Logitech Litra Glow Beam Powershell Function

LogiLitra.ps1

#Litra Glow and Litra Beam Powershell Controller
#Download hidapitester here : https://github.com/todbot/hidapitester/releases
#Based on https://www.reddit.com/r/LogitechG/comments/sacz2x/comment/j7doia4/?utm_source=share&utm_medium=web2x&context=3

#Change to point to the extract folder
$HIDAPItesterFolderPath = "C:\Users\username\Scripts\"

#HIDAPItester
$global:HIDAPItesterPath = $HIDAPItesterFolderPath + "hidapitester.exe"


Function Set-HIDAPItester {
  [CmdletBinding()]
    param (
      [Parameter(Mandatory = $true)]
      [string] $vidpid,
      [Parameter(Mandatory = $true)]
      [string] $OpenPath,
      [Parameter(Mandatory = $true)]
      [string] $output,
      [Parameter(Mandatory = $true)]
      [string] $usagePage,
      [string] $HIDAPItesterPath = $global:HIDAPItesterPath
    ) 
    $null = &($HIDAPItesterPath) --vidpid $vidpid --usagePage $usagePage --open-path $OpenPath --send-output $output
}

Function Get-LitraLight {
    [CmdletBinding()]
    param (
      [switch] $Beam,
      [switch] $Glow
    )
    if($Beam){
        $LitraRaw= &($HIDAPItesterPath) --vidpid 046d/c901 --usagePage FF43 --list-detail
    }
    elseif($Glow){
        $LitraRaw= &($HIDAPItesterPath) --vidpid 046d/c900 --usagePage FF43 --list-detail
    }else{
        $LitraRaw= &($HIDAPItesterPath) --usagePage FF43 --list-detail
    }
    #$litraRaw
    $i=0
    [Array]$LitraLights = @()
    $LitraLight = New-Object PSObject
    foreach($line in $litraRaw){
        $i++
        if($i -eq 1){
            $name = "vidpid"
            $value = $line.split(":")[0].trim()
        }else{
            $name = $line.split(":")[0].trim()
            $value = $line.split(":")[-1].trim()
        }
        if(!$([string]::IsNullOrempty($name))){
            $LitraLight | Add-Member NoteProperty -Name $name -Value $value
        }
        if($i -gt 8){
            $i=0
            [Array]$LitraLights+=$LitraLight
            $LitraLight = New-Object PSObject
        }
    }
    return $LitraLights
}

function Set-LitraLight {
[CmdletBinding()]
    param (
      [Parameter(Mandatory = $true)]
      [string] $vidpid,
      [Parameter(Mandatory = $true)]
      [string] $OpenPath,
      [ValidateRange(1, 100)]
      [int] $Brightness,
      [ValidateRange(2700, 6500)]
      [int] $temperature
    )
    if($Brightness -gt 0){
        [int]$brightnessvalue = [math]::floor(31 + ($Brightness/100*368))
        $brightnessvalue
        $hex = $brightnessvalue | Format-Hex
        $hex
        $output= "0x11,0xFF,0x04,0x4F,0x"+ $hex.HexBytes.Split(" ")[1] +",0x"+ $hex.HexBytes.Split(" ")[0]
        Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output $output
    }
    if($temperature -gt 0){
        $hex = $temperature | Format-Hex
        $hex
        $output = "0x11,0xFF,0x04,0x9D,0x"+ $hex.HexBytes.Split(" ")[1] +",0x" + $hex.HexBytes.Split(" ")[0]
        Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output $output
    }
}


Function Start-LitraLight {
    [CmdletBinding()]
    param (
      [Parameter(Mandatory = $true)]
      [string] $vidpid,
      [Parameter(Mandatory = $true)]
      [string] $OpenPath
    )
    $output = "0x11,0xFF,0x04,0x1D,0x01"
    Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output $output
}

Function Stop-LitraLight {
    [CmdletBinding()]
    param (
      [Parameter(Mandatory = $true)]
      [string] $vidpid,
      [Parameter(Mandatory = $true)]
      [string] $OpenPath
    )
    $output = "0x11,0xFF,0x04,0x1D,0x00"
    Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output $output
}

#Exemple:
Write-host "All Off"
$lights = Get-LitraLight
foreach($Light in $Lights){
    Stop-LitraLight -vidpid $light.vidpid -OpenPath $light.path
}

Write-host "All On"
$lights = Get-LitraLight
foreach($Light in $Lights){
    start-LitraLight -vidpid $light.vidpid -OpenPath $light.path
}

Write-host "Beam On"
$lights = Get-LitraLight -Beam
foreach($Light in $Lights){
    start-LitraLight -vidpid $light.vidpid -OpenPath $light.path
}

    
    

Thank you for this!
I wanted to get my Logitech Litra lights to turn on whenever my computer starts up, and turn off whenever my computer shuts down, so your script helped me do that!

If anyone else is curious, I created a repo/guide to be able to do this easily: https://github.com/stefano-u/LogitechLightPowershell

Thank you, @poiriersimon and @stefano-u!

I want to do exactly what you set up, @stefano-u. You would have thought this would be a setting in LG Hub to turn off and on at start-up and shutdown.

I cannot get it working, however, so I wondered, do you know if it requires USB connection? I am currently using Bluetooth.

Yes this use the USB connection. Not sure if it could be ported to be used with BT Le mar. 19 déc. 2023, 05 h 43, Tim Maiden ***@***.***> a écrit :

…

***@***.**** commented on this gist. ------------------------------ Thank you, @poiriersimon <https://github.com/poiriersimon> and @stefano-u <https://github.com/stefano-u>! I want to do exactly what you set up, @stefano-u <https://github.com/stefano-u> . You would have thought ither would be a setting in LG Hub to turn off and on at start-up and shutdown. I cannot get it working, however, so I wondered if it requires USB connection. I am currently using Bluetooth. — Reply to this email directly, view it on GitHub <https://gist.github.com/poiriersimon/eaee208ce8ea79f30b4cc7d3a078c3bc#gistcomment-4799843> or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHKNXI7Y3BCRC7MXGJ3XXHTYKFVWPBFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFQKSXMYLMOVS2I5DSOVS2I3TBNVS3W5DIOJSWCZC7OBQXE5DJMNUXAYLOORPWCY3UNF3GS5DZVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVEYTEMRQGE2DONJQU52HE2LHM5SXFJTDOJSWC5DF> . You are receiving this email because you were mentioned. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

Thank you for the reply. I managed to get it working with Bluetooth, that was not the issue.

I believe it was due to these lights being brand new, and seemingly a newer iteration, or at least a different version.

I had to use the --read-input-forever of hidapitester to monitor the hex values being passed when I manually turned the lights off and on, to work out the required hex values to pass.

In case it helps anyone else:

To Turn the RGB lights ON:

Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x0A,0x4E,0x01" -HIDAPItesterPath $HIDAPItesterPath

To Turn the RGB lights OFF:

Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x0A,0x4E,0x00" -HIDAPItesterPath $HIDAPItesterPath

To Turn the White lights ON:

Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x06,0x1E,0x01" -HIDAPItesterPath $HIDAPItesterPath

To Turn the White lights OFF:

Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x06,0x1E,0x00" -HIDAPItesterPath $HIDAPItesterPath

Thanks for sharing your results! Le mar. 19 déc. 2023, 13 h 38, Tim Maiden ***@***.***> a écrit :

…

***@***.**** commented on this gist. ------------------------------ Thank you for the reply. I managed to get it working with Bluetooth, that was not the issue. I believe it was due to these lights being brand new, and seemingly a newer iteration, or at least a different version. I had to use the --read-input-forever of hidapitester to monitor the hex values being passed when I manually turned the lights off and on, to work out the required hex values to pass. In case it helps anyone else: To Turn the RGB lights ON: Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x0A,0x4E,0x01" -HIDAPItesterPath $HIDAPItesterPath To Turn the RGB lights OFF: Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x0A,0x4E,0x00" -HIDAPItesterPath $HIDAPItesterPath To Turn the White lights ON: Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x06,0x1E,0x01" -HIDAPItesterPath $HIDAPItesterPath To Turn the White lights OFF: Set-HIDAPItester -vidpid $vidpid -usagePage ff43 -OpenPath $OpenPath -output "0x11,0xFF,0x06,0x1E,0x00" -HIDAPItesterPath $HIDAPItesterPath — Reply to this email directly, view it on GitHub <https://gist.github.com/poiriersimon/eaee208ce8ea79f30b4cc7d3a078c3bc#gistcomment-4800471> or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHKNXI3U66JKPLXWTSGZSYDYKHNLVBFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFQKSXMYLMOVS2I5DSOVS2I3TBNVS3W5DIOJSWCZC7OBQXE5DJMNUXAYLOORPWCY3UNF3GS5DZVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVEYTEMRQGE2DONJQU52HE2LHM5SXFJTDOJSWC5DF> . You are receiving this email because you authored the thread. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

No problem 😊. Thank you again for creating this in the first place!