Rain detector Options

[weather1967]

Hi all

I make a rain detector from this website

http://www.techlib.com/electronics/raindetectors.htm

But the electronic design ,it have a small problem ,the buzzer it was very small sound .And i change the circuit ,i add two tranzistor BC 547 styl darligton for make the buzzer more strong

Here is the website with details .

http://users.otenet.gr/~meteo/project_rain-detector.html

And a video

http://www.youtube.com/watch?v=5qNPu-hhZ8o

This post has been edited by weather1967: Oct 12 2009, 12:43 PM