PowerShell-IoT

Note: PowerShell IoT is still in Preview

A PowerShell module for interacting with hardware sensors and devices using common protocols: GPIO, I2C & SPI.

Information

Goals

The main goal of this project is to provide a friendly interface for interacting with hardware sensors and devices using PowerShell.

That said, it was built as close to the metal as possible to keep the library broad enough to cover a range of sensors and devices.

The hope is that this module will be the foundation for other modules that will expose specific cmdlets for interacting with specific sensors and devices.

For example, a cmdlet stack to turn on a light bulb might be:

> Set-Light On # Your user types this / you make this cmdlet
> Set-GpioPin -Id 4 -Value High # You use this to make that^ / we make this cmdlet
> # Our code that makes that^

To see some examples of modules built on top of PowerShell IoT, see the Examples folder.

Supported platforms

Supported devices

Raspberry Pi 3
Raspberry Pi 2

Supported operating systems

Raspbian Stretch

Documentation & Examples

Please see our docs folder here for an API reference, pin layout and other docs. For examples, checkout our examples folder.

Dependencies

This project relies on .NET Core IoT Libraries. It is a .NET library for interacting with Raspberry Pi's IO functionality.

Installation

PowerShell Gallery

You can grab the latest version of PowerShell IoT by running:

Install-Module Microsoft.PowerShell.IoT

Please note that since this module works with Hardware, higher privileges are required (run PowerShell with sudo, or as root user)

Then see the section on running.

If you want to write a module that uses PowerShell IoT, include it in the RequiredModules field of your module manifest.

GitHub releases

You can also manually download the zipped up module from the releases.

Then see the section on running.

AppVeyor

You can download the latest CI build from our AppVeyor build here. Go to the latest build, click on either of the images, then click on the artifacts tab. From there, you can download a zip of the latest CI build.

Then see the section on running.

From Source

Prerequisites

Building

NOTE: You can't build on ARM devices at this time so you will need to build on another machine and copy the build to the device.

Clone/download the repo
run ./build.ps1 -Bootstrap to see if you're missing any tooling
run ./build.ps1 to build

At this point, you'll notice an out folder has been generated in the root of your repo. The project is ready to be deployed to your device.

Deploying

We have included a helper script, Move-PSIoTBuild.ps1, that will move the PowerShell IoT build over to your device. This copy uses PSRP over SSH so make sure you're able to connect to your pi this way. The Microsoft.PowerShell.IoT module will be copied to your $env:PSModulePath on your device. Here's an example:

Move-PSIoTBuild.ps1 -Ip 10.123.123.123 # IP address of device

You can also easily copy examples in the Examples folder over using the -WithExample flag. Just give a list of examples you want to copy over and it will move those to you $env:PSModulePath along with Microsoft.PowerShell.IoT:

Move-PSIoTBuild.ps1 -Ip 10.123.123.123 -WithExample Microsoft.PowerShell.IoT.Plant,Microsoft.PowerShell.IoT.SSD1306

Also, with the -Build parameter, it will build/test/package your project before moving it.

NOTE: If you'd rather not use the script, simply copy the out/Microsoft.PowerShell.IoT to your device to get started.

Running

Start PowerShell:

pwsh

If you have the Microsoft.PowerShell.IoT module in your PSModulePath:

Import-Module Microsoft.PowerShell.IoT

Alternatively, just import the .psd1:

Import-Module /path/to/Microsoft.PowerShell.IoT/Microsoft.PowerShell.IoT.psd1

At this point you can now mess with the module:

Get-Command -Module Microsoft.PowerShell.IoT
Get-GpioPin 2 # gets the data from GPIO pin 2

Testing

You can run tests, but they require a particular setup. Here is how you run them:

./build.ps1 -Test

The setup required:

For I2C: An Adafruit BME280 I2C or SPI Temperature Humidity Pressure Sensor
For GPIO: Bend pins 26 and 22 to touch each other or connect them in some way
For SPI: An Adafruit LIS3DH Triple-Axis Accelerometer

We currently have a build agent that will deploy PR code onto a test Raspberry Pi and run the tests found in the test directory.

License

PowerShell/PowerShell-IoT

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