Arduino Uno R4 WiFi LESSON 29: Create a Bouncing Pixel on the R4 WiFi LED Matrix

Pick your Sunfounder kit up so you get the same results I do:

You can pick up the neat jumper wires I showed in the video here:

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 video I show you how to use the Arduino uno R4 WiFi built in LED Matrix. I show how to create bouncing pixel on the LED Matrix. Enjoy!

#arduinor4wifi
#ledmatrix
#tutorial

[Piyush-wvjr]

Hi Sir I need your help I have a school project and I have to learn Arduino Uno but sadly I do not know where to start
I really like the way you teach and you explain every single thing very simply and in a way that is easy to memorize

[bigbearuk]

Hi Paul just to let you know i have only just been able to get my kit in the uk and its so much more expensive than anywhere else. So i have some catchin up to do. THANKS FOR THE GREAT LESSONS THOUGH.

[fungaifakazi]

Bringing our new, ...legendary, Top Tech

[larryplatzek]

This another Great lesson and precursor to a pong like game. Thank You for your Time.

[philluvschips]

I am Legend, I don't know why Youtube won't post my link ? I made the bat 3 pixels long and added 3 lives and a score.

[anagramfive]

Hi Paul! A very interesting lesson today. I must confess that I had the basic idea about how to solve the homework, but, sadly I couldn't make it to work. I was doing the exercise while I was watching the video but I decided to start in the line 0, column 0. And starting like this, the sketch has a problem. The pixel got stuck in the 0, 0 position because just when it starts, the condition xPos<=0 and yPos<=0 changes continously the direction of the pixel. Same if only one of the start values is equal to 0, the led only moves in a row or in a column. Is there (I thik so) a way to avoid this little problem?

[alldaypancakes]

Hello paul mcwhorter i had a bit of a problem that maybe you can help me so i wanted to use the version of open cv you showed in your raspberry pi tutorial but when i installed a new os to my raspberry pi 4 it had python 3.11.2 and it dosent support 4.6.0.66 version i wanted to do a virtual environment but thony dosent support virtual environment so i try researching but i couldn't faind anything and it dosnt help that my English is bad i would be very thankful if you can help me love the vids keep up the good work ❤

[richardsstark]

I must admit I needed help setting up the push buttons to control the up and down movement of the paddle pixels. I'm still having trouble getting my head around the coding for a toggle push buttons. Because of my slow reflexes I made the “paddle” 3 pixels wide. Also, with the help of @jeff_wild, figured out how to generate random integers so the starting point of the bouncing pixel would be random each time the program started.

[robertschuldenfrei]

Follow the above link to my homework.

This comment was set up to report my comment issue to YouTube/Google. Rather than disappearing, this comment "stuck." I do not know why, but sometime in the next day or so I will do the homework and see if that "sticks." It is a YouTube problem, not Paul's channel. If Charlotte Swift sees this comment @DrDave327 said you have some insights on how to avoid getting deleted by YT?