Technical Stuff: WLAN

Powershell - check if WLAN connected

 function Get-IniFile  
 {   
   param(   
     [parameter(Mandatory = $true)] [string] $filePath   
   )   
   $anonymous = "NoSection"  
   $ini = @{}   
   switch -regex -file $filePath   
   {   
     "^\[(.+)\]$" # Section   
     {   
       $section = $matches[1]   
       $ini[$section] = @{}   
       $CommentCount = 0   
     }   
     "^(;.*)$" # Comment   
     {   
       if (!($section))   
       {   
         $section = $anonymous   
         $ini[$section] = @{}   
       }   
       $value = $matches[1]   
       $CommentCount = $CommentCount + 1   
       $name = "Comment" + $CommentCount   
       $ini[$section][$name] = $value   
     }    
     "(.+?)\s*=\s*(.*)" # Key   
     {   
       if (!($section))   
       {   
         $section = $anonymous   
         $ini[$section] = @{}   
       }   
       $name,$value = $matches[1..2]   
       $ini[$section][$name] = $value   
     }   
   }   
   return $ini   
 }   
 $iniFile = Get-IniFile "c:\info\additional_info.ini"  
 $PreferredSSID = $iniFile.NoSection.SerialNumber  
 Function AutoConnect ($PreferredSSID){  
   #WIFI auto-connect  
   if($PreferredSSID -ne $null){  
     if(Get-NetAdapter | where {($_.Name -like "*wi-fi*" -or $_.Name -like "*wifi*") -and ($_.Status -eq "Disconnected")}){  
       netsh wlan connect name=$PreferredSSID  
       Start-Sleep -Seconds 2  
       netsh wlan set profileparameter name=$PreferredSSID connectionmode=auto  
     }  
   }  
 }  
 while ( Get-NetAdapter | where {($_.Name -like "*wi-fi*" -or $_.Name -like "*wifi*") -and ($_.Status -eq "Disconnected")}){  
   AutoConnect $PreferredSSID  
   Start-Sleep -Seconds 2  
 }

additional_ino.ini file:

1 2	SerialNumber = 35356345601 CalibrationDate = 22 Oct 2010

Powershell - create WLAN Profile from INI File

 function Get-IniFile
{  
    param(  
        [parameter(Mandatory = $true)] [string] $filePath  
    )  
    
    $anonymous = "NoSection"
 
    $ini = @{}  
    switch -regex -file $filePath  
    {  
        "^\[(.+)\]$" # Section  
        {  
            $section = $matches[1]  
            $ini[$section] = @{}  
            $CommentCount = 0  
        }  

        "^(;.*)$" # Comment  
        {  
            if (!($section))  
            {  
                $section = $anonymous  
                $ini[$section] = @{}  
            }  
            $value = $matches[1]  
            $CommentCount = $CommentCount + 1  
            $name = "Comment" + $CommentCount  
            $ini[$section][$name] = $value  
        }   

        "(.+?)\s*=\s*(.*)" # Key  
        {  
            if (!($section))  
            {  
                $section = $anonymous  
                $ini[$section] = @{}  
            }  
            $name,$value = $matches[1..2]  
            $ini[$section][$name] = $value  
        }  
    }  

    return $ini  
}  

$iniFile = Get-IniFile "c:\info\additional_info.ini"


$SSID = $iniFile.NoSection.SerialNumber

$profilefile = "$Env:USERPROFILE\AppData\Roaming\info\" + $SSID + "-WLANProfile.xml"
$PW = $SSID

$SSIDHEX=($SSID.ToCharArray() |foreach-object {'{0:X}' -f ([int]$_)}) -join''
$xmlfile="<?xml version=""1.0""?>
<WLANProfile xmlns=""http://www.microsoft.com/networking/WLAN/profile/v1"">
    <name>$SSID</name>
    <SSIDConfig>
        <SSID>
            <hex>$SSIDHEX</hex>
            <name>$SSID</name>
        </SSID>
    </SSIDConfig>
    <connectionType>ESS</connectionType>
    <connectionMode>auto</connectionMode>
    <MSM>
        <security>
            <authEncryption>
                <authentication>WPAPSK</authentication>
                <encryption>AES</encryption>
                <useOneX>false</useOneX>
            </authEncryption>
            <sharedKey>
                <keyType>passPhrase</keyType>
                <protected>false</protected>
                <keyMaterial>$PW</keyMaterial>
            </sharedKey>
        </security>
    </MSM>
</WLANProfile>
"

$XMLFILE > ($profilefile)

netsh wlan delete profile name=*
netsh wlan add profile filename="$($profilefile)"
netsh wlan show profiles $SSID key=clear
netsh wlan connect name=$SSID

additional_info.ini

1 2	SerialNumber = 35356345601 CalibrationDate = 22 Oct 2010

Powershell - Get IniFile and compare date - vbs

1	CreateObject("Wscript.Shell").Run "powershell -EP ByPass -NoP -File C:\checkCalibration_all.ps1", 0, False

friendlyarm NenoPi Neo Air - systemd - WLAN AP auto config

[Unit]
Description=Copy user wpa_supplicant.conf
ConditionPathExists=/boot/wpa_supplicant.conf
Before=dhcpcd.service

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/mv /boot/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf
ExecStartPost=/bin/chmod 600 /etc/wpa_supplicant/wpa_supplicant.conf

[Install]
WantedBy=multi-user.target

friendlyarm NenoPi Neo Air - WIFI

VORGEHEN ZUM AKTIVIEREN BZW. ÄNDERN DES PI ALS WLAN HOTSPOT:

Über serielles Terminal (USB-Kabel) auf pi einloggen. Falls WLAN Hotspot bereits existiert, dann mit dem PC sich damit verbinden und ein SSH Terminal Sitzung zum WLAN 192.168.8.1 verbinden. Dann die folgendes eingeben:

1 2	Sudo touch /usr/share/network-conf/ap/iptables.up.rules sudo turn-wifi-into-apmode yes

SSID und Passwort eingeben:
default: SSID=sensor-xx PASSWORD=123456789

ALTERNATIVES VORGEHEN ZUM EINRICHTEN DES PI ALS CLIENT:

# Wifi Hotspot am PC einrichten
# Über serielles Terminal auf pi einloggen, dann

1 2	sudo nmcli dev wifi sudo nmcli dev wifi connect "SSID" password "PASSWORD" ifname wlan0

# die Einstellungen werden gespeichert und auch nach Neustart wird Verbindung aufgebaut.

FALLS SCHON MAL IN DEN NETZWERKEINSTELLUNGEN RUMGEFUSCHT WURDE:

1	sudo nmcli dev

#if the status of a device is "unmanaged" it means that device cannot be accessed by NetworkManager. To make it accessed you need to clear the settings under "/etc/network/interfaces" and reboot your system.

1
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sudo nmcli r wifi on
sudo nmcli dev wifi
sudo nmcli dev wifi connect "SSID" password "PASSWORD" ifname wlan0