Updated documentation

README.md

@@ -79,8 +79,14 @@ sensor:
 Once the component is running, it will add the following entities to Home Assistant
 ![Entities](./entities.png)
 
+## Status Entities
+Apart from the inverter-parameters, it will also add status entities to view the status of the solarman component.
+![Component-status](./component_status.png)
+
 ## Energy Dashboard
 The entities includes the device classes to enable it to be added to the [Energy Dashboard](https://www.home-assistant.io/blog/2021/08/04/home-energy-management/) introduced with Home Assistant Core 2021.8.
 
 To configure the energy dashboard with the infirmation provided by this component,  see [configuring energy dashboard](energy.md)
 
+## Customization
+This integration was tested agains the DEYE 5kW inverter, and it is possible that the parameter-definitions for other inverters may differ. If you want to try your hand at it, refer to [customizing parameters.yaml](customization.md)

customization.md

@@ -0,0 +1,73 @@
+# Customizing 
+
+The hart of this component is the parameter-definition file *parameters.yaml*. By changing the file, the behaviour is totally changed.
+
+It has two sections:
+
+## 1. Requests
+This section defines the requests that should be issued to the logger each time the component does a parameter update. The list below was created for a DEYE 5kW inverter, and could be customized for other models that are not 100% compatible with this inverter.
+
+~~~ YAML
+requests:
+  - start: 0x0003
+    end:  0x000E
+  - start: 0x003B
+    end: 0x0070
+  - start: 0x0096
+    end: 0x00C3
+  - start: 0x00f4
+    end: 0x00f8
+
+~~~
+
+This block specifies that the component should issue three requests to the logger, the first one requesting parameters 0x0003 up to 0x000E, then a second request for parmeters 0x003B up to 0x0070, and the last for parameters 0x000f4 up to 0x00f8.
+
+## 2. Parameters
+This section defines the induvidual parameter definitions. For example:
+
+~~~ YAML
+parameters:
+ - group: solar
+   items: 
+    - name: "PV1 Power"
+      class: "power"
+      uom: "W"
+      scale: 1
+      rule: 1
+      registers: [0x00BA]
+      icon: 'mdi:solar-power'
+~~~
+
+### group
+The group just groups parameters that belong together. The induvidual parameter-items has to be placed in a group. The *items* parameters contains the parameter definitions that belong in the group.
+
+### Parameter-item
+
+(see) https://developers.home-assistant.io/docs/core/entity/
+
+|field|description|
+|:----------:|----------|
+|name|The *name* field of the home-assistant entity #|
+|class|The *class* field of the home-assistant entity #|
+|uom|The *unit_of_measurement* field of the home-assistant entity #|
+|icon|The *icon* field of the home-assistant entity #|
+|| **The fields below define how the value from the logger is parsed** |
+|scale|Scaling factor for the value read from the logger|
+|rule|Method to interpret the data from the logger ##|
+|registers|Array of register fields that comprises the value. If the value is placed in a number of registers, this  array will contain more than one item.|
+|lookup|Defines a key-value pair for values where an integer maps to a string field|
+
+
+\# (see) https://developers.home-assistant.io/docs/core/entity/
+
+\## The rule field specifies how to interpret the binary data. 
+
+1. unsigned 16-bit value
+2. signed 16 bit value
+3. unsigned 32 bit value
+4. signed 32 bit value
+5. ascii value
+6. bit field
+
+
+