Industrial ESP32-C3 controller board with isolated RS-485, protected 12V-24V input, opto-isolated digital inputs, sensor interfaces, and production debug header.

ESP32-S3-WROOM 12V Relay Controller: 8x Opto-Isolated 127/220VAC Inputs, 8x 10A NO/COM Relays, Wi-Fi/BLE/Ethernet, I2C/SPI

110VAC 1.5A Fan Dimmer with Opto-Isolated TRIAC and Full Protection