LED Chaser by IC 4017 + IC 555

If you want to build a 10 LED Chaser circuit we suggest this circuit first. It uses popular IC is a simple and affordable IC-4017_decade counter and IC-555.
As Figure 1 is LED chaser circuit whicn The CD4017 act as LED driver in 10 output, by LED will glow only one in a rapid sequence. And control to speed with VR1 which is setting frequency output of a basic astable or free-running pulse generator with IC-555 as main.
The detail is other see in circuit picture better.
 Circuit LED Chaser by IC 4017 + IC 555
This circuit is working in below.

When we experiment them as well next step we come to make…
 
https://www.youtube.com/watch?feature=player_embedded&v=Utm02VZLCh0