Thanks for all the help. Looks like I will go with the I2C - ideally I would use a brewpi board but it seems tricky to get here without shelling out and I'm trying to do things somewhat cheaply. Since it's just the I2C and a pull up resistor to add I reckon I should be able to pull it off...
Thanks very much for the help!
Here's what I've got. Should be a reasonable base to do the electronics on for what I can see.
I assume they all work with the parallel LCD. Any information (like default pins) on this beyond available in the docs here...
Hi, I recently got back into homebrewing and wanted to set up a brewpi to convert my old fridge to a brewing chamber. I inherited some parts from a friend who was downsizing including a RPi 3B+, a knockoff "Elgoo" Arduino uno r3 with a prototype shield and a couple of 16 by 2 LCD screens. The...