Arduino Uno R4 WiFi LESSON 18: Controlling RGB LED with an Arduino

[@stevendemonnin2025]

Thanks!

[@paulmcwhorter]

Thanks, I really appreciate the support!

[@techcdrive1702]

Saved Liked Shared, loving this series, awesome

[@310765]

Awesome, thanks Paul 👍🏼

[@ryanholt2509]

Awesome lesson!

[@nashvaughan3175]

What a legend. Might have to order one of these boards so I can follow along.

[@robertschuldenfrei2402]

95.99 USD well spent. Whether you want to advance your career or just play with this stuff, you would be hard pressed to find a better way to spend your time. I am 81 years old, so my career is long gone, but I enjoy learning and Paul is a great teacher.

[@scottwait3585]

Thank you Paul!

[@LorisHW]

Homework for Lesson 18 and 19 are done and on my channel. TOTALLY IMPOSSIBLE to post the link here. Probably will stop trying to post because this is getting frustrating. Thanks for the lessons Paul!

[@paulmcwhorter]

So sorry for the difficulty Lori. What I fear it seems like our most longstanding channel members, who have been posting homework links for the longest seem to be the ones getting hit. I worry that youtube is counting links, and when a lot of link have been posted, youtube concludes the person is spamming. So, the people who are contributing the most to the community are being tagged. I hope that is not the case. Charlotte seems to have figured out a way to post links again, but not sure what she did. Thank you for your work.

[@LorisHW]

@@paulmcwhorter Yes - based on my reading of YT rules, I have now been designated as a "spammer" on your channel. So I will not be able to post almost all of the time. Occasionally, it will let a post through but when I try to do it the same as the last time it worked, it will not allow the post. Thanks for the great lessons Paul!

[@peterdegraff8032]

thanks

[@donpage4326]

Hi Mr. McWhorter I got the Homework 17 to work! How do I send a picture of my program? Thanks Respectfully Don Page

[@patrickfox-roberts7528]

👍👍👍

[@bigbogeyface]

Here is Charlotte's most excellent stack of homeworks: kzbin.info/www/bejne/rKqZp5ZmisSUbLssi=tiQyQn2F35olIMT2 BBF drops a huge stack of papers 📃 into Mr McWhorter inbox 📥 tray then runs out of the room before he can say anything 🏃‍♂️ 👋😄

[@jameslewellen150]

I did the homework, although I still cannot leave a link to the video due to KZbin taking my comment down. Still don't know why.

[@paulmcwhorter]

LEGEND!

[@robertschuldenfrei2402]

Since this course began, I have had to struggle getting KZbin videos to stick. Here are a few things that SEEM to help. Make a copy of your comment as a .txt file that has the KZbin link. Keep trying to paste it into a comment here every hour or so. When you make your video note that KZbin has approved it for publication. That sometimes takes a while. Make sure you don't use copyrighted audio materials; that's a big no-no. I have never had a video not get posted, but sometimes it takes DAYS!

[@robertschuldenfrei2402]

SUPPLEMENTAL lessons in real time; are you planning any new ones?

[@larryplatzek9017]

good lesson as usual, what is the right name of a 4 pin RGB led? push the like button!

[@pathvalleyrailroad9277]

I have discovered that you cannot mix analog and digital write commands in the same sketch.

[@robertschuldenfrei2402]

Unless I am reading your comment in error, you can mix analog and digital write. Here is a section of my homework code: void loop() { digitalWrite(yPin, 255); Serial.println(msg); while (Serial.available()==0){} inColor=Serial.readString(); inColor.toLowerCase(); if(inColor=="red") { analogWrite(rPin, rPrime); analogWrite(gPin, zero); analogWrite(bPin, zero);

[@richardsstark9825]

I also could not mix analog and digital commands. Robert, what are you referring to with yPin?

[@richardsstark9825]

I also could not mix analog and digital commands. Robert, what are you referring to with yPin?@@robertschuldenfrei2402

[@robertschuldenfrei2402]

@@richardsstark9825 Hi Richard, I wanted to demonstrate that you could mix analog and digital write statements. I took the code and breadboard from the homework and added a yellow LED connected to a non-PWM pin. Added the required pinMode(yPin, OUTPUT);. Then I did the digitalWrite(yPin, 255) you see in the above code. Small note: did you spell digitalWrite with a capital W? If you are still having trouble, show the error messages here.

[@johanverheyden8828]

I did my homework, i’am legend, but how can i add it in the comments?

[@drthik1]

kzbin.info/www/bejne/faSUfp5pZ8aoraM

[@paulmcwhorter]

LEGEND!

[@shineeyman]

kzbin.info/www/bejne/p3a5YWStqNmagsU Everything is analogWrite because I was trying to troubleshoot why my LED wouldn't go back to being red after making it orange. Making everything analogWrite helped it. My yellow and orange don't look that yellow or orange but the code seems to be working properly!

[@paulmcwhorter]

LEGEND!

[@larryb6759]

Homework is at kzbin.info/www/bejne/f5-zZHd9o8mWmpo .

[@paulmcwhorter]

LEGEND!

[@robertschuldenfrei2402]

Homework for this lesson: kzbin.info/www/bejne/moe5fYmjlp2hq9E

[@paulmcwhorter]

LEGEND!

[@jeff_wild]

Homework for lesson 18: kzbin.info/www/bejne/iZfLfKOwmNh8fdU (2nd try) Red LED was so underpowered, I had to mute green and blue when mixing colors. Thanks for all your work.

[@paulmcwhorter]

LEGEND!

[@alistaircook1997]

awesum, thanks Paul. Homework for lesson 18, :- kzbin.info/www/bejne/jaDXfnyAnKmnfaM not easy to show true colours from camera

[@Tron_Starfighter]

Legend - kzbin.info/www/bejne/Znmqdaier9qXg68

[@paulmcwhorter]

Well done!

[@Adrian427]

Really enjoyed this one, Paul. Homework: kzbin.info/www/bejne/jqjLoqiviaxjY7s

[@paulmcwhorter]

LEGEND!

[@FreidonNasrat]

studio.kzbin.infoh22YDAlRvY0/edit Homework lesson 18

[@richardsstark9825]

my Homework kzbin.info/www/bejne/Z6urqKWpZ7-Xbc0si=WxGOkF4eP395nK7_ I had a hard time getting the colors picked up by the camera the same as i visualized them.