MQTT state topic for "permit_join"

[ophilips]

I'm trying to create an easier integration for zigbee2mqtt in home assistant as "MQTT lock". It also works without customization in homekit and is quite easy to control and setup because it is just one entry in your configuration file. Everything works so far https://gist.github.com/ophilips/8146ff802119bf6eb8ae5915851ad6d4 but sometimes it switches to the wrong state after a restart. I tried to set the retain flag and set the state_topic to the same topic as command_topic but it would be more reliable to get the real state.

[Koenkk]

I propose that zigbee2mqtt published it's config to zigbee2mqtt/bridge/config with a payload like

{
  "log_level": "info",
  "permit_join": false
}

What do you think?

[ophilips]

That would be perfect I think. Then we could extract and use all values with a simple template like '{{value_json.permit_join}}'

[Koenkk]

Implemented!

[ophilips]

Hey Koen, I just checked it with the latest development build and found that the config gets written to
'zigbee2mqtt/zigbee2mqtt/bridge/config' and not 'zigbee2mqtt/bridge/config' as you wrote earlier.

MQTT publish: topic 'zigbee2mqtt/zigbee2mqtt/bridge/config', payload '{"log_level":"info","permit_join":false}'

Otherwise it was working as a MQTT Sensor

[andreasbrett]

I can confirm. I just pulled the latest code and for me this info is posted to "zigbee/zigbee/bridge/config" (I use a shorter MQTT base topic).

zigbee2mqtt/lib/extension/bridgeConfig.js

Line 143 in 266e3f9

const topic = `${settings.get().mqtt.base_topic}/bridge/config`;

Should be the issue.

[Koenkk]

My bad! Should be fixed now.

[andreasbrett]

It is. Works like a charm now!

[ophilips]

Perfect. It's working now. I also updated my gist to control and see the the status of zigbee2mqtt in one single config entry: https://gist.github.com/ophilips/8146ff802119bf6eb8ae5915851ad6d4

[Koenkk]

Great, can this be closed?

[ophilips]

Ok. You can close the issue now. The only remaining thing is that home assistant template {{value_json.permit_join}} gives a True/False with capital letters instead of true/false so that publish topic and subscribe topic don‘t match. I had to use either {{value_json.permit_join|lower}} to force lowercase or send True/False. But that has nothing to do with your code.

[Koenkk]

ok, thanks!