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

  • @bobfurgenbirg9523
    @bobfurgenbirg95236 жыл бұрын

    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

    @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

    @karenma7704

    5 жыл бұрын

    @@Gadgetronicx i don't see the card

  • @mahdilaloui711

    @mahdilaloui711

    3 жыл бұрын

    true

  • @westleyphilip814

    @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

    @trentondylan1281

    3 жыл бұрын

    @Ezekiel Kole Yea, have been using Flixzone for years myself :D

  • @anythingunderthesun9930
    @anythingunderthesun99304 жыл бұрын

    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.

  • @ags-engineering5544
    @ags-engineering5544 Жыл бұрын

    Thank you ! This video explains the use and application of pull up / pull down resistor clearly.

  • @ec11368
    @ec113682 жыл бұрын

    you are the best one who did explain the pull-up and down resistor

  • @yanxiaosun4363
    @yanxiaosun43635 жыл бұрын

    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?

  • @magiclay
    @magiclay2 жыл бұрын

    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?

  • @AB-yu2tj
    @AB-yu2tj3 жыл бұрын

    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

    @Gadgetronicx

    2 жыл бұрын

    You’re welcome 😊

  • @cutsdbz
    @cutsdbz Жыл бұрын

    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?

  • @PhG1961
    @PhG19616 жыл бұрын

    Great video/tutorial !! Thnxs for sharing ! Please turn the music a little softer for your next video.

  • @michaelmedioli5975
    @michaelmedioli5975 Жыл бұрын

    Nice video you explain in a clear way the arguments thank you a thousand times👍

  • @omaralharran
    @omaralharran2 жыл бұрын

    Thank you for explaining this topic in depth. :)

  • @mahmoudkortas
    @mahmoudkortas6 жыл бұрын

    music too loud

  • @Gadgetronicx

    @Gadgetronicx

    6 жыл бұрын

    Mahmoud Kortas Sorry will take this feedback :)

  • @augustkravtsov

    @augustkravtsov

    6 жыл бұрын

    I never understood the use of music in those type of videos. It appears so pointless to me.

  • @mkaberli

    @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

    @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

    @ksawery6568

    3 жыл бұрын

    Nah it's perfect, just turn down the lights and bring out the neon sticks

  • @ytrew9717
    @ytrew97175 жыл бұрын

    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?)

  • @rezanouri7532
    @rezanouri7532 Жыл бұрын

    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.

  • @swedishpsychopath8795
    @swedishpsychopath8795 Жыл бұрын

    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!

  • @kaoshavoc
    @kaoshavoc6 жыл бұрын

    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

    @Gadgetronicx

    6 жыл бұрын

    Thank you for your kind comment and subscription. Will continue to create more informative videos.

  • @richardpope9985
    @richardpope9985 Жыл бұрын

    Wow .... I completely understood that. Great job !!

  • @un-named6865
    @un-named68655 жыл бұрын

    You are a brilliant human being. This is by FAR the best electronics video explanation ive ever come across. Thank you very much!

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thank for your kind feedback :) Kindly subscribe to our channel

  • @nedzadhadziosmanovic3785
    @nedzadhadziosmanovic37853 жыл бұрын

    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?

  • @harshitsangwan890
    @harshitsangwan8902 жыл бұрын

    Why are we using very high value of resistances ? Is it to avoid shorting through the resistors when the switch is in on state ?

  • @dbanerjee2467
    @dbanerjee246711 ай бұрын

    Thanks for the explanation sir. Found very informative, to the point explanation. Thanks once again :)

  • @meetpatel8197
    @meetpatel81975 жыл бұрын

    thanks sir for making this type of video it clears our fundamentals

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Welcome :) Kindly subscribe to our channel for more of these tutorials

  • @Thatguyyyouknow
    @Thatguyyyouknow2 ай бұрын

    Great video, thank you for sharing

  • @fajri8058
    @fajri80582 жыл бұрын

    Your video answer all my question about pull resistor... Thx..

  • @Gadgetronicx

    @Gadgetronicx

    2 жыл бұрын

    Glad I could help

  • @martinprinceton9858
    @martinprinceton9858 Жыл бұрын

    This was very helpful. Thanks very much

  • @SushrutKanetkar
    @SushrutKanetkar6 ай бұрын

    Nicely explained. Thanks

  • @alecdvor
    @alecdvor4 жыл бұрын

    This was extremely helpful!

  • @Gadgetronicx

    @Gadgetronicx

    4 жыл бұрын

    Thank you

  • @minhajshovon9789
    @minhajshovon97894 жыл бұрын

    Cool edits and nice tutorial. Much helped!!!

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    Glad to hear!

  • @shameerpkm
    @shameerpkm2 жыл бұрын

    Great Video and explanation

  • @prashantwalkar224
    @prashantwalkar2243 жыл бұрын

    Can we apply this formulas for i2c communication resistors also? Or they are different?

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    Yes you can apply these formulas

  • @bpelectric
    @bpelectric3 жыл бұрын

    Great content, but I really wish you could make the voice a little louder/clearer and the music more quiet.

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    Thanks for your feedback :)

  • @sporech9374
    @sporech93745 жыл бұрын

    Fantastic video and explanation, nice job :D

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thank you very much

  • @joeb.fromsydneyaustralia5313
    @joeb.fromsydneyaustralia53132 жыл бұрын

    Excellent video... thanks.

  • @ambientsoda106
    @ambientsoda106 Жыл бұрын

    brilliant tutorial...

  • @Pavankumar-qk5uv
    @Pavankumar-qk5uv5 жыл бұрын

    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

    @Gadgetronicx

    5 жыл бұрын

    Thank you Pavan do visit www.gadgetronicx.com for some other tutorials, circuits and projects

  • @WahWahWeeWah
    @WahWahWeeWah6 жыл бұрын

    I can't understand you over the music

  • @chamseddinebedhiaf5384
    @chamseddinebedhiaf53842 жыл бұрын

    Thank you very much for your video

  • @rameshc5302
    @rameshc53024 жыл бұрын

    Great tutorial, even Software guys would be able to understand without much effort. Good job !

  • @axx10m
    @axx10m6 жыл бұрын

    Thank you for the explanation. Glad I stumbled upon your channel!

  • @pratyushpatel6224
    @pratyushpatel62244 жыл бұрын

    Excellent vedio.please Tell me which software you are using for making this amazing vedio

  • @imanqoly
    @imanqoly3 жыл бұрын

    If you have to choose a teacher for anything you need to know, choose an indian one ❤🌸

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    Ha ha thanks

  • @lifeonagriculture3330
    @lifeonagriculture3330 Жыл бұрын

    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 ?

  • @pgalatioto
    @pgalatioto5 жыл бұрын

    Nice appreciate the breakdown, great discoteca music too

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thanks

  • @fuzzs8970
    @fuzzs89703 жыл бұрын

    Thank you. Nice but I get dizzy trying to follow the quick sequence. Probably aging effect.

  • @SathishKumar-if7ow
    @SathishKumar-if7ow4 жыл бұрын

    Not something ...I learn lot of things from this video. Thank Thank You...

  • @Roottech25
    @Roottech25Ай бұрын

    Good tutorial

  • @parthpatel1605
    @parthpatel1605 Жыл бұрын

    Nice vedio I was facing some EMI issues of false triggering of MCU becz i forget to put pull-ups in my switch input

  • @shivar8023
    @shivar80232 жыл бұрын

    This will be the best video, if u have avoided playing bg music👍

  • @Gadgetronicx

    @Gadgetronicx

    2 жыл бұрын

    Thanks for the input Shiva

  • @azcharlie2009
    @azcharlie20095 жыл бұрын

    Thank you for this! It was very helpful!

  • @kkkk150984
    @kkkk1509843 жыл бұрын

    Can you calculate pull up/down register value for Arduino nano digital pin....it will clear better

  • @user-py7qm7jt1t
    @user-py7qm7jt1t4 жыл бұрын

    Great tutorial, thank you sir

  • @Gadgetronicx

    @Gadgetronicx

    4 жыл бұрын

    Thank you. Kindly subscribe to our channel. For more tutorials visit www.gadgetronicx.com

  • @muhundans7788
    @muhundans77882 жыл бұрын

    Great always confused, but got clarity with this topic

  • @Gadgetronicx

    @Gadgetronicx

    2 жыл бұрын

    Happy to help

  • @rohanbhavsar6976
    @rohanbhavsar69763 жыл бұрын

    Thank you I appreciate your hard work

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    You are very welcome

  • @Ankit-mq6em
    @Ankit-mq6em4 жыл бұрын

    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

    @Gadgetronicx

    4 жыл бұрын

    Whats the need for pull up resistor with this sensor. Which pin do you exactly mean ?

  • @fredkester6130
    @fredkester61304 жыл бұрын

    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

    @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

    @fredkester6130

    4 жыл бұрын

    @@Gadgetronicx thank you

  • @thomasldeanjr3337
    @thomasldeanjr33372 жыл бұрын

    good explanation

  • @galc8142
    @galc81424 жыл бұрын

    very good, thank you!

  • @subramanyann8663
    @subramanyann86633 жыл бұрын

    why a short circuit is not recommended?

  • @waynel1557
    @waynel15573 жыл бұрын

    Nice video, thanks.

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    You are welcome :)

  • @user-ox8ix6lf4r
    @user-ox8ix6lf4r6 жыл бұрын

    Very well put thanks

  • @Gadgetronicx

    @Gadgetronicx

    6 жыл бұрын

    Roosevelt f thank you :)

  • @user-mr3mf8lo7y
    @user-mr3mf8lo7y Жыл бұрын

    Much appreciated.

  • @VirendraBG
    @VirendraBG5 жыл бұрын

    Slow down, slow down. You are too fast for non electronics guy. Too loud background music.

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thanks for your feedback

  • @JustinShaedo

    @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.

  • @mrwait417
    @mrwait417 Жыл бұрын

    Good content

  • @manishankarveeranki1812
    @manishankarveeranki18123 жыл бұрын

    Superrr sir....thank you

  • @josephmitchell1450
    @josephmitchell1450 Жыл бұрын

    Despite of the music, the content is great

  • @stevenrogersfineart4224
    @stevenrogersfineart42242 жыл бұрын

    What's up with the censor block?

  • @sumuduasiri
    @sumuduasiri Жыл бұрын

    Thanks very much 🙏

  • @veljko100able
    @veljko100able5 жыл бұрын

    best explanation

  • @pasinduchathuranga7960
    @pasinduchathuranga79602 жыл бұрын

    Thank You ❤️😊

  • @macuvexzailand8547
    @macuvexzailand85472 жыл бұрын

    Can you reupload this video without the loud background music?

  • @mahimas2804
    @mahimas28044 жыл бұрын

    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

    @Gadgetronicx

    3 жыл бұрын

    Noted :) will improve in upcoming tutorials

  • @kritidiptadatta5556
    @kritidiptadatta55564 жыл бұрын

    Really helpful.. Thank you

  • @Gadgetronicx

    @Gadgetronicx

    4 жыл бұрын

    Thank you, do subscribe to our channel. Visit www.gadgetronicx.com for more tutorials

  • @averageguy2451
    @averageguy24513 жыл бұрын

    great video

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    Thank you

  • @pepsiatlas5452
    @pepsiatlas54525 жыл бұрын

    huh. that was actually really helpful

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thank you Atlas :) do visit www.gadgetronicx.com for some other tutorials, circuits and projects

  • @raf8314
    @raf83144 жыл бұрын

    I like this guy! He had me with the first ping!"sound"

  • @sohamthaker
    @sohamthaker Жыл бұрын

    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.

  • @warren1192
    @warren11923 жыл бұрын

    THANK YOU!

  • @sagarjadhav2662
    @sagarjadhav26622 жыл бұрын

    Thank you

  • @ambientsoda106
    @ambientsoda1064 жыл бұрын

    great tutorial

  • @Gadgetronicx

    @Gadgetronicx

    4 жыл бұрын

    Thank you

  • @lokavarapubalaraju4897
    @lokavarapubalaraju48972 жыл бұрын

    Thankq bro..

  • @arpithabasavaraju
    @arpithabasavaraju5 жыл бұрын

    Tq u.. It was useful

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Welcome :) Kindly subscribe to our channel for more of these tutorials

  • @rajutharigoppula2890
    @rajutharigoppula28903 жыл бұрын

    Great video

  • @Gadgetronicx

    @Gadgetronicx

    3 жыл бұрын

    Thank you

  • @mikevo5601

    @mikevo5601

    2 жыл бұрын

    informative video. Thanks

  • @majuran
    @majuran6 жыл бұрын

    wow, nice explanation .... but why still low likes?

  • @nitinzanwar2814
    @nitinzanwar28146 жыл бұрын

    Nice Presentation...

  • @Gadgetronicx

    @Gadgetronicx

    6 жыл бұрын

    Thanks :)

  • @BuildswithBrian
    @BuildswithBrian4 жыл бұрын

    Thank you, that was a good and clear explanation

  • @GauravGupta-pb8mk
    @GauravGupta-pb8mk4 жыл бұрын

    Thank you sir

  • @Gadgetronicx

    @Gadgetronicx

    4 жыл бұрын

    Thank you, do subscribe to our channel. Visit www.gadgetronicx.com for more tutorials

  • @MIZKhalid
    @MIZKhalid4 жыл бұрын

    Very useful and clear explanation. However, you should try to make ALL future videos without any background music. It is completely irrelevant and distracting.

  • @Jimmyverity
    @Jimmyverity4 жыл бұрын

    Video feels like iam driving super car with music while I learning pull up resistor

  • @atacankarakoc4489
    @atacankarakoc44892 жыл бұрын

    great

  • @Roottech25
    @Roottech25Ай бұрын

    Loved the music

  • @MuhamedUsman
    @MuhamedUsman10 ай бұрын

    Behtreen

  • @vijaydattu709
    @vijaydattu7095 жыл бұрын

    Thanks you Bro.. Do more videos.

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Sure Vijay will create more videos :) Do visit www.gadgetronicx.com for more tutorials, Circuits and Projects

  • @2871nana
    @2871nana3 жыл бұрын

    Thanks

  • @tommyyhli
    @tommyyhli5 жыл бұрын

    Excellent explanation! Thanks a lot! But the background music is too loud

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thanks for the feedback. Will certainly improve in future videos.

  • @tomasrosenberg3430
    @tomasrosenberg34302 жыл бұрын

    Terrible music, great explanation! Thank you!

  • @harishrn1993
    @harishrn19935 жыл бұрын

    thanks alot man, quick and detailed explanation

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thank you Harish :) Do visit www.gadgetronicx.com for more tutorials, Circuits and Projects

  • @manofmesopotamia7602
    @manofmesopotamia76023 жыл бұрын

    Cool

  • @sandiprupnavar1
    @sandiprupnavar15 жыл бұрын

    nice explained

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thank you Sandeep :) Do visit www.gadgetronicx.com for more tutorials, Circuits and Projects

  • @MukeshKumar-di7nj
    @MukeshKumar-di7nj5 жыл бұрын

    Very useful

  • @Gadgetronicx

    @Gadgetronicx

    5 жыл бұрын

    Thank you :)

  • @footballCartoon91
    @footballCartoon912 жыл бұрын

    next question would be .. what is the condition required to switch on the pull down/high resistor

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