I would like to build a circuit the flashes twice, then shuts off. I have seen the traffic lights circuit with two 555 timers in astable mode that controls 3 LEDs at differrent periods of time. One circuit could be monostable for four seconds, with second circuit as astable, on, off with R/C values adjusted to perhaps have one second on time (or less), repeat twice, then off. Does anyone have an idea for something that may work for circuit #1 then circuit #2? Any help welcome. Thanks!