Using the Arduino Uno R4 WiFi Built In LED Matrix. 

I have taken all your recent courses and found them to be the best educational experience I have had through the 2 EE degrees that I have earned. As an octogenarian I would love for you to conduct a course in circuit design. The world of electronics has changed a lot since the ‘60s, and an update/refresher from my favorite teacher Paul would be a dream come true! I hope you are able to produce a circuit design course for us fans.

Hello Mr. McWhorter/Paul, Thanks so much for this livestream. I am a mechanical engineer and I took many of your other classes as well as Arduino R3 class. These little drops of more advanced stuff for the R4 is an excellent idea and way to keep your older followers engaged. Also, that general electronics class would be awesome. Blessings from South Africa 🎉

Super Live "Rumble in the Jungle!" Somehow I had it down for 10PM on Saturday so missed it at 10PM on Friday. Watched it after the fact, but still got an amazing amount of knowledge about the R4 LED Matrix! As for mistakes while live coding I really think it has been a real help trying to catch the errors myself before you begin a compile. Thanks for all your hard work, really appreciate it. I now have a scrolling name tag!

Hi Mr. McWhorter. I hope the grands(grandbaby) are doing well? I watched the live stream and it was awesome learning how to control an LED matrix! I feel very blessed to have found your channel 5 years ago.

Hi Paul! Keep doing the live classes, please! For those of us who did your previous series with the R3, some of the initial classes have similar content, so the live classes offer something new! Thanks for all the hard work you do :)

Thanks Paul...really appreciate the deep dives as we are being introduced slowly via the official tutorials....really does help to keep the more experienced in the game ... great idea 💡

Paul, I got everything to work. Love how you just sort of futz your way through everything problems, errors and all. That's real life and it keeps me thinking instead of just copying code. Nobody but nobody models troubleshooting like you do.

Great , really enjoyed. Looking forward to future videos. I got the sunfounder kit for the other course, glad you have decided to do a little more advance, fast paced class also. Thanks again. Doug C

Recently found this gem to get some help with my arduino project. Loving so far, keep up the good work💪

Hello, Arduino Uno R4 WiFi was at once sold out because your excellent Tutorials! I wish you all the best , good health and very much success, Hans from Germany !👍👍

Loved it I am learning so much and having lots of fun along the way!

This was a great class, thanks Paul!

Woohoo It works fine !!!!!!! Yipee. Missed the live stream but enjoyed watching it and following along. A really good tutorial with plenty of uses in the future, I would love to follow along with the Electronics Design classes as well as your special Tutorial on American Beverages. Thanks and See you next Thursday and have a Great weekend. Chris

Thank you Paul, please continue the good work really appreciated

I love your method Paul. Thanks again!

Thanks again Paul, yet another great lesson!

This was an excellent class.. Somehow I missed this one.. Found about when I saw your second one.

You do a really good job considering you are a one man show : - )) I really enjoyed this type of session and would be happy to see some more like this. Thanks!

Hi Prof. Paul, this was a great tutorial. I got everything to work as you suggested. I would also like to do the circuits class if you do it. I've got all the electrical equipment, oscilloscope, dc. power supply, etc. So count me in!

excellent as always

I would be interested in the electronics class, if you run one. Thoroughly enjoy the R4 series.

Enjoy the lessons. Circuit design classes would be fun too!

Might be interesting in livestream to do some class/library creation? Wouldnt even need to put them in separate .h and .cpp tabs though that could follow on.

Your tech is beautiful !

I love the intro in all of his videos.

I don't know how long in the future it would be if it ever happened, but it would be cool to see some of the DAC and DSP functionality of this new generation of ARM-based Arduinos support.

suoercool!! Hope to setup my arduino to my PI so I can work on both tutorials contemporaneously! TXS a lot Paul!

Great lesson, sorry I missed the live stream. I have been goofing with setting up a keypad. This looks like the same procedure. Like Brian commented, I too am surprised that the matrix was defined as an 8x12 but actually complied when run as an 8x8. Thanks for the surprise lesson.

I would enjoy an electronics class

Great live session. Electronic class would be great.

Just caught up with this. Have got my name running across the matrix, Great fun, love to keep learning. Hope you do manage to run an electronic circuits course. In my past life at work I often used to construct various circuits to connect lab equipment to the early desk top PC's. Self taught so not always done correctly i'm sure. Would be good to be taught the correct way. Thank you for all the work you put in.

Most Useful

I followed all your courses " New Arduino " : I am very interested in these complementary lessons, especially in the differences between UNO R3and R4 and in de WIFI-application ! Thank you Paul, Johan from Belgium

LOL... I am watching the replay and as you used to say you could hear me yelling "Add some more columns".... LOL

Great video, would love to do circuit design Robin from downunder

Circuit math and op amps would be helpful

I love your lessons! They are great. I wondered how long a string message could be displayed in one step so I put all of John 3:16 in a string and it worked. Of course, I could use more strings to lengthen the message.

wonderfull proyect

I really enjoyed this ! Please do circuit design as an advanced class. My 4 channel Rigol scope has been collecting dust for far too long.

Excellent

Hi Paul, love your classes. I'm out here in beautiful Hawaii, not too far from world famous Waikiki beach. I can't wait for you to cover WIFI connectivity, especially to an android phone. As for something closer to what you are covering now, how do I read data from a matrix like in this class with the data "HI", and putting that data onto the Arduino UNO R4 WIFI matrix. I think I have a brain freeze from trying to do too much different things. Much mahalos (thankyous).

Thanks dude, dont know what they were thinking just put a color 240x320 OLED on there !

Hello, Mr. McWhorter! I like the idea of streams. Have you also thought of releasing all of the lessons preemptively on your patreon? So that people who already know the basics, or have more time to study, than one lesson a week would be able to go through it really quick?

circuit design would be great

or circuit design classes

You are great Blessing from india

Any chance of including some Arduino cloud stuff? Love all your videos thanks for the effort.

Would absolutely love to take a circuit design and analysis course from you! Most of the available courses on-line go too fast through the beginning concepts.

Hi Paul. Can one do robotic without doing Andrinu and Rasberry

Thanks, Paul! (With the annying Icecoffee 😋😉). Now we wan´t to know how to code a Button Matrix, ..for example where you explain "byte buttons[NUMROWS][NUMCOLS] = , and "byte rowPins[NUMROWS] = {?, ?, ?...etc}; byte colPins[NUMCOLS] = = {?, ?, ?...etc};", thx. 🤗

I've been programing by using the mobile phone version of ide. The trouble i have is finding at the functions available in the libraries. What editors can i use to open the .h files?

well done, mistakes and all. we all make them. How much does the control room job pay? lol. Love the live streams.

hello mr i follow you from nice town south of france

I thought you would have used bool insted of byte my understanding is that a byte is 8 bits while a bool is 1 bit

Can you help me with a rasberry pi pico project I have been using you videos but having trouble

Great lesson, Sorry couldn't join you live, would love to see the matrix controlled using HEX values rather than a large 8x12 array, would hep improve my maths as well :). For scrolling put 3 spaces first so it scrolls from off screen left. Can you help us with the Wifi setup, been trying the Arduino Secrets method but it's just not happening.

The Arduino IDE has always had auto indent to make your loops and functions more clear. Did you turn yours off somehow? Why? IDE 2.x now has the vertical lines that make seeing sections and end curly braces clear. Also you can click tools/auto format to make your code more readable. Also you used myRow and myColumn as names for both global and local variables. While allowed it is probably not the best practice. While those of us that have been around a while understand variable scope it might confuse your target audience. Paul I get the coding live problem. I rarely code live in my classes and just put sample code on the screen and explain it. I usually have 4 or 5 tabs/windows of code as I progress through the lessons. My typing skills are not good enough plus the tabs keep me on track. I know you like to "plant" some errors in your code to show everyone makes mistakes. I rather spend the typing time troubleshooting my students work. Not something you can do on a video. Thanks Paul for all you do.

Paul, you had myRow

The Amazon link you provided indicates that this new Arduino R4 WiFi controller board is using the ESP32 WiFi/Processor chip from Espressif Systems in Shanghai, PRC. They also make little boardlets with either ESP32 or ESP8266 WiFi/Processor chips. When I was playing with those boards a few years ago, a version of MicroPython was available. Does this mean someone is working on a version of MicroPython for the Arduino R4 WiFi board as well? Any info on this? Maybe classes in MicroPython on the Arduino R4 WiFi from you? Are these products still being sold to the US and Western countries or are they banned by import/export restrictions? And how well is Espressif Systems doing economically given the huge economic downturn (depression) going on in China? While the ESP8266 and ESP32 are impressive chips, they were designed and built using technologies they (Espressif Systems) had no license to use. More proof that China does nothing to support or protect the intellectual property rights of foreign corporations, making their products a lot cheaper than Western corporations that must pay such licensing fees.

Looks like I messed up with my notifications settings here, cause I'm not getting notified when live content is on

why there is a plastic over those LEDs, I'll have this board in the next week. Miss the matrices. Yeah love to have livestream.

Set up Tina?

Looking at this code you have for(myColumn=0;myColumn

Hi from kenya

why did you not activate all 12 colums

I was so happy to see this livestream this morning when I first opened up RU-vid (thank you, Paul!). Indeed - the 96 LED Matrix on the UNO R4 has invited a lot of curiosity! I've been working on a related Python project stemming from that curiosity for the last 3 weeks that helps users to create animations on the R4 LED Matrix and thought I might share it with you folks. Here's a link if you're interested: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OO9LohOUf1w.html

Delay is because you had row set to =

I folded up like a cheap walmart lawnchair on this one hahahaha , i suppose its to be expected with only 3 lessons completed and 0 coding experience. Did make it to getting the 4 corners to light up as well as the top row but got lost in the code.

WARNING!!! I tried to update the firmware on my UNO R4 WiFi, with the Arduino IDE and now my UNO is corrupted and no longer usable. Now I have my Elite explorer kit and no uno R4 wifi. NOT HAPPY!

As you know, I am having issues with comments not appearing. Would someone please reply to this comment. I got the R4 to do its thing. Thanks! I caught most of the program bugs as I was a programmer by trade before retirement. I would be interested in circuit design.

I see on the lib include you are using " " delimiters here and not the usual < >

also I am a newbie

Would support your channel. But, the recurring black coffee is too monotonous.

Sorry someone else caught the error I am kinda late

Minor point: arduinoGraphics apparently cannot handle accents.