Add docs HM3301 (#529)

* Add docs HM3301

* added image hm3301

* wrong image hm3301

* fixed image name

components/sensor/hm3301.rst

@@ -0,0 +1,44 @@
+The Grove - Laser PM2.5 Sensor (HM3301)
+=======================================
+
+.. seo::
+    :description: Instructions for setting up HM3301 Particulate matter sensor
+    :image: hm3301.png
+
+The ``HM3301`` sensor platform allows you to use your HM3301 particulate matter sensor
+(`more info <http://wiki.seeedstudio.com/Grove-Laser_PM2.5_Sensor-HM3301>`__)
+sensors with ESPHome.
+
+The sensor communicate with board by ``I2C`` protocol, and requires 3.3v.
+
+.. code-block:: yaml
+
+    # Example configuration entry
+    i2c:
+
+    sensor:
+      - platform: hm3301
+        pm_1_0:
+          name: "PM1.0"
+        pm_2_5:
+          name: "PM2.5"
+        pm_10_0:
+          name: "PM10.0"
+
+Configuration variables:
+------------------------
+
+- **pm_1_0** (*Optional*): Use the concentration of particulates of size less than 1.0µm in µg per cubic meter.
+  All options from :ref:`Sensor <config-sensor>`.
+- **pm_2_5** (*Optional*): Use the concentration of particulates of size less than 2.5µm in µg per cubic meter.
+  All options from :ref:`Sensor <config-sensor>`.
+- **pm_10_0** (*Optional*): Use the concentration of particulates of size less than 10.0µm in µg per cubic meter.
+  All options from :ref:`Sensor <config-sensor>`.
+
+See Also
+--------
+
+- :doc:`/components/sensor/sds011`
+- :ref:`sensor-filters`
+- :apiref:`hm3301/hm3301.h`
+- :ghedit:`Edit`

index.rst

@@ -123,6 +123,7 @@ Sensor Components
     INA3221, components/sensor/ina3221, ina3221.jpg
     Integration, components/sensor/integration, sigma.svg
     HTU21D, components/sensor/htu21d, htu21d.jpg
+    HM3301, components/sensor/hm3301, hm3301.jpg
     MAX31855, components/sensor/max31855, max31855.jpg
     MAX31865, components/sensor/max31865, max31865.jpg
     MAX6675, components/sensor/max6675, max6675.jpg