Andrew's Weather Station in Sunny Sequim, Washington

My Weather Underground Site

Current Conditions

Hardware, Software, Location

• The sensors collect weather data and send it wirelessly to the in-home WMR968 console.

• The console then sends the data via serial port to a Linksys WRT54G wireless router running the Openwrt Linux distribution and wx200d server software.

• My serial port hack for the WRT54G was adapted from Rod Whitby's instructions.
  Notes: I used /dev/cua/1. The WMR968 needs a positive voltage on pin 7 of its serial port connector. I used pin 14 of the MAX233 RS232 driver chip to provide this.

• The wx200d binary that runs on this system was found here.

• I chose to use the router as my data logger because it runs 24/7 and consumes a relatively small amount of power, unlike my other home computers.

• The server software on the WRT54G router logs the data and transfers it periodically (using a cron job and wput) to the site that hosts these web pages. Another cron job uploads data to Wunderground.

• RRDtool and the utilities that come packaged with wx200d were used to build my weather charts.