Tyler Crumpton

Passed so good they did it twice!

Hackaday Supercon 2025 Call For Participation: We Want You! We’re tremendously excited to be able to announce that the Hackaday Supercon is on for 2025, and will be taking place October 31st through November 2nd in Pasadena, California. Supercon is about br…

CFP says it’ll be Oct31-Nov2, but it looks like they haven’t put anything up on the con website yet

hackaday.com/2025/05/22/h...

It’s changed a lot in the last few years, but would say all for the better!

Raspberry Pi Pico/RP2040/RP235x? If you’re trying to boot into UF2 mode (to copy over a new firmware), you’ll need to hold the BOOT_SEL button (if there is one) while plugging it in.

I watched this accidentally on loop a couple of times frustrated that it kept slipping on you! 😅 This is so neat!

I’ve got one of those here on my desk at work! I love it so much! They make a bunch of other cool ones too:

www.traintrackr.io/product/mbta8

Original German Enigma cipher machines for sale

A huge stack of 8 port Netgear switches stacked artistically on a table

Three old-school oscilloscopes for sale out of the back of a car

First time at the MIT Flea today! I’ve been meaning to make it out there for a while now, and I finally did! Lots of cool stuff and awesome people!

Panel mount USB connector, top and bottom view. Top view has two CC resistors and four pads: V, D-, D+, and G. Bottom view has two pads: CC1 and CC2

I don’t know why there are so many of these. I’d been searching for ones like that but with the CC resistors (or at least the pins broken out!), but there is always something that makes them less than ideal. These were the closest to what I wanted, but there are pads on the bottom and no THT holes.

Worked great, thank you so much! Excited to see what we get!

Same here. I’ll email you the stack trace I got, @paulstoffregen.bsky.social

Screenshot containing Case Events for Cards Against Humanity, LIc v. Space Exploration Technologies Corp., et al. Date: June 02, 2025 Type: Docket Event Description: Jury Trial Judge: Adobbati, Ricardo M Date: May 28, 2025 Type: Docket Event Description: Announcement Judge: Adobbati, Ricardo M

Looks like they might have a court date coming up in a couple of months!

I think cats like the IKEA POÄNG more than humans do, sometimes.

Amazing, thanks so much! I’ll hop on!

Hah, it sure it! That’s the first module I grabbed when getting into modular synth, and it’s what got me into both synth and CircuitPython! Also from Winterbloom (most of my rack is Winterbloom right now)

Thanks! And thanks for making it easy and fun! The thermal printed testing receipt was such a nice touch too ❤️

Partially assembled EG synth module with electronics components, solder, and a soldering iron on the desk

Schematic digram from the mki x es.edu envelope generator build and learning manual

Finally, an impulse purchase of the mki x es.EDU envelope generator by Erica Synths and Moritz Klein! I’ve needed an EG for a while, and this was it. Not just a kit to assemble, but an entire learning experience on synth design!
54-page crash course manual was easy to follow and I learned a ton.

Next, Pet Rock by Jonah Senzel! I saw this on my first trip to synthCube months back, and thought it was cute, but was sold when I saw the “blue raspberry flavored” PCB on bsky. It’s “Wordle but for rhythms”; love the whimsy & poetry of it all. Plus Jonah’s made the music for some of my fave games!

Back side of partially assembled Castor & Pollux synth module, with remaining parts scattered about

Castor & Pollux v1 (right) and v2 (left) racked in and lit up

First up, Castor and Pollux v2! I absolutely love the retro and spacey sounds that come out of this dual oscillator. It’s beautiful and wonderfully blinky on top of that, and the larger knobs on the v2 make it so much easier to tune. And as always, @thea.codes absolutely rocked the assembly guide! 🦦

A mess of patch cables plugged into a small Eurorack synth and an Aturia Keystep keyboard

Blue LED lens PCB for the Pet Rock synth module, with the text, “this board is blue raspberry flavored i promise, taste it, do it, u won’t, cmon”

Partially assembled PCB for Castor & Pollux v2 synth module by Winterbloom

Testing receipt thermal paper printout for Castor & Pollux v2 synth module by Winterbloom with calibration graphs and data

This weekend included some Eurorack synth and electronics soldering therapy! Took a trip to synthCube in Waltham to pick up a couple of module kits I had ordered online, and also put together the Castor & Pollux v2 I was able to snag from Winterbloom’s garage sale last month.

I think the Arduino Pro Micro already includes a 10k pull-up on RST, as well as some decoupling caps on the voltage regulator inputs and outputs, and around various power inputs to the MCU.

Ahh gotcha! That makes a lot of sense, thanks!

Woah, looks nice!! Are you using some fun trick to get the stretch and squish of the TileGrid? I had to go double check that `scale` was an int from the last time I messed with displayio!

Ah yep, you’d want to switch 5V with the ADC-in on that circuit to get the right behavior.

If you use increasing powers of 2 for your resistor values (1,2,4,8,etc.) though, you can use this to your advantage and be able to measure which switches are closed at the same time!

I think you’d actually get the parallel-equivalent resistance in the case of two or more pressed at the same time, right? Like if you close the 1k and the 2k that would be the equivalent of 2/3k.

2025 is the year of correct type-C CC resistor config on cheap ebay dev boards

🤞🤞🤞new year, new usb bare minimum compliance

I ordered lots for cheap from AliExpress a while back, that had the same form factor as the Pico but with USB-C and that was unfortunately kind of a mistake. They worked fine, except that they didn’t include the 5.1k CC resistors, so they don’t power on when plugged into my laptop with a USB-C cable

Woah! It’s amazing how well that still works even with so few dots!

My hope is that this will allow me to order more unassembled boards in general, since this is definitely hand-solderable, and fairly inexpensive.