John Kelley
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johnhedge.bsky.social
John Kelley
@johnhedge.bsky.social
35 followers 53 following 26 posts
Father, maker, reverse engineer. Embedded veteran.
Doing stealthy startup things.
Posts Replies Media Videos
Reposted by John Kelley
bradanlane.bsky.social
I have been finding so many uses for my PCB Probe Jig. I thought I'd use it once in a while but it's been on my bench full time for the past week.

I gave a quick demo on @adafruit.com Show&Tell this evening 🤩

Here is a link to my full writeup ...

gitlab.com/bradanlane/m...
June 5, 2025 at 1:14 AM
Reposted by John Kelley
hackernewsrobot.bsky.social
Booting the RP2350 from UART
Booting the RP2350 from UART - pfister.dev blog
03.05.2025
pfister.dev
May 12, 2025 at 12:01 AM
Reposted by John Kelley
accelerationc.bsky.social
If SDLs need costly equipment and advanced expertise, can they be democratized?

A new #researchpaper explores 14 open-source hardware and software tools designed to lower barriers to entry.

Learn more: chemrxiv.org/engage/api-g...
March 7, 2025 at 8:07 PM
johnhedge.bsky.social
If you’re using MicroPython and are trying to determine if the RPi2040’s builtin USB CDC connection is active, this solution worked for me forum.micropython.org/viewtopic.ph...
rpi pico: How to detect that sys.stdout is connected - MicroPython Forum (Archive)
forum.micropython.org
January 14, 2025 at 10:38 PM
Reposted by John Kelley
bradanlane.bsky.social
This one KiCad 9 feature alone will save me buckets of time!
craftyjon.com Jon Evans @craftyjon.com · Dec 4
Multi-track drifting, er, dragging coming to KiCad 9! Video and code courtesy of Tom W :)
December 5, 2024 at 12:40 PM
Reposted by John Kelley
thisguynamedjoe.bsky.social
Beware the magic smoke.
The image shows a printed circuit board (PCB) with a humorous text printed on it. The text reads: "Every machine is a smoke machine if you operate it wrong enough." The PCB has visible circuit traces, connection points, and what appears to be the layout for a 7-segment digital display. The phrase is a witty commentary on the potential for catastrophic failure in electronics or machinery if misused, suggesting that improper operation can lead to overheating or burning, often resulting in smoke. This playful touch adds personality to the PCB design, which might belong to a hobbyist or a quirky project.
December 6, 2024 at 12:30 AM
Reposted by John Kelley
craftyjon.com
Multi-track drifting, er, dragging coming to KiCad 9! Video and code courtesy of Tom W :)
December 4, 2024 at 10:47 PM
johnhedge.bsky.social
Yup
joshtpm.bsky.social Josh Marshall @joshtpm.bsky.social · Dec 2
I said why I was fine with Biden’s pardon. Reaction among highly engaged Dems seems overwhelmingly supportive. This tweet, I think, helps explain why. The pardon taps into the almost unfathomably deep ocean of “fuck you” Dems are feeling toward the gatekeepers of political discourse in the country.
December 2, 2024 at 11:47 PM
Reposted by John Kelley
ingekherrmann.bsky.social
Super congrats Oscar! Seamless tissue fusion by robotic soldering. Amazing collaboration with the fantastic surgeons from LiskaLab and the amazing Romain Quidant.
doi.org/10.1002/advs...
Robotic Laser Tissue Soldering for Atraumatic Soft Tissue Fusion Guided by Fluorescent Nanothermometry
Minimally invasive techniques like endoscopic and robotic surgery reduce trauma and speed recovery, yet soft tissue suturing remains challenging. Laser tissue soldering offers atraumatic, suture-free...
doi.org
November 21, 2024 at 5:44 PM
Reposted by John Kelley
nataliethenerd.com
Signal booooost! Board scans to help u fix your Game Boy

github.com/nataliethene...
GitHub - nataliethenerd/boardscans: a collection of my board scans, I've used to reverse engineer stuff. Mostly game boy and nintendo related.
a collection of my board scans, I've used to reverse engineer stuff. Mostly game boy and nintendo related. - nataliethenerd/boardscans
github.com
October 21, 2024 at 10:54 AM
Reposted by John Kelley
weaselproof.bsky.social
Just made this
The classic Twitter Failwhale, updated for bluesky. Butterflies shaped like Bluesky icons carry a cartoon whale through a partially cloudy blue sky, holding him aloft with a net under his body
November 14, 2024 at 6:41 PM
Reposted by John Kelley
iiotenki.bsky.social
I'm always bad at remembering to push the handful of non-loc translations I've done in recent years, but since backwards compatibility is on people's minds again, this autobiographical piece on the creation of the PS2's BC features is genuinely still one of my favorite things I've ever worked on.
The Story of the PS2’s Backwards Compatibility From the Engineer Who Built It
As the PS2 turns 20 in Japan, a look back on its PS1 backwards compatibility from the eyes of the former Sony engineer responsible for it.
freelansations.medium.com
November 13, 2024 at 2:45 AM
johnhedge.bsky.social
Hey @nataliethenerd.bsky.social I’m intrigued by the PSP MemoryStick flex that you posted last month. Can you tell me what chip you used in the design and / or what it was salvaged from?
October 29, 2024 at 10:53 PM
johnhedge.bsky.social
List 5 famous people you've met, but one is a lie.

Steve Jobs
Sandra Bullock
Steve Ballmer
John Carmack
BT
neilhimself.neilgaiman.com Neil Gaiman @neilhimself.neilgaiman.com · Nov 26
List 5 famous people you've met, but one is a lie. (Dr Who edition)

Jon Pertwee
Miriam Margolies
Russell T Davies
Peter Davison
Peter Capaldi
richardkadrey.bsky.social Richard Kadrey @richardkadrey.bsky.social · Nov 26
List 5 famous people you’ve met, but one is a lie.
 
Alice Cooper
Sonny Bono
Stiv Bators
Nina Hartley
Frank Oppenheimer
November 29, 2023 at 5:14 PM
Reposted by John Kelley
ninametz.bsky.social
Along with Jon Stewart and Apple having disagreements over which topics could be covered on his show (leading to the show's cancelation) this should shape how we think about Apple TV+ as a media studio
variety.com/2023/film/ne...
Who censored Robert De Niro? The “Killers of the Flower Moon” actor was gearing up to slam Donald Trump at Monday’s Gotham Awards, but when he took the stage he discovered that the speech he planned to give had been altered at the behest of Apple, the film’s producer. The company was responding to feedback from the filmmaking team that wanted the actor’s remarks to be centered on the movie, according to a source. The actor said he had not been informed of the changes, which took out any mention of the former president. De Niro, who was on hand to present “Killers of the Flower Moon” with the Gotham Historical Icon and Creator Tribute, criticized the awards show and Apple. “I don’t feel like thanking them at all for what they did,” he said. “How dare they do that, actually.”
November 28, 2023 at 9:55 PM