PID with simulated heater or motor

[DaveX]

Here are the plain Arduino PID example code demos implemented in Wokwi:

@DaveX

• PID_Basic.ino repository code
  • Slider Simulation -- You are the process to be controlled by the PID.
  • OpAmpSimulation -- An external process is simulated by some Wokwi custon chips
• PID_Relay.ino -- Note that the pinMode is set for the output pin, as per The PID_RELAY_OUPUT.ino file doesn't set pinMode(RELAY_PIN,OUTPUT) · Issue #146 · br3ttb/Arduino-PID-Library · GitHub
• PID_AdaptiveTunings.ino --

I think the simulation where you are the process/plant and use a slide potentiometer to communicate your ProcessVariable to the PID are the most hands-on in understanding those PID examples:

https://wokwi.com/projects/412997833205485569

and

https://wokwi.com/projects/410423413759806465