EinkAnalog/blueprint/ead_update.yaml

blueprint:
  name: E-Paper Analog Display Updater
  description: Update the E-Paper Analog Display value over MQTT
  domain: automation
  input:
    sensor:
      name: Sensor
      description: The sensor to read the value from
      selector:
        entity:
          domain: sensor
    topic_name:
      name: Topic Name
      description: The name of the MQTT topic to publish to, needs to be unique
      selector:
        text:
    display_name:
      name: Display Name
      description: The name of the value on the display, keep limited to about 16 characters
      selector:
        text:
    display_value_min:
      name: Display Value Min
      description: The minimum value to display
      default: 1
      selector:
        number:
          min: -10000
          max: 10000
    display_value_max:
      name: Display Value Max
      description: The maximum value to display
      default: 100
      selector:
        number:
          min: -10000
          max: 10000
    display_segments:
      name: Amount of segments on face
      description: How many values to display between the min and max
      default: 10
      selector:
        number:
          min: 1
          max: 20

variables:
  sensor: !input sensor
  topic_name: !input topic_name
  display_name: !input display_name
  display_value_min: !input display_value_min
  display_value_max: !input display_value_max
  display_unit: "{{ state_attr(sensor, 'unit_of_measurement') }}"
  display_segments: !input display_segments

trigger:
  - platform: state
    entity_id: !input sensor

action:
  - service: mqtt.publish
    data:
      topic_template: "{{ 'homeassistant/ead/' ~ topic_name }}"
      qos: "0"
      retain: true
      payload_template: '{{ ''{ "name":"'' ~ display_name ~ ''", "val":"'' ~  states(sensor) ~ ''", "unit":"'' ~ display_unit ~ ''", "min":"'' ~ display_value_min ~ ''", "max":"'' ~ display_value_max ~ ''", "segm":"'' ~ display_segments ~ ''"}'' }}'