Basic single direction led chaser

Hello everybody. I am a newbies in this world and I am a bit lost. I want to make a project witch is a single direction led chaser. ( 6 led blinking one after another from one to six then start from the beginning over and over). I found plenty of larson scanner nightrider style but those are all bi-directional. Since I don't know much about it, I would need someone to tell me what hardware that I need and maybe a plan of the circuit. I will use 6  orange ultra-bright  5 mm led  VF: 2.1V- 2.5V    VR: 5V.  I would like to know what resistor that I have to use with this setup. I've read about a 4017 ship but I don't know if it is the one that I need for my project. I know I will need a lot of hardware that I don't know the name and that is why I need  help. It will be on a car so it need to be on 12V. I will have to make my schema on a PCB board 1 inch X 10 inches. It would be good if i can adjust the speed too. Since it will be a car blicker/flasher, I don't know if I need to use blinking led or if regular bright led will do.
Sorry about my lack of knowledge(and my bad English), I am sure that I forget to mention a lot of detail so feel free to put me on the right track.
Thank you for your time people
PS: In the picture, we aiming for the 6 orange led. they have to blink one at a time from the left to the right over and over.

Picture of Basic single direction led chaser
rbrunet (author) 3 years ago

I am learning now and it is pretty cool. I have done my first circuit "LED chaser" on circuit wizard and it work.

I have to make it on a PCB now...

Thanks guys.

G4224T3 years ago

a 4017 IC is a decade counter which would work. Each input pulse will sequentially switch a different output. When it reaches the last output, it starts again at the beginning. Its possible (i seem to recall) to only use 6 outputs by connecting the 7th output to the reset pin thereby cycling through only 6 outputs.

Any pulse type circuit could trigger the input although a 555 IC timer circuit would allow you to vary the time delay of the sequence.

Hope this helps.

caitlinsdad3 years ago

You might want to look into "light chaser" circuits. Hardware based instead of a microcontroller like arduino to sequence the LEDs. Good luck.