Is it possible to use a common cathode resistor for all 10 LEDs with 4017 decade counter? I try it but only the first LED (output 0) lights up.
EDIT: I got it working. My wiring was wrong. I use a 9V battery power supply. I plan to cascade multiple 4017s (up to 10 of them) to a single LED sequence - so I may get 100 LEDs hooked to a single common resistor.