Hi all,
I'm working on a LED sequencer and am wondering if a 4017 can be "told" to start on an output other than "0". I want to sequence 3 LEDs from outputs 0-2, using O3 as the master reset. No problem there, but I also want to be able to sequence 3 LEDs from outputs 4-6, using O7 as the MR. There would have to be two separate triggering conditions, I think. If this can't be done, I can just use two 4017s for this project. Thanks for all advice.

Gary

 

Nope. Go fish!

You might consider using a universal shift register that has the parallel inputs pre-set. Have the 4th and 8th parallel outputs trigger the parallel load input.

[eta]
Since you can't wire two outputs together, you could use a pair of 1N4148/1N914 diodes and a pull-down resistor to create an OR gate.

 

Nope. Go fish!

LMAOF
Good one.

 

Yep, that's what I was afraid of - thanks!