FermentPi

Multiple vessel fermentation controller for the Raspberry Pi

Specifications

• Utilize Python, Angular, and CouchDB+PouchDB to build the core business logic. No Arduino or other shields technically required.
• https and login / authentication from the ground up
• PiFace Digital Revision 2 and a JBtek 8 Channel DV 5V Relay Module are recommended for ease of installation.
• Objected-oriented design will be used via the Flask framework to represent all physical aspects of the system (vessels, sensors, relays, indicator lights, basically anything physical or part of the I/O)
• Specify fermentation schedule with multiple intervals, with a hard start date. When fermentation is finished, the temperature on the last step shall be held until the schedule is marked as complete, ensuring no erroneous fluctuations of the beer.
• Support import of BeerXML based recipe to create the fermentation schedule.
• Log all configuration, sensor data, etc in CouchDB
• Allow any of the bits of information to be sent to channel(s) on Dweet.io

Long-term features

• Support ThingSpeak API / accounts for remote monitoring of fermentations.
• Build software in such a way that the same underlying PLC logic can be used to control the brewing process, in addition to fermentation.

Dependencies

• Angular
• CouchDB
• Flask
• dweepy
• python-dotenv

Reference Projects

• https://github.com/ronanguilloux/temperature-pi
• http://code.activestate.com/recipes/577231-discrete-pid-controller/
• http://flask.pocoo.org/snippets/111/