KC868-A16 expansion

[KP9]

Hello, how can I extend inputs and outputs?
Can I use KC868-HA V2?
   

[admin]

HAv2 also is OK, extender by RS485 cable.
but if you use home assistant, you can add our KC868-A series ESP32 board, connect to router is ok, very easy.

[KP9]

Thank you for a quick replay. You mean to use for example another KC868-A16 board? But then it’s a bit more expensive then HAv2.

[admin]

yes, but if you only add HAv2, output low current, if you want add relay, also need add driver circuit.

[KP9]

Ok I see now. Thank you for your help.