Knight rider bike flasher

In this instructable, I will show you how to make a bidirectional LED chaser. I built this to be a bike flasher, and this would be a very good application for this. If you are going to use it for a bike flasher, you are going to want to use the brightest LEDs that you can find. other wise it is still a cool light show type thing. this is a pretty easy circuit to make, so you should not encounter many problems.

Step 1

First, you are going to need to gather the materials. all the materials are fairly common, and feel free to change the value of things if you want to experiment.

- one 555 timer
- one 4017 decade counter/ decoder
- two 1k resistors
- one 10 µf electrolytic capacitor
- two .1 µf ceramic disk capacitor
- six-eight 1N4148 diodes (number needed depends on the number of LEDs you use)
- one 10k trimmer (or potentiometer, but the trimmer was smaller)
- one eight pin IC socket
- one sixteen pin IC socket
- one SPST toggle switch
- four-six 3000 mcd red LEDs
- one nine volt battery snap
- a lot of jumper wires
 

Comments

[Daniyal Khan]

Can I Relate this project to Digital System??

[Higgs Boson]

Yes, but what exactly do you want to relate it to?

[Daniyal Khan]

Actually i have to make a project of digital System and this is looking easy so i wanted to ask you that is there any relation of digital system in it

[Higgs Boson]

Well this does use logic gates as does most ic projects, so it would be a digital electronics project and can be related to digital systems. Hope that helps.

[Milan_ramani87]

cool

[Higgs Boson]

Thank you.

[oanderson]

Cool, we made one of these at school but we had 2 diodes for each LED.

[Higgs Boson]

Thanks. The LEDs that are connected to two pins on the decade counter have two diodes, but the last one doesn't need any. (and neither would the first one if you used 6 LEDs)

[oanderson]

yeah, mine had a 4017B too, not too sure of the difference though :)