Adding IAQ board in cookbook section (#844)

cookbook/iaq_board.rst

@@ -0,0 +1,63 @@
+.. seo::
+    :description: IAQ (Indoor Air Quality) Board 
+    :image: iaq_board2.jpg
+    :keywords: IAQ Board
+
+IAQ (Indoor Air Quality) Board 
+==============================
+
+.. figure:: images/iaq_board2.jpg
+    :align: center
+    :width: 100.0%
+
+IAQ Board is a DIY device for measuring internal air quality running with esphome. It's quite small and is based on a custom PCB where part of the components are soldered and connected.
+
+Here is what it can measure:
+
+- **Temperature / Humidity / Pressure** 
+- **Air particles PM1, PM2.5, PM10**
+- **Carbon Dioxide with NDIR sensor**
+- **Air Quality Index by EPA, based on 24h average PM2.5 particles**
+- **Ambient light**
+- **Total VOC (volatile organic compound)**
+- **equivalent CO2 (not very correct compared with the NDIR sensor, but it's provided by the VOC sensor)**
+
+On top of that:
+
+- **At least one OLED display to show the data (can have one more on the top of the MCU board)**
+- **three RGB wide angle LEDs with auto brightness. LED1 indicates PM2.5, LED2 - Air quality index, LED3 - CO2.**
+- **auto night dimming of the displays and LEDs (can be disabled)**
+- **MIN/MAX values of Temperature, PM2.5 and CO2, and 24h average PM2.5 value.**
+- **multi function button for selection of the data to show on the display**
+
+ESPHome Configuration
+---------------------
+Full documentation (PCB, Schematic, esphome yaml config) is published here: `https://github.com/nkitanov/iaq_board <https://github.com/nkitanov/iaq_board>`__
+
+YAML configuration is about 700 lines and can be downloaded from here: `iaq_board.yaml <https://github.com/nkitanov/iaq_board/blob/master/firmware/iaq_board.yaml>`__
+
+.. figure:: images/iaq_board1.jpg
+    :align: center
+    :width: 100.0%
+
+.. raw:: html
+
+    <iframe width="560" height="315" src="https://www.youtube.com/embed/X75OGs2TTT8" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+
+See Also
+--------
+
+- :doc:`/devices/nodemcu_esp8266`
+- :doc:`/components/display/ssd1306`
+- :doc:`/components/sensor/bme280`
+- :doc:`/components/sensor/pmsx003`
+- :doc:`/components/sensor/mhz19`
+- :doc:`/components/sensor/sgp30`
+- :doc:`/components/sensor/tsl2561`
+- :doc:`/components/binary_sensor/gpio`
+- :doc:`/components/sensor/template`
+- :doc:`/components/light/neopixelbus`
+- :doc:`/guides/automations`
+- :doc:`/components/i2c`
+- :doc:`/components/uart`
+- :ghedit:`Edit`

index.rst

@@ -393,6 +393,7 @@ Cookbook
     Teckin SB50, cookbook/teckin_sb50, teckin_sb50.jpg
     Sonoff light switch options, cookbook/sonoff-light-switch, light_switch.png
     ESP32 Water Leak Detector, cookbook/leak-detector-m5stickC, leak-detector-m5stickC_main_index.jpg
+    IAQ (Indoor Air Quality) Board, cookbook/iaq_board, iaq_board2.jpg
 
 Do you have other awesome automations or cool setups? Please feel free to add them to the
 documentation for others to copy. See :doc:`Contributing </guides/contributing>`.