Arduino Tutorial 41: Understanding Hexadecimal Numbers and Why They Are Important

You guys can help me out over at Patreon, and that will help me keep my gear updated, and help me keep this quality content coming:

You guys can help me out over at Patreon, and that will help me keep my gear updated, and help me keep this quality content coming:

In this lesson we explain how Hexadecimal numbers work, and why they are important. We compare counting in digital, Binary and Hexadecimal. This will be important to know for future projects.

You can get the kit I am using for this series at the following link:

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#Arduino

[twinstarsnz]

I've been a Chartered Professional engineer for 19 years and I confess meeting people as prepared & good at teaching as Paul is quite rare. Thanks Paul! Excellent work.

[brianmarshall]

Hey Paul, you are so right about 95% of YouTube instructors: it is all about their ego's.Unfortunately the same applies to a lot of the Linux forums. A lot of people forget that they were beginners once too. Let me tell you as a 70 year young man, you are the best teacher I have come across.Thank you so much for giving your time and knowledge so freely!!

[saviofernandes]

at 2:35 "So many times they're not trying to teach you, they're just trying to show off how much they know." - This is so true, not just online but in everyday life too.

[glennfelpel]

Excellent training!  This is the best Hexadecimal training I have ever I can understand.  Thank you.

[petrusjohannesrautenbach]

Dear Paul,

I feel like I'm playing a little catch up with your videos, but these tutorials are absolutely incredible! I've never known a teacher to carry the information over quite as quickly and clearly as you do. Thank you so much for putting the effort into doing these videos. I can't wait to start on your Python tutorials.

[tomandriopoulos]

This guy is a legend. The fact you don't edit the video and instead show problem solving is very helpful

[manojentcal]

Yo Chief!!


It is said that a tree with strong roots always stands rock solid and bears useful fruits.


This is exactly what your lessons are doing for us: making our roots, our foundation and our understanding of the subject stronger so that we emerge better. And in the same vein, since roots do not get converted either into trees or fruits overnight, it will take time for novice students like us to grasp the subtleties of the subject, but once we do it, it would be for life. All thanks to these wonderfully thought out lessons.


So, Chief, I bow down to your perserverance, tenacity and dedication.


Hat off, Teach!!

[larryshreve]

For 30 years I've known what hexadecimal is. Now I understand WHY hexadecimal is. Thank you.

[MJCPeters]

I learned binary and Hex after getting a TRS-80 model I when it first came out.
I consider it one of the basic skills everyone should have for working with computers and highly recommend everyone to spend the time on this lesson to learn it well.

[fjdelahoz]

Dear Paul: I always enjoy your tutorials and look forward to watching them. Merry Christmas and a Happy New Year to you and your loved ones.

[AMTheTinkerer]

My favorite quote from your video.
"I keep running into this nonsense that makes no sense" 😀
So true!

[shardyphotographic]

Paul you are an excellent teacher, some say knowledge is power, but being able to share it is rare. This episode was so informative, you really inspire people to learn, thank you Paul

[joshuadelisle]

This was very interesting. I now know how to make a hexadecimal/binary converter on my Arduino. not sure what to use it for but it was a great lesson. Thank you and God bless

[michaelcallahan]

Hi Paul. I'm an actuary just out of college getting into electronics as a hobby for the first time. I watched some of the career-related videos you put out on your channel a few years back and I just wanted to say thank you so much for all the incredibly valuable content you put out to the public -- not just the technical information, but also the general life advice.

I started college wanting to be an engineer because I loved math and physics, but my first semester Engineering Design course was such a miserable experience that I wrote off the whole career and changed my major to math. It worked out fine -- I graduated summa, got a job paying six figures out of school as an actuary, and I am now well on my way to obtaining full credentials. But a part of me always wonders what life would have been like if I stayed in engineering. I always had an itch to learn science, and I hope that my next career move will end up in our version of research (mortality trend prediction and biometric analysis) and suit me better than my current job (consulting analyst, glorified spreadsheet monkey, part-time modeler). But ever since I learned about arduino and hobbyist electronics from a professor my senior year, I developed this other newer itch to build things and take risks. I won a few hackathon/innovation type competitions at my college senior year as a last hoorah, but they didn't really have the upside potential to justify giving up the job I had lined up.


Then right when I started my job, I came up with a great idea for a patent and small scale production, only to find I was a month late to get the patent. Now I'm trying my best to pursue my career as an actuary while learning as much as I can about this stuff, so that the next time I have a bright idea (if I do), I will have the tools to pursue it. I don't want to let another one slip through my fingers because I'm too preoccupied.


Thanks again for all your advice, and the tools you have given me and many people like me. And Merry Christmas!

[rizamavictor]

Thank you Sir Paul. You're a Gem 💎 to our generation!

[jamilalhaidary]

Really I'm so glad to study arduino with your nice lessons step by step explanation is so clear and in engineering way...that is so nice....thank's a lot ....I'm Jamil from Iraq ...52 years old

[dustinmuffington]

Paul... Your monologue about smart people liking to show off how smart they off genuinely means the world to me. Your tutorials have taught me so much and have given me an enormous amount of hope during a really rough time in my life.... You have really seriously touched my life and are helping me do things I never thought I could do. I'm sure I'm speaking for many, many people here... We thank you and really truly appreciate you very much!

[ilyashick]

Hi Paul again,  what is story  with some lessons are "Private video" ?

[piyush-hppz]

in the entire youtube no one can explain like this,
thank you the legend of electronics😎😎😎😎😎😎😎😎
the best arduino tutorial in the whole world
i want to taste your strong black coffee😁😁

[richterxxazula]

Mr. McWhorter is one of the few who is so bent into getting his audience to learn, gets to the bottom and under the hood to present the concepts so that they look and actually feel reasonably manageable.
I am loving every tutorial, now at number 41, the only regret I have is not finding these tutorials earlier. I needed them years ago!