Arduino Tutorial 27: Understanding Pushbuttons and Pull Up and Pull Down Resistors

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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:

Also, you can get the Mastech Digital Voltmeter I am using here:

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#Arduino

[robjerome]

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.

[qstibhe]

Still watching in 2024 and still havin' a good time with the whole creative process. Thank you for sharing your knowledge and experience my friend, Semper Fidelis!

[coultercrooks]

Having binged these videos today, I would be dead if I drank the amount of coffee I've been told to drink

[daniellehwing]

You are not just talking to yourself, professor...
...you are talking to 241.000 of us!!
Cheers!!

[devlinaganguly]

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.

[Eduard-wgdr]

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 !

[jobeyene]

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.

[sonalighosh]

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"

[charlescho]

Aha! Now I understand what are pull up pull down resisters are. Thank you, Paul!👍

[ivancadena]

Paul, I just came across your YT channel. I must say that you're amazing and I have learned more from your videos than from a whole load of pages that do not care to explain clearly what needs to be done. Thanks a lot for your kind effort, Sir.

[MrJonjoe]

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!

[vinodkumar-mpfm]

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

[CR]

Paul,
It's always a pleasure to see you explaining technology-stuff on youtube!
Thank you for this!
Greetings from belgium (vlaanderen).

[jacklawson]

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!

[steveschaefer]

Thank you for these lessons. I have been teaching hs physics for 29 years and like the way you pull together all elements of stem into your lessons. I plan to start using arduinos with my physics classes. You have really inspired me.

[Kurtacuss]

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.

[danbishop]

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.

[jasonford]

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.

[ricardogomezlucea]

i'm having so much fun with yours teaching classes....

[MagoTonyMiami]

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.