World's worst video card? The exciting conclusion
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Published 2019-07-13
Let's build a circuit that displays an image on a VGA monitor! In part 2, I talk about how VGA uses analog RGB signals to send different color pixels to the monitor. I use an EEPROM to store an image and build a simple digital-to-analog converter to generate the color signals to successfully display an image.
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All Comments (21)
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Want more information or want to try building this yourself? Check out eater.net/vga for schematics, kits, and more!
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NVIDIA hates him! Find out how he made his own video card with one weird trick!
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"what do you want from me, I'm trying to build a video card on breadboards" - best thing I've heard all day
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this guy teaching electronics, graphics design, programming and everything in a single video... man that's my entire engineering degree.
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No way he changed between 4 ROMs in order to display his patreons and the bird as well. Just amazing.
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Also showing off your photoshop, vim, python, and bash skills. This is truly "full stack" engineering.
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Man I want Ben's super power of being able to pull properly sized wires right out of thin air.
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Parts List: 10 Mhz Crystal Oscillator (Full Can) 28C256 EEPROM 74LS161 (x6) 74LS04 (x4) 74LS30 (x8) 74LS00 (x3) 1.5k Ohm Resistor (x3) 680 Ohm Resistor (x3) 15 Pin VGA Female Breakout Board Hookup / Jumper Wire 4 Breadboards
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I love projects like this. They don’t really serve any practical purpose but they’re invaluable for learning concepts. And just to understand what goes into every day stuff we take for granted. In a nutshell, awesome videos Ben!
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All my life, this is exatly the level I've wanted someone to explain and demonstrate me how a picture on the screen is created. Thank you very much!
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Was watching this to fall asleep, ended up getting a coffee.
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Beautiful stuff. I've always worried that the HOW gets invisibly embedded in megachips, potentially lost forever. You keep it alive and visible to the learner. Thanks for that.
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"I'm not going to hook this to a computer, at least not yet..." flashes image of breadboard computer
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"It might not be the most incredible resolution, but what do you want from me, I'm trying to build a video card from breadboards". Ahahahah bless you Ben, this is amazing work!
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That was the most epic way I have ever seen someone honor their patreons
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You can tell a hardware person's writing code when there's a try-catch just to check for a valid index.
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As an analog IC designer, this is so fascinating to watch. You're deeply knowledgeable in everything you do, and you're hacking in the truest sense of the word. At the same time, you do things where I'm like "Wait! That's illegal!" And any applications engineer would have a stroke over. And it just... Works beautifully. And it's an excellent teaching tool.
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I love how you can just hot swap out EEPROM chips to change the image. It makes it feel like some vintage slideshow tech from an old sci-fi movie.
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This dude deadass built a video card from IC chips and directly plugged it into a flat screen monitor. He did everything from scratch. That's real talent.
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Oh man, that 4 bit output voltage divider really tickled me. That's so true genius in it's simplicity.
