BigZaphod
BigZaphod
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I built an electronic Etch-A-Sketch without a microcontroller
I built an Etch-A-Sketch-like using a bunch of old logic chips and limited electronics experience!
-- Stuff
Dot Matrix Displays: amzn.to/3RAI5AK
Rotary Encoders: amzn.to/3VwFOr9
LogiSwitch debouncing ICs: logiswitch.com
Prototyping Boards: amzn.to/3RtXkvi
Chip Assortment Kit (with NE555): amzn.to/3x9cb6I
TTL ICs: amzn.to/40WH75c
BB830 Solderless Breadboards: amzn.to/3TkNPOY
Breadboard kit with components: amzn.to/3MYwfho
Power supply: amzn.to/3uAYxIE
Rigol DS1054Z oscilloscope: amzn.to/43C3v5m
PINECIL Soldering Iron: amzn.to/3xnKOGD
Multimeter: amzn.to/49PUg45
Antistatic mat: amzn.to/49RhcQi
My Wife's Books: amzn.to/47yt9Ji
(Maybe you and/or someone you know will like them!)
Переглядів: 10 398

Відео

I made a music box with some 555 timers and an old RAM chip
Переглядів 8 тис.2 місяці тому
It makes music! Well... it makes notes! Well... it makes sounds in a sequence that, if you're feeling generous, could be called a song! Stuff Chip Assortment Kit (with NE555): amzn.to/3x9cb6I Tiny DPDT slide switches: amzn.to/3wVl97H TTL ICs: amzn.to/40WH75c Assortment of push buttons: amzn.to/4a1A0Mv BB830 Solderless Breadboards: amzn.to/3TkNPOY Breadboard kit with components: amzn.to/3MYwfho ...
Addressing 4-bit static RAM with an 8-bit counter
Переглядів 8023 місяці тому
I combined two of my previous circuits into something just about equal to the sum of their parts. I also experimented with a new style for this video, so let me know if it works. Links Synertek 1981-1982 Data Catalog (SY2112A): web.archive.org/web/20221113021101if_/archive.6502.org/datasheets/synertek_data_catalog_1981_1982.pdf Texas Instruments SN74LS191N Datasheet: www.ti.com/lit/ds/symlink/s...
Learning how to use my Rigol DS1054Z oscilloscope
Переглядів 2,4 тис.3 місяці тому
Thanks to GeekAndDad, I have my first oscilloscope! Now I'll have to learn how to use it. Links GeekAndDad on Mastodon: mastodon.social/@GeekAndDad Stuff Rigol DS1054Z oscilloscope: amzn.to/43C3v5m TTL ICs: amzn.to/40WH75c Assortment of push buttons: amzn.to/4a1A0Mv BB830 Solderless Breadboards: amzn.to/3TkNPOY Breadboard kit with components: amzn.to/3MYwfho Power supply: amzn.to/3uAYxIE Multim...
Building an adjustable clock source and using it to count to 255
Переглядів 9593 місяці тому
A digital circuit project I have in mind may need a clock I can start, stop, and step so I built Ben Eater's adjustable clock module (with some modifications) and hooked it up to an 8-bit counter with pretty blue LEDs. Links Ben Eater's clock module page: eater.net/8bit/clock Ben Eater's clock module videos: ua-cam.com/video/kRlSFm519Bo/v-deo.html, ua-cam.com/video/81BgFhm2vz8/v-deo.html, ua-ca...
Experimenting with static RAM
Переглядів 3,7 тис.4 місяці тому
Manually reading and writing bits using a static RAM chip from 1984. Links Synertek 1981-1982 Data Catalog: web.archive.org/web/20221113021101if_/archive.6502.org/datasheets/synertek_data_catalog_1981_1982.pdf Texas Instruments SNx4LS245 Data Sheet: www.ti.com/lit/ds/symlink/sn74ls245.pdf Stuff Logic Probe: amzn.to/3SfDRz4 TTL ICs: amzn.to/40WH75c Power supply: amzn.to/3uAYxIE Breadboard kit: a...
Atari punk console piano synth thing
Переглядів 1,5 тис.4 місяці тому
After a brief detour building a "piano keyboard" for my 555-based noisemaker circuit, I evolved it into an implementation of the Atari Punk Console. Links Atari Punk Console: sdiy.info/wiki/Atari_Punk_Console 555 Timer Tutorial: www.build-electronic-circuits.com/555-timer/ 555 Timer Calculator: www.build-electronic-circuits.com/circuit-calculator-conversion/555-timer-calculator/ Texas Instrumen...
Generating sound with a 555 and a speaker
Переглядів 1,5 тис.5 місяців тому
I took my prior 555 timer circuit and hooked up a speaker to synthesize some less-than-pleasing sounds! The basic 555 circuit was first built in an earlier video (ua-cam.com/video/ajbUbB27jPE/v-deo.html) and I think it was modified during the counter series (part 1: ua-cam.com/video/4waJTAkkUM8/v-deo.html) although I can't quite remember for sure. Links Texas Instruments xx555 Precision Timers ...
I fixed my 4 digit counter circuit (The Great Multi-Digit Saga: Part 3)
Переглядів 5295 місяців тому
Talking about the problems I had fixing my 4 digit electronic counter circuit. This turned into a multi-part miniseries: Part 1: ua-cam.com/video/4waJTAkkUM8/v-deo.html Part 2: ua-cam.com/video/-gGACdAnjh8/v-deo.html Part 3: (you are here) Links HLF SN74LS160N Data Sheet: hlf-ic.cn/upload/202108/SN74LS160N HLF.pdf HLF SN74LS162N Data Sheet: hlf-ic.cn/upload/202108/SN74LS162N HLF.pdf (Possibly w...
I thought 4 digits would be easy but everything goes wrong (The Great Multi-Digit Saga: Part 2)
Переглядів 1,8 тис.5 місяців тому
I tried to add 2 more digits to my 2 digit counter circuit, but it didn't go well. This turned into a multi-part miniseries: Part 1: ua-cam.com/video/4waJTAkkUM8/v-deo.html Part 2: (you are here) Part 3: ua-cam.com/video/hWfS120Hbak/v-deo.html Links HLF SN74LS160N Data Sheet: hlf-ic.cn/upload/202108/SN74LS160N HLF.pdf HLF SN74LS162N Data Sheet: hlf-ic.cn/upload/202108/SN74LS162N HLF.pdf (Possib...
Upgrading the counter to a two digit display (The Great Multi-Digit Saga: Part 1)
Переглядів 7675 місяців тому
I expand the counting circuit I've been working on to support more than one digit! This turned into a multi-part miniseries: Part 1: (you are here) Part 2: ua-cam.com/video/-gGACdAnjh8/v-deo.html Part 3: ua-cam.com/video/hWfS120Hbak/v-deo.html Links HLF SN74LS160N Data Sheet: hlf-ic.cn/upload/202108/SN74LS160N HLF.pdf HLF SN74LS162N Data Sheet: hlf-ic.cn/upload/202108/SN74LS162N HLF.pdf (Possib...
My first 555 timer circuit
Переглядів 2,3 тис.5 місяців тому
In which I hook up a 555 timer IC and try to decipher how it works! Links 555 Timer Tutorial: www.build-electronic-circuits.com/555-timer/ 555 Timer Calculator: www.build-electronic-circuits.com/circuit-calculator-conversion/555-timer-calculator/ Capacitor Value Calculator: circuitdigest.com/calculators/capacitor-value-code-calculator NE555P Data Sheet: www.ti.com/lit/ds/symlink/ne555.pdf Stuff...
Fixing my counter's bouncy button
Переглядів 7 тис.6 місяців тому
A long tale of the trials and tribulations of debouncing my pushbutton! Links Debounce Your Noisy Buttons: hackaday.com/2015/12/09/embed-with-elliot-debounce-your-noisy-buttons-part-i/ Texas Instruments Hex Schmitt-Trigger Inverters Data Sheet: www.ti.com/lit/ds/symlink/sn74ls14.pdf Wolfram|Alpha: www.wolframalpha.com Ultimate Guide to Switch Debounce Series: www.eejournal.com/?s=Ultimate Guide...
I made a counter with a button and a seven segment LED display
Переглядів 5 тис.6 місяців тому
Follow along as I count up to 9 button presses on a 7 segment display! Links SN74LS160N Data Sheet: hlf-ic.cn/upload/202108/SN74LS160N HLF.pdf SN74LS162N Data Sheet: hlf-ic.cn/upload/202108/SN74LS162N HLF.pdf SN74LS48N Data Sheet: hlf-ic.cn/upload/202108/SN74LS48N HLF.pdf 7 Segment Display Data Sheet: www.xlitx.com/datasheet/5161AS.pdf 7 Segment Display: amzn.to/3viAu1l TTL ICs: amzn.to/40WH75c...
Hooking up a seven segment LED display
Переглядів 4,3 тис.6 місяців тому
I thought it'd be fun to hook up an old fashioned 7 segment LED display using the driver IC that came in the TTL chip kit! [This is my first attempt at a 4K video (still using an iPhone and a Yeti, but this time I captured with reincubate.com/camo/ instead of OBS). I also tried to improve(?) the audio levels in this one, but i find that whole a process a bit of a dark art so I don't know if it ...
Making an inverter from a transistor
Переглядів 4,2 тис.6 місяців тому
Making an inverter from a transistor
Trying to understand pull up and pull down resistors
Переглядів 2,3 тис.7 місяців тому
Trying to understand pull up and pull down resistors
Quest 2 controller repair: Fixing a drifting thumbstick
Переглядів 2,7 тис.7 місяців тому
Quest 2 controller repair: Fixing a drifting thumbstick
Building a 1 bit half adder took 2 whole people
Переглядів 1,2 тис.7 місяців тому
Building a 1 bit half adder took 2 whole people
Exploring Capacitors
Переглядів 5117 місяців тому
Exploring Capacitors
Using an inverter to switch off the LED: Difficult when tired!
Переглядів 1 тис.7 місяців тому
Using an inverter to switch off the LED: Difficult when tired!
Contemplating starting a project
Переглядів 5278 місяців тому
Contemplating starting a project
Tree Cutting Time Lapse
Переглядів 3328 місяців тому
Tree Cutting Time Lapse
Making a Knife
Переглядів 863 роки тому
Making a Knife
Sprite Altas Tool
Переглядів 1 тис.5 років тому
Sprite Altas Tool
Console Mouse Input
Переглядів 2016 років тому
Console Mouse Input
Swift Metal Console Window
Переглядів 1016 років тому
Swift Metal Console Window
Swift and Metal Console
Переглядів 1236 років тому
Swift and Metal Console
Sim Game Thing Update
Переглядів 1736 років тому
Sim Game Thing Update
Codea Field of Vision
Переглядів 1706 років тому
Codea Field of Vision

КОМЕНТАРІ

  • @JagStar
    @JagStar День тому

    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!

  • @areusmartinez8343
    @areusmartinez8343 7 днів тому

    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 ❤

  • @areusmartinez8343
    @areusmartinez8343 7 днів тому

    thanks❤

  • @StarDollar
    @StarDollar 14 днів тому

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

  • @your-dad
    @your-dad 15 днів тому

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

  • @MattFixesStuff
    @MattFixesStuff 17 днів тому

    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

  • @eDoc2020
    @eDoc2020 17 днів тому

    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.

    • @bigzaphod
      @bigzaphod 17 днів тому

      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. 😛

  • @pokejuice1495
    @pokejuice1495 18 днів тому

    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.

  • @colonelbarker
    @colonelbarker 19 днів тому

    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.

    • @bigzaphod
      @bigzaphod 19 днів тому

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

    • @colonelbarker
      @colonelbarker 19 днів тому

      @@bigzaphod much appreciated!

  • @dldnh
    @dldnh 20 днів тому

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

  • @vascosantosonfire
    @vascosantosonfire 21 день тому

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

    • @bigzaphod
      @bigzaphod 21 день тому

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

  • @kaoshavoc
    @kaoshavoc 21 день тому

    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

  • @SystemsPlanet
    @SystemsPlanet 22 дні тому

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

  • @techdoc99
    @techdoc99 22 дні тому

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

  • @darvonmason4249
    @darvonmason4249 24 дні тому

    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

  • @Rpol_404
    @Rpol_404 24 дні тому

    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!

  • @manusoftar
    @manusoftar 24 дні тому

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

    • @eDoc2020
      @eDoc2020 12 днів тому

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

  • @itsapadilla
    @itsapadilla 24 дні тому

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

  • @BladeScraper
    @BladeScraper 24 дні тому

    Very impressive, well done!

  • @jj74qformerlyjailbreak3
    @jj74qformerlyjailbreak3 25 днів тому

    Love it.

  • @bertbrecht7540
    @bertbrecht7540 25 днів тому

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

  • @jp.girardi
    @jp.girardi 25 днів тому

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

  • @DiaconescuAlexandru2024
    @DiaconescuAlexandru2024 25 днів тому

    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.

  • @cosnovae
    @cosnovae 25 днів тому

    this dude makes redstone builds in real life

  • @pikadroo
    @pikadroo 25 днів тому

    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

  • @GopnikStar
    @GopnikStar 25 днів тому

    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

  • @viciousslayer
    @viciousslayer 25 днів тому

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

  • @jamescollier3
    @jamescollier3 25 днів тому

    This old Tony

  • @EpicMonkeyFries
    @EpicMonkeyFries 25 днів тому

    Ooooh this video is gonna get big. Excellent job!

  • @bache2493
    @bache2493 25 днів тому

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

  • @Sjeedughait
    @Sjeedughait 25 днів тому

    your wrist watch strap is too tight.

  • @GothGuy885
    @GothGuy885 25 днів тому

    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.

    • @bigzaphod
      @bigzaphod 25 днів тому

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

    • @GothGuy885
      @GothGuy885 25 днів тому

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

  • @jozefsoucik3115
    @jozefsoucik3115 25 днів тому

    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.

  • @jettrom609
    @jettrom609 25 днів тому

    This is genuinely so cool.

  • @danielharpaz2578
    @danielharpaz2578 25 днів тому

    Good stuff

  • @stefanolassandro886
    @stefanolassandro886 25 днів тому

    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!

  • @TesserId
    @TesserId 25 днів тому

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

  • @Ciubix8513
    @Ciubix8513 25 днів тому

    This is so cool

  • @imakexyz4968
    @imakexyz4968 25 днів тому

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

    • @bigzaphod
      @bigzaphod 25 днів тому

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

  • @TheSelfUnemployed
    @TheSelfUnemployed 25 днів тому

    This is so epic!

  • @newmonengineering
    @newmonengineering 25 днів тому

    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.

    • @MechanicaMenace
      @MechanicaMenace 25 днів тому

      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.

  • @thatonesnowboarde
    @thatonesnowboarde 26 днів тому

    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."

  • @erickhar
    @erickhar 26 днів тому

    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

    • @bigzaphod
      @bigzaphod 26 днів тому

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

    • @hackepeter_101
      @hackepeter_101 25 днів тому

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

  • @CallousCoder
    @CallousCoder 26 днів тому

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

  • @bscheirman
    @bscheirman 26 днів тому

    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!

  • @lyspere
    @lyspere 26 днів тому

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

  • @colonelbarker
    @colonelbarker 26 днів тому

    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.

    • @colonelbarker
      @colonelbarker 26 днів тому

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

    • @bigzaphod
      @bigzaphod 26 днів тому

      hehe - have fun!

  • @markday3145
    @markday3145 26 днів тому

    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!

    • @azurefog
      @azurefog 25 днів тому

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

    • @stevebabiak6997
      @stevebabiak6997 25 днів тому

      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.

    • @lachlanlau
      @lachlanlau 25 днів тому

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

  • @jerril42
    @jerril42 26 днів тому

    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.

  • @deadly_dave
    @deadly_dave 26 днів тому

    Nice... Well done sir.