iiinova — where your digital self keeps evolving

Tholin ΘΔ @tholin.bsky.social · 08/10/2026

Secret option: theranizing materials hazard Image credit: @starflowerr.bsky.social

Tholin ΘΔ @tholin.bsky.social · 03/08/2026

Talking about "my EF badge" has been getting increasingly confusing since I’ve been making them for a while now, so here is a useful infographic, including a peek at what I’ll be rocking this year.

011

Tholin ΘΔ @tholin.bsky.social · 23/06/2026

And here is the full thing. Fabbed through wafer.space Photos by @mith.ro

052

Tholin ΘΔ @tholin.bsky.social · 23/06/2026

690x585µm, GlobalFoundries 180nm process Artist is @starflowerr.bsky.social Different lighting conditions on this one, helps the lineart shine through more

190

Tholin ΘΔ @tholin.bsky.social · 23/06/2026

870x1345µm, GlobalFoundries 180nm process Artist is @lunarmidnight.bsky.social

160

Tholin ΘΔ @tholin.bsky.social · 27/01/2026

You can connect a TMS9918 VDP to a CH32V003 if you try hard enough.

120

Tholin ΘΔ @tholin.bsky.social · 10/11/2025

You can connect PATA drives to a CH32V003 microcontroller if you try hard enough. Even had one GPIO pin left in the end!

041

Tholin ΘΔ @tholin.bsky.social · 05/10/2025

I wrote a custom network stack in C to run on my custom silicon RISC-V core, supporting both IPv4 and IPv6 and its now good enough to make HTTP requests. But maybe I'll turn that around and have it accept HTTP requests. We'll see. feat. a really ugly bodge to prevent over-current on the memory bus

071

Tholin ΘΔ @tholin.bsky.social · 17/01/2025

Its a bit all over the place and somewhat cursed, but ya'll will now be able to read about my most complex and most bugged custom EF Con Badge yet. tholin.dev/i386-badge/

141

Tholin ΘΔ @tholin.bsky.social · 26/12/2024

Another day, another cursed bodge in the morning.

131

Tholin ΘΔ @tholin.bsky.social · 04/11/2024

Gorgeous dieshots of my two custom integrated circuits from GFMPW-1, and this new entry on my website with details on what I managed to accomplish on this shuttle: tholin.dev/custom_silic...

0103

Tholin ΘΔ @tholin.bsky.social · 28/10/2024

I am once again running large algorithms on hardware that was never, in anyone's dreams, designed to handle them! This time: LLM on a Z80. This took a really, really long time, so I hope people will at least find it funny. github.com/89Mods/z80-llm

152

Tholin ΘΔ @tholin.bsky.social · 18/10/2024

I have booted Linux on the Eurofurence Cyber Badge and can now control the lightshow from the comfort of Linux userspace. github.com/89Mods/ef28-...

41995

Tholin ΘΔ @tholin.bsky.social · 17/06/2024

Today, I successfully fit a whole DDR2 memory controller into a $1.50, 240 LU CPLD. It is ungodly slow, but appears to work without dropping bits. Lots of optimization left to do, but still got 25% unused space on the CPLD. github.com/89Mods/mini-...

030

Tholin ΘΔ @tholin.bsky.social · 05/03/2024

You can now do real astronomy in my Avalon #VRChat world now that the telescope is adjustable with a working viewfinder, and get amazing views like this one. I also updated OpenFlight and the video player can now play side-by-side 3D videos. t.co/CavG0Bbo6z

083

Tholin ΘΔ @tholin.bsky.social · 15/02/2024

TinyTapeout chips finally got delivered! This is where my whole journey into custom silicon began, so kinda ironic I’m receiving this long after my first fully custom ICs from GFMPW-0. Still, gonna do my best to test all of my designs on there.

000

Tholin ΘΔ @tholin.bsky.social · 19/12/2023

New post up on my website about that one time I built a turing-complete computer around a 1-bit CPU. People keep telling me it has sigbovik vibes, so it must be good. tholin.dev/mc14500/

000

Tholin ΘΔ @tholin.bsky.social · 05/10/2023

New page on my website for me to show some old and new side-projects of mine that I still think deserve some spotlight tholin.dev/misc_comps/

010

Tholin ΘΔ @tholin.bsky.social · 04/10/2023

New update to my (Avali) Avalon VRC world now live! t.co/CavG0Bbo6z

151

Tholin ΘΔ @tholin.bsky.social · 27/09/2023

New post up on my website about how I got to tape out my own custom ICs, what the results of that were, and using that custom silicon in a project. tholin.dev/custom_silic...

000

Tholin ΘΔ @tholin.bsky.social · 25/09/2023

This weekend, successfully revived a MCU from the GDR. The cursed staggered pins required a custom PCB. The extra pins are for an external ROM, as this is a dev version for a part that has a mask ROM. 8MHz, runs VERY hot, which is bad for a MCU, but consistent with other GDR ICs I own.

030

Tholin ΘΔ @tholin.bsky.social · 19/09/2023

Hello Blue sky! For those who don’t know me already: I build fun things in both VR and RL. Migrating here from THE OTHER PLACE. Hopefully I can just pick up where I left off.

050