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!

Beer Brewing Computer

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         This is a project I have been working on for the past couple of months. I needed a way to keep my beer boiling at a certain temperature for an extended period of time. What better then to use a computer to do that for me, so I don't have to physically throttle the propane burner. This brew computer is raspberry pi controller and uses multiple ds18b20 1-wire temperature sensors to monitor the beer temperature. Then using the RPI GPIO I can toggle a mosfet to control a solenoid valve on the gas line.
   
   

   

   Prototype

   
   

   

   Laser cut front panel to identify the potentiometers. I wanted some physical interface to set the temperature. 

   
   

   

   Custom graphical interface which is done in python. These python scripts are ran on boot up, so no need for an X server.

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