correct device purchase

[ulfgar]

Kindly I need the example of integration of MQTT not esphome

[admin]

now KCS not support receive a RF signal feedback to MQTT message.
it only support send a RF signal by MQTT message.

[ulfgar]

Maybe I expressed myself badly. I have 1 magnetic window sensor 433 I acquire the signal from KCS. With mqtt I would like to create a binary sensor to see when the window is open or closed. Where can I see the code acquired from kcs to be able to create the binary sensor in mqtt?
example:
patform:mqtt
name: "window sensor"
state topic: what do I insert?
playload_on: Receiver detected code in kcs
playload_off: Receiver detected code in kcs

[admin]

now current KCS version can't feedback RF mqtt message to home assistant. you can create IFTTT by KCS, such as when window is OPEN or CLOSED, THEN relayX ON/OFF. we suggest make logical by ESP32 locally, without home assistant, so that if home assistant broken, logical also will work, because it running by hardware locally.