Ketonix Breathalyser App. Linux Port.
To use edit the js/secrets.js file and change the API key to match your ThingSpeak channel.
The app will automatically post to ThingSpeak every 15 seconds when there is a value about 0.
To run you will need to download NW.js (https://nwjs.io/)
You will also need access to /dev/hidraw* on your system, no other drivers are needed.