Easier Approach to Electronic Projects

LED Chaser


This is a sequential circuit design, it has 10 LEDs

The count advances as the clock input from 555 timer becomes high (on the rising-edge). Each output Q0-Q9 goes high in turn as counting advances.

The reset input should be low (0V) for normal operation (counting 0-9).

If you just want to use few LEDs just to have a look at function, counting to less than 9 is achieved by connecting the relevant output (Q0-Q9) to reset, for example to count 0,1,2,3 connect Q4 to reset.

 

Parts Required:

  1. 33k, 47k & 1k.
  2. 0.1mF
  3. 2.2mF
  4. 555 Timer IC
  5. 4017 Counter IC
  6. Led x(10)
  7. 9v Battery

Circuit Diagram:

 

 

 

 

 

Bread board Arrangement:

 

 

 

 

 

 

IC Pin Configuration:

 

 

 

 

 

 


Did it work? If it did, you can thank me back by donating whatsoever amount possible. My website is a personal initiative for education and development, and to provide a user-friendly experience I do not allow any sort of monetizing adds on my website. Your even a very small donation is very precious for the future development of Rookie Electronics. Thank you!

Click this donate button which will take you to safe PayPal window where you can donate Rookie Electronics.


 

Read more:
7-Segment Display(Rookie Electronics)-001
MOD-10 7 Segment Display

This is a sequential circuit design, Mod10 means it will count from 0-9.  555 timer is in astable mode and...

Arduino Uno
What is Aurdino?

Arduino is the most famous micro-controller among hobbyists and students around the world. Most importantly it is an open source physical...

RF Detector
RF Detector Rocks!

This post is a response to the project named: RF Radiation Detector. I got an e-mail from electronics hobbyist who did not...

Close