Try version2!
Total separation of physical simulation, PID algorithm and GUI. The setup is intended to realistically mimic a physical body with a specific heat capacity, a measurement delay, and an input delay + low pass filter (heater delay) for more realism.
This is a simple PID simulator I wrote in .NET, created to get a feel of how to tune a PID by adjusting the various properties.
Our purpose is the modeling of the evolution of intelligence, and to understand how to create intelligent entities from unintelligent elements, from snipets of experience