USB-C powered RP2350 dual-port SAS interface board with opto-isolated current-loop and RS-232 populate-option front-ends.

ESP32-S3 Industrial PLC Controller schematic architecture for a 24 V industrial PLC with W5500 Ethernet, isolated RS485, 8 opto-isolated digital inputs, and 8 protected high-side outputs.

USB-C powered RP2350 dual-port SAS interface board with opto-isolated current-loop and RS-232 populate-option front-ends.

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