FHEM und FritzBox 7240

Aus FHEMWiki

CUL

  • flash CUL_V3.hex (from [http://www.atmel.com/ Atmel] page)
  • attach CUL to Fritz!Box (with a USB Hub to have USB-Memory stick and CUL running at the same time)
Note: to check if CUL works enable in FritzBox settings USB-Fernanschluss. 
Now it gets recognized as CUL868.
Remember to disable it again. 
The CUL should be recognized as "Es handelt sich um ein nicht unterstütztes USB-Gerät." 
This is OK!

Fritz!Box 7240

  • Update Fritz!Box to Firmware-Version >= 73.05.05
  • download [http://www.fhem.de http://www.fhem.de]
  • unzip and store at root of your USB-Memory stick in the folder "fhem" (this will be "/var/InternerSpeicher/<yourUsbStickName>/fhem/" on you Fritz!Box later on.
  • adapt in this folder the file "startfhem" if you use more then 1 storage device (e.g. USB memory stick and "1&1 Online Speicher") with hardcoded destination folder for your fhem path:
    home=/var/InternerSpeicher/SanDisk-Cruzer-01/fhem
  • Alternatively disable "1&1 Online Speicher" and use USB memory stick only. This way you don't have to adapt startfhem.
  • to use telnet enable with phone dialing #96*7*. To login use same password as for Fritz!Box webfrontend. Now you can edit all of your files using vi in telnet.
  • Now define your "fhem.cfg" to match your configuration, e.g. starting with your housecode:
    define myCUL CUL /dev/ttyACM0 1234
    ...
  • finally start fhem in telnet:
    /var/InternerSpeicher/SanDisk-Cruzer-01/fhem/startfhem
  • or use autostart => see [#Autostart_fhem #Autostart fhem]

Open issues

Daily resets with big log files

After 1 week running perfectly I was seeing regular/daily resets. The problem in my setting is that I am using several <a href="/w/index.php?title=FS20-STR&action=edit&redlink=1" class="new" title="FS20-STR (Seite nicht vorhanden)">FS20-STR</a>. These devices send every 2-3 minutes off-for-timer or on-for-timers signals. These events get logged in the monthly log file. After this log was bigger then 1MB I have seen these resets. After I emptied/deleted the file the box is running stable again.--Benutzer:Madu99

After looking more into this, it seems that the 7240 gets a memory problem when log files gets bigger then ~800KB. I changed the logging from monthly files to weekly files (using ./log/fhem-%Y-%m-%V.log). This way files should never get this big. Since then 7240 runs stable without any problems.--Benutzer:Madu99 01:44, 29. Dez. 2011 (CET)
see also GoogleGroups:FHEM auf Fritzbox - Logfile - info wenn wenig Speicher