Add current layer and total layer metrics

[JumpMaster]

Hi,

Great plugin and I am having no issues with it! I would like to be able to see the current and total layers. It would be useful to be able to create an alert in HA before a scheduled filament change for example.

Thanks for your great work!
Kev

[cmroche]

It's an interesting idea. I'll have to check if the info is something I can pull form Octoprint though. Probably in a few weeks as I am a bit busy at the moment.

Thanks for the suggestion.

[charredchar]

I've been attempting to make a version of this myself with what is in Home Assistant and OctoPrint MQTT by default ... and it has not been easy. OP MQTT will report the current and total layers via DisplayCurrentLayer plugin if installed, I've been able to use it to notify me on layer number. It should be doable.

[cmroche]

If the data is already present, then it only requires discovery topics to create the correct sensors.

[cmroche]

@charredchar Would you be willing to submit an MR with the feature?

[edekeijzer]

I've been attempting to make a version of this myself with what is in Home Assistant and OctoPrint MQTT by default ... and it has not been easy. OP MQTT will report the current and total layers via DisplayCurrentLayer plugin if installed, I've been able to use it to notify me on layer number. It should be doable.

Can you provide a link to the specific plugin? I've looked and found nothing with that exact name. The LayerDisplay and DisplayLayerProgress plugins both do not do anything MQTT related.

[charredchar]

It was actually something I did completely within Home Assistant.

configuration.yaml

sensor:
  - platform: mqtt
    name: "OctoPrint DispalyLayer"
    state_topic: "octoPrint/event/DisplayLayerProgress_layerChanged"
    value_template: "{{ value_json.currentLayer }}"

  - platform: mqtt
    name: "OctoPrint TotalLayers"
    state_topic: "octoPrint/event/DisplayLayerProgress_layerChanged"
    value_template: "{{ value_json.totalLayer }}"

  - platform: template
    sensors:
        octoprint_layers:
            friendly_name: "OctoPrint Layers"
            value_template: "{{  states( 'sensor.octoprint_dispalylayer') ~ ' of ' ~ states( 'sensor.octoprint_totallayers') }}"