Christopher Mitchell

I was there!

A Tail of Two Kitties.

A very accurate summary of my day today. #GreatestGathering #SoManyTrains

It may just be cardboard, but physical prototyping of my Class 80x train simulator at 1:1 scale has been very helpful in figuring out if I've gotten the size and layout right, not to mention reasonable for my desk: z80.me/blog/tsc-das...

At last!

Less than seven years late, Cemetech's calculator-hacking exhibits at World Maker Faire 2018 - and what the loss of the Faire in 2019 has meant for showing off DIY, making, and hacking, inside and outside the calculator community. www.cemetech.net/news/2025/7/...

In another project completed recently, I added UK-style horn controls to my burgeoning train simulator. 🔊 Thanks to my reusable CAN bus controller, it took an afternoon, mostly of soldering and crimping: z80.me/blog/tsc-hor...

I've been writing 3D graphing programs for assorted graphing calculators since at least 2003. Now, after starting a 3D grapher for the TI-84 Plus CE and then pausing for eight years (coincidentally roughly the time since @geopipe.ai was founded), I've released it: www.cemetech.net/forum/viewto...

YouTube video by Napalm Records GLORYHAMMER - On A Quest For Aberdeen (Official Lyric Video) | Napalm Records

When I next take the Caledonian Sleeper from London I'll be www.youtube.com/watch?v=4xgy.... 🚂🤘

Staff DevOps Engineer Company Description: NBCUniversal is one of the world's leading media and entertainment companies. We create world-class content, which we distribute across our portfolio of film, television, and stre...

@kermmartian.z80.me and I are hiring for a staff-level DevOps engineer! @spackpm.bsky.social expertise is particularly welcome.

Jerry did I ever tell ya I was high school buddies with the guy who made DoorsCS7? Used to go over to his house to watch Stargate on SSD and play with his sick TI-84+

Photo of an Osaris PDA showing that the "D" drive has a capacity of 978MB.

Trying to figure out why my Osaris won't read CF cards formatted by Windows, but will when formatted by my digital camera. I think it's the partition ID that's the issue that can be fixed in DISKPART with SET ID=06 (Windows uses 0E by default). Can even get my 1GB card to show up now!

Looks like meat's back on the menu, boys!

Train Simulator Controller: CAN-Connected Air Gauge, Part 2 In my ongoing quest to build a physical cab dashboard to control Train Simulator, an important set of components are the gauges that tell me what’s going on with the train. As I build the dashboard in...

My Train Simulator controller project continues as time allows. This time around, moving my CAN controller out of my air pressure gauge to allow it to fit into my dashboard, and the tribulations of learning to use lead-free solder: z80.me/blog/can-air...

What do a dithered puppy, row-major LCD graphics routines, and an update to a 29-year-old black-and-white arcade game have in common? They're all projects in Cemetech's April Projects of the Month update: www.cemetech.net/news/2025/5/...

Achievement unlocked: realized I've actually been to today's Worldle, quite a few years ago for an academic conference.

Better late than never: March 2025's hobby STEM projects on Cemetech covered the usual gamut, from games to an emulator to a MIDI player. Check them out, and vote for the best! www.cemetech.net/news/2025/5/...

Hi, thanks for reaching out. Unfortunately, jsTIfied will remain closed-source for now. Good luck with your research.

Share and enjoy: www.cemetech.net/news/2015/9/...

Notably, I've never connected it to the internet, because I'm uninterested in the "smart" features, and I've avoided various pains I've read about where new updates break things. I simply want a monitor.

I'm loving it so far. It's great for one of the main reasons I wanted it, a nearly-life-sized train simulator "windscreen". Also good for media, and with Windows' PowerToys, reasonably good for spreading ~five applications across, like my old five-monitor setup.

Not yet - but it sounds like it's only a matter of time!

Let me know if there's ever anything I can answer that isn't well-documented!

What do you do when you want to build a train dashboard, but you don't have a train to measure? You figure out how to parse an obscure 3D model format, derive the planes the buttons lie in, and build a papercraft prototype. z80.me/blog/tsc-das...

yes this is a Lego flex.

IYKYK

Okay, that works, and the RS-422 interface spits out...something. Now how do I talk to you?

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.

Big same though re: @elfprince13.mumak.app . In fact, the majority of my closest friends come from this forum, and remain my IRL (and online) friends today.

Guilty as charged, but I'm reformed.

Am I taking crazy pills?