Fifteen DIY coding/hacking projects won or tied as "Projects of the Month" on Cemetech in 2025: now it's time to choose the best of the best. Games, screensavers, utilities, and a calculator flamethrower await: www.cemetech.net/news/2026/3/...

New info on the upcoming TI-84 Plus Evo graphing calculator, thanks to MateoConLechuga: USB-C, 3.5MB Flash storage, a smoother font, wider graphing, and a possible change to the TI Innovator accessories making them incompatible with the TI-84 Plus CE. Discussion: www.cemetech.net/forum/viewto...

Just saw this on Lego Ideas, it's super awesome!

Eleven years after the TI-84 Plus CE, the color screen version of the immortal TI-84 Plus calculator, @ticalculators.bsky.social will likely be releasing the TI-84 Evo. Leaks point to UI upgrades mirroring Casio and HP calcs, 3x faster CPU, and rearranged buttons. www.cemetech.net/news/2026/1/...

Just made a video covering what we know so far! youtu.be/VVMBfBvjXks (Yes I artificially enlarged "TI-84 Evo" in the thumbnail. You can't read it very well on YT otherwise)

New calculator leak? 👀 ceme.tech/t20852

Our last Projects of the Month for 2025 includes an HP Prime turtle graphics port, a voxel MMO, a variety of TI-BASIC arcade-style games, a TI-Nspire CoD Zombies "demake", a train simulator, and much more. Vote to choose the last contender for Project of the Year: www.cemetech.net/news/2026/1/...

Do you like flying toasters, word games, crossword puzzles, or building operating systems for 8-bit CPUs? If so, November's Projects of the Month at Cemetech have you covered: www.cemetech.net/news/2025/12...

Really enjoyed this, go check it out!

What do shells, roguelikes, 3D Github contribution visualization, text editors, and arcade games have in common? They're all featured in our September 2025 Projects of the Month: for graphing calculators and computers: www.cemetech.net/news/2025/11...

NumWorks collège (En direct via visio de l'APMEP par l'équipe TIPLANET) Ecran 192x81 Niveau de gris, Batterie 200h, STM32 U0, charge et maj USB C

Tiles!

Pipes!

Just uploaded a video looking at the new ZGC4 calculator prototype! Go check it out :)

Your mission, should you choose to accept it: vote for your favorite Cemetech graphing calculator software project of 2024: www.cemetech.net/news/2025/1/... . You have plenty of options, including games, programming tools, math apps, and shells.

Sadly my Shannara product idea has expired, but it's not too late to support Lego Bill & Ted.

Fun numbers

2024 ended strong: Cemetechians worked on calculator, computer, and hardware projects in December 2024, from an on-calculator ez80 ASM IDE to math and 3D graphing tools to a TI-84 Plus-turned-art. See them all and vote for your favorite: www.cemetech.net/news/2025/1/...

Happy New Year!

Went for a hike today!

Been working on this project for a while and it's finally finished! Go check it out :) youtu.be/NMa8z7aW-Sg

Merry Christmas!

I recently finished documenting a project to identify handwritten digits directly on the TI-84 Plus CE. Draw digits with a mouse, and in 18 seconds, a CNN running on the ez80 CPU classifies them. Video (excuse the clickbait title): youtu.be/olcZdTRdnQg ; technical details: z80.me/blog/calcula...

I turned this broken TI-84 Plus into some kind of art! I've seen people do this with other tech online and I thought it would be fun to design something myself. More details on Cemetech: ceme.tech/p309747

It's here!

Justice Hyperdrama concert livestream was awesome! Really hope to see them live in person some day!

I've completed "Restroom Redoubt" - Day 14 - #AdventOfCode 2024! This was another fun one to visualize, especially part 2!

I've completed "Claw Contraption" - Day 13 - Advent of Code 2024 #AdventOfCode! Just some math today, I found it a lot easier than some of the previous puzzles

Finished Day 12 of #AdventOfCode on the TI-84 Plus CE calculator! Had to move the stack to a different RAM location since it wasn't handling the recursion well, but in the end I got it and the visualization looks super cool! Code on GitHub as well: github.com/TIny-Hacker/...

Got stuck on yesterday's #AdventOfCode so I took a break and worked on today's instead (I'll revisit 9 later though). Turns out the bug in my part 1 solution was just the part 2 solution which made it quite easy!

Day 8 of #AdventOfCode was a lot of fun and much faster of a solve (in both writing the program and execution) than yesterday's! Here's another accidental visualization from using VRAM for a map, but this time I didn't bother with changing the palette to something nice and just kept the default

Week 1 of #AdventOfCode 2024 on the TI-84 Plus CE done! Today put my patience to the test, I must've come up with the worst possible algorithm and it took me 7 hours and 45 minutes to run (part 2). Thankfully it worked on the first try, but I'll be a bit more wary of brute force in the future 👀

If you feel like we just posted a Projects of the Month, you're not wrong - but Cemetech's news editors were efficient with November 2024. Projects included games, math tools, a physics simulation, and even a shockingly powerful 3D renderer. November's projects: www.cemetech.net/news/2024/12...

Decided on making use of VRAM to store a map of the input for day 6 of #AdventOfCode on the TI-84 Plus CE. It ended up looking neat so I tweaked the colors a bit and ended up with a sort of visualization at the same time! Still have to do part 2, we'll see how that goes...

I've completed "Print Queue" - Day 5 - Advent of Code 2024 #AdventOfCode Today's puzzle took me a bit longer. Wasn't necessarily that difficult but I made a lot of dumb mistakes (infinite loops, too small of integers, etc) which were annoying to track down

Spotify wrapped 2024 time!

Just completed day 2 of #AdventOfCode 2024! Solving on the TI-84 Plus CE like usual, whenever I happen to have free time to do a puzzle. Probably won't keep up and my code is a big mess but solutions here: github.com/TIny-Hacker/...

Any android users who want to beta test the bluesky notification app right now, DM me.

Hmmm this seems not great

New (and still-expanding starter pack) of TI calculator hackers (former & current).

Cemetech's Minecraft 1.21+ survival server will be launching tomorrow, October 12th, at mc.cemetech.net. Come explore and build bases, cities, and machines with Cemetech! www.cemetech.net/news/2024/10...

Do you need three sprite/icon editors, an ez80 assembly IDE, Sonic 2, or OCaml on your graphing calculator? These and many other projects are in Cemetech's September Projects of the Month: www.cemetech.net/news/2024/10...

It's been a few months and my LEGO Ideas Celeste (@exokgames.bsky.social) set is getting very close to 3000 supporters! At 10K LEGO gives it a chance to become a real set, but there's less than a year left for it to get there. Please consider voting for free to help: ideas.lego.com/s/p:ac89cbf0...

Do you remember? www.youtube.com/watch?v=Gs06...

Taking advantage of the newly added video support to show off something I've been working on recently

#245,595! Thanks again to @kermmartian.z80.me for inviting me during the beta!

Saw some pretty clouds this morning!

Okay friends, AFOL, and other Lego enthusiast types! My build based on the mall scene from Bill & Ted’s Excellent Adventure is up on Lego Ideas and I need your help to get it turned into a real Lego set! It’s free to vote, and leaving a comment or sharing with friends is also VERY helpful

Did you see what Cemetech's members made in August? From a base converter to a calculator-themed arcade fighting game, sidescrollers to an icon editor, programming references to train simulation rigs, see 'em all here: www.cemetech.net/news/2024/9/...