I ride my bike allot at night and sometimes I’m not sure if people can see me. This circuit will flash an incandescent light that you can purchase from Radio Shack.
This circuit was requested from an email. It will allow your car headlights to flash on and off at the same time or it will cause them to flash alternately. The circuit is based on the 555 timer. It is used in the astable mode.
In this circuit, one, two or three neon indicator bulbs can be made to flash in sequence at rates determined by the R and C values.