Well about a year ago i had these led chaser boards made. And now im looking for the schematic i used for them. Here are the specs of it:
4 sets of leds moving.
It uses a 4017 with a 555 timer and a 0.1uf cap and a 47uf cap. It also uses 3 resistors and 4 transistors.
Im just wondering if anyone has a schmeatic like that anywhere.
555 timer is for clocking 4017, 0.1uF bypass cap, 47uF for timing 555, 4 transistors to drive leds, 10 outputs are possible with 4017, diagrams are available at application datasheets of these ICs.