The selection of a suitable controller involves analyzing the whole temperature control system, as well as the controller. There are three types of controllers: PID, proportional, and on-off. The type ...

[Harvs] hacked a cheap PID controller he found ... this meant the controller was assuming the cold junction was at room temperature, and would in many cases be significantly inaccurate.

The dual-channel PID controller was originally meant as a humidity and temperature controller and was based on existing software for an ATmega328. But after years of tinkering, adding new features ...

where it’s employed for control of temperature, pressure, flow, speed, or position, to name a few typical applications. The theory and mathematics behind PID control have been the subject of ...