Device/Get-LifxDevice.ps1
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<#
.SYNOPSIS Finds Lifx devices on the network .DESCRIPTION This cmdlet sends a Lifx discovery packet via UDP to all devices on the LAN that respond on port 56700. It will return one or many objects that contain the device's IP address and current State in a byte array. This command is typically used as the starting point for issuing subsequent LifxLan cmdlets. .EXAMPLE Get-LifxDevice #> function Get-LifxDevice { <#find all of the bulbs on the network that respond to a broadcast packet on UDP port 56700#> #define constants $Port = "56700" $localIPs = Get-NetIPAddress | Where-Object{$_.AddressFamily -eq "IPv4"} | Select-Object IPAddress #define listener constants $localIP = [System.Net.IPAddress]::Parse([System.Net.IPAddress]::Any) $RemoteIpEndPoint = New-Object System.Net.IPEndpoint($localIP, $Port) $receivingUdpClient = New-Object System.Net.Sockets.UDPClient($RemoteIpEndPoint) $receivingUdpClient.Client.Blocking = $false $receivingUdpClient.DontFragment = $true $receivingUdpClient.Client.SetSocketOption([System.Net.Sockets.SocketOptionLevel]::Socket, [System.Net.Sockets.SocketOptionName]::ReuseAddress, $true) #Send the Announce (getService) UDP Packet to the LAN [Byte[]]$sendData = New-LIFXPacket -Type "Discovery" | Convert-LifxPacketToBuffer $send = $receivingUdpClient.SendAsync($sendData, $sendData.Length, "255.255.255.255", $Port) #wait a second start-sleep -seconds 1 #prep the loop $global:discoveredBulbs = @() #Define the Bulbs function Receive-LifxBulb { while ($receivingUdpClient) { try { $result = $receivingUdpClient.Receive([ref]$RemoteIpEndPoint) $bulb = [PSCustomObject]@{ IPAddress = $RemoteIpEndPoint #Name = "" #Power = "" #Group = "" #State = $result #Service = [System.BitConverter]::ToUInt16($result, 36) Port = [System.BitConverter]::ToUInt32($result, 37) } if ($localIPs.IPAddress -notcontains $bulb.ipaddress.address.IPAddressToString) { $global:discoveredBulbs += $bulb } } catch { #Write-Error $_.Exception break } start-sleep -milliseconds 5 } } while ($discoveredBulbs.Count -eq 0) { Receive-LifxBulb Start-Sleep 1 } #shut it down $receivingUdpClient.Dispose() $receivingUdpClient.Close() $results = $discoveredBulbs | sort-object ipaddress -unique return $results } |