logger-case/index.md) · Case study
- [KBM TG700 Control: Linux keyboard settings from USB protocol analysis](https://awesomerea.org/resources/kbm-tg700-control-case/index.md) · Case study
- [ssmouse: a client for the Rival 3 Wireless HID protocol](https://awesomerea.org/resources/ssmouse-case/index.md) · Case study
- [KuKirin G2 Master: decoding the display-controller UART protocol](https://awesomerea.org/resources/kukirin-g2-master-uart-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.