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This project builds a working USB digital oscilloscope module: an Arduino Nano samples two analog channels with its 10-bit AD...
This project builds a working one-octave piano played by touch — eight TTP223 capacitive touch sensor modules act as the keys...
This project builds a working short-range stereo FM transmitter around the Rohm BH1417F PLL transmitter IC — a real broadcast...
This project builds a working three-phase induction motor soft starter that ramps the motor voltage smoothly using back-to-ba...
Electric vehicles recover energy when braking because their motors can run backwards as generators. This project demonstrates...
DC injection braking stops it fast: after disconnecting the AC supply, a controlled DC current is injected into the stator wi...
Mains voltage in many areas swings far outside the safe band — dips that stall refrigerator compressors, surges that kill TV...
In industry, several motors must start in a fixed order, because starting everything at once overloads the supply and startin...
This project is a working demonstration model of the Scotch yoke mechanism — one of the classic rotary-to-reciprocating conve...
