Pull up/ Pull down resistor - explained ( with calculation )
Ғылым және технология
Guide to use Pull up and Pull down resistor in a digital circuit. Calculation of these resistor values explained with a digital logic gate. And the things to avoid while implementing your digital circuit design.
Calculation further explained here - www.gadgetronicx.com/guide-pul...
Check out - www.utsource.net/ which is a online platform for electronic technicians, Makers, Enthusiasts, Kids to find electronic components
Video by : / frankdonald05
Пікірлер: 268
Assuming 100uA as in your example, you would use a 10K not a 40K. You only want to drop 1V across the resistor, not 4. Vcc - Vin / Iin. (5-4 / .0001) Don't forget different values of current for sourcing vs sinking inputs.
@Gadgetronicx
6 жыл бұрын
Yes you are right. Apologize for the error, thanks for pointing it out. Unfortunately KZread has removed the annotation feature have added a card stating correction in calculation.
@karenma7704
5 жыл бұрын
@@Gadgetronicx i don't see the card
@mahdilaloui711
3 жыл бұрын
true
@westleyphilip814
3 жыл бұрын
I know I am pretty off topic but does anyone know a good website to stream new tv shows online?
@trentondylan1281
3 жыл бұрын
@Ezekiel Kole Yea, have been using Flixzone for years myself :D
Great explanation and easy to understand! Keep up the good work! Thanks! You need to lower the volume of the background music to 10% of your vocal though.
Thank you ! This video explains the use and application of pull up / pull down resistor clearly.
you are the best one who did explain the pull-up and down resistor
good tutorial man! but at 3:54, why is 3V and 2.5V combination an undefined state? Isn't this a logic high in TTL? or does it mean that induced voltage could vary rapidly and lead to 0.8-2.0V zone voltage?
hello do i need pull resistor even if the signal input comes from another ic sending out clock signal...or just use the pull resistor when is a mechanical switch?
Thank you, your voice and this video was lullaby for me and thank you, for keeping the music volume down so I can hear the important things you're talking about.
@Gadgetronicx
2 жыл бұрын
You’re welcome 😊
Great video, i have a quick question so i have a raspberry Pi 3 and i connect the pull resister of 4.7k and to the I2C Bus i have 34 devices that works well, when i connect the final 6, i start loosing data over the bus, does this mean i can lower my pull-up resistor to 2.2k so that i dont encounter data lost?
Great video/tutorial !! Thnxs for sharing ! Please turn the music a little softer for your next video.
Nice video you explain in a clear way the arguments thank you a thousand times👍
Thank you for explaining this topic in depth. :)
music too loud
@Gadgetronicx
6 жыл бұрын
Mahmoud Kortas Sorry will take this feedback :)
@augustkravtsov
6 жыл бұрын
I never understood the use of music in those type of videos. It appears so pointless to me.
@mkaberli
4 жыл бұрын
That and the speakers talks too fast. Not enough time for slow minded people, like me, to absorb the information.
@pjandryanadventuresruntime7692
3 жыл бұрын
@@mkaberli you can slow down the video speed in you tube settings, I always speed them up or down depending on delivery of the author
@ksawery6568
3 жыл бұрын
Nah it's perfect, just turn down the lights and bring out the neon sticks
but why do we need the resistor? Do we use it to avoid shortcut between the IO pin and the 5V? (but the IO isn't ground, so why?)
one of the best explanations, thank you... :) It 'll be even better if music was in low volume! Thank you again for this wonderful explanations.
This is the best explanation on youtube! Not only did you explain the problem - but also showed us how to calculate the different resistor values depending on the range of the expected logic level. Nicely done, Sir!
This video needs a few million more views. Seriousy. Everyone else just says, pick a big one if you want to soft pull, and a small one for a hard pull. This gave us the reason, and the math, even though, as soon as you said it, I realized, I should have seen that before hand. But, you know, most people teach you these circuits with ideal circuits in mind, so I had never thought about the input making a voltage divider, because well, when most people teach you, they say that inputs take no current, or so little you can discount it. While that is probably true most of the time, at least now I know how to properly pick a pull up/down resistor. You earned my subscription. I hope your channel does very well.
@Gadgetronicx
6 жыл бұрын
Thank you for your kind comment and subscription. Will continue to create more informative videos.
Wow .... I completely understood that. Great job !!
You are a brilliant human being. This is by FAR the best electronics video explanation ive ever come across. Thank you very much!
@Gadgetronicx
5 жыл бұрын
Thank for your kind feedback :) Kindly subscribe to our channel
How will induced voltage of 3V on one input pin and 2.5V on the second pin (3:50) produce an undefined state. Earlier in the video you said that from 2V to +5V it should be logical 1, so why wouldn't this circuit produce a output of logical 1, rather than ending up in an undefined state?
Why are we using very high value of resistances ? Is it to avoid shorting through the resistors when the switch is in on state ?
Thanks for the explanation sir. Found very informative, to the point explanation. Thanks once again :)
thanks sir for making this type of video it clears our fundamentals
@Gadgetronicx
5 жыл бұрын
Welcome :) Kindly subscribe to our channel for more of these tutorials
Great video, thank you for sharing
Your video answer all my question about pull resistor... Thx..
@Gadgetronicx
2 жыл бұрын
Glad I could help
This was very helpful. Thanks very much
Nicely explained. Thanks
This was extremely helpful!
@Gadgetronicx
4 жыл бұрын
Thank you
Cool edits and nice tutorial. Much helped!!!
@Gadgetronicx
3 жыл бұрын
Glad to hear!
Great Video and explanation
Can we apply this formulas for i2c communication resistors also? Or they are different?
@Gadgetronicx
3 жыл бұрын
Yes you can apply these formulas
Great content, but I really wish you could make the voice a little louder/clearer and the music more quiet.
@Gadgetronicx
3 жыл бұрын
Thanks for your feedback :)
Fantastic video and explanation, nice job :D
@Gadgetronicx
5 жыл бұрын
Thank you very much
Excellent video... thanks.
brilliant tutorial...
Super video,just I understood y to use pull up and pull down in a ckt after watching your video,great bro and thanks
@Gadgetronicx
5 жыл бұрын
Thank you Pavan do visit www.gadgetronicx.com for some other tutorials, circuits and projects
I can't understand you over the music
Thank you very much for your video
Great tutorial, even Software guys would be able to understand without much effort. Good job !
Thank you for the explanation. Glad I stumbled upon your channel!
Excellent vedio.please Tell me which software you are using for making this amazing vedio
If you have to choose a teacher for anything you need to know, choose an indian one ❤🌸
@Gadgetronicx
3 жыл бұрын
Ha ha thanks
I have doubt, How resistor will pull to +5V, they are not capacitor to hold current ? To pull to certain point of current from where they gain power ?
Nice appreciate the breakdown, great discoteca music too
@Gadgetronicx
5 жыл бұрын
Thanks
Thank you. Nice but I get dizzy trying to follow the quick sequence. Probably aging effect.
Not something ...I learn lot of things from this video. Thank Thank You...
Good tutorial
Nice vedio I was facing some EMI issues of false triggering of MCU becz i forget to put pull-ups in my switch input
This will be the best video, if u have avoided playing bg music👍
@Gadgetronicx
2 жыл бұрын
Thanks for the input Shiva
Thank you for this! It was very helpful!
Can you calculate pull up/down register value for Arduino nano digital pin....it will clear better
Great tutorial, thank you sir
@Gadgetronicx
4 жыл бұрын
Thank you. Kindly subscribe to our channel. For more tutorials visit www.gadgetronicx.com
Great always confused, but got clarity with this topic
@Gadgetronicx
2 жыл бұрын
Happy to help
Thank you I appreciate your hard work
@Gadgetronicx
3 жыл бұрын
You are very welcome
What value of pull up resistors to attach to max30100 sensor ,can I use 2, 10k resistors or need to use 3, 4.7k resistors ??? Please help me
@Gadgetronicx
4 жыл бұрын
Whats the need for pull up resistor with this sensor. Which pin do you exactly mean ?
Very clearly thank you very much. Is there a preference for pull up or pull down? With a pull up, the zerostate is to ground en with pull down you can calculate a small voltage?
@Gadgetronicx
4 жыл бұрын
Sorry couldn't get your question. Pull up mean to pull your logic pin close to vcc whereas Pull down mean to pull your pin close to ground
@fredkester6130
4 жыл бұрын
@@Gadgetronicx thank you
good explanation
very good, thank you!
why a short circuit is not recommended?
Nice video, thanks.
@Gadgetronicx
3 жыл бұрын
You are welcome :)
Very well put thanks
@Gadgetronicx
6 жыл бұрын
Roosevelt f thank you :)
Much appreciated.
Slow down, slow down. You are too fast for non electronics guy. Too loud background music.
@Gadgetronicx
5 жыл бұрын
Thanks for your feedback
@JustinShaedo
4 жыл бұрын
You can adjust the speed, pause the video and rewind. If you want to learn from any KZread videos then this is an essential skill. Genuine respect to you for learning. Now take a modicum of responsibility for that learning as well.
Good content
Superrr sir....thank you
Despite of the music, the content is great
What's up with the censor block?
Thanks very much 🙏
best explanation
Thank You ❤️😊
Can you reupload this video without the loud background music?
The video was good and very effective,but could you please reduce the volume of the background music as it was quite difficult for me to listen to your lecture clearly... Thank you!!
@Gadgetronicx
3 жыл бұрын
Noted :) will improve in upcoming tutorials
Really helpful.. Thank you
@Gadgetronicx
4 жыл бұрын
Thank you, do subscribe to our channel. Visit www.gadgetronicx.com for more tutorials
great video
@Gadgetronicx
3 жыл бұрын
Thank you
huh. that was actually really helpful
@Gadgetronicx
5 жыл бұрын
Thank you Atlas :) do visit www.gadgetronicx.com for some other tutorials, circuits and projects
I like this guy! He had me with the first ping!"sound"
This is a very good explanation but what it doesn't explain is that why there will be a drop of 1 volt? Usually for voltage to drop to a certain extent voltage divider is required. In this case a current of 100uA with 5V means the current is limited by a 50KOhm resistance. Hence if we want the current to remain 100uA, and a voltage drop of 1V, then we need a voltage divider of 10KOhm:40KOhm. The 40KOhm is assumed to be the internal resistance of the Gate. Then voltage drop will be 1V across the 10KOhm resistor.
THANK YOU!
Thank you
great tutorial
@Gadgetronicx
4 жыл бұрын
Thank you
Thankq bro..
Tq u.. It was useful
@Gadgetronicx
5 жыл бұрын
Welcome :) Kindly subscribe to our channel for more of these tutorials
Great video
@Gadgetronicx
3 жыл бұрын
Thank you
@mikevo5601
2 жыл бұрын
informative video. Thanks
wow, nice explanation .... but why still low likes?
Nice Presentation...
@Gadgetronicx
6 жыл бұрын
Thanks :)
Thank you, that was a good and clear explanation
Thank you sir
@Gadgetronicx
4 жыл бұрын
Thank you, do subscribe to our channel. Visit www.gadgetronicx.com for more tutorials
Very useful and clear explanation. However, you should try to make ALL future videos without any background music. It is completely irrelevant and distracting.
Video feels like iam driving super car with music while I learning pull up resistor
great
Loved the music
Behtreen
Thanks you Bro.. Do more videos.
@Gadgetronicx
5 жыл бұрын
Sure Vijay will create more videos :) Do visit www.gadgetronicx.com for more tutorials, Circuits and Projects
Thanks
Excellent explanation! Thanks a lot! But the background music is too loud
@Gadgetronicx
5 жыл бұрын
Thanks for the feedback. Will certainly improve in future videos.
Terrible music, great explanation! Thank you!
thanks alot man, quick and detailed explanation
@Gadgetronicx
5 жыл бұрын
Thank you Harish :) Do visit www.gadgetronicx.com for more tutorials, Circuits and Projects
Cool
nice explained
@Gadgetronicx
5 жыл бұрын
Thank you Sandeep :) Do visit www.gadgetronicx.com for more tutorials, Circuits and Projects
Very useful
@Gadgetronicx
5 жыл бұрын
Thank you :)
next question would be .. what is the condition required to switch on the pull down/high resistor