Multi-Channel AC Dimmer Control: 2CH and 4CH Guide 26 февр. 2026 г. 0 10 FAQ TL;DR: 2CH 8A and 4CH 10A modules share one ZC pin across all channels. Each channel has its own DIM pin. One interrupt call in code covers all channels; brightness is set independently per channel ha... Arduino ESP32 ESP8266 RBDdimmer ac-dimmer multi-channel tutorial Читать далее