Пікірлер

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  @JagStar2 күн бұрын

  This was a really great video to watch. It was awesome to see you describe what you see and try to make sense of it. Real lab coat sleuthing there! The others are correct, that's ringing and, probably, some degree of capacitive coupling from your body to the circuit. I don't really work with the sorts of circuits you do, I'm an old-school tube amplifier guy, but the ringing (if you know about it) really jumps out. I think you might be able to filter it out or "snub" it like @JohannaHammond said, but it's probably not worth the effort for a breadboard circuit. Great video!

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  @areusmartinez83438 күн бұрын

  nunca pidas disculpas por si lo que estas haciendo suena a musica o no, en definitiva sigue siendo compartir conocimiento, compartir cultura de diferentes maneras, pero cultura igual, gracias por el esfuerzo ❤

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  @areusmartinez83438 күн бұрын

  thanks❤

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  @StarDollar15 күн бұрын

  Please make it randomly turn into snake and sell it as a Christmas Challenge gift.

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  @your-dad16 күн бұрын

  I think you could squeze everything on only 1 or 2 breadboards, there's a lot of space you didn't used.

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  @MattFixesStuff17 күн бұрын

  That is so cool. I never worked with those components directly (except for 555timers and debouncing-ics) that you used to store and set all the values. Would be nice if you could explain how they actually work. Like how is it that you turn the knob and the correct register is written and red. And how does it all connect withthe ram the ram. I'd never even think about making something like this without a microcontroller :D

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  @eDoc202018 күн бұрын

  Nice project, and simpler than I was expecting. By adding a few more address counters (and some retrace generation) It should be fairly easy to convert it to a proper raster video output like composite video or even VGA.

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  @bigzaphod18 күн бұрын

  I've been wondering about actual video signal generation! I should try experimenting with that at some point - but I'll have to find an old monitor or something, probably. Sort of wish I hadn't thrown all of my old stuff away 20 years ago. 😛

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  @pokejuice149518 күн бұрын

  I replaced my stick but now the kids are telling me the left controller isn't connecting. Oh they threw it and put the battery back in upside down. Goodbye 1 hour.

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  @colonelbarker20 күн бұрын

  Could I possibly confirm what the five ICs are along the top? Obviously it's the 2112 RAM in the middle? The image isn't *quite* clear enough to see.

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  @bigzaphod20 күн бұрын

  The top row, from left to right: SN74LS32N, SN74LS93N, SY2112A, SN74LS244N, SN74LS08N.

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  @colonelbarker20 күн бұрын

  @@bigzaphod much appreciated!

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  @dldnh20 күн бұрын

  This is EPIC. Such a cool idea and I love how you told the story and put it all together!

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  @vascosantosonfire22 күн бұрын

  love it! do you have a diagram of the circuit ?

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  @bigzaphod21 күн бұрын

  Thanks! I do not yet have a schematic. I'm trying to figure out KiCad so I can maybe put one together, though.

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  @kaoshavoc22 күн бұрын

  Loving your vids. I love the way you talk through the process and say your logic out loud. I don't think that enough people do that and I feel like it's just good for everybody. Also diode steering is a way to get a perfect 50/50 but it does add a few components but realistically most of the time of true 50/50 is not needed at all but I also feel the need to keep saying symmetrical where possible LOL

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  @SystemsPlanet23 күн бұрын

  This qualifies as a "look what I can do". Not DIY friendly.

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  @techdoc9923 күн бұрын

  Really nice project and you explained the thought process behind the design really well! Thanks!

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  @darvonmason424924 күн бұрын

  the resolution of a Etch-A-Sketch is 300 x 200 the Etch-A-Sketch screen diminisons are 154mm x 108mm IMAX aspect ratio the Etch-A-Sketch pointer is 0.5mm resolution:308 x 216 round down to a reasonable format:300 x 200

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  @Rpol_40425 күн бұрын

  All using discrete logic - love it! Nowadays it’s hard to find folks who enjoy designing circuits without microcontrollers. My employer just recently won a contract where micros are not allowed for the control mechanism. Now I get the challenge of designing it using discrete logic in a small footprint. Can’t wait!

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  @Sarahbuildsstepsequencers16 күн бұрын

  CMOS is all I use on my channel.

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  @manusoftar25 күн бұрын

  The REAL problem is that your "notes" are completely out of tune... you could have googled for the propper frequencies.

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  @eDoc202013 күн бұрын

  With the current circuit design it's literally impossible to properly tune more than 4 notes.

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  @itsapadilla25 күн бұрын

  “Did I… Did I just make a mullet?” 😂

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  @BladeScraper25 күн бұрын

  Very impressive, well done!

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  @jj74qformerlyjailbreak326 күн бұрын

  Love it.

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  @bertbrecht754026 күн бұрын

  Nice job finishing! Always the most challenging part for me.

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  @jp.girardi26 күн бұрын

  This is one of the coolest things I've ever seen! Beyond awesome!

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  @DiaconescuAlexandru202426 күн бұрын

  02:27 since you're working with a lot of digital stuff, all the complex triggers and the 100MHz bandwidth (if you hack it, which is very easy to do) will certainly not be overkill :) The 4 channels are also extremely nice, keep in mind the DS1054Z will get a bit slow when all 4 of em are turned on, and when you also turn on the FFT it'll become barely useable. I've got a DHO804 (which is a lot nicer) but a DS1054Z is also more than enough for electronics beginners. As a tip, set the probes to 1X when measuring very small signals (current trough a resistor, transistor saturation voltage, etc) and 10X for everything else, since on 10X the bandwidth is much higher. Rigol themselves have videos on YT on how to use most features of the oscilloscope, but most stuff is universal to all digital oscilloscopes.

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  @cosnovae26 күн бұрын

  this dude makes redstone builds in real life

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  @pikadroo26 күн бұрын

  What’s with your youtube electronics diy clowns and this need to use usb c soldering irons. Just buy and ac soldering iron ya goof

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  @GopnikStar26 күн бұрын

  I thought an e-ink display would look cool, then I thought it'd look like a normal etch-a-sketch and remove the point of making it electronic

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  @viciousslayer26 күн бұрын

  force nut into plastic with soldering iron.......

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  @jamescollier326 күн бұрын

  This old Tony

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  @EpicMonkeyFries26 күн бұрын

  Ooooh this video is gonna get big. Excellent job!

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  @bache249326 күн бұрын

  What a great idea. I like the way you approached it. Thumbs up and thanks for the idea with the LS30. Greetings from Germany.

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  @Sjeedughait26 күн бұрын

  your wrist watch strap is too tight.

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  @GothGuy88526 күн бұрын

  awesome project! turned out great! 😀 you could also add a motion sensor with a low sensitivity, so that when you shake the electronic Etch-a-sketch briskly ,it would trigger a total refresh of all LED's or have it so that pushing one of the buttons that would clear the last LED(S) that are lit, for a correction or edit function.

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  @bigzaphod26 күн бұрын

  I somehow forgot to mention it, but pressing the right button clears the screen. I like the idea of a toggle mode for erasing.

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  @GothGuy88526 күн бұрын

  @@bigzaphod I think you might have, and I did not cach it 😀

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  @jozefsoucik311526 күн бұрын

  you can use threaded inserts as "bolts" for screws. just need solder iron on 200. Or you just could put solder iron on 200 and push to bolt...it will goes into as into butter.

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  @jettrom60926 күн бұрын

  This is genuinely so cool.

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  @danielharpaz257826 күн бұрын

  Good stuff

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  @stefanolassandro88626 күн бұрын

  That was so ingenious and fun to watch! Congrats for the great work ❤ I even learned about some chips I didn't know about, or never understand how they worked. Thank you!

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  @TesserId26 күн бұрын

  "...without using a micro-controller" !!! Subcribed

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  @Ciubix851326 күн бұрын

  This is so cool

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  @imakexyz496826 күн бұрын

  Cool project. And also cool it was not done with an Arduino :-) Do you watch This old Tony by chance?

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  @bigzaphod26 күн бұрын

  Thanks! I’m not a regular viewer of This Old Tony, but I do watch his stuff from time to time.

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  @TheSelfUnemployed26 күн бұрын

  This is so epic!

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  @newmonengineering26 күн бұрын

  One almost forgotten method of prototyping a ton of wires like this is called wire wrapping. You buy a wrapping tool and 30awg or so wrapping wire. You strip about 1/2 inch or so of the wire, slide it in the tool and then put the tool over the pin. Thin you just twist like a screwdriver. I find it significantly faster then soldering each wire. You still need to solder some things but you definitely save time over all. If you do many prototypes it's something to consider. So many people today have no idea this even exists. Just a thought and something to try in the future. Once everything is working you can always add some solder to the pins to permanently fix them after.

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  @MechanicaMenace26 күн бұрын

  It's definitely making a resurgence. For a while wirewrap sockets were expensive and decent wrapping wire was hard to source but neither is the case anymore.

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  @thatonesnowboarde26 күн бұрын

  very impressive. i wouldn't advise to wear 2.4ghz+cpu on your wrist though "Results of the study indicate that using a radio frequency electromagnetic field (2.4 GHz) has a clearly negative effect on the metabolic activity of glioblastoma cells." "This study indicated that RFW might cause structural changes and oxidative stress in the heart. Also, exposure to radiofrequency decreased total antioxidant activity in heart tissue with histological changes, including myocardium hypertrophy and decreased number of myocytes."

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  @erickhar26 күн бұрын

  This is such a good video. I think your channel could BLOW UP if you focus on thumbnail and title a bit more. I almost didn't click because the thumbnail looked a bit bland

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  @bigzaphod26 күн бұрын

  Thanks! I don't really know how to make the thumbnails pop, tbh. Hopefully I'll figure that out at some point.

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  @hackepeter_10126 күн бұрын

  @@bigzaphod just search for a tutorial XD cool video btw

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  @CallousCoder26 күн бұрын

  I don’t know what’s more impressive? Actually doing it in discrete logic, or the art that was produced on it?❤

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  @bscheirman26 күн бұрын

  This was really fun to watch. I know it’s a TON of work (the videos I mean), but the end product was really good!

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  @lyspere26 күн бұрын

  you could make it into the snake game, btw love your content, I would be grateful if you would mind checking out mine

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  @colonelbarker27 күн бұрын

  Great video! You should absolutely run it up as a PCB. I wonder if it's worth throwing in some logic to turn off drawing, so you can move the cursor to where you want it then draw. Or alternatively flip the bit of what is being written, so you can erase bits you have gone over. I'd *love* to see some schematics for the whole thing so I can see the bits the video glossed over a bit. Looks like a fun project for a makerspace.

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  @colonelbarker26 күн бұрын

  Welp- I've just ordered 16 of these 8x8 led displays and some encoders.

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  @bigzaphod26 күн бұрын

  hehe - have fun!

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  @markday314527 күн бұрын

  If you end up needing to do wiring like the display again, you might want to look into wire wrapping, a vintage technique. The wires are thin. You wind the stripped end around the pin. If you make a mistake, you can unwind and fix the mistake. Once it's working right, you can solder to make it more robust. This was a really cool idea for a project. Well done!

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  @azurefog26 күн бұрын

  As I watched that part I thought, "He reinvented wire wrap from first principles."

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  @stevebabiak699726 күн бұрын

  Not sure wire wrapping would be easy to do with those particular LED display devices. Those LEDs have short pins - wire wrapping depends on a few turns of the wire getting wrapped around a pin, I don’t think those pins are long enough. The other challenge is the proximity of the pins to one another and the size of the tool used to do the wire wrapping - it could be tough to get at all the pins. Not impossible, but not so easy. Been far too many decades since I last watched the wire wrapping being done, so my recollections might not be quite accurate, but I still suspect that those LEDs might be tough to wire wrap. He used bread boards for everything else, so those components have no bearing on the use of wire wrapping.

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  @lachlanlau26 күн бұрын

  as a hobbyist who repairs cassette decks I despise wire wraps. Connectors all the way!!

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  @jerril4227 күн бұрын

  Magnificent! (Not a typical comment for me, but I thought it tied in well with the DS9 episode you waere watching. I should use it more often, it's a good word). I like the debounce chip, it seems crazy that someone has only come out with one of these recently. Thanks Sean, take care.

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  @deadly_dave27 күн бұрын

  Nice... Well done sir.