Bicycle back Safety Light with IC 555 or 7555

Flashing 13 LED unit, 3V supply
Also suitable for jogger/walkers

IC1 is a CMos version of the 555 IC wired as an astable multivibrator generating a 50% duty-cycle square wave at about 4Hz frequency.

This entry was posted on Friday, May 30th, 2008 at 10:23 pm and is filed under Flasher, led display. You can feed this entry. Responses are currently closed, but you can trackback from your own site.