v1.2.2 back calculation
This release adds
- back calculation as an anti-windup scheme
- examples/PID_simulated_heater/PID_simulated_heater.ino
Back calculation is an anti-windup scheme that dynamically limits the integration windup sum based on how far away the Setpoint is from teh proportional zone (ProcessVar +/- ControlMax/kP)
See br3ttb#116
-- drf 2023-02-26