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Doom running on an IKEA TRÅDFRI RGB GU10 Lamp (only 108 kB RAM) (self.itrunsdoom)

submitted by next-hack3 - announcement

Hacked an IKEA TRÅDFRI lamp (model: LED1923R5) to run Doom on it!

Specs:

Cortex M33 @ 80 MHz, 96 kB + 12 kB RAM, 1 MB Flash, 8 MB external SPI (added for WADs. I don't have 16 MB parts, so I cannot test full commercial WADs)

Display: 160 x 128, 16 bpp

Sound implemented, music & multiplayer missing.

All engine features of vanilla Doom are implemented!

Links:

Video

Github repository

How-to article

Hackaday.io article

​

https://preview.redd.it/d2j33iwuuz471.jpg?width=928&format=pjpg&auto=webp&s=654f1914d09c6fc308dd93b6b322ab0de9f34ea2

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[–]dpkonofa[M] [score hidden] stickied comment (0 children)

This is bad ass. I’m gonna sticky this one because this is totally in the spirit of this.

[–]Saint_Clair 392 points393 points  (7 children)

Now this.

This is why I stay on this sub.

[–]Tenzu9 220 points221 points  (6 children)

Actual technical skills, and genuine effort spent. Unlike the clowns who keep reposting the pregnancy test bullshit to whore karma.

[–]NotAnotherNekopan 81 points82 points  (2 children)

It also serves as an excellent demonstrator for just how inexpensive computing has becone, the reason I joined up here. What used to be considered specs expensive computers would have has now been downsized into a $10 lightbulb. It's shocking to see.

[–]Gloriosus747 28 points29 points  (1 child)

That's moore's law for you

[–]NotAnotherNekopan 24 points25 points  (0 children)

Exactly. Here is, for me, the best way to understand and see the implications of Moore's Law.

[–]smugempressoftime 10 points11 points  (2 children)

True why is it always the actually good ones with effort spent that get undervoted and the reposted ones get thousands of upvotes Edit this post currently has 1k but the pregnancy reposts have still 2-4k

[–]dpkonofa[M] 4 points5 points  (1 child)

I’m pretty sure we removed most of the pregnancy reposts. If not, do your job and report them and we’ll remove them ASAP.

[–]amdrinkhelpme 65 points66 points  (7 children)

That's impressive! Now replace the LCD with a Nipkov disc and use the RGB LEDs as a display.

[–]htmlcoderexe 23 points24 points  (3 children)

That's a name I haven't heard in a long long time

[–]amdrinkhelpme 12 points13 points  (2 children)

I'm assuming 1930's or that time Technology Connections or William Osman made videos on it?

[–]htmlcoderexe 6 points7 points  (1 child)

Reading some old, very old books on history of television/video display devices, where CRT was the most current tech. They were definitely outdated when I was reading them.

[–]amdrinkhelpme 10 points11 points  (0 children)

Nice. I've a book detailing how to DIY a CRT TV from 1955, it also mentions Nipkow Discs in the preface. And then states that radio amateurs are superior hobbyists to photographers, because apparently letting people enjoy things was already out of fashion then.

[–]donald_314 4 points5 points  (2 children)

*Nipkow

[–]amdrinkhelpme 2 points3 points  (1 child)

Matter of anglicization; seeing "Nipkow" in English text makes me read it out as "Nipkau" in my head, which is honestly way more annoying than it should be.

[–]donald_314 0 points1 point  (0 children)

Not in this case. The person was German.

[–]Kazri_1 91 points92 points  (1 child)

now you can play doom, in a post-apocalyptic world

[–]NotoriousMagnet 29 points30 points  (0 children)

would it be the real-life then?

[–]mattcoady 26 points27 points  (0 children)

Using the ammo count as an fps counter is so clever

[–]OPhasballz 19 points20 points  (0 children)

make sure to crosspost to /r/ikeahacks for lots of confused comments.

[–]on99er 8 points9 points  (2 children)

How to upload that?

cp210x? Anyway thats impressive!

[–]next-hack[S] 22 points23 points  (1 child)

To program the MCU you need an SWD programmer (e.g. JLINK). The WAD can be uploaded to the external flash via YMODEM, so you need an USB to TTL UART dongle (yes, many of them based on CP210x, but similar are good too). The VTARGET/SWDIO/SWCLK/RX/TX/GND pins are exposed on the debug header.
EDIT: Uploading the WAD takes ages, more than 10 minutes for the shareware WAD. Luckily you need to do this only once.

[–]jazzyjard 2 points3 points  (0 children)

That's a lot of acronyms lmao

[–]feliscat 4 points5 points  (0 children)

Nice!

[–]despacito474 2 points3 points  (0 children)

I saw your Doomworld thread on this hehe

[–]ksandom 1 point2 points  (0 children)

This is a really impressive hack[/project]. Well done.

[–]dasferdinand 1 point2 points  (0 children)

I love this.

[–]LikeThosePenguins 1 point2 points  (0 children)

I have so many questions.

And so much awe. Brilliant.

[–]riba2233 0 points1 point  (0 children)

damn

[–]PeleKen 0 points1 point  (2 children)

Does that mean Doom could run on a Commodore 128? Reduced colours of course.

[–]Scoth42 0 points1 point  (1 child)

Not even close. A Commodore 128 has both a variation on the original 6502-derived processor of the 64 (which runs under 1MHz in PAL and not faster than 1.something MHz in NTSC, I think there are ways for the C128 to get up to 2MHz) and a 4mhz Z80 8-bit processors. The lamp has an 80MHz 32-bit ARM processor. It's several magnitudes faster. They're also doing some fancy caching over the SPI, it looks like. The C128 doesn't even have the same kind of graphics capability or framebuffer setup.

There's more to a computer than its RAM capacity.

[–]PeleKen 0 points1 point  (0 children)

Right...like little bits of quantum and stuff.