[deutronium]

I used a time of flight sensor in an attempt to measure the specific gravity of beer - https://www.anfractuosity.com/projects/zymeter-simple/

https://www.sparkfun.com/products/12784 - Is the little board I used, and used a logic level converter.

I attached a little polystyrene circle to the top of the hydrometer, for the IR to bounce off.

Unfortunately the approach didn't work too well because of yeast krausen pushing the hydrometer about.

[pyoung]

That's neat! Regarding your temp sensor issues, I used the same sensor for beer monitoring. Not sure if is is the same issue, but I was able to resolve it[1].

[1] http://www.blog.pyoung.net/2015/01/28/ds18b20-crc-check-code...

[deutronium]

Ooh thanks a lot for the heads up!