LT Easiyl 2Pcs AC 220V to DC 324V Optocoupler Isolation Module, 1 Channel Trigger Switch Sensor Board Compatible with A rduino ESP8266

Function: Converts AC 220/230V input signals to safe DC logic levels for microcontrollers and PLCs, enabling reliable signal isolation. Compatibility: Compatible with A-rduino, ESP8266, PIC, and PLC systems, supporting 3-24V DC output testing and detection. Design: Features a single optocoupler channel with high response sensitivity, offering electrical isolation between high and low voltage circuits. Power Supply: Operates on 3-5V DC, compatible with most development boards and low-voltage control systems. Application: Ideal for automation control, industrial signal detection, sensor triggering, and educational electronic projects.