ok so the initial design of the "toy" was that 2 leds would flash back and forth at a set frequency say something like 5hz, that part of the design was designed around a 555 timer, just a simple square wave oscilator. The power system was switched with a regular togle switch and then the push button switch would turn on the leds and then an arm pops out, hits the push button and turns off the leds. The random 1 of 4 arms that pops out was originally to be controlled by a second IC, I am not sure how I would generate a random event if I go down that path.
If I change the design so the LEDs are running constantly and use the push button to cause the random event, what chip would be best to decipher which servo is the active one and how would it decipher which one based on the output from the 555 timer?
I just talked the design out with my wife and she does not want the design to change any so it needs to operate as follows:
turn master power on, press button, LEDs start flashing, arm pops out and presses button, LEDs stop flashing
of course the 4 arms pop out from 1 of 4 sides of the box...
Just thought of a work around, not sure how well it would work, but of course utilize 2 555 timer chips, 1 to operate the LEDs while the switch is on the other as a clock for the random event