Add EHMTX to cookbook (#2369)

cookbook/ehmtx.rst

@@ -0,0 +1,43 @@
+ehmtx a matrix status display
+=============================
+
+.. seo::
+    :description: A simple DIY status display, build with a flexible 8x32 RGB LED panel.
+    :image: ehmtx.jpg
+    :keywords: DIY matrix display RGB
+
+Based on a cheap 8x32 RGB matrix you can build flexible status displays for all kind of informations. It is expandable with sensors etc.
+
+.. figure:: images/ehmtx.jpg
+    :align: center
+    :width: 40%
+
+
+Introduction
+------------
+
+Based a on a 8x32 RGB flexible matrix it displays a clock, the date and up to 16 other screens provided by home assistant. 
+Each screen (value/text) can be associated with a 8x8 bit RGB icon or gif animation (see installation). 
+The values/text can be updated or deleted from the display queue. Each screen has a lifetime, if not refreshed in its lifetime it will disapear.
+
+ESPHome Configuration
+---------------------
+Documentation:
+
+- `Source for the component on github <https://github.com/lubeda/EsphoMaTrix>`__
+- `Discussion in the homeassistant community <https://community.home-assistant.io/t/esphomatrix-a-simple-clock-status-display/425325>`__
+- `Second discussion in the homeassistant community <https://community.home-assistant.io/t/a-simple-diy-status-display-with-an-8x32-rgb-led/379051>`__
+- `Optional notify component <https://github.com/lubeda/EHMTX_custom_component>`__
+
+`sample YAML configuration for ESP32 <https://raw.githubusercontent.com/lubeda/EsphoMaTrix/main/ehmtx32.yaml>`__
+
+Sample video:
+
+.. raw:: html
+
+    <iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/ZyaFj7ArIdY" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+
+
+See Also
+--------
+- :ghedit:`Edit`

index.rst

@@ -786,6 +786,7 @@ Cookbook
     Ilonda Wifi Smart Fish Feeder, cookbook/ilonda-wifi-smart-fish-feeder, ilonda-wifi-smart-fish-feeder-cookbook.jpg
     AirGradient DIY Air Quality Sensor, cookbook/air_gradient_diy_air_quality_sensor, air_gradient_diy_air_quality_sensor.jpg                                               
     Geiger Counter, cookbook/geiger-counter, radiationD-v1-1-cajoe_small.jpg
+    EHMTX a matrix status/text display, cookbook/ehmtx, ehmtx.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>`.