This repository contains the programs that we will be going over in the workshops at IoT Fuse 2020:

Building IoT Applications with MicroPython and Digi XBee 3 Cellular Building IoT Applications with MicroPython and AWS or Azure

Keep an eye on this repository for those attending the workshops as I will make updates here and also be posting code here for the workshop.

If you have questions about the following prior to the workshops, you can reach me at:

eugene.fodor@digi.com

You will need to acquire the following kits:

A Windows 10 laptop computer (or equivalent) with a USB 3.0 port. USB 2.0 may not supply sufficient current. Mac/Linux should also work, but I did not test everything on those platforms.

Digi XBee® 3 Cellular LTE Cat-1 Development Kit (available through Digi-Key: https://www.digikey.com/product-detail/en/digi/XK3-C-A1-UT-U/602-2212-ND/8109034 Silicon Labs Thunderboard Sense 2 IoT Kit (available through Digi-Key: https://www.digikey.com/product-detail/en/silicon-labs/SLTB004A/336-4166-ND/7689215 Murata Electronics CR2032 Battery (optional – available through Digi-Key: https://www.digikey.com/product-detail/en/murata-electronics/CR2032/490-18646-%20ND/9558425

It is recommended that you have Python 3 installed to run the update script for the XBee 3 Cellular.

https://www.python.org/downloads/

You will want to install the following programs on your computer if you want to follow along:

Both workshops:

XCTU Latest XBee Configuration Utility version 6.5.0+

https://www.digi.com/products/embedded-systems/digi-xbee/digi-xbee-tools/xctu

Pycharm version 2019.3.x (2019.3.4). Do not install the latest version 2020 as it is incompatible with the Pycharm plugin.

https://www.jetbrains.com/pycharm/download/other.html

Digi XBee 3 Cellular MicroPython Pycharm Plugin

https://plugins.jetbrains.com/plugin/12445-xbee-%20micropython

Git (recommended)

https://www.git.org/downloads/

Create the following accounts:

Digi Remote Manager Free Developer Account for 5 Devices https://myacct.digi.com

Workshop 2 only: https://aws.amazon.com/free/ https://azure.microsoft.com/en-us/free/ Note that if you have a corporate account, you may need to use a different personal e-mail (e.g. gmail) to sign up for a free account.

Please update your XBee to the latest firmware as described in the next section.

IMPORTANT!: If you are running a version older than 31010 (e.g. 3100A, 3100B, etc.), you will need to first update your Digi XBee with XCTU to version 3100F. This is a special version that updates the memory architecture and installs 31010. After you update to 31010, you can proceed running the update script to install 31015.

Upgrade your Digi XBee 3 Cellular Cat 1 AT&T to the latest firmware 31015 it is not already on it. If you are using a different Digi XBee 3 Cellular module follow the manual for that module.

1. Follow setup for your XBee 3 Cellular device and get it on the cellular network and add the device to your Digi Remote Manager account. You can skip the firmware upgrade steps as the script in step 2 will do that.

2. Start a cmd or shell script and change to the directory of the update script iotfusedigixbee2020/update-xb3c1att

3. The script takes about 15-20 minutes to run assuming no errors. Run the python script from the update-xb3c1att.py directly from the update-xb3c1att directory as follows:

   python update-xb3c1att.py port imei username password
   

   For example, on Windows run as:

   python update-xb3c1att.py COM28 123456789012345 jdoe password
   

   or on Mac/Linux as:

   python update-xb3c1att.py /dev/ttyS27 123456789012345 jdoe password
   

   If you get an error you can rerun the script without issue. It will attempt to pick up where it left off.

   Troubleshooting Tips: Did you see the important note at the top regarding versions earlier than 31010 and using XCTU first before running the script? Make sure your cellular signal is strong? Move the device closer to a window if needed to get better line-of-sight. Did you run the script for the correct directory? Did you install the required packages (xmodem, pyserial)? Did you add your Digi XBee 3 Cellular to your Digi Remote Manager account?

• Eugene Fodor - Initial work - iotfusedigixbee2020

This project is licensed under the MIT License - see the LICENSE.md file for details

• Thanks to all of my team members Matthew Beaudoin, Chris Evans, Kurt Erickson, Scott Kilau, Travis Lubbers, and Mike Wadsten for their contributions and support.