PWM control experimental - craftbeerpi/craftbeerpi GitHub Wiki

Best information on subject so far:

The Pulse With Modulation (regulate % power on heater), it can be manually added to CBP2.2 and is expected to be part of CBP version 3.0

PWM regulation involves constant on/off cycles, depending on how many % on time is required.

Two things needs to be done:

  • navigate to the CBP folder and select brewapp/base/automatic/__init__.py

Within that __init__.py file you will just have to add 1 line at the bottom import pwmstep save the file.

  • next you are going to have to make a new file at brewapp/base/automatic/pwmstep.py

  • Navigate to the brewapp/base/automatic and right click and say "new file". Name that file pwmstep.py

  • Now go to https://github.com/.../brewapp/base/automatic/pwmstep.py copy that whole code (57lines) and just paste it into the new file you just made. (link)

  • Save it.

Reboot your system and it should be all set.