ESP32 Dual core, WiFi, BLE 2 ports 4-20mA ADC 16bit 2 ports 0-10V ADC 16bit 4 digital input ports are isolated. 4 relay 10A output ports 1 RS485 port for Modbus RTU 1 Ethernet LAN port for internet connection and modbus TCP / IP upload code via micro USB, using CP2102. Power supply 4 to 35V DC Overcurrent and overvoltage protection at the input terminals. Plastic case can mount din rail. The participants will get me sharing altium files (schematic and pcblayout), I will put your logo on each of your boards. I also have sample code for you to fully master it for industrial, smart farm applications. Such as: MQTT, Blink, read write modbus, read input, write output.