finish the device settings section of the docs

Author: gigapod

docs/assets/img/settings-device-page.png

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+# IoT Node - LoRaWAN  - Device Settings
+
+The device settings menu of the system presents the property pages for each device connected to the IoT Node - LoRaWAN board. 
+
+The contents of the Device Settings page is dynamic and changes based on the devices connected to the board. The following is an example of a device settings listing page:
+
+![Device List](assets/img/settings_device_list.png)
+
+In this page, the devices ***MAX17948*** and ***BME280*** are listed. Selected an individual device entry will bring up the property page for that device.
+
+Below is the property page for the ***BME280** device:
+
+![Device Page](assets/img/settings-device-page.png)
+
+While the contents of a specific device settings page is dependent on the particular device, each page as a common set of operations.
+
+## Parameters
+
+All devices have a set of parameters, as shown in the above device page for the BME280 device. 
+
+Parameters can be enabled/disabled, controlling which values are output - logged to the Serial Console and sent to the LoRaWAN. 
+
+Each device allows the enabling/disabling of individual parameters, but functions are also provided to enable or disable all parameters with one operation. 
+
+When a parameter is disabled, it is highlighted on the devices settings page.
+
+### LoRaWAN Sent Values
+
+Not all parameters are sent via the LoRaWAN - only those that *make sense* for the limitations of the LoRaWAN system. To determine which values are sent, consult the Advanced section of this documentation, or enable verbose messaging and display a devices settings page. The format of this is shown in the settings page of the ENS160 device later on this page. 
+
+## Properties
+
+If a device as available properties, these are listed on the devices settings page. The following page shows properties and parameter settings for the ***ENS160*** device.
+
+![Device ENS160](assets/img/settings_device_ens160.png)
+
+The properties/settings behave just like any other setting within the system. Once set, if a device with the same name/type is loaded, the saved settings are applied at startup. 
+

docs/assets/img/settings_device_ens160.png

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-# IoT Node - LoRaWAN Settings
+# IoT Node - LoRaWAN  - Settings
 
 The following sections provide an overview of the available settings and functions within the settings menu of the IoT Node - LoRaWAN firmware.