finished up getting started

Author: gigapod

docs/assets/img/digi-device-messages.png

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+# Getting Started
+
+The SparkFun IoT Node - LoRaWAN firmware is designed to enable rapid setup and connection to the Digi LoRaWAN network or the Digi X-ON system. The SparkFun IoT Node - LoRaWAN board is pre-provisioned with the necessary keys to connect to Digi X-ON, and the default XON Application ID for the demo application is set as default within the IOT Node - LoRaWAN firmware. From the board standpoint, once the Digi module is registered with a XON account, all that is required is to connect the antenna, a supported qwiic sensor and apply power to the board. 
+
+## Setting up your Digi X-ON account and Gateway
+
+To get started, you'll need to have access to an HX15 Gateway (NA or EU version) and a Digi Account. If you've purchased the kit, a Gateway will be included. Digi has a great ["Getting Started" video here](https://youtu.be/nrmTp8ZYa6c?si=9FnklldcUvFMTXLr). The kit also has a welcome card included that contains a QR Code. Scanning this code will take you to a URL where you can register for an account.
+
+## Registering the IoT Node - LoRaWAN 
+
+To provision a IoT Node - LoRaWAN device, go to the following link, log in if necessary, and scan the Data Matrix on the XBee Module using the [Digi Scan page](https://scan-us1.haxiot.com/). 
+
+Note - if the DataMatrix scan is out-of-focus and unable to resolve, wait a few seconds and a manual entry prompt will appear on Digi Scan. From here you manually enter the modules serial number. 
+
+After you device is registered with your account, it will be listed in the device section of you XON account.
+
+![XON Devices](assets/img/digi-xon-devices.png)
+
+Device listing
+
+![XON A Device](assets/img/digi-xon-a-device.png)
+
+From the specific device page, the messages sent by the device are listed. The ***Data*** column contains the message data.
+
+![XON Messages](assets/img/digi-device-messages.png)
+
+With the highlighted corresponding sent messages reported on the output of the IoT Node board:
+
+![Node Messages](assets/img/node-sent-messages.png)
+
+## Troubleshooting and Notes
+
+### If the Node Board Fails to Connect
+
+* Make sure your Digi XON gateway is powered on, connected and connected to a network
+* Verify that the LoRa Antenna is property connected to the IOT Node - LoRaWAN board
+
+### Application ID or Key Error message printed at startup
+
+While not often, this has been seen with some new boards. Restarting the board a couple of times often resoles this issue.
+
+If it persists, verify the values being used via the settings menu. If need be, reset the board via the menu system to clear out any invalid value.
+
+Note: The Application and Network Key values are ***secret***, and as such stored securely on the device and not visible once entered.  
+
+### Notes
+
+* Sometimes the first data message fails to send on setup. This is only after initial setup, with following messages successfully sent.