PSTouchSensor

A tiny PowerShell module that streamlines interacting with touch sensors like this:

This project is built on top of PowerShell IoT in order to interact with the sensor.

This was originally made for PSConf Asia 2018 as a part of my talk "PowerShell IoT: A new frontier for PowerShell".

Useful Links

• Install PowerShell on Raspberry Pi
• Enable PowerShell Remoting (PSRP) over SSH
• Configuring the Azure Pipelines Agent on Linux

NOTE: You need at least version v2.141.0 of the Azure Pipelines agent so you may need to download it from GitHub.

Gotchas

• The Azure Pipelines agent acts as a different user on Linux so you may need to change the permissions of the pwsh executable so the agent can execute pwsh. Simply run:

sudo chmod 755 ~/powershell/pwsh

• The link above to enable PowerShell remoting over SSH will only run pwsh as non-root. This is a problem because we need to be root in order to interact with hardware on Raspberry Pis. To fix this, you can add a new Subsystem to your sshd_config that looks like this:

Subsystem    powershell-sudo    sudo /usr/bin/pwsh -sshs -NoLogo -NoProfile

Then to use this subsystem, you can use the -Subsystem parameter:

Enter-PSSession -HostName pi@192.168.123.123 -Subsystem powershell-sudo