Beer Logger for Tilt

Beerlogger is a simple linux service that logs temperature and gravity from a Tilt hydrometer. As we are running on a Pi however we can also run a web server and make the results available to the world (though router config and system capacity for this I'm afraid is your problem).

It was designed to stop me having to go out to the garage to see what was happening all the time.

Installation

Install it on a fresh copy of Raspbian on a Pi Zero W. Make sure you get wifi working reliably first and raspbian updated. Then

git clone https://github.com/nickl111/beerlogger.git
cd beerlogger
bash install.sh install

This uses Bluez. Bluez is... temperamental. Restarting the bluetooth service maybe occasionally be necessary.

Should you decide you don't want it bash install.sh uninstall should remove it cleanly but leave the data in /usr/share/beerlog.

Usage

Stick the Tilt in the beer, plug in the pi nearby and then head to a web browser. Hit http://[yourpiip]:8336/ and follow the instructions. Don't forget to set the color of your Tilt on the new brew: Red 10 Green 20 Black 30 Purple 40 Orange 50 Blue 60 Yellow 70 Pink 80

Now you should shortly have some pretty graphs. It is pretty much fire and forget, but don't forget your data is on the pi, not in the cloud.

Notes

I have an Inkbird temperature controller actually controlling the heating and cooling (a brewbelt on the fermenter and the whole thing is in a fridge). In principle it wouldn't be much work to get the Pi to control the heating via a relay but in practice it's simpler and safer and as cheap to just to run the Inkbird.

Known Issues

• The web interface is basic, buggy and probably hideously insecure. Don't expose it to the world. Feel free to improve.