This will check to see if a device is connected to computer
clear-host
# list out all devices - just for troubleshooting purposes
Get-PnpDevice -PresentOnly
# which device to test
$TestDevice = "Bluetooth"
# test device
If (Get-PnpDevice -PresentOnly -FriendlyName $TestDevice) {write-host "TRUE"} Else {Write-host "FALSE"} -silentlycontinue
Notes
$ErrorActionPreference = ‘Stop’
$ErrorActionPreference= ‘silentlycontinue’
try
{
Main code
}
catch
{
Error handling
}