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

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 ...

For example, a temperature sensor positioned a long distance from a heater can slow response to dynamic changes. Changes in machines and processes due to disturbances and set point changes are why PID ...

PID loop tuning is covered in many articles and will not ... 5 senses the overhead temperature of the steam regenerator, and the output from the temperature controller (TC) drives the two steam flow ...