Is it possible to update the MQTT topics and message structure?

[antti365]

1. I make the control panel in the node-red dashboard and the zigbee2mqtt/bridge/log topic. In my opinion, I’m missing several options, is it possible to add them?
   Something like this ...

• device_renamed
• device_binding
• device_add_group, device_remove_group, device_remove_all_group

2. Also, if possible, I would like to see in the output of the topic zigbee2mqtt/bridge/log "devices": a list of all devices with a battery value for all devices that transmit this parameter.

3. And finally, at the start of the bridge, he could report in a certain topic about the state permit_join and log_level.

I would be very grateful for the help in adding these new options.

Update:
4. Another would be to add the setting of the parameters last_seen and elapsed through mqtt.

[Koenkk]

1. Done
2. This can already be retrieved, subscribe to zigbee2mqtt/+ and parse the battery out of the payloads
3. Done
4. Same as 2

Documentation: https://github.com/Koenkk/zigbee2mqtt.io/blob/dev/information/mqtt_topics_and_message_structure.md

[antti365]

@Koenkk On the first three points everything is fine, thank you very much!
On the fourth point, I probably incorrectly explained - is it possible to make it so that they can be changed via MQTT, as well as, for example, friendly_name, on the fly?

[antti365]

@Koenkk Are we closing this issue or can something be done on the last post?

[Koenkk]

I will look into the last, should be doable.

[Koenkk]

Added last_seen, adding more should be easy, just apply the same changes as in 26bed2d.

[antti365]

@Koenkk Great, thanks, I figured out where to add this. I think this can be closed Issue.

[antti365]

@Koenkk Hurried up, changing last_seen via mqtt works correctly with the Ikea switch, but the disable command is not perceived as a dimmer.
Feb 23 16:15:45 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:15:45 PM Set last_seen to epoch
Feb 23 16:16:14 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:16:14 PM MQTT publish: topic 'zigbee2mqtt/Ikea_Switch', payload '{"battery":74,"linkquality":63,"elapsed":151492,"click":"off","last_seen":1550931374726}'
Feb 23 16:16:20 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:16:20 PM MQTT publish: topic 'zigbee2mqtt/Ikea_Dimmer', payload '{"battery":74,"linkquality":0,"last_seen":1550931380967,"brightness":0,"elapsed":47858}'

Feb 23 16:16:48 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:16:48 PM Set last_seen to ISO_8601
Feb 23 16:16:51 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:16:51 PM MQTT publish: topic 'zigbee2mqtt/Ikea_Switch', payload '{"battery":74,"linkquality":63,"elapsed":36541,"click":"off","last_seen":"2019-02-23T14:16:51.267Z"}'
Feb 23 16:16:54 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:16:54 PM MQTT publish: topic 'zigbee2mqtt/Ikea_Dimmer', payload '{"battery":74,"linkquality":31,"last_seen":"2019-02-23T14:16:54.081Z","brightness":0,"elapsed":17280}'

Feb 23 16:17:01 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:17:01 PM Set last_seen to disable
Feb 23 16:17:05 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:17:05 PM MQTT publish: topic 'zigbee2mqtt/Ikea_Switch', payload '{"battery":74,"linkquality":57,"elapsed":14471,"click":"off"}'
Feb 23 16:17:11 raspberrypi3 npm[32239]: zigbee2mqtt:info 2/23/2019, 4:17:11 PM MQTT publish: topic 'zigbee2mqtt/Ikea_Dimmer', payload '{"battery":74,"linkquality":31,"last_seen":"2019-02-23T14:16:54.081Z","brightness":0,"elapsed":17110}'

[Koenkk]

Can you check with the latest dev branch?

[antti365]

@Koenkk Thank you very much, now everything works as it should!

[antti365]

@Koenkk I tried to change the above files for the elapsed option. It did not work, in the logs the change record appears, in the configuration file the option appears in quotes for some reason (elapsed: ‘false’), and the sensors now send the same value all the time ...
Your help is needed. :)

[Koenkk]

@antti365 please make a PR with the changes you made (doesn't have to be working), we will continue there.