Schematic

[safeermakar@gmail.com]

I have not, shall I download? Please can you share the exact link to download KCS firmware for KC868-AK

[admin]

no, not to use "KCS", can you take a screen photo of your AK's setting and H32B Pro's setting.

[safeermakar@gmail.com]

Please find attached screenshots for both H32B pro and KC868-AK

[KinCony Support]

How to connect AK with H32B-Pro via RS485, I tried A-A & B-B, but did not work, through RS232 connection it works

Connect like this ,you can control H32B PRO via RS485     
The picture i shared is ALL on and ALL off control via RS485
       

[KinCony Support]

Helli, is there any schematic between h32b and kc868-ak? All i see is with h32b pro, is there any with h32b?

The picture I shared is KC868-AK control KC868-H32B
   

[safeermakar@gmail.com]

How to connect AK with H32B-Pro via RS485, I tried A-A & B-B, but did not work, through RS232 connection it works

Connect like this ,you can control H32B PRO via RS485     
The picture i shared is ALL on and ALL off control via RS485

My connection is exactly the same - still it does not work

[admin]

ok, i am on whataspp now.

[safeermakar@gmail.com]

Thanks for your support over WhatsApp, it works now after a firmware upgrade

[admin]

ok, good.

[internetdunyam]

just use KC868-H32B's RS232 connect to KC868-AK's RS232 port.
RXD - RXD , TXD - TXD , GND - GND.

thank you