Schematic

[Yazaww]

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

[admin]

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

[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

[admin]

here is diagram: https://www.kincony.com/forum/showthread.php?tid=2495
you can take a photo, how you wire.

[safeermakar@gmail.com]

here is diagram: https://www.kincony.com/forum/showthread.php?tid=2495
you can take a photo, how you wire.

My connection is same as in your drawing, still not working, please find attched picture for quick reference

[admin]

do you have set the H32B Pro RS485 address=1 and baud=9600bps?
open web browser with your H32B Pro's ethernet ip address, check RS485 setting.

[safeermakar@gmail.com]

Yes I Did, by default RS485 ID was in 1 and baud rate 9600. I also try with ID 2 both device with 9600 baudrate, still did not work

[admin]

do you have download some firmware to KC868-AK's ESP32?

[safeermakar@gmail.com]

No i did not, should i update firmware, if yes please share the link on how to do

Existing Versions are as below
H32B Pro Firmware Ver: H32B_Pro_V1.13
KC868-AK Software Ver: v1.0.6

[admin]

do you have downloaded "KCS" firmware for KC868-AK?