10-27-2023, 06:05 PM
Hi,
Do you plan to implement MQTT LWT/availability topics in your firmware?
This is actually crucial functionality in IoT for the broker to be informed of disconnections and state changes on reconnection made by other means when the device is offline.
Say you have your board in Home Assistant, you lose connection and then change the state of a relay with a physical switch. On reconnection Home Assistant doesn’t know about the state change and displays the previously set one until the state changes again and appropriate message gets sent to the MQTT broker.
As a bonus, with LWT implemented, your broker knows the availability topic stopped getting messages and displays the device as offline.
I’m pretty surprised this wasn’t implemented from the beginning.
Anyway, thanks for the otherwise nice product. Documentation is somewhat lacking, but I eventually managed to connect my KC868-A8 to Home Assistant with your KCS firmware. Unfortunately, I can’t deploy it in my scenario without LWT.
I refuse to put Tasmota on the board. Tried it and it was flakey, and their support is user hostile. ESPHome is also not an option for me.
Do you plan to implement MQTT LWT/availability topics in your firmware?
This is actually crucial functionality in IoT for the broker to be informed of disconnections and state changes on reconnection made by other means when the device is offline.
Say you have your board in Home Assistant, you lose connection and then change the state of a relay with a physical switch. On reconnection Home Assistant doesn’t know about the state change and displays the previously set one until the state changes again and appropriate message gets sent to the MQTT broker.
As a bonus, with LWT implemented, your broker knows the availability topic stopped getting messages and displays the device as offline.
I’m pretty surprised this wasn’t implemented from the beginning.
Anyway, thanks for the otherwise nice product. Documentation is somewhat lacking, but I eventually managed to connect my KC868-A8 to Home Assistant with your KCS firmware. Unfortunately, I can’t deploy it in my scenario without LWT.
I refuse to put Tasmota on the board. Tried it and it was flakey, and their support is user hostile. ESPHome is also not an option for me.