Digital Picture Frame as a router status display

A 320x240 cheap (2,90€ by pearl.de) digital picture frame attached to a router is a very useful addition to show router's status information. The DPF display driver is already integrated into the lcd4linux project that makes it easy to use the frame. This for example is how it works for me:

Some details regarding DPF hacking can be found here (the page is in German)

Although lcd4linux is a powerful tool I'm still looking for a way to build complex dynamic menu structures to be able to control MPD from my remote, i.g to be able to navigate visually through the MPD database and select items into the playlist. And it seems like the lcd4linux is not powerful enough to do such things. I'll add some additional notes if I find a solution.

Update: my lcd4linux.conf for this layout is here
Update2: the digit's font is Impact, 48 points
Update3: I was asked to add some info about weather parsing

Well, first of all I have a script that is called when WAN interface goes up:

root@Buffalo:~# cat /mnt/sd/bin/onwanup.sh 
#!/bin/sh

WANIFACE=3g-wan
ifconfig "$WANIFACE" &>/dev/null || exit 1

WETTERFILE=/tmp/wetterParsed
[ "$(date +%F%H)" != "$(date -r $WETTERFILE +%F%H 2>&1)" ] && {
  /mnt/sd/bin/getWeather.sh > "${WETTERFILE}.tmp" && \
  mv "${WETTERFILE}.tmp" $WETTERFILE 
}

/mnt/sd/bin/checkMail.sh >/tmp/tmpMail && mv /tmp/tmpMail /tmp/newMail

This script is also called each 10 minutes by a cron job. There's no need to check weather conditions each 10 minutes because it's updated only once per hour on the site. This is why getWeather.sh is inside of a conditional clause. As far as redirection (">") in bash means that the target file is locked until command is finished I have to use mv command. Otherwise syslog is filled by lcd4linux warnings that file does not exist if it tries to access it in the same time.

The weather parsing script looks like this:

root@Buffalo:~# cat /mnt/sd/bin/getWeather.sh 
#!/bin/sh 

CITYID=242242       # My City WOEID
TUNITS=c            # c for cilsius, f for fahrenheit
DATAFILE=/tmp/tmpWeather

windDirection ()
{
  awk -v deg=$1 'BEGIN { exit int((deg+11.25)/22.5)}'
  case $? in
    0|16) echo "N" ;;
    1) echo "NNE" ;; 
    2) echo "NE" ;;
    3) echo "ENE" ;;
    4) echo "E" ;;
    5) echo "ESE" ;;
    6) echo "SE" ;;
    7) echo "SSE" ;;
    8) echo "S" ;;
    9) echo "SSW" ;;
    10) echo "SW" ;;
    11) echo "WSW" ;;
    12) echo "W" ;;
    13) echo "WNW" ;;
    14) echo "NW" ;;
    15) echo "NNW" ;;
  esac
}

parseWeather ()
{
  if [ -s "$DATAFILE" ]; then
    local TEMPER=`sed -nr 's/.*yweather:condition.*temp="([^"]*?).*/\1/p' $DATAFILE`
    local WCODE=`sed -nr 's/.*yweather:condition.*code="([^"]*?).*/\1/p' $DATAFILE`
    local HUMID=`sed -nr 's/.*yweather:atmosphere.*humidity="([^"]*?).*/\1/p' $DATAFILE`
    local PRESS=`sed -nr 's/.*yweather:atmosphere.*pressure="([^"]*?).*/\1/p' $DATAFILE | awk '{ printf("%.0f", 0.75*$0) }'`
    local PRESRISE=`sed -nr 's/.*yweather:atmosphere.*rising="([^"]*?).*/\1/p' $DATAFILE`
    local WINDDIR=`sed -nr 's/.*yweather:wind.*direction="([^"]*?).*/\1/p' $DATAFILE`
    local WINDSPD=`sed -nr 's/.*yweather:wind.*speed="([^"]*?).*/\1/p' $DATAFILE | awk '{ printf("%.0f",$0) }'`
    local FORCAST=`sed -nr 's/.*yweather:forecast.*high="([^"]*).*code="([^"]*).*/\1\n\2/p' $DATAFILE`
    case $PRESRISE in
      0) PRESRISE='-';;
      1) PRESRISE='R';;
      2) PRESRISE='F';;
    esac
    echo -e "$TEMPER\n$(windDirection $WINDDIR)\n$WINDDIR\n$WINDSPD"
    echo -e "$HUMID\n$PRESS\n$PRESRISE\n$WCODE\n$FORCAST" 
  fi
}

[ -n "$1" ] && CITYID=$1
DATAFILE="${DATAFILE}${CITYID}"
URL="http://weather.yahooapis.com/forecastrss?w=$CITYID&u=$TUNITS"

wget -q -O "$DATAFILE" "$URL" && parseWeather

It's not very efficient but it doesn't have to be as far as I start it only once per hour.