Interactive simulations of feedback and signal processing — how a controller tames a system's response, what happens when you sample a signal too slowly to trust it, and the classic balancing problem that shows why proportional control alone often isn't enough.
The loop is tuned correctly, the valve is fully open, and the controller keeps asking for more — then makes you pay for it.
Why a bigger boiler cycles faster, why short-cycling wrecks compressors, and why the worst day for your heating is a mild one.
Get a plant model out of one step test — time constant, dead time and gain — then see whether PID can control what you measured.
Tune proportional, integral, and derivative gains and watch the closed-loop step response settle, overshoot, or oscillate — live.
See the Nyquist limit in action — sample a signal too slowly and a fast frequency masquerades as a slow one.
The classic PID teaching plant — see exactly why proportional-only control fails and derivative action is required.
Build a transfer function from gain, poles, zeros and integrators — see the magnitude and phase plots live, with gain and phase margins.