Home-AssistantConfig/config/sensor/systemmonitor.yaml

- platform: template
  sensors:
    last_boot_templated:
      entity_id: []
      value_template: >-
        {%- set slb = states.sensor.last_boot.state.split(' ') -%}
        {%- set count = slb | length -%}
        {%- set hms = slb[count - 1] -%}
        {%- set hms_trimmed = hms.split('.')[0] -%}
        {%- set hms_split = hms_trimmed.split(':') -%}
        {%- set hours = hms_split[0] | int -%}
        {%- set minutes = hms_split[1] | int -%}
        {%- set seconds = hms_split[2] | int -%}

        {%- if count == 3 -%}
          {{ slb[0] ~ ' ' ~ slb[1] ~ ' ' }}
        {%- endif -%}
        {%- if hours > 0 -%}
          {%- if hours == 1 -%}
            1 hour
          {%- else -%}
            {{ hours }} hours
          {%- endif -%}
        {%- endif -%}
        {%- if minutes > 0 -%}
          {%- if hours > 0 -%}
            {{ ', ' }}
          {%- endif -%}
          {%- if minutes == 1 -%}
            1 minute
          {%- else -%}
            {{ minutes }} minutes
          {%- endif -%}
        {%- endif -%}
        {%- if seconds > 0 -%}
          {%- if hours > 0 or minutes > 0 -%}
            {{ ', ' }}
          {%- endif -%}
          {%- if seconds == 1 -%}
            1 second
          {%- else -%}
            {{ seconds }} seconds
          {%- endif -%}
        {%- endif -%}

- platform: rest
  scan_interval: 86400
  resource: https://api.ipify.org/
  name: External IP
  value_template: '{{ value }}'

#############################################################################################################
###  This part of the automation is hidden due to the External IP address being exposed  ##
# - platform: template
  # sensors:
    # ipchange:
      # entity_id: sensor.external_ip
      # value_template: "{%- if is_state('sensor.external_ip', 'xxx.xxx.xxx.xxx') -%} False {%- elif is_state('sensor.external_ip', 'unknown' ) -%} False {%- else -%} True {%- endif %}"
#############################################################################################################