Better than all the explanations out there on pull up resistors. Simple, no fancy words, straight to the point. Ty

@JulianEdgar

4 жыл бұрын

Thank you.

Easily the best and simplest explanation of pull up / down resistors I've came across. Thank you.

@JulianEdgar

11 ай бұрын

You are welcome!

Awesome! Spent an hour trying to get my head around this before I found this video, then I had it in 3 minutes. Good on you mate!

@JulianEdgar

11 ай бұрын

Great to hear!

Very clear and simple explanation - thank you

Thanks so much! Was struggling with my uni's diagrams. This made it very clear! And you seem like a really nice guy.

@JulianEdgar

4 күн бұрын

Glad I could help!

This is hand down the best video explanation of this

This is the best explanation so far. Thanks so much! Now, I understand how they work.

@JulianEdgar

Жыл бұрын

Great to hear!

perfect explanation, it will allow me to read my hardware schematic better at my work. I am an embedded systems engineer.

I'm learning this in my embedded systems class, and you cleared the idea up easily! Thanks!

@JulianEdgar

Жыл бұрын

Glad it was helpful!

This really explains the reason behind the names. Thanks!

Understood this better than the explanations in my Native language

Thank you sir for making this video clear and concise. Cheers!

@JulianEdgar

2 жыл бұрын

You are welcome!

Great video, I see this type of application quite alot in BMS controls. Thanks for explaining it so well.

@JulianEdgar

4 жыл бұрын

Thank you!

so helpful. And clear! Thanks mate

Superb. Thanks. Love the accent, too.

Thank you very much, that's a great introduction!!!

Thank you so much

Great video. Thanks!

awesome video!

Just learning basics of Arduinos, and pullup/pulldown has stumped me for 2 days. Thanks for the explanation in such a concise video!!!

@JulianEdgar

9 ай бұрын

Great to hear!

You must be a great teacher... Love from India

@JulianEdgar

4 жыл бұрын

Thank you!

@captaincurd2681

2 жыл бұрын

Yes he is. I feel like he could teach me math even when I am in a coma.

Great explanation. Thanks!

Thx for the video.

thank you, easy and quick

Thank you very much

Nice explanation Great job just subscribed

clearly explained !!!

Beautiful explanation !!

@JulianEdgar

Жыл бұрын

Thank you.

Danke dir Julian, hat echt geholfen :)

thank you sir ...a great explanation

@JulianEdgar

3 жыл бұрын

Thanks and welcome

Great, wonderful explanation 🎖️

@JulianEdgar

9 ай бұрын

Thanks! 😃

Best explanation I have seen thank you

@JulianEdgar

2 жыл бұрын

You are welcome

fantastic explanation！

@JulianEdgar

2 жыл бұрын

Thanks! 😃

Lots of confusion, watched your explanation for 2 mins and understand it perfectly! - thank you - Pullup and Pulldown resistors are ordinary resistors and not 'special types of resistors'. - If a resistor is connected to ground (it's a pull down) or if the same resistor is connected to a +ve voltage (e.g. 5v dc) then it will be a pull up resistor. Bingo! but WATCH the Video!!! :-)

@JulianEdgar

10 ай бұрын

Glad it helped!

Thank you

@JulianEdgar

3 жыл бұрын

You're welcome

Nice and easy explanation 👌

@JulianEdgar

Жыл бұрын

Thank you 😊

thank u sir

@JulianEdgar

3 жыл бұрын

Welcome

Question internal pull-up resistor is bad in BCM. You think I could add external pull-up resistor? I was able to trick BCM with a 3.7 volt battery.

👍👍

In the case of the pull-up resistor, surely whether the input is "true" depends on the value of the resistor, no? It seems that if you make the resistor's resistance sufficiently large, the voltage drop across the resistor will reduce the voltage available to the input below its logical-truth value.

@JulianEdgar

2 жыл бұрын

Not with such a high input impedance.

Textbook explanation Julian!

@JulianEdgar

2 жыл бұрын

Thank you!

Peki pull-down direnci bir şekilde zarar görürse ve biz arduino ile bir step motor kontrol ediyor olsak bir direnç yüzünden butona basmadığım halde buton tetiklenip step motoru hareket ettirince kullanıcıya zarar vermezmi?

Why can't you connect the input pin directly to VCC without a pullup resistor? I know you shouldn't short the power supply to ground when pressing the switch, but is this the only reason? Would supplying 5V to the input pin work the same as using a pullup resistor?

Thank you very much for your clear explanation. Nevertheless I have a question: at minute 1:40, why can’t the current flow also to the ECU, when the switch is closed?

@JulianEdgar

2 ай бұрын

Because the resistance to ground is much lower than the resistance to 5V.

@amirarab254

2 ай бұрын

Do you mean, the resistance to the ground is much lower than to the 5V or to the ECU?

Great video. Let's say I am trying to connect one end of the switch to gnd. So, I have to do a pull up inside the controller. Can I do a pull down instead of pull up for the same ? Thankyou

@JulianEdgar

2 жыл бұрын

No

@sumanthcheedepudi8751

2 жыл бұрын

@@JulianEdgar The use of pull up or pull down is to take away the floating condition of the pin so that it won't pickup noise. So what I am thinking is instead of driving the pin to Vcc, I will drive it ground. So even if I close the switch, whose other end is also at 0 , the pin will still drive to 0. So isn't it a user's choice to pull up or down ? Am I missing something ?

@JulianEdgar

2 жыл бұрын

@@sumanthcheedepudi8751 Can your specify a pull-up in the controller? If you can, you can use the switch to pull to ground. If the controller uses a pull-down, and you can't change that to a pull-up, the switch to ground won't do anything.

I can't find your book on Abebooks.

@JulianEdgar

Жыл бұрын

Amazon

Hello.

Is there an equation to know how much the resistor needs to be?

@JulianEdgar

Жыл бұрын

A good question - and I don't know the answer. Typically I don't think it matters much eg 1-10K.

Can someone explain why when he uses the pull down resistor and the three-state is in conduction the circuit doesn't burn? Sorry for bad english

@JulianEdgar

4 жыл бұрын

Because the resistor limits current flow to a tiny amount.

@xoralundra536

4 жыл бұрын

@@JulianEdgar thank you appreciated, you're the man

@mumbucorporation7243

4 жыл бұрын

I don't get it also: in pull-down scheme and closed button state there is no resistor between 5V and the ecu (input pin, that will burn every pin as they can't handle high currents. So if I get it right, you need another resistor in between 5v and the ecu. Is that right?

@JulianEdgar

4 жыл бұрын

@@mumbucorporation7243 The ECU has a high input impedance. See kzread.info/dash/bejne/Y2d-j8eehK_RZNo.html

Thank you doctor for your grear explaination I really appreciate it, read about islam doctor !

Good explanation although was a bit difficult to concentrate because of your to much energetic arms and hands gestures.

@JulianEdgar

4 жыл бұрын

I like being animated.