BT785: verschil tussen versies

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Geen bewerkingssamenvatting
Geen bewerkingssamenvatting
Regel 13: Regel 13:


== Analysis ==
== Analysis ==
[[file:bt785-nrfconnect.png]]
[[File:bt785-nrfconnect.png|right|thumb|BLE characteristics in NRF-connect]]
 
On the lowest level, it uses bluetooth low-level with the GATT profile:
On the lowest level, it uses bluetooth low-level with the GATT profile:

Versie van 12 okt 2025 08:30

Project BT785
Connecting a BT785 EC meter to raspberry pi
Status In progress
Contact bertrik
Last Update 2025-10-12

Introduction

This page is about reverse engineering the BT-785, an inexpensive Tuya-compatible water electrical conductivity (EC) meter. It measures EC and temperature, and has a display and communicates its reading over Bluetooth Low-Energy (BLE) to the Tuya app on a phone. The goal is to understand the communication protocol so we can communicate with it from the raspberry pi in the Karaburan project.

Analysis

BLE characteristics in NRF-connect

On the lowest level, it uses bluetooth low-level with the GATT profile: