You can find the entire repo here.

config/sensor/MQTT.yaml

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+###################################################
+## Various MQTT sensors
+###################################################
+
+- platform: mqtt
+  state_topic: "ifttt/rachio/watering_time"
+  name: "Rachio_watering_time"
+
+- platform: mqtt
+  state_topic: "dash/medicine/medicine_time"
+  name: "Medicine time"

config/sensor/date_time.yaml

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+- platform: time_date
+  display_options:
+    - 'time'
+    - 'date'

config/sensor/hass_stats.yaml

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+###################################################
+## * Special HASS related sensors - Thanks @torn8o
+###################################################
+
+- platform: version
+  name: HA Installed Version
+  scan_interval: 86400
+
+- platform: command_line
+  name: "HA Uptime"
+  command: echo "$(($(date +%s) - $(date -d "$(head -n1 /config/home-assistant.log | cut -d' ' -f-2)" +%s)))"
+  scan_interval: 720
+  value_template: >-
+    {% set uptime = value | int %}
+    {% set seconds = uptime % 60 %}
+    {% set minutes = ((uptime % 3600) / 60) | int %}
+    {% set hours = ((uptime % 86400) / 3600) | int %}
+    {% set days = (uptime / 86400) | int %}
+    {%- if days > 0 -%}
+      {%- if days == 1 -%}
+        1 day
+      {%- else -%}
+        {{ days }} days
+      {%- endif -%}
+      {{ ', ' }}
+    {%- endif -%}
+    {%- if hours > 0 -%}
+      {%- if hours == 1 -%}
+        1 hour
+      {%- else -%}
+        {{ hours }} hours
+      {%- endif -%}
+      {{ ', ' }}
+    {%- endif -%}
+    {%- if minutes > 0 -%}
+      {%- if minutes == 1 -%}
+        1 minute
+      {%- else -%}
+        {{ minutes }} minutes
+      {%- endif -%}
+    {%- endif -%}

config/sensor/nest.yaml

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+###################################################
+## * [Nest Thermostats](http://amzn.to/2eAhB1k)
+# @CCOSTAN
+# Original Repo : https://github.com/CCOSTAN/Home-AssistantConfig
+###################################################
+
+- platform: nest
+  monitored_conditions:
+#     - 'temperature'
+#     - 'target'
+     - 'humidity'
+#     - 'operation_mode'
+#     - 'last_connection'
+#     - 'co_status'
+#     - 'smoke_status'
+
+- platform: template
+  sensors:
+     upstairs_away_mode:
+       value_template: "{{ is_state_attr('climate.upstairs', 'away_mode', 'on') }}"
+
+- platform: template
+  sensors:
+     downstairs_away_mode:
+       value_template: "{{ is_state_attr('climate.downstairs', 'away_mode', 'on') }}"

config/sensor/speedtest.yaml

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+- platform: speedtest
+  minute: 30
+  hour:
+    - 0
+    - 6
+    - 12
+    - 18
+  monitored_conditions:
+    - download
+    - upload

config/sensor/systemmonitor.yaml

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+- platform: template
+  sensors:
+    since_last_boot_templated:
+      value_template: >-
+        {%- set slb = states.sensor.since_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: http://ip.jsontest.com
+  name: External IP
+  value_template: '{{ value_json.ip }}'
+
+#############################################################################################################
+###  This part of the automation is hidden due to the IP address 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 %}"
+#############################################################################################################

config/sensor/weather.yaml

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+- platform: darksky
+  api_key: !secret forecast_key
+  monitored_conditions:
+#    - summary
+#    - precip_type
+    - precip_intensity
+    - precip_intensity_max
+    - temperature
+#    - dew_point
+    - wind_speed
+#    - wind_bearing
+    - cloud_cover
+    - humidity
+#    - nearest_storm_distance
+    - minutely_summary
+#    - pressure
+#    - visibility
+#    - ozone
+    - uv_index