PowerShell: A Language for the Internet of Things #ATLPUG

ATLANTA POWERSHELL
USERS GROUP #ATLPUG
Powershell: A Language
for the Internet of Things

AGENGA
•High-level Overview of IoT and Current Status
• Microsoft IoT Platforms
• Windows 10 IoT Core
• Azure IoT Suite
• PowerShell in Windows IoT Core
• Using PowerShell to Manage an Enterprise IoT Deployment with
Azure IoT Suite

QUICK STRAW POLL
1. How many people here would consider themselves a Maker?
2. What about an Embedded Systems Engineer?
3. An IoT Architect or Developer?
4. Who here has played around with a Raspberry Pi?
5. Arduino?
6. Intel Edison? Beaglebone?
7. Any one here who has direct experience developing applications
using ATmega/PIC-type microcontrollers or FPGAs?
8. Are there any folks with Data Analytics backgrounds?

WHAT IS THE INTERNET OF
THINGS?
Multiple Viewpoints
 Business View
 The ability to gain greater insight into a physical aspect of the business that was previously difficult to
measure and/or analyze.
 IoT and BigData – 2 sides of the same coin.
 Technical View
 The use of generically developed systems for the purpose of data collection and analysis. Not necessarily
purpose-built.
 Devices connected through ubiquitous means (i.e. WiFi, 3G/4G, BLE, LoRa, etc.).

WINDOWS 10 IOT CORE
Background
• Designed for for ARM, x86 and x64 that enables building low cost, small footprint
devices that support Universal Apps.
• Target use case is endpoints with heavy “edge compute” needs or field deployable
IoT Gateways.
• Starting to gain traction with various other single-board computers that
traditionally ran Linux.

BASIC WINDOWS 10 IOT CORE
SETUP
How to install…
https://developer.microsoft.com/en-
us/windows/iot/GetStarted
1. Via Windows 10 IoT Core Dashboard
or using NOOBs
2. If deployed via IoT Core Dashboard –
 Configure Hostname, Wireless, and
Administrator password via dashboard
3. If deployed via NOOBs –
 All configuration completed via hard-wired
Ethernet connection and using WinRM / Remote
PowerShell

NOOBS SETUP (YAY! POWERSHELL)
1. Validate WinRM is running on your machine: net start WinRM
2. Add Windows 10 IoT Core to Trusted Hosts:
Set-Item WSMan:localhostClientTrustedHosts -Value <IP Address / Hostname>
3. Connect to Remote PowerShell Session on Windows IoT Core:
Enter-PSSession -ComputerName <IP/Hostname> -Credential
“<IP/Hostname>Administrator”
4. Complete Configuration:
net user Administrator [new password]
setcomputername
5. Or – Connect to Web Console: http://<IP address>:8080

NOW… DOWN TO BUSINESS
Canned examples via IoT Core Dashboard

BUT CANNED IS BORING…
RaspberryPi has extensive GPIO interface for connecting external
sensors and add-on boards (hats/shields).

BUT, JUST LIKE AMEX… POWERSHELL
NOT TAKEN HERE
No official PowerShell Commandlets for interfacing
with GPIO interface.
APIs exists for C#, VB, C++, Javascript, Node.js, and
even Python.
But wait… there’s hope….

POWERSHELL GPIO
COMMANDLETS
Current support for:
 Get-GpioPin <pin-number>
 Set-GpioPinDriveMode <pin-number> <pin-function>
 Set-GpioPinValue <pin-number>
NOTE: Get-GpioPin does not read a pin and return a value, it
returns a GpioPin object. An accessor function called Read() is
available in the GpioPin class to read the High or Low value of the
pin’s state.

EXAMPLE: BLINKY (AKA “IOT
HELLOWORLD”)

HOW TO INSTALL MODULE
 SSH into Windows 10 IoT Core
 Enable ftpd.exe
 Upload Module to the standard PowerShell modules path:
C:Windowssystem32WindowsPowerShellv1.0Modules

BACKGROUND ON MODULE
CREATION
Created as a Library in C# and compiled as a DLL.
PSM File ^^

OTHER’S OUT THERE… SAME
STORY
http://photoatomic.com/post/2016/05/16/Turning-on-a-led-from-
powershell-over-wi-fi-i2c.aspx

RUN POWERSHELL ON STARTUP
(QUASI-HEADLESS)
Because most applications will not require a monitor,
keyboard, or mouse…

IOT SUITE VS IOT HUB
 IoT Hub – One piece of IoT Suite. Allows for devices to send data
to cloud storage (in a secure manner) for later consumption.
 IoT Suite –

DEVELOPMENT RESOURCES FOR
AZURE IOT

POWERSHELL AND AZURE IOT
Worse than Windows 10 IoT Core
Most development resources are still C#, Javascript, Node.js, etc.
Some use with creating an Azure IoT Hub using Azure Resource
Groups:
https://azure.microsoft.com/en-us/documentation/articles/iot-hub-
rm-template-powershell/
New-AzureRmResourceGroupDeployment -ResourceGroupName MyIoTRG1 -
TemplateFile C:templatestemplate.json -hubName abcmyiothub
template.json file defines Hub Name, Geo, and Pricing Tier

AZURE IOT DEVICE EXPLORER
Mainly used for Azure IoT
Hub (does not publish
devices in IoT Suite).
Allows you to add devices
in bulk to an IoT Hub.
Source code available
online – potential for
creating libraries for
PowerShell Cmdlets.
Add-AzureIoTDevice ??

ENDPOINT DEVICE
CONFIGURATION
Adafruit Huzzah Feather
• Setup Wifi
SSID/Password
• Enter Azure IoT Hub URL
and deviceKey (created
using Device Explorer)
• Libraries for this
available via:
https://azure.microsoft.co
m/en-
us/documentation/sample
s/iot-hub-c-huzzah-
getstartedkit/

THOUGHTS
 PowerShell accessibility nowhere close to where it needs to be.
 Microsoft IoT Ecosystem still heavily focused on traditional
developers, not weekend scripter types.
 Libraries are there – need more Dennis Rye types to expose those
libraries and build PowerShell Commandlets.
 Lots of competition for entry-level IoT developers:
 http://nodered.org/
 Cisco DevIoT (devnet.cisco.com)
 Adafruit.io
 Not to mention IBM Bluemix, AWS IoT, Samsung ARKIT, Cisco Jasper, etc.

LETS HAVE SOME FUN
 Azure IoT Suite: http://tayloriotsuitedemo.azurewebsites.net/
 Interface with an analog sensor on the RaspberryPi using A2D
Converter and PowerShell.
 Other ideas…

PowerShell: A Language for the Internet of Things #ATLPUG

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