after a few "years" of break I'm in love /w Arduino, again. At the same time I'm in love with TP-Link TL-WR703N router, too. Altogether this is the result:http://incaseyoureat.dyndns.org/cgi-bin/weather
This is the orginal project: http://www.instructables.com/id/How-to-set-up-OpenWRT-on-a-pocket-router-WR703N/
TP-Link TL-WR703N with OPenWRT
Arduino with DS18S20
Every five minuets the Arduino sends temperature data via serial/USB to router. It gets the data and posts it to cosm (ex Pachube https://stats.pachube.com/
). Furthermore it writes data to text file that a script reads out. Google Charts showes it then.
Simple as is.