Brew Computer Software Update

A while back I had re-written the homebrew computer python code. It was around the time I was working on the water level sensor for the brew setup. While updating the python code I had added a few new features:

• Added support for 2nd serial/usb connection. One for the arduino handling the buttons and switched under the monitor, the other for the new water level sensor.
• Added Blynk support so I can remotely monitor the brew process using the Blynk app.
• Added PID algorithm to better maintain wort temperature
• Updated the GUI, depicted below

I have now brewed twice with this new setup, so fine tuning is still left to do, but it feel way better to brew with. I have also now made the code available at: https://github.com/kbittle/BrewComputer

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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