PIC16F628A LED Chaser

Author : Dinesh Kumar Wickramasinghe


This neat little circuit provides 8 LEDs directly driven from the PIC along with a single mode control switch. The firmware elsewhere on this page drives the LEDs with a 5 bit PWM signal providing each of the 8 LED channels with four levels of intensity; off, dim, mid, bright. A number of sequences are programmed into the firmware to provide some interesting visual effects and chase sequences, including the classic effect seen on the car in the Knight Rider TV series (Original Source - picprojects.org.uk).

PIC16F628A LED Chaser YouTube Video
Completed circuit of the PIC16F628A LED Chaser
PIC16F628A LED Chaser
PIC16F628A LED Chaser When Running
PIC16F628A LED Chaser
PIC16F628A LED Chaser Schematic

PIC16F628A LED Chaser Downloads
Download Source Code
Download Compiled Hex (Ready to program)
Download Schematic
All in one zip

Comments Area
Add your questions and comments here. Comments will be published after the admin approval
Published By : Rohit Ahuja
Added Date :1/12/2021 1:32:29 PM
Hi there, i have a question do you know how to edit hex files, i want separate hex files for separate effects.
Published By : Sid
Added Date :6/8/2019 7:34:07 AM
Hello is it possible to default the chasing mode to one mode every time the circuit is powered on?
Published By : Mike
Added Date :3/26/2019 9:09:27 AM
Works very well. I used PIC 16F628A, programmed it on a PIC-K150 programmer. The pushbutton allows you to skip to the next effect. I also noticed if you hold down on the switch, it will enter a "mode-select" menu. Very cool project.
Published By : Jay-VietNam
Added Date :2/11/2019 2:53:04 AM
Is it possible to HARD WIRE a sequence so it runs each and every time the unit is powered up? This is say it would appear to be as a single, repeated, sequence whilst ignoring all the other programmed sequences? Thank you.
Published By : Gregorio Paderes
Added Date :1/15/2019 2:03:17 PM
hi admin do you have another project using pic16f628a, i really appreciated it ,
Published By : Gregorio Paderes
Added Date :12/21/2018 8:59:43 AM
thanks so much to the people who created this program there is a lot of choices for what kind of light chaser you want to set to watch..nothings wrong in the program its working well to my system i used pickit 3 to program the pic16f628a.
Published By : Chintan Palav
Added Date :6/25/2018 2:26:55 PM
Nice Project.. and Thank you for providing all details.. i want to do one change in this project that i want to change patterns when i off-on power switch, is it possible? if possible pls help me Thank You again..
Published By : Ernst
Added Date :6/6/2018 11:48:02 AM
This is for mostly all of the people here, If you can't SEEEEEEEEEEEEEEEEEEEEEEEEEE at the top of the page are all of the downloads that you need and have the KNOW HOW that you need a programming circuit which is not given here and a programming software that you will need to open the files so that you actually programme the ic (in this case the PIC16F628A) THEN my dears, please don't attempt to build this, cause you are to freakin dumb for that!!!!!!!!!!!!!! xD P.S. Admin/s sorry for me being so straight forward
Published By : random
Added Date :2/2/2018 11:48:23 PM
need to undertand the code
Published By : JMiller
Added Date :8/21/2017 4:20:54 AM
Please I want to know all components of the Circuit board and simulation circuit. Please
Published By : Subhrangsu Chandra
Added Date :12/17/2016 11:32:05 AM
I know ALP but no idea how I can use the ALP at any microcontroller. Please tell me what is the necessary software to open the attached source code here with?
Published By : Edi
Added Date :11/27/2016 9:45:52 AM
Kau masuki codenya pakai alat apa ya mas
Published By : YO NO
Added Date :10/28/2016 4:35:21 PM
merci merci
Published By : kreem adhm
Added Date :8/6/2016 9:21:20 AM
OK you are 1st ENG
Published By : kreem adhm
Added Date :7/25/2016 9:25:28 AM
need code
Published By : prasanth v p
Added Date :6/9/2016 3:30:28 PM
Published By : driss
Added Date :3/4/2016 10:28:36 PM
send me please code source for this projects
Published By : sivakumar
Added Date :1/2/2016 10:23:34 AM
Sir, this is a nice project
Published By : Anyamela
Added Date :11/30/2015 12:07:23 PM
I Complet Thic Circuit But No Work.Icpic16f628
Published By : v.thaniskumar
Added Date :2/4/2015 8:02:55 AM
plz hex id


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