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This project builds a bench-grade digital function generator around the AD9833 DDS waveform chip, driven by an Arduino with a...
This project builds an Arduino-based battery capacity tester that discharges 18650 and other Li-ion cells through a calibrate...
This project builds an acoustic levitation rig from two opposed circular arrays of 40 kHz ultrasonic transducers: their oppos...
This project builds a servo voltage regulator around a motor-driven toroidal autotransformer (variac): a DC gear motor moves...
This project builds a bench-scale 12 V DC microgrid panel that combines a solar panel, a lead-acid battery and a mains-derive...
This project builds a bench-scale kit for testing the dielectric strength (breakdown voltage) of transformer oil — the routin...
This project builds a hands-on test bench for the single-phase full-wave bridge rectifier — the circuit inside almost every D...
This project builds a classroom trainer for the fall-of-potential method of measuring earth electrode resistance — the standa...
This project builds a working direct-on-line (DOL) starter control panel — the standard way small three-phase induction motor...
