Keyboard interface hardware

Рет қаралды 318,811

3 жыл бұрын

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Пікірлер: 730

@Aman4457_ 3 жыл бұрын

Soon he’s going to hook up the video card and make a text editor with it

@bloxcodes6576 3 жыл бұрын

Heck yeah

@RobsonLanaNarvy 3 жыл бұрын

he is going to write the code and compile it to run, all in the 6502 computer

@EvilSandwich 3 жыл бұрын

@@RobsonLanaNarvy and then he'll show us how to bank so he can get enough memory to hold the IDE

@simeondermaats 3 жыл бұрын

Next video: "vi on the 6502"

@UQuark0 3 жыл бұрын

Operating system on 6502

@PixelSchnitzel 3 жыл бұрын

I'm sitting here yelling "no, use a 7414 instead of a 7404" and then I remember Ben's teaching style. Then I sit back and watch for the object lesson. OMG, I wish I had a teacher like Ben many years ago. These videos stand out as some of the finest teaching I've ever seen.

@BichaelStevens 3 жыл бұрын

whats the difference?

@PixelSchnitzel 3 жыл бұрын

@@BichaelStevens He explains starting around 17:37. I think his tactic of starting with the 7404, then "discovering" the need to switch to a 7414 is a great teaching technique.

@atticusrussell1225 Жыл бұрын

@@PixelSchnitzel yeah this video was amazing. Am studying electronics and it still stands out as one of the most intuitive tutorials I've seen

@frinkemon Жыл бұрын

I was about o comment "SCHMITT TRIGGER" ;-)

@charlesnathansmith Жыл бұрын

I think a lot of the "well maybe we can do this.. wa... wa... wait we can just do this, can't we?" gets glossed over a lot of the time. Like no, you're right, but just sit with it a minute..

@michaeldonoghue9015 3 жыл бұрын

Eventually, it will run some simplistic version of Doom and then we will have come full circle lol

@mikefochtman7164 3 жыл бұрын

Nah, I would go old-school and program Zork!

@MikePerigo 3 жыл бұрын

Give him enough time and he will be playing his own KZfaq videos on a few breadboards. Now that will be full circle :)

@Izaltinodsouza 2 жыл бұрын

@@MikePerigo He need to first make his own network card.

@chriskaprys Жыл бұрын

A few more LEDs should be enough for a rudimentary screen. Nearly there!

@tyleryounger2558 Жыл бұрын

@@Izaltinodsouza dude is probably already working on it

@DegradationDomain_stuff 3 жыл бұрын

I have never been so happy to see number 3 in my entire life

@saltysoyman6908 3 жыл бұрын

Ben Eater has nearly singlehandedly shown me how cool it would be to become an electrical engineer!

@Aadil2Adnan 3 жыл бұрын

Same! I just love Ben's vibes

@existential_fred 3 жыл бұрын

What about great Scott?

@KubikDezimeter 3 жыл бұрын

@@existential_fred He‘s great too

@existential_fred 3 жыл бұрын

@@KubikDezimeter lol I see what you did there

@jamiehardt3061 3 жыл бұрын

@@existential_fred Ben's prototypes are neater and seem to be a little safer. 😀

@seannolan2120 3 жыл бұрын

When he was wondering about how to clean the inverted signal I thought to myself he needs to use a Schmitt trigger and then he pulls out the data sheet for a Schmitt trigger inverter. I feel so smart!

@sensiblewheels 3 жыл бұрын

Same!! Initially I wasn't confident but I was pleasantly surprised. Unfortunately, my job isn't in this domain so my brain's a little rusty.

@gpk6458 3 жыл бұрын

For some reason I thought it was called a Schottky trigger. I still felt smart, though.

@Yogpod299 3 жыл бұрын

My monke brain was like “low pass filter” until I saw bens solution which is so much more elegant lmao been doing too much signals and systems lately

@SamBebbington 3 жыл бұрын

Mounts it in a pc case. Lemme just plug in my keyboard… proceeds to pull out 4 wires and place them in specific holes in the breadboard mother board. Done!

@BrightBlueJim 3 жыл бұрын

He had already made that breakout cable in the previous video. Anyway, just like how his wires are always already the perfect length, it would just waste a lot of time if he showed stripping the wires and crimping the pins to the ends of each wire. Ben is really good at spending time on the things that are useful for learning, and not wasting it on things you can easily figure out for yourself.

@bensonprice4027 3 жыл бұрын

On this episode, Ben teaches us how to make triangle and saw-toowth wave signals.

@sdspivey 3 жыл бұрын

But I want to see pentagonal waves.

@kaitlyn__L Жыл бұрын

@@sdspivey I suppose that would look like a square wave with a triangle wave sitting on top where it’d normally be flat. Hmm, wonder how that sounds. It wouldn’t be quite the same as just adding a triangle and square wave simply added together, one component waits for the other

@sdspivey Жыл бұрын

@@kaitlyn__L One peak could be just a slope up then down, the next would be the lower part of the pentagon. (A triangle, followed by an inverted "mesa")

@zizlog_sound 10 ай бұрын

At the point we saw the different wave forms on the oscilloscope I thought he is gonna hook up a speaker 😅

@EvilSandwich 3 жыл бұрын

As barebones as this is, it really just boggles my mind that there is still a lot of heavy lifting being done by the Hitachi microcontroller inside of the character LCD display. I would love to see a future video where he talks about what's going on inside of that microcontroller to display ASCII characters on the liquid crystal display and process and send out data like busy flags and whatnot. Like, we don't need to know all that stuff now. Because that's not really in the scope of this lesson, but I would love to see it explored later.

@U20E0 3 жыл бұрын

2022: building an lcd screen microcontroller on bradboards 2030: building a 6502 on 1 thousand breadboards 2077: building a universe on breadboards

@MrCool-lo3ls 3 жыл бұрын

Also the signals from the keyboard are really convenient. I would like it if he explained how the keyboard prepares the signals

@JohnDlugosz 3 жыл бұрын

In the Apple 1, they used a terminal chip for a similar purpose.

@JohnDlugosz 3 жыл бұрын

@@U20E0 re building a 6502: see the MOnSter 6502 project. For a computer that doesn't use a microcontroller, there's one called Giga or something like that.

@ryanb8302 3 жыл бұрын

@@JohnDlugosz the gigatron

@atakan3160 3 жыл бұрын

I'm a student. This channel is a gold mine for me. Thank you for your effort greetings from Turkey.

@OneMilian 3 ай бұрын

Me too im from Germany, powerful knowledge is universal

@markday3145 3 жыл бұрын

I appreciate you taking the time to go over turning the per-bit clock into a per-key-code clock a step at a time. Thanks for leaving in the mistakes and glitches, and then showing how you solve them. Those are the practical skills that theory-based instruction rarely covers well.

@syralessthanthree 3 жыл бұрын

I think the "mistakes" are there on purpose to also show how to debug and fix things either way I aggree I appritiate it too

@daredaemon8878 3 жыл бұрын

@@syralessthanthree I think hooking power and ground up backwards was a genuine mistake, the other bits were definitely intentional mistakes for the purpose of education, though.

@hecker688 3 жыл бұрын

I learn more about all of this with him than in school.

@saltysoyman6908 3 жыл бұрын

Yes. This shows 2 things: 1, how great the internet is as a learning resource and 2, how inefficient and honestly badly designed school is. I get easily aggravated by the lack of new info I’m learning at school and how it COULD be better.

@EvilSandwich 3 жыл бұрын

@@saltysoyman6908 it also helps that you can pause and replay parts of the lesson you didn't quite grasp in the beginning. It's amazingly helpful to have the ability to re-watch lessons with the benefit of context that you picked up in later lessons.

@matthewduphily5129 3 жыл бұрын

I feel this. I pointed my fellow classmates to Ben's SR latch videos cause our prof is just awful at teaching

@ezravermeulen901 3 жыл бұрын

The problem with these lessons is, is that it takes way more time from the teacher to prepare these lessons. Most teachers would not like to take this time. Dont get me wrong, this is more of a complaint of how bad schools do it, trust me I know (just finished all my theory a month ago, only internships to do)

@glaucorocha1281 3 жыл бұрын

schools should be illegal

@yousorooo 3 жыл бұрын

As a software engineer it is very fascinating to see how the hardware works under the hood.

@ToTheGAMES 3 жыл бұрын

It basically works the same, but different! I love it. Just like switching electrical systems.

@samibinol 3 жыл бұрын

It runs on some form of electricity

@ToTheGAMES 3 жыл бұрын

@@samibinol surprised_pikachu.jpg

@syralessthanthree 3 жыл бұрын

i think the best thing is that everything runs at the same time if you are interrested in "programming" hardware check out FPGAs

@stutavagrippa8690 3 жыл бұрын

Nice profile picture.

@yakacm 3 жыл бұрын

This is turning in to a computer version of Bad Obsession Motorsport, lol.

@hanshans387 3 жыл бұрын

Just need a sound card for the funk!

@sashimanu 3 жыл бұрын

Coming up next: covox, FM and noise noise synthesis

@jdpruente 3 жыл бұрын

Fortunately for us Ben is moving along at a much faster clip!

@BrightBlueJim 3 жыл бұрын

Just imagine building a computer using an angle grinder

@Zadster 3 жыл бұрын

@@BrightBlueJim And many, many, brackets...

@TrapShooter68 3 жыл бұрын

I'm always sad when I get to the end of a Ben Eater video because I know it's going to be weeks or months until the next one and I enjoy them so much. Thanks Ben!

@mattc4855 3 жыл бұрын

Getting flashbacks to my analog electronics class at university when I heard "Schmitt Trigger". Thanks for the psychological trauma Ben :D

@SimonBuchanNz 3 жыл бұрын

I have learned and forgotten what a schmitt trigger is probably about five times now. I'm hoping this one sticks!

@YagoTheFrood 3 жыл бұрын

Ben really should have put up a Schmitt Trigger Warning at the top of the video.

@kaitlyn__L Жыл бұрын

@@YagoTheFrood I don’t know whether to clap or groan

@Charlie-kz9cy 3 жыл бұрын

What could make a Saturday morning better than a new video from Ben?

@bsvenss2 3 жыл бұрын

Two Ben videos? 🤔😀

@sashimanu 3 жыл бұрын

Ben & Curious Marc videos!!

@minikretz1 3 жыл бұрын

For the first time I anticipated an issue! I was guessing that the interrupt would count more than 3 with the 74HC04. I had no clue how to fix it though, and never heard of a schimitt trigger. So I've been learning so much from this video series that I knew there could be an issue and knew what needed to be fixed, but I'm glad that your still showing new techniques to solve problems. Thanks for all the amazing content!

@EvilSandwich 3 жыл бұрын

Oh yeah just swap out a 7404 with a 7414 and your set!

@tekvax01 3 жыл бұрын

Good to know, I still remember this digital electronics stuff... As he is building the interrupt trigger, with the resistors, cap, and diode; I said to myself, "Wait, you can't do that with *just* an inverter, you need a _Schmitt trigger_ , to catch the indeterminate _hysteretic_ logic levels!" My linear and digital teachers would be proud! I guess I was listening during those lectures 28 years ago! Ben Eater does an excellent job, teaching this stuff!

@snickers10m 3 жыл бұрын

I'm wondering how you managed to connect the 8 data bits to PORTA, when previously 3 of those bits were occupied sending control signals to the LCD display (register select, read/write, and chip enable). How are the LCD subroutines still working now that it appears you disconnected those three lines to make room for the input data? This was never addressed in a video; the previous video featuring the 6502 had these three lines connected, and they are mysteriously missing at the start of this video. I saw this problem coming (only 5 bits of ports remaining on that chip) and was looking forward to hearing about how you worked around it. Edit: Aha! Figured it out - the LCD module has two data modes (8 bit and 4 bit, explained in part 4 of your 6502 playlist), and from glimpses of the code it looks like you switched the hardware and software to 4 bit mode off camera to make some more room - allowing you to move these 3 flags to PORTB.

@timsanders9111 11 ай бұрын

Thanks for this. I was puzzled about why the E, R/W, and RS pins on the LCD were no longer connected too. I'm in the process of designing a PCB of this circuit and this kind of change would be a headache to troubleshoot.

@zachcheung8400 3 жыл бұрын

I think this might be my new favorite video of yours. The way you blended analog, digital, and software together for a keyboard is a work of art.

@fedelecavaliere5249 3 жыл бұрын

20:00 I "studied" this kind of things at school but already forget about it, but you explained that so well I finnaly understand what that symbol stands for!

@insertcreativenamehere492 Жыл бұрын

this man has become my favorite KZfaqr. when he needed to figure out how to distinguish between different sets of 11 bits, my first thought was exactly what he did here. You really are a better teacher than probably most college professors.

@amansharma2870 3 жыл бұрын

Can't wait to build my breadboard projects. This channel always excites me. Thanks for discussing problems that we might run into.

@Rouverius 3 жыл бұрын

Everyone: They is no way to create a truly random value with a computer. Ben Eater: Hold my inverter

@drawapretzel6003 3 жыл бұрын

Technically, since it's actually some gate logic inside the chip that simplifies into "invert" they all have some amount of resistance, capacitance, inductance, etc, and so it fills up a little, tries to turn on, can't sustain it for long, then turns off. Hence why we see it jitter 100 times before it's done, because it doesn't have enough energy to keep whatever gate open inside the logic. Edit: I forgot to get to the whole point of this comment, since the characteristics of the gate are known, it should be possible to do the calculus to determine the oscillation rate and measure the values. Yes, it's almost random though.

@U20E0 3 жыл бұрын

What about using quantum mechanics? You can technically plug anything into a computer, including a quantum random number generator. plus quantum computers are computers.

@MrCool-lo3ls 3 жыл бұрын

@@U20E0 we don't know wether it's actually random. It's just that we can't measure quantum mechanics well enough to pinpoint an electrons position down. I think there is no real randomness, but because i don't know that for sure and neither does anyone else, it's a waste of time to debate it.

@ozzymandius666 3 жыл бұрын

It's easy to generate random numbers electronically, it just cannot be done algorithmically.

@ozzymandius666 3 жыл бұрын

@@MrCool-lo3ls We can measure an electron's position pretty much as precisely as we want. It is simultaneous measurement of position and momentum that is impossible. If you have, say, a resistive thermometer that is precise to say, 3 significant figures, and start reading its resistance to 10, you will be able to get truly random numbers in the last few digits. Real randomness does exist, and will exist forever, because our spatial resolution can not, even in theory, approach Planck levels of precision. Look into the Lorentz Attractor.

@vzwopx 3 жыл бұрын

The work you put into this video series.. incredible. Stay awesome!

@3dlabs99 3 жыл бұрын

These videos are absolutely fantastic -- thank you very much :) Very intuitive when you see the signal on the scope and tweak it to do what you need.

@elclippo4182 3 жыл бұрын

vi and a vintage hp calculator - oldies, but goldies.

@darkstatehk 3 жыл бұрын

This channel is perfect. I love everything on here because it's so well explained and put together in a way that keeps you interested and teaches things you never thought you could learn.

@YouB3anz 3 жыл бұрын

That's a pretty sweet update. Look forward to working on this project in the summer.

@adityasonavane2168 3 жыл бұрын

ONE VIDEO PER MONTH ISN'T ENOUGH .... PLEASE GIVE US MOREEEEEEEEEEEEEE!!! 😭😭😭😭😭

@aydeeaychbee6336 3 жыл бұрын

Just discovered your channel today, it is awesome!

@DerMarkus1982 3 жыл бұрын

"And if we press a key on the keyboard, ... nothing happens." Ouch. That nasty color scheme! 🤣

@BrightBlueJim 3 жыл бұрын

Luckily, the keyboard has protection circuitry that keeps it from burning out chips when they're powered up backwards. I once burned up all twenty or so chips on a breadboard this way.

@BrightBlueJim 3 жыл бұрын

In the previous video, I remember thinking, "oh great, black for positive five volts, ground is orange. What could possibly go wrong?"

@monsieuralexandergulbu3678 3 жыл бұрын

Well, I just love watching you wire up the breadboards! thanks You explain superbly!

@Gr3mI1n Жыл бұрын

Ben Eater, demystifying electronics since Oct 15, 2011 Thank you SIR!

@eanerickson8915 3 жыл бұрын

The effort you put into explaining is greatly appreciated.

@pablogarin 3 жыл бұрын

There's this one thing I really like about your videos, and it's the honesty behind them... most people on youtube try hard to look like they don't make mistakes... you on the other hand, show your mistakes and solve them, teaching the importance of problem solving while doing a project of this kind... without that kind of mindset, this kind of work would fail for sure, but with what you teach, you make sure one can be ready to take on a project like this. Congrats! never regretted subscribing to your channel, best content out there hands out!

@pablogarin 3 жыл бұрын

Just to clarify, I'm referring to the keyboard 5v-GND mishap... =P

@richshealer3755 3 жыл бұрын

I think that some of the blind alleys he runs down, such as the Schmidt trigger problem are recreations of what he ran into while developing the project.

@jojajoja420 3 жыл бұрын

For those of you wondering: This is almost exactly the way modern x86-PCs handle PS/2 and internal (on a laptop) keyboards: After every byte there is an interrupt sent to the cpu (usually hardware-interrupt 2) from the keyboard controller (i8042). The cpu then reads the given byte (using the in-instruction on port 0x60) from the PS/2 device. The only difference is that the keyboard controller already checks the parity, buffers up to 16 bytes and adds some additional logic (e.g. translation from "modern" set-2/3 PS/2 codes to AT codes for very, very old software).

@CaseyWilkesmusic Жыл бұрын

Love your Hewlett-Packard calculator at 27:10! What a cool calculator. We had one growing up and I hadn’t seen one since then

@TheGamingDinosaurRoblox 7 ай бұрын

i have learned so much on this channel and im super thankful

@ManinderSingh-hg3wg 3 жыл бұрын

Thank you Ben for all your videos

@temporarilyoffline 3 жыл бұрын

Great video Ben! I am just now debugging a Via VT82c42 problem and this was great timing. Keep up the good work.

@silvio2402 3 жыл бұрын

Nice videos! I love to watch them!

@seconddaymusic8393 3 жыл бұрын

Ben in 15 years: Running windows 10 on a breadboard PC

@MrCool-lo3ls 3 жыл бұрын

On an old Intel cpu

@electronichaircut8801 3 жыл бұрын

@@MrCool-lo3ls running dos on a z80 or 8088

@user2C47 3 жыл бұрын

When trying to run a computer fast enough to handle NT, wire lengths have to be very precisely measured because the speed of light is a significant factor. Just the reflections from the contacts would make such a thing impossible.

@spammymcspambox4603 3 жыл бұрын

He would probably run Linux because Microsoft wouldn't be interested in compiling Windows for a rare DIY architecture and Windows is closed source so he can't compile it himself.

@Serafimati 3 жыл бұрын

Thanks for your videos, they are incredibly interesting and inspiring!

@kleinesfilmroellchen 3 жыл бұрын

They all love the RC circuit, but they don't know its timing involves differential equations

@sashimanu 3 жыл бұрын

And temperature variability!

@rizalardiansyah4486 3 жыл бұрын

At least it's still a first order! Lol

@chrisj2848 3 жыл бұрын

Love these videos. Awesome work!

@paradox9551 3 жыл бұрын

I've been waiting for this.

@uhlersoth99 3 жыл бұрын

OMG !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Where were you for my high school electronics class!!!!! You are the benchmark in human teaching. I have never been more curious about electronics till I found you. I love your low profile attitude. If you were my teacher I would have become something. Most you -tubers like to show their faces and fail to communicate clearly...I feel like Im' in wonderland finally. All my questions are being answered. My questions I was afraid to ask are answered. You have the books in your bookshelf that you actually understand. Thank you feeding us this valuable knowledge.

@jasonwilliams8730 3 жыл бұрын

Thanks for posting Ben love the videos

@cojawfee 3 жыл бұрын

Of course you have an HP 16C. Way to flex on us.

@BrightBlueJim 3 жыл бұрын

"oh - this old thing??"

@RetroRogersLab 3 жыл бұрын

I really appreciate the way you explain things. I'm also very envious of your 'scope.

@joecolvin4203 3 жыл бұрын

As soon as I have a job again, I'm going to squirrel away some for you. This is what I wished college training was like! P.s. been slowly doing your computer build but in minecraft, been fun figuring this all out!.

@randy7894 3 жыл бұрын

Thank you for explaining everything. I learned an enormous amount of chip tech from your videos.

@aaronrainbolt3154 6 ай бұрын

One important thing you showed here was also the importance of hardware acceleration - sure you could have just fed the bits into the interrupt handler, but instead you built a hardware keyboard accelerator add-on and installed it, then wrote a driver for it. Much simpler code, works more elegantly, and way faster as far as CPU power is concerned. Very nice video, thank you!

@francoisdastardly4405 3 жыл бұрын

Another brilliant video. Thanks !!!

@mattshnoop 3 жыл бұрын

No sadder time than the end of a new Ben Eater video

@sandpaperunderthetable6708 3 жыл бұрын

Tru

@mikecheques3833 3 жыл бұрын

i love your videos! I've learnt so much from you. Thanks

@johnm2012 Жыл бұрын

I'm glad that powering up that nice keyboard in reverse didn't kill it.

@xSATOKU 3 жыл бұрын

Really love this channel

@rpmcnee 3 жыл бұрын

your projects are so cool!

@martinmendez695 3 жыл бұрын

No matter how complex the systems become. The excitement of knowing the basics will never get away. Thanks for all your videos!

@ailijic 3 жыл бұрын

I look forward to each of your videos

@bdafeesh 3 жыл бұрын

Excellent video as always Mr Eater. You are a gift to youtube

@feedmyintellect 3 жыл бұрын

After watching this I will never take my keyboards for granted ever again! Thank you for creating this informative video. 😊🙏🙏🍰

@garthhowe297 3 жыл бұрын

Well done, with a clear explanation.

@frankowalker4662 3 жыл бұрын

Excelent job on the keyboard. I love it.

@bobjs3090 3 жыл бұрын

Nicely done!!

@aa7jc 3 жыл бұрын

Awesome! Great video! very useful

@DukeBG 2 жыл бұрын

In the early videos on 6502 we've used three pins of PORTA of the 6522 to control the LCD (E, RWB, RS). This time they were not connected and there was no mention of that. Did I miss a video where that was rerouted in some way? I'm saying that because in this video we're using all 8 pins of PORTA for the inputs from the keyboard and I was interested in how that is going to conflict with how we were already using them.

@timsanders9111 11 ай бұрын

I have exactly the same question. Searching for some mention of that now.

@zrodger2296 3 жыл бұрын

In the tricky parts I find myself leaning towards the screen, as if that will help me understand it better. And this is all way outside anything I'll ever need to know! As always, well done!

@pJokse 3 жыл бұрын

Now we just need a programmable interrupt controller, so we can turn off and on interrupts and add other things that would generate an interrupt to the mix :D

@ajoyz124 3 жыл бұрын

Thank you ☺️

@sanjayaanuradha7509 3 жыл бұрын

You're one of the amazing guy who teach how actually working inside the computer❤

@richshealer3755 3 жыл бұрын

The HP 16C is my day to day calculator as well! It's about 35 years old and still works great.

@charlieprevost 3 жыл бұрын

Excellent timing with the need to use Schmitt triggers, since I am teaching this right now :)

@ddacombe4752 3 жыл бұрын

These are excellent real world tutorials, thanks Ben

@kennethtsang8569 2 жыл бұрын

Love Ben’s way of explaining Schmitt Trigger 👍

@carlovelasquez7644 3 жыл бұрын

Next video: Making a Quantum computer on breadboards

@ducksonplays4190 3 жыл бұрын

Well yes but no

@carlovelasquez7644 3 жыл бұрын

@@ducksonplays4190 yesn't

@Aquarium78 3 жыл бұрын

I've just finished watching previous video and here goes sequel :)

@MadsonOnTheWeb 3 жыл бұрын

Superp explanation in for the 04 and 14. Thanks a lot

@Archnemesis88 3 жыл бұрын

Very cool video!

@naimgouider6691 3 жыл бұрын

thank you for all the job you do 🖒🖒😊😊

@Frrk 3 жыл бұрын

Super interesting! Thanks.

@jakobs.4877 3 жыл бұрын

He is doing cool projects and he teaches things about electronics. I like it! 👍

@k0pR0LiTh0s 3 жыл бұрын

It's safe to say, you are a real asset to humanity! Thank you.

@metamud8686 2 жыл бұрын

1:39 GND/+5V switched around! 2:38 thank you :-)

@SordidEuphemism 3 жыл бұрын

Thank you for this, Ben. I'm in the process of figuring out how to connect the keyboard of an Amstrad PPC-512 to a more modern PC in the case. While the built-in keyboard isn't PS/2, this (and the prior video) sort of approach should help me out a great deal.

@techwizaman7484 2 жыл бұрын

wow ben your the best .......i learn alot from you God bless you

@JamsMinecraft 3 жыл бұрын

Omg I finally understand what a peak rectifier is. Thanks Ben!

@sleepwalkerbg1 3 жыл бұрын

Thank you Ben. This is how real school should work ! In my 2 decade long experience in the field of electronics i've noticed that it is not the core problem that teaches us , but all those small things behind the curtains along the way. The path to solution is covered with small, invisible problems that you cannot stumble upon until you really dive into a practical realisation ! Example: You try to make lightbulb light up. Simple? Right? You connect battery to switch, then to lightbulb and back to other terminal of battery. And then - how do i create stable mechanical contact? What jacks should i use? What current flows in circuit? Wire gauge? Should i solder where is big amount of heat? .... So many questions arise just by doing the stuff. Nothing is simple, and everything we DO teaches us. My point - theory we mostly learn / teach in school should be tightly "coupled" with parallel practical problem solving ! First basic theory, then application of it , then solving small problems along the way , and then explaining and theory for every one of them... That is real "full" knowledge my friend. Best regards.