Pin define and pcb

[cesarblancartelizarraga]

here is schematic of KC868-A6 , i think this is useful for you know all details:
https://www.kincony.com/download/KC868-A6-schematic.pdf

all our board schematic can download from https://www.kincony.com/document

Thanks for your suggestion, we will update all information links on one webpage.

temperature sensor you can connect to "IO-2" and "IO-1". These two GPIOs have pull-up resistance. such as connect with DS18B20 or DHT11/21/22 temperature and humidity sensor. Actually you can use multi DS18B20 senosr with one GPIO.

A1-A4 is 4 channel analog input ports.  2 channel: analog input DC 0-5v  ,  2 channel: analog 4-20mA

A1,A2,A3,A4 .. wich are DC 0-5V? and wich are 4-20 mA ?

I thinks all are DC 0-5V ...