A Hall-effect sensor responds to magnetic field, but its output may be a digital switch, a latch, or a linear analog signal. Not every module provides…
The ZMPT101B produces an isolated, scaled analog waveform related to AC voltage, but a small transformer on an exposed breakout does not make a mains…
We've already covered the TM1637 display as an interactive up/down counter with button controls and EEPROM storage. This project uses the same display…
The BH1750 measures light the way a proper light meter does — in lux, the actual unit of illumination — rather than the vague, uncalibrated brightness…