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+--- Forum: B16M (https://www.kincony.com/forum/forumdisplay.php?fid=61)
+--- Thread: RS485 in Home Assistant / B16 / KC868-HAV2 (/showthread.php?tid=8305)
RS485 in Home Assistant / B16 / KC868-HAV2 - petermac - 07-07-2025
Have a fresh B16M with latest firmware, has auto discovered by MQTT in Home Assistant.
Also have a KC868-HAv2 wired as per examples. I can see the button inputs when using the PC software.
I have turned on RS485 in B16M protocol page with the same settings as per the KC868-HAv2.
How do I achieve the next step of having these button inputs active in Home Assistant - please ELI5.
RE: RS485 in Home Assistant / B16 / KC868-HAV2 - admin - 07-07-2025
if you want HAv2 work with B16M directly without home assistant, just download KCS v3 firmware, set the RS485 mode= "MODBUS-HA".
if you want integrate HAv2 to home assistant directly, let home assistant manager HAv2, you can see these video tour :
https://youtu.be/s5Htc43HqAc
https://youtu.be/S679QX6Hc6I
we suggest you let HAv2 work with B16M directly, so that if home assistant broken, also work well.
RE: RS485 in Home Assistant / B16 / KC868-HAV2 - petermac - 07-07-2025
Thankyou;
1) To confirm that HAv2 is working correctly natively in B16M modbus-HA , should I see the input activity on the monitor page? Or how?
2) So to be clear, it's not possible to expose HAv2 inputs to Home Assistant with MQTT?
3) I am happy with the KCS firmware running on the B16M, if I follow the instructions for ESPhome update of the B16M to enable HAv2 inputs in Home Assistant, does this have other impact about the normall B16M MQTT auto-discovery?
RE: RS485 in Home Assistant / B16 / KC868-HAV2 - admin - 07-07-2025
1: HAv2 just work with digital output directly, not seen as INPUT in MONITOR webpage.
2: not support now.
3: ESPHome and KCS v3 firmware can't work at the same time.
maybe in future, we will update KCS v3 firmware , support HAv2 expose to home assistant as BINARY sensor.
RE: RS485 in Home Assistant / B16 / KC868-HAV2 - petermac - 07-07-2025
I see - well that's disappointing as the intended use case isn't possible. Hope you can update KCS in the near future, thankyou.
RE: RS485 in Home Assistant / B16 / KC868-HAV2 - admin - 07-07-2025
ok, will save your suggestion.
RE: RS485 in Home Assistant / B16 / KC868-HAV2 - petermac - 07-07-2025
Instead of using the B16M, what would be the most cost effective, plug and play Kincony device to integrate with HomeAssistant using ESP firmware if I want to persevere with the HAv2 solution?
RE: RS485 in Home Assistant / B16 / KC868-HAV2 - admin - 07-07-2025
if you want HAv2 integrate to home assistant by RS485, it's ok, we have video tour about it.