Here what I need: a button that as soon as it's pressed sets HIGH something, then after 3 seconds turns that LOW and turns HIGH a second line. As soon as it is released, both must go low.
exact timing is not important, and I'd like to do it with few components..
I tried with 2 opamp and a transistor, plus a lowpass filter for timing... it works partly but when you release the button it doesn't go LOW immediately (since the capacitor discharges slowly..) besides I know there must be a much more elegant and easier way!
thanks!
exact timing is not important, and I'd like to do it with few components..
I tried with 2 opamp and a transistor, plus a lowpass filter for timing... it works partly but when you release the button it doesn't go LOW immediately (since the capacitor discharges slowly..) besides I know there must be a much more elegant and easier way!
thanks!