Drawer

Controls

3 sheets in this drawer.

  1. Encoder quadrature you'll decode without the phase chartIncremental encoders give you direction and distance, but only if you sample both channels correctly. Here's how to wire and poll quadrature without consulting the timing diagram every build.
  2. PID tuning without the spreadsheet theaterStop guessing gains from blog posts. A disciplined step-response test and three coefficients you measure yourself will outperform any magic number you found online.
  3. Knobs that feel honestIf the detent lies about the value, the whole device starts lying.