We were just talking about lightning the other day, and I ran into this article on Engadget:
Engadget: Watch lightning strike around the world in real time
The article is talking about the Blitzortung.org website.
A better implementation of the map is located at:
Some apps for your phone do exist, too.
Apps for Smartphones and Tablets
This is cool because I was just wishing that I had a way to determine how close the lightning was. We were swimming and watching the storms brew trying to figure out when we needed to get out of the pool. I wished that I had an alarm that would alert me when the lightning was too close for safety. I think the first Android app on their list might take care of that wish!
Ирина · April 11, 2016 at 10:55 pm
The basic circuit above is combined with any of the following circuits to complete the lightning detector. The prototype used the 5 volt lamp driver, meter circuit, and speaker circuit.