Uses a Basic Stamp 2 to display the number of lightning strikes per minute on a row of 8 LEDs. Depending on the mounting configuration, the lightning sensor is capable of detecting lightning strikes greater than 50 miles away.
http://homepage.mac.com/tbitson/weather/bslam/
A VLF receiver tuned to 300 kHz designed to detect the crackle of approaching lightning. A bright lamp flashes in synchrony with the lightning bolts indicating the proximity and intensity of the storm.
http://www.techlib.com/electronics/lightning.html
VLF receiver tuned to 300 kHz designed to detect the crackle of approaching lightning.
http://margo.student.utwente.nl/el/misc/litening.pdf