cbpi4-BM-PID-SmartBoilWithPump 0.1.6

CraftBeerPi4 PID Kettle Logic Plugin

CBPi4 Braumeister Smart Boil with Pump KettleLogic

This Kettle Logic can be used to run a Speidel Braumeister with CraftbeerPi4. It is based on this cbpi3 Plugin (https://github.com/cgspeck/cbpi-pidsmartboil-withpump)

Mash & Boil in single Kettle (e.g. Speidel Braumeister)

• The Kettle logic is intended to be used in a single Kettle. It is a PID logic. PID parameters can be for instance derived from the PID AutoTune plugin (https://github.com/avollkopf/cbpi4-PIDAutoTune)
• It runs on PID control until it reaches a specified temperature. Above that temperature it heates w/o PID logic until a specified boil temp is reached.
• Power to run boil can be specified in the plugin
• Pump Intervals cen be set to have a pump rest on specified intervals for a specified time (e.g. 60 seconds every 600 seconds which is a default for the Braumeister controller)

Installation:

You can install it directly via pypi.org:

• sudo pip3 install cbpi4-BM-PID-SmartBoilWithPump

Alternativeley you can install (or clone) it from the GIT Repo. In case of updates, you will find them here first:

• sudo pip3 install https://github.com/avollkopf/cbpi4-BM_PID_SmartBoilWithPump/archive/main.zip

Parameters:

• Configurable:

  • P: Proportional - Takes current value into account
  • I: Integral - Takes past values into account
  • D: Derivative - Takes future values into account
  • SampleTime - 2 or 5 seconds -> how often the logic calculates the power setting
  • Max Pump Temp: Pump is switched off above this temperature and cannot be switched back on
  • Max Boil Output: Maximum Power during when Boil Temp is reached
  • Max Boil Temp: When Temp is reached, power is set to Max Boil Output
  • Max PID Temp: PID is switched off above this temperature
  • Rest Interval: Time interval in seconds after which Pump is switched off
  • Rest Time: Pump is switched off for specified time in seconds

• Fixed in Code:

  • Max Output: Maximum Power (%) to be used for PID during Ramp up -> 100%

Changelog:

• 14.06.22: (0.1.6) Disable pump pause during temperature ramp -> pause will take effect only on active timer
• 11.05.22: (0.1.5) Updated README (removed cbpi add)
• 10.05.22: (0.1.4) removed cbpi dependency
• 30.12.21: (0.1.3) Fixed 0 pump/rest time -> Pump will be sitched on at start and off if temp is above controll limit. But no pump pause is triggered
• 01.12.21: (0.1.2) Added security feature: current kettle power is monitored continuously and overwritten in case it's different from the logic loop value
• 21.11.21: Updated setup and Readme
• 15.11.21: Adapted to cbpi 4.0.0.45 with actor power settings
• 01.11.21: Merged Pull request from madhatguy ansd fixed some bugs
• 15.03.21: Support for cbpi >= 4.0.0.32
• 31.10.21: Changed logic to coroutines