Information on selected astronomy free software. Read a comment, see a screenshot and download.
http://www.stargazing.net/AstroTips
http://www.web-ee.com/Schematics/WirelessWeather/WirelessWeather.htm
http://www.techlib.com/electronics/barometer.html#Electronic%20Barometer
http://www.dinsmoresensors.com/
Stick this out the window instead of your hand.
http://www.wenzel.com/pdffiles/rainsens.pdf
FAQ
http://margo.student.utwente.nl/el/misc/nicadfaq.zip
Watch the electrical charges dance in the clouds above during a thunderstorm! Weather Circuits.
http://www.wenzel.com/pdffiles/cloud.pdf