Beginner Electronics - 26 - Logic Gates and Floating Inputs (and short channel update)
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- เผยแพร่เมื่อ 15 ส.ค. 2019
- In this episode, we learn about the NOT, OR, AND, XOR, NAND, and NOR digital logic gates. We also explore an issue with "floating inputs" in circuits, that can cause problems. I also include a short channel update!
*DISCLAIMER - READ BEFORE WATCHING*
I am an electronics hobbyist; I do not have a degree in electrical engineering. This series MAY NOT teach all of the appropriate safety required for general electronics work. Any advice taken from this series should be checked with multiple sources, and a professional should be addressed to ensure proper safety.
Need source code? See my website: codenmore.github.io/
Follow me on Twitter - @CodeNMore - / codenmore
Comment, PM, or Tweet me for help!
Teaching to understand all subjects to the fullest extent! - แนวปฏิบัติและการใช้ชีวิต
**DISCLAIMER - READ BEFORE WATCHING**
I am an electronics hobbyist; I do not have a degree in electrical engineering. This series MAY NOT teach all of the appropriate safety required for general electronics work. Any advice taken from this series should be checked with multiple sources, and a professional should be addressed to ensure proper safety.
I swear this is the best electronics course there is on the internet. There is no way we're ditching you because of your upload schedule, and it might take us 10 years but eventually we will make that 8 bit computer!
You taught me the basics of electronics man. You had a great skill to teach . You are a good Teacher.
Thanks for the kind words!
CodeNMore same here thank you for using your time to teach people you are a good man
i strongly agree
I don't think you should feel like you owe the content to anyone, however it definitely is relieving to know you're still trying to create these videos.
Bless ya soul, he is back.
I swear this is the best playlist ever to learn electronics thank you
Glad you're back! This course on electronics is awesome
Thanks for your comment, glad to hear!
Coming from someone watching this in the future: THANK YOU. This is so well explained and so well done, I seriously cannot thank you enough
Oh man I can't even describe how excited I am that you're back!
glad to see u again
I was so happy when I saw his upload
Thanks for the support!
Keep doing what you do, I’ve learned so much from your videos
You’ve done the most important thing, you’ve helped people understand the basics from which they can now grow beyond. You should be proud of yourself for getting us all this far I’m very grateful to you
Interesting note on NAND and NOR is you can build an entire computer JUST using one or the other! You can construct all other gates with just a bunch of NANDs or NORs-the lunar lander computer was built this way!
you're literally saving my a$$ with this course, thank you, smart stranger
I'm building something else for my studies but I like how you explain circuit elements so much i might actually build this project just for fun when the video serie is complete :-) bless you
Im glad that you are back, this is the best series on youtube.
I would like to thank you for doing these lessons they are very informative and you put them over with great skill no messing and to the point . thanks very much appreciated please keep doing them.
I agree with the others, a great series of teaching videos. I started out with one of those commercial kits but this taught me stuff from the ground up and got me much more interested and engaged. Many thanks, a great contribution to 🙂newbies learning about electronics.
Mate, you've got the best basic electronics course around. I just did a search, and your course came up: Google considers this course the best! Keep on. Best regards
Thank you for this. I am watching this to review some lessons and you explain it well. Please upload more.
Thank you for your time uploading these series of electronic videos you created. I've been consuming time reading and solving electronic computation and problems and understanding every context paragraph on every textbook i read about electronics. You made every thing clear and easy for me to understand theoretically and practically. Now, i can put my ideas on actual works. Electronics is my first course preference but studied mechanical engineering. You just made my interest back to my favorites again! Keep it up Sir! T.I.A
Thank you! I'm no electrical engineer (I studied CS), so I am glad my content could help. My knowledge of digital logic and small-hobbyist design is far greater than my knowledge for proper electronics safety and and complex electronics, so do bear that in mind!
So nice to see you back, I long to see new java programming tutorial
Happy your have not forgotten about us. Keep it up. 😀
Good job as allways! Keep up doing your work!
Wonderfully explained.
This is great, am learnig so much. Thank you for your time and effort....
I trouly love you and your videos. Take your time if you need it!
im really not interested in making a 8 bit thing but your so interseting that ive hung out and it is interesting! to my astonishment your educational/entertaining! you could teach anything!
Best explaination of a tough subject ever
I'm loving this course, I've seen all the lessons. There is only one concept that has me confused and it's "ground". I'm not sure I understand it completely, and if there is something in common with the negative input or not (and in case, what's not)
At first I thought the problem in schematics was the switch as it will never give exclusive OR to the XOR gate.
Daniel Alt that was my thought too
At last, we missed you.
hey welcome back!!
Nice demo!
You back !!!! , boy .man ,,Thank you man
You are the best. I am searching like this
Thanks a lot for videos, one question: what are the main components for this logical IC? I guess this are built on transistors?
love your videos
Finally back.
PROJECT: Joza100 yeah...
İ have learnt many many things from your videos
yeees he is not dead
we miss u bro
Thanks for this
Whaaaaaat. Welcome back.
How about some pull down resistors to keep the inputs low, while not connected to positive terminal, instead of the double switch. That way there is never a moment when the wires are floating. Anyway cool video again.
@@miroslavmoravek8229 That's the exact method we'll use further on in the series ;) thanks for the comment!
Welcome again
Sweet where you been dude
Sorry if this is a very stupid question, or if you have already discussed this, but what is ground in a DC circuit. I have tried researching this, but they all refer to actual earth ground. I heard it is when the voltage is 0, but then why is ground at the negative end of a battery when electrons start flowing from the negative end. I thought that would be where the circuit had the most voltage.
JAZAKALLAH KHAIR..what are floating inputs?
I wish I'd got into this a long time ago.
great!
Have you thought about selling an online course on Udemy? I would purchase it for sure! Thanks for coming back!!!
I second that. This video series is great
Same! If you released this all into an Udemy course, I’d buy it and watch it all over again. Truly worth paying for and I appreciate thats it’s free on here
4:43 lol
interviewer: "What's the schematic symbol for an And Gate?"
Me: "Oh is that the one that looks like a... weird curve thing?"
Besttt!!
Must be missing something important, this does not sound very simple... Mind you, I'm unfamiliar with the topic. I'm glad you have returned, this your course has been my favourite way of learning about electronics. I guess I want to know more about how these gates are implemented in electronics.
Is there something specific that you wish to know? If you're wondering how we use these, in about 3 videos we will begin using them quite often (specifically, we will use logic gates to create a circuit that is able to add binary numbers). They are an integral part of how a computer is able to perform calculations and function in general. Let me know if I can help with anything, and thanks for the support!
@@CodeNMore is building a timer 5/20 minute/hours even something a beginner could handle? Possibly a video on "switchers" (things that can turn on/off something)
@@creativecityis are you wondering how you could build a timer circuit, to make something happen after 20 minutes? Or are you wondering about transistors/mosfets when you say "switchers"?
@@CodeNMore argh, should stick to one question per comment. I live off grid, and being able to start something and it turns it's self off would be pretty handy, especially if I could choose how long it stays on (20,40,80minutes)
second query (it's Probably alot more full on) my view of electronics has three parts
1:power
2:Thing that turns on
And a "switch" (thing that connects 1&2)
There is plenty of information about #1&2 but not much on #3.
Anyway, I'm sure other people would be interested, plus your way of simplifying information... It's just easy to understand.
Anyway all the best ☺️
Thanks
Is binary zero : zero volts, or some low voltage, like 0.01v ???
YAYYYYYY!!!
So how does a “pull-down” resistor work?
It basically works as how he explained the switch to ground, but a pull down resistor would ensure more precisely that there aren't stray voltages when say while flipping a switch in his design. With a pull down resistor, the turquoise wire(s) would connect to the blue wire input of the xor gate with a pull down resistor in the turquoise part of the wire, going to ground. Each input would be normally low (with switch connected to ground and pull down resistor). Now as the switch isn't breaking a solid input for the xor gate when toggled, there's no floating voltage.
YESSSS
in what lesson will we make the 8 bit computer
I don't understand why the wires have to be grounded in the logic gate, what's wrong with them just being disconnected?
How can we prevent the floating input state even with a DPDT switch for that brief moment (at 17:19)?
By using pull up/ down resistors - mentioned in video 29 (~10:00)
Wheres the new Java Programming tutorial? Even if it isnt Coming regulary, pls do it! I tried to add Multiplayer but it didnt worked, so could you continue the series for these things? It wouöd be soooo great
I certainly plan to, and have been slowly getting some content for it, it's just a matter of when!
CodeNMore Great to hear these news. Greetings from Germany 😅
man pls pls pls make more videos
I don't understand what does floating pin means?
Greetings from Brazil!
Make a new game programming series, this time a intermediate level
@@YourExecellency Yeah, they are very good
I plan to make a series using LibGDX (really just to be able to have hardware rendering/efficiency and multi-platform). Through that, I can teach some more best-practices of game programming too :) Thanks!
@@CodeNMore Yeah, we would like to see how can we mix the knowledge of the beggining game development series with libgdx, I saw in your twitter some print of games that you made with torches and more... And the PRETUTORIAL image that you've posted on. (SORRY FOR MY BAD ENGLISH, IM NOT A NATIVE SPEAKER)
I'm a brazillian fan of your job, keep going
8 bit computer, now I can see you...
someone with coding exp will find logic in these easily
Hey put up your patreon somewhere. Imma give you money if you do.
I'm confused
It's just better to do this when you have time and not doing it to blank on people again. I was so much depending on this series before. I guess you're a student and you don't have time.
At last, we missed you.