https://github.com/bendtherules/multimeter-connect-web
Web app - Speaker for bluetooth multimeter (Aneng-9002/BSIDE ZT-300AB/ZOYI ZT-300AB/BABATools AD-900 DMM)
https://github.com/bendtherules/multimeter-connect-web
aneng babatools bluetooth dmm multimeter web-bluetooth
Last synced: about 1 month ago
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Web app - Speaker for bluetooth multimeter (Aneng-9002/BSIDE ZT-300AB/ZOYI ZT-300AB/BABATools AD-900 DMM)
- Host: GitHub
- URL: https://github.com/bendtherules/multimeter-connect-web
- Owner: bendtherules
- License: mit
- Created: 2023-07-16T16:19:39.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2023-07-20T04:30:04.000Z (over 2 years ago)
- Last Synced: 2024-12-30T19:12:57.625Z (10 months ago)
- Topics: aneng, babatools, bluetooth, dmm, multimeter, web-bluetooth
- Language: TypeScript
- Homepage: https://multimeter-speaker.netlify.app/
- Size: 657 KB
- Stars: 4
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# [Multimeter speaker](https://multimeter-speaker.netlify.app/)
[](https://multimeter-speaker.netlify.app/)
## Details
- Connects with Aneng BLE Multimeters using Bluetooth and announces values using Web Speech api.
- Reciprocates buzz with a tone of 2800 Hz.
- Only works with Aneng Big multimeters at the moment (Aneng-9002, BSIDE ZT-300AB, ZOYI ZT-300AB, BABATools AD-900).
- Thanks to @ludwich66 for decoding the protocol at https://github.com/ludwich66/Bluetooth-DMM/wiki/Protocol-all-Variants
- "Live value" shows instant value received from DMM.
- Live value is then debounced and repeat values are removed to get "Announced value".
- "Announced value" is shown in UI and also spoken using Web Speech api. The voice model used can be changed in UI (choice depends on OS).
- When multimeter's Buzz symbol is ON and DIODE symbol is OFF, that indicates multimeter is buzzing. The app also generates a tone of 2800 Hz with 70% volume to make the buzz more audible. (Actual multimeter uses 2150 Hz, but I like this one better.)
- Doesn't work on IOS, because Web Bluetooth Api is not supported. Works on Android, Mac, Windows.
- Supports PWA app installation and offline mode.
- Added automatic BLE reconnect feature (if connection is lost from DMM side). If user clicks "Disconnect" button manually, reconnect is temporarily disabled till next reconnect.
## Todo
- Support other size multimeters from Aneng
- Stop old speech before uttering new speech (based on overlap??)
- Ignore less significant digits??
- Allow configuring volume, pitch, buzz volume, buzz frequency, auto re-connect
- Allow custom template
## Contribution
**It uses Next.js framework with @ducanh2912/next-pwa for offline support. It is deployed on Netlify.**
First, run the development server:
```bash
npm run dev
# or
yarn dev
# or
pnpm dev
```
Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
## Help
Please raise an issue if your Aneng DMM is not supported properly. Feel free to contribute changes.