BREWCOP is a Raspberry pi that Electronically Weighs COffee Pots
There's a Hackathon project to put a point-of-sale scale by the coffee pot at work, and use the weight to infer how much coffee is in the pot, then send slack notifications to people as it gets filled/emptied.
Right now there is a primitive C program for querying the Avery-Berkel 6702 bench scale
The scale is interfaced to a raspberry pi 2 using an
RS-232 converter.
The device appears as /dev/ttyAMA0 on the pi, after disabling
console output in raspi-config. No NULL modem adapter was
required between the converter and the scale, which expects a
serial configuration of 9600,7N1.
The raspberry pi has a Touch Screen.