Brewpot water level sensor

Working on a new addition to the homebrewing setup. I want to be able to detect water/beer levels in the pot. This circuit will read multiple probes to detect which ones are in water and report the status back to the raspberry pi over the usb serial connection.

I started with a simple circuit I found online, then added my own twist. Had to relearn eagle cad, then sent the eagle project file to Oshpark to get some PCB's made.

Schematic

Board Layout

Final PCB assembled(mostly)

   

Next step will be to get my 3D printer working so I can print the following enclosure that I drew up in Fusion 360.

New PCB for the brew computer

Recently upgraded the beer computer with a new custom pcb designed in eagle cad. The original board had turned into a rats nest after adding modifications over and over. The new board now allows all the breakout boards to easily plug in and is a smaller form factor. One difference is the mosfet to control the solenoid for the gas burner was moved off this board.

Original Board(The rats nest)

The new un-populated pcb.

Finished board!