![110/220VAC Opto-Isolated Zero Cross Detector Module for DIN Rail Carrier Mount with 3.3V or 5V Output - Ideal for Arduino, ESP32/ESP8266 - Share Project - PCBWay 110/220VAC Opto-Isolated Zero Cross Detector Module for DIN Rail Carrier Mount with 3.3V or 5V Output - Ideal for Arduino, ESP32/ESP8266 - Share Project - PCBWay](https://pcbwayfile.s3.us-west-2.amazonaws.com/web/22/08/16/0945466172183.png)
110/220VAC Opto-Isolated Zero Cross Detector Module for DIN Rail Carrier Mount with 3.3V or 5V Output - Ideal for Arduino, ESP32/ESP8266 - Share Project - PCBWay
GitHub - Egoruch/Zero-Crossing-Detector-STM32-HAL: Two simple circuits (electrically isolated and non-isolated) of zero-crossing detector of main's AC.
GitHub - Egoruch/Zero-Crossing-Detector-STM32-HAL: Two simple circuits (electrically isolated and non-isolated) of zero-crossing detector of main's AC.
![GitHub - bga/zero-cross-AC-opto-detector: simple isolated AC zero cross detector using cheap PC817 and TL431 GitHub - bga/zero-cross-AC-opto-detector: simple isolated AC zero cross detector using cheap PC817 and TL431](https://raw.githubusercontent.com/bga/zero-cross-AC-opto-detector/master/media/schematic.png)