systems i find interesting.
ATmega128
An eight-bit register, made visible one pin at a time.
X-Man Tornado V3 MagLev
A study of the Pioneer’s magnetic alignment and spring-free tensioning.
Chronograph
A running movement, a clutch, and a stopwatch you can take apart.
Planetary gearbox
One set of gears; three ways to hold, drive, and take power out.
PID controller
Three gains shape how a motor follows a target.
Kalman filter
A moving estimate balances sensor noise against motion uncertainty.
GPU
A small factory showing how parallel work fills a frame.