Arduino Tutorial 27: Understanding Pushbuttons and Pull Up and Pull Down Resistors
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- เผยแพร่เมื่อ 22 พ.ค. 2024
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Incorporating push buttons into an Arduino project can allow you to take your projects to that next level. Switches are pretty simple, but you do need to understand how to use pull up and pull down resistors in order to get your circuit to operate reliably. This video explains the concepts in a simple manner.
You can get the kit I am using for this series at the following link:
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Also, you can get the Mastech Digital Voltmeter I am using here:
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#Arduino - วิทยาศาสตร์และเทคโนโลยี
Having binged these videos today, I would be dead if I drank the amount of coffee I've been told to drink
you would die smarter, lol
LOL this is so true but I love Paul's bedside manner. Hopefully I won't be dinged as I am an espresso/latte drinker... sorry gotta have it HOT.
Drinking game. Every time paul tells us to drink coffee. Take a shot. Actually DONT do that until you've put me in your will
I am 71 years old and my grandson is 12. This old dog along with my grandson is trying to keep mentally stimulated. Because of Covid I have my 12yr old Grandson living with me as his mother is a nurse and being exposed to the virus on a daily bases. We are really enjoying the tutorials.
Wow, that is wonderful. What great memories you are building with your grandson. My grandfather taught me so many things, and I have many wonderful memories of him. Well done!
That's really great.
oh hey,this is great.Rob. I want to do this to keep myself aleays young and energnic
You are not just talking to yourself, professor...
...you are talking to 241.000 of us!!
Cheers!!
Sir,I have learnt coding on arduino just because of your tutorials,and what I have observed is that in the other tutorials,they simply give the code without explanation,but because of your explanation and your funny actions,I have completely learnt how to code.
It'is in fact absolutely important to have a written strategy.
yeah
totally agree
I take notes from these videos, I actually learn a lot more than even coding boot camps.
I am 12 years old and your videos have sincerely amazed me so far. Arduino was already my favourite hobby but you helped me improve so much. Thanks !
Thank you sir i am 13 years old and have interest in engineering u helped me to bring my dreams to life
I wish every student gets a teacher like u
Excellent! Keep it up and you will go far. You might even invent something that changes the world.
For the first time in my life followed a lesson for the entire day from 7 am to 7 pm, none stop. I usually cannot stay focused for 5 min max due to ADD I have, but your way of teaching makes me not to think anything else except listening every single word coming out from your mouth and remained concentrated on the computer screen.
I also have ADHD and dont take medication for it. He is an amazing teacher, there hasn't been one episode yet that lost my attention.
Hello there. I hope you're doing well.
People with ADD or ADHD have a characteristic where if they are interested in a topic they will "Overfocus". That might be the case for you.
Although this is good, make sure to take breaks so you stay healthy. If I don't watch out, I generally forget to eat.
Haha idk if I too have ADHD or smth because guess what! It’s the same for me. I find studies and concepts boring but somehow I’m just too hooked to these videos. Even the theory gets me hyped. It’s come to the point i wake up at 6am and just follow the lessons the whole day on weekends. Please don’t ever stop making videos and stop teaching. Lots of love from India ❤️
Paul,
It's always a pleasure to see you explaining technology-stuff on youtube!
Thank you for this!
Greetings from belgium (vlaanderen).
sir , i am a student in high school and i have been learning cording from you from last year and to my surprise i have left the others who are learning for a couple of years back just because of you. thank you "SIR"
Keep it up
I have a doubt that can we display two different output on lcd(16*2) with the help of arduino and two push buttons can you please give me the overview how to do this? it would be really helpful if you reply.
Thank you
@@jsha6604 Looks like someone has a homework project that they want someone else to do for them ;-)
The tutorials are really interesting and learning new concepts in each in every classes. Never seen a tutorial which goes into more details. Teaching method by Paul McWhorter is really great. Keep up the good work.
i've recently found this channel and i'd like to thank you for your great professionalism and passion: you are definetly the teacher i've always wanted to have.
I've been wrapped up in some other tasks but have finally found some time to continue on with the New and improved Arduino tutorials I do appreciate all that you do in these videos. Thanks again for your valuable time.
THANK YOU so much for going into detail on these concepts! I've always heard people say "just use a pull-down resistor" etc. and could never quite understand explanations of what they were and why they were used before this. I love your videos :)
Paul I am a fan of your 'Pen and Paper' mode. I just so love it when you explain everything first....it just make everything so easy ahead. Thanks. Please keep teaching us ahead and ahead. Thankssss a ton.
I love the way you teach, you understand what a student is struggling with, so you show everything how does it work and why. Also what i like the most is when you debug problems. Hold your breath guys, because we are lucky to have amazing lessons from professor Paul . 🍎🍓
Unlike many other tutorial videos, you go deeper into explaining the details of how electricity flows and how the voltage varies depending on each scenario. I am a big fan of this way of teaching. Thank you sir!
Keep up the great work. I like that you show the schematic of what we are doing. Understanding what you are doing is what it takes for me to understand.
This is the most excellent tutorial series I've ever watch in my live. I've learned proraming Allen Bradley PLC's in my Electrical Engineering class. Now that I use more of my electronics than my electrical skills, I wanted to learn how to program Arduino's too. fortunately, I came across Paul's tutorial. That was my best luck!!
Thanks a lot Paul.
Great lesson! Important definitions for Pull-Up or Pull-Down. Cheers from New Zealand. The circuit [LED hookup] took me a few minutes to debug. Looking forward to #28
I liked how you explained the component in a deep detailed way
Haven't watched your videos in a couple of years. Your lessons hold up well over time. Thank you.
After watching this video yesterday I had an idea of a project that would put most of the things you have taught in these videos to work. I was able to have an RGB LED light have it's color controlled with a single potentiometer and have the push button switch color to adjust and then I was able to use three more buttons to store up to two RGB color combinations and was able to recall them when I wanted to. I showed this some people and they all rolled their eyes and called me a geek. I couldn't be more proud hahaha. Thank you again for the awesome videos.
I tried learning pull up and pull down resistors before from a book and couldn't make sense of it. This explanation was so easy to follow. I now feel I fully understand it. Thanks!
Thans, Paul. This is my first step in trying to understand pull up/down resisters.
Paul, so far up thru 9:48, and your all time BEST explanation of pull up and pull down circuits and how each type will send a different reading to Auduino, I will now continue with Lesson 27 !!!
Sorry you had trouble on the LIVE broadcast this morning,
I love how you explain in-depth how this all works. Other videos on arduinos tend to just tell the viewer "do this" and "do that" without explaining how it works. I think those videos tend to get more views because viewers want to click videos that they think will explain the topic in the shortest period of time. However, taking the extra time to watch your videos gives a much much better understanding of how it all works. Thank you :)
Had a bit of struggle with the switch, turned it other way, no joy. FInally had to press harder into the breadboard. What a joy to see the idea in action. Hope the lessons go beyond hundreds.
Hi Paul, stumbled across your channel a few weeks ago, and I have to thank you for the clear and insightful lessons, I'm actually struggling with a pushbutton so im super excited about the new vid. Cheers from Cape Town, South Africa!
I am also from south African (GP).... I love this channel, helps me a lot with my varsity projects.
Good explanation for the use of the pull up and pull down resistor. Really enjoy these projects. Thanks Paul.
Sir, I learnt a lot through your classes. It is great that you teach through the basics. It helps clear up misconceptions and makes complicated projects feel easier
Hey Paul, I've been working through these courses and must say thank you so much and I for one give you a big thumbs up for teaching the math and other theory. Being a guy that slept through my High School days I have a lot of gaps and I appreciate the foundation along with tricks that you are presenting. I've learned a lot so far along with coming up with some fun technique. For example on this exercise I used your trick to read voltage and then set up serial output showing exactly what is going on "4.70 1" , 4.7 being volts and then when I push button, "0.00 0" Super cool, Learning a LOT! Thanks again, looking forward to moving forward with the rest of your classes.
I came across this video and thought how in the world can a video be half an hour on this one topic and not be either dry or repetitive. All I can say is WOW! Outstanding instruction. I'm going to pick up a kit and work through all your videos with my kids. Awesome work and thank you.
Thank you very much Mr. McWorther, I love these tutorials, I did this and it was very exciting, you also answered my long time question of what pullup and pulldown resistors were!
Your never alone Paul! Great content as always. I am really enjoying this and the NANO projects and I might get involved with the nine axis as well.
Thank you so much for these lessons, Mr. McWhorter! There is so much to learn before I can take on those robotics and AI lessons, but I watch your videos everyday and do the homework. You're doing me and the world a service.
P.S. I love learning the fundamentals like the physics of what's happening. It's important for us to know.
I'm getting an Arduino for Christmas (4 days away) and have been doing these lessons for the last few weeks. I like how you present things in bite-sized pieces and particularly how you show yourself thinking and figuring out stuff yourself and making mistakes and showing to solve them. I think too often people think engineers, or people in any profession for that matter, don't have to actually work, think and struggle at times. Your lessons are great!
i'm having so much fun with yours teaching classes....
I've been watching your tutorials consecutively from Number 1. I've been saving all the program exercises both done together and assigned homework. I've also made documents, notes and drawings with graph paper too for each lesson. So your tutorials are not made in vain.
Awesome Paul! . I am a structural engineer and just picked up this as a hobby, and am loving it, if you could make me do then I am sure a lot of others can also do it.. haha.. thanks again.. love the way you mix up pun , warnings, caution etc into the lectures. The kid inside of you is very much alive and I love it. BAAAAAM!
It's great to just follow along at mine own pace . It make learning a whole lot a fun Thanks for doing these tutorials again for us.
Glad you like them!
You're just amazing just now finished this video.. You're a great teacher please keep doing this good work forever. Wish to see more videos..
In short from this second am your fan sir !! 😊
The mist is clearing!! I am beginning to see the light! Thank you Paul, great video as always!
I AM LEGND! I did the toggle switch! I think I'm really grasping the concept of it. I was able to make the program in like 2 minutes!
I'm really happy I was able to match the real circuit we built with the diagram you made! Really nice lesson! :)
A lovely simple session after the equation burn from the last one! Thanks Paul!
It took nearly all day to do the homework but it worked!! Love the videos and I am doing them with you. Thanks for some of the best content on TH-cam!!
Hey Paul, I really appreciate your videos. Thank you for taking the time to make them.
Thank You Paul !!! Been here since episode #1. Loving this series, Stay Safe Paul. =D
I was not able to do this before you teach me how to do it and actually I see this video three time to get the full view of how this code works...I really enjoyed this one....Thanks.
Hello, I'm trying to learn how to use Arduino and you've been very useful, thank you so much for all the help and I'll most likely end up watching all of these videos multiple times. Thanks again!
Thnaks Paul a lot for your effort.
I really appreciate the material you offer for all of us.
I will continue the series...
Tomorrow I will start with the the 28th.
great lesson, but the instructor makes them all GREAT. I really enjoy the lessons so much that I watch them twice, first time just to see what the lesson brings and then work on it the second time around, thank you, thank you, thank you . . . READY FOR THE SECOND WATCH and WORK ON IT.
Did this lesson using ESP32 and VS CODE. Lesson helped to cement Pull-Up and Pull-Down Resistor in my mind. Thanks
Glad it helped!
I it is getting time to call it a night when I start making silly mistakes. I did debug my code and it works great. Thank you Paul, always enjoy your lessons and I am learning a great deal here again thank you.
I've been watching and learning from your many videos over the past few years. Just wanted to say 'thank you'.
I appreciate that!
You are trying to teach the basic things which is really helpful. Thank you Paul.
Thanks for Sharing, Sir. Was looking for a toggle button concept which I found in another video of yours. Came here to see the wiring. Fritzing is a great tool for drawing circuit diagrams to show wiring.
Paul, I didn't realize that a pull up and pull down resistor acted that way with a push button. Nice!! Manny from Puerto Rico
Love this video and it added so much clarity on what pull up/down is. I have been seeing "those terms" referenced in many places and it was kinda fuzzy to me. As I'm new to the circuit side of things all I can say this was needed education. Thank you Paul!
Glad it was helpful!
Hi Paul...Greetings from Great Britain. I've been a professional sparky for twenty-odd years, and had never heard of this type of switching before! Congrats on another barn-storming description-fest that explained everything perfectly. Fair play to you, mate.....YOU DE MAN! There's no other Yankee git who can explain this subject like yourself...lol. Seriously though, thanks a lot, mate...and keep 'em coming! Regards from the Grumpy Limey.
Very fun with the button. I am starting to "see" the world different now. The tv remotes. The control boards in furnaces, etc.
Thank you sir!
Have fun!
Loved the push button lesson and getting more familiar with if statements.
Thanks
Yes! Another Arduino video in the series! Oh, speaking of ice coffee: throw a half a glass of ice, shot of espresso (or a similarly strong coffee or a tablespoon of instant), pinch of salt into a blender (add sugar to taste). Blend to foam. Enjoy a fantastic frothy beverage. :)
Great content Paul! Keep em coming!
Thanks for the lesson! I'm programming a control box for some flashing lights and this lesson was just what I needed!
Practicing Mechanical PE here. I found this series and started watching it to learn how to program in a type of C (I'm a Fortran guy). Wonderful series that has information for persons of all levels of experience. I feel lucky to have found your channel.
I get the feeling that you teach as a vocation probably high school or maybe community college. I'd not be surprised if you were a 'master' teacher. I like your technique, especially the repetitions of both correct and incorrect (subsequently corrected) actions. Also the gentle handholding with new concepts and the gradual weaning off of detailed instructions/demonstrations for concepts that should be fluent. Great pedagogy.
I've overseen and mentored many new engineers. Many recent graduates with whom I have dealt had good technical foundation but lacked practical foundation. The process of understanding a problem, investigating viable solution options, choosing the option to use, and troubleshooting and fine tuning the result seem to be given very short shrift in engineering schools. You manage to incorporate many of those steps in your lessons, though. I wish there were more teachers like you out there. Thank you very much.
Confidence level is increasing for every class I attend. Thank you very much Paul.
I have been using Tinkercad circuit to do the experiment. Its great time to be alive to be taught teachers like you and have platform like tinkercad where we can do the stuff even if we don't have.
Hi Paul. I’ve also binged on your Arduino videos and I’ve learned such a lot. I was a programmer many years ago and had not used my knowledge for a long time. Your videos have reignited my interest in programming and I’m really enjoying the process. Thanks and keep up the good work.
Great to hear!
Aha! Now I understand what are pull up pull down resisters are. Thank you, Paul!👍
That is really good, because pullup and pullDown resistors are very important in electronics.
Samuel
I've been watching from lesson number 1, and i've learned so much! I especially learned to hate the automatic curly bracket addition, too.
For the first time in my life i find coding fun and easy . Bcoz of you am able to enjoy and learn you things . Thanks so much sir
I love it that you integrate the Arduino coding, math, and basic electronics.
Skipped ahead several lessons for this one. Glad I did since I didn't know about the need for a resistor when using the pushbuttons.
Have 8 LEDs and a Sketch that displays various "light show" animations (bounce, sweep, random, etc.). Tonight I added a pot (Lesson #12) to adjust the speed of the animation. And added two pushbuttons, one to cycle to the next animation and a second to toggle inverting the animation. Worked out great.
Thx!
Best tutorial on the Arduino programming!! Learned a lot and have started to build my own projects!
Omg, thank you for taking time into explaining this at a lower level, thank you!!!
Wow sir! Thank you so much for teaching us the science behind these components. It makes my concept crystal clear which ultimately makes me so much more confident! You are not like the other TH-camrs who just write down the code, and that's why you are the best!(Also, you make learning fun with your humor :) )
Pull Up and Pull Down Resistors, simple to understand when it is well explained. Thank you!
I have no words for you. Your explanation of each class just Wonderful to me. You have great capacity to easy explanation.Thank you very much.
So nice of you
I have been binging these tutorials for weeks. I can hear the sounds of ice cubes clinking in your coffee while I sleep.
i keep coming back to your videos and am learning so much but am enjoying it!
I have done pull up and pull down previously elsewhere but didn’t get nearly as clear understanding as your explanation, thanks
Thanks for the great video! Your lessons are very easy to follow, and your explanations are very clear. Cheers!
Amazing content, hlped me understand tthe concept and also see the practical application of the concept, thank you!
Thankyou Mr.McWhorter! At first our button did not want to work, but then it did. Also, we spotted then mistake you made with the dot and comma in the pinmode before you did and we were like, "Come on its right there! 🤣" very funny. Your lessons are amazing. Thankyou!!!!! :D
Thanks so much Paul for your videos. This is the best button video ever made! I have watched this a few times when I need a refresher. I wish I had you as a teacher when I was in school. I have you now and thankful for it.
Great to hear!
Thank You Sir McWorther for all the Arduino Tutorials you put on TH-cam. I live in Montreal region, Canada, my first language is french. I can say that your english speaking for people who's first language is not english, is excellent and clearly understandable. I will go up the tutorials until No 68, then get Python for beginners. Merci beaucoup monsieur, c'est toujours un plaisir de vous entendre!!!!
Fantastic!
Another great lesson Mr. Mcwhorter. Thank you for all your help. Truly a great teacher!
This one took me a long time to debug. I bridged my button over A and the - column instead of the gap between E and F. Silly me forgot the - column is all connected. The button was rendered useless since the circuit was always closed even if the button wasn't pressed. Mistakes are the best lessons outside of listening to you Paul.
Very easy to learn, the way you are explaining is perfect. in the real sense of the word, You are the best teacher. thank you so much
Wow, thank you!
BOOM! Made that toggle via code, had to whip out the old IF ELSE and WHILE. Thanks Paul!
I wish i had a PROFESOR like yourself when i was young at high school ....THX!!!
TY for explaining that damn Button internal connections. Driving me crazy!
Please Continue uploading,your tutorials are amazing.
❤️♥️♥️💚💙💜
Love from India.
Thanks so much Paul, Thanks to you I have completed the homwork that you gave us with no help
Hi Paul, I use a variable I called flag which has the initial value 1. Every time the push button is hit, then flag=-flag with a short delay (so arduino wouldn't switch continuously), to switch flag value between 1 and -1. Then I use the structure "if (flag==1) else" to activate the LED. This works great!! Thanks a lot!
For something so simple, I've really struggled understanding push buttons. This is the only video that helped me. Thanks!
Actually the toggle push button is a really complicated concept. Spend some time on this lesson until you really understand it. it is critical for many programming applications.
have not turned blue from holding my breath yet. I appreciate your teaching approach. Again, thank you.
Well demonstrated and presented. Big Thankyou.
Thanks for the lessons Paul.
Thanks for this series I really enjoy it!