Pin D2 receives a 0-5VDC pulse, generated with a push-button SW1 generated. Fast response time on zero-crossing of 1µs + Arduino digital processing cycles. Topology schematic available in 20250507 - ...

Posted in Arduino Hacks, hardware Tagged arduino, capacitive coupling, motion detection ← Computers Beating Computers At Cricket Make Your Own Infrared Camera On The Cheap! → ...

The rising frequency and severity of fire events endangers human life and property. Firefighting is a momentous and perilous job. Fire detection and extinguishment are the hazardous job that ...

Mains-zero-crossing-detector Arduino Nano as Mains Zero-Crossing Detection Tool. Full-wave rectifies mains signal and compares it to a near-ground VDC signal to produce a 'zero' crossing signaling ...