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Reset to default via (W)LAN interface

How it works

Right after power-on, the Avisaro 2.0 WLAN products start for 3 seconds with the default WLAN settings (SSID: avisaro, mode: adhoc, IP adress 192.168.0.74). During this short time, the modul sends out special UDP broadcast messages on port 22122. Those messages are send out either via WLAN or LAN. If those messages are replied to the module, the module remains in this default state. If no messages are replied, the module starts with the user settings and operates normally.

Thus - no matter how the regular WLAN settings are, this is a way to recover the Avisaro 2.0 product.

To reply the UDP messages, simply use a UDP tool or better, use the "WLAN catch" tool provided by Avisaro.

Video Tutorial

Step 1: Configure WLAN and TCP on your PC

WLAN Config

Navigate to the WLAN network settings of your PC. Right mouse button and properties. Select "Add..."

WLAN Config

Add an adhoc WLAN network called 'avisaro' with no encryption:

WLAN Config

Select OK (and allow all warnings). Activate the created WLAN profile by navigating to 'list all networks':

WLAN Config

Select the 'avisaro' network and hit 'connect':

Alternatively, use the 'wireless configuration' tool which comes with the installed WLAN interface. Those tools are usually better to use. Create a profile with the setting: SSID: avisaro, Mode: adhoc, Channel: 11, no encryption.

Finally, change the IP adress space of the WLAN interface to 192.168.0.x with subnet mask 255.255.255.0

Step 2: "Catch tools"

Avisaro Catch Tool

Download the software (Mehr here). This application is written in Java. If your computer does not have the Java runtime environment, download it at Sun (Mehr link).

Configure the WLAN as described above

Catch Tool

Start the Avisaro catch tool:

Catch Tool

Start the Avisaro 2.0 product. The catch tool will automatically receive the UDP beacon messages and return those to the Avisaro product. The 'catched' moduls will be displayed with their MAC adress: 

Use the browser to navigate to the configuration website.

UDP tool

A simply UDP tool such as the "UDP Test Tool" (Mehr link) is ok to use. A good way to use those tools is:

  1. Configure the WLAN interface and the IP settings of your PC
  2. Start the UDP tool, than start the Avisaro product. The UDP tool should catch the broadcast message. Turn off the Avisaro product
  3. Copy the received UDP broadcast message into the 'outgoing' messages and enter the IP adress 192.168.0.74 as target (*.75 if LAN is used). Usually the tools provide the function 'send out repeatedly'. Activate this, otherwise hit 'send' manually several times during the next step.
  4. Turn on the Avisaro product. The UDP tool send out messages will be received by the Avisaro modul and cause the modul to remain in defaul settings.
  5. Use the browser to navigate to the configuration website.