Circuit Description
This sequence uses two different and affordable IC-4017 decade counter and IC-555.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.
Sequence generator uses IC1-NE555 as timer. IC-555 is used as the square wave generator to output. When IC1-NE555 generate the frequency up, will be entered to IC2-CD4017 by through way of R 100 ohms. IC2 is Decade Counter IC will provide output is positive voltage Sort by Position according to input signal from IC1-NE555 One end of the LED all.
Circuit Diagram

Components Required
1. Resistance-
Variable resistance- VR1-100kΩ
R1- 10KΩ
R2- 10KΩ
2. IC2 555 Timer
3. IC1 4017 Decoded decade counter
4. LED D1-D9
6. Battery 12v DC
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