ESP32 arduino-6 digital in (optical isolation opto)-6 out relay (panasonic)-2 analog in 0-10V adc 14bit-2 analog in 0-22mA adc 14bit-one wire ds18b20 (can connect more sensor)-one wire dht21 (can connect more sensor)-modbus rtu (port rs485)-lan ethernet-wifi-power 5 to 35V AC or DC.Can mounting din rail, upload code via cp2102 usb.If you want this project (altium and source code), contact me via mail for me thanhnamLT5@gmail.com or my facebook https://www.facebook.com/kuem0912