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owonb41t

v0.1.2

Published

A web-bluetooth interface for the OWON B41T+ multimeter

Downloads

44

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

pbrunotpbrunot

Keywords

webbluetoothBTowonmultimeterB41T+

Readme

Owon B41t

Javascript interface for digital multimeter OWON B41T+ Test it here: https://pbrunot.github.io/owonb41t/multimeter.html (requires a modern browser with Javascript Bluetooth enabled)

image

Owon meters protocol

B41T+ follows B35 protocol, which is described here : https://github.com/DeanCording/owonb35

Basically every BT notification contains 3 int16:

  • one identifying the active measure, the number of decimals, and the units
  • one identifying the measure type (hold/auto/max/min...) * this one is not parsed at the moment *
  • one containing the displays digits with most significant bit used as sign bit

Bluetooth with Javascript

https://googlechrome.github.io/samples/web-bluetooth/index.html

Adapter required for PC

Bluetooth BLE 4.0+ Tested with TP-Link UB400 Check bluetooth first with Chrome browser: chrome://bluetooth-internals