Arduino Tutorial 6: Build an LED Binary Counter

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In this lesson we take you through step by step how to build a Binary counter using the Arduino. We show how to make a 4 bit counter, and go through the circuit build and the program.

You can get the following Elegoo kit, to follow these lessons and play along at home

You can get more details about this lesson at our web site here:

#Arduino

[rubertostutzer]

Hi Paul! I am from Brazil, 74 years old and I am learning Arduino stuff as a Hobby! Your lesses are just great. Thank you so much!

[theeldest]

i am 4 years late. But i did my homework after every video and it was really easy for me after having watched your videos. thankyou so much

[jaws]

YES! Did the homework and my dog didn’t eat it. Had shoulder surgery and this is keeping me sane, well less crazy. Thank you. Off to make a 5 pin binary counter.

[marseillais]

Hey, Paul! I did the homework from lesson 5 just fine and my parents were impressed with my work. I am a mechanical engineering student and I am using your Arduino tutorials to help me prepare over this summer for a microcontroller programming class in the fall. You are an amazing teacher! Thank you.

[ovzroqq]

I didn't do the assignment because I assumed that I would be expected to use "while" with some "if" commands. I was stumped! Learning Arduino and electronics at 72. Coded in Cobol back when chariots were the best way to get around in Rome. Love your classes!

[microburst]

I’m so proud that I did it on my own and worked nice. Never thought I’d ever like assignments.

[colepdx]

I haven't written a single line of code in almost 10 years. I can't wait for my super starter kit to arrive. I started programming in 1973 on an HP9000 mainframe using COBOL and BASIC. My last contract was with Intel in 2009 and I was using C++ & MFC. What a long strange trip it's been.

[OttoVonKonrad]

I am not sure if you will see this comment, but here goes. You are thee best teacher I have had in my life. I hated school, and most structure learning programs for that matter; but your course on Arduino has been one of the most enjoyable and educational programs I have ever taken part in. Thank you for being one of those teachers that the world needs. Your lessons have touched more lives then you will ever know.

[robertwebb]

Hi Paul
You obviously want to "make a difference" and as a Christian since May 1956, I can tell you that you are doing that.

Your first lessons were good, these are outstanding. If I had had a teacher like you I would probably not have flunked Maths at school.

I have two objectives. I like to make stuff so the first objective is to add some "bells and whistles" to my current project that will probably take until the end of the year to finish. I have already learned enough to be able to do that. So thank you for that.

The second objective is to use what you are teaching us to program an arduino to add functionality to a metal lathe I have converted to run using a CNC program.

I am actually 10 years older that Paul from Brazil. I am in good health, an optimist and know that while other bits of us deteriorate with age, our brain can continue to function if we are prepared to stimulate it.

Thank you Woodie

[freddyavendano]

Paul you got me hooked on your videos...I feel like an old lady in front of the TV watching her favorite soap opera

[mrb]

This is so fun and engaging. If you could take 43 year old me and toss me back in high school I would come out a rocket scientist. 15 year old me could have cared less about this stuff. I guess that's age and wisdom for you. Thanks a bunch for taking time out of your day Paul and creating this workshop!

[thomasmaxwell]

I was SOOO excited to start these tutorials 6 weeks ago, I didn't make notes. By lesson 60, I started to regret that fact, so now I'm going through some of the more important lessons again so I can make notes, and testing whether I can do the homework without watching the next video first.

[shashwatmishra]

Sir you are the literally greatest teacher and trainer I have ever seen, you are the one with whom I am really learning something ever in my career, hope that I am lucky enough to meet you someday.

[VladTheInhaler]

Was so excited when I found that my homework was completed correctly! This has easily been my favorite series of tutorials I've ever taken the time to follow.
Thank you so much for your dedication to creating quality, informative content!

[briannagalan]

Hi Paul! I'm 13 and I really love your content! all of your videos are super easy to follow so I just wanted to say thank you!

[eduardocastellanoscampos]

Hi again Paul, I am from Mexico, 79 years old and I am following your lessons with great enthusiasm, your guide lines are very clear and this is facilitating my Arduino learning. Thanks very much.

[cussinsenterprisesllc]

i am a old repairman (66). i am really enjoying your tutorials. Your homework is really challenging my brain to stay active. Thank you

[a.vanmeel]

I did mine homework. Make the mistake to put the led on, delay and of again and than go to the other one. Learned a lot. Thank you for the great lessons.

[ernestng]

I am a retiree and just interested in learning Arduino recently. Your tutorials are great. It is clear and easy to follow. I will keep on learning after these 6 lessons. Thank you very much.

[irenesebate]

Hi Paul. Two days following your lessons. I'm so excited and I feel like rewind my years back to 25.