James L
@baldengineer.com
Fan of making things beep, blink, and fly. @addIohms.bsky.social video creator, KN6FGY. Oh, and Bald.
Just came across Visashot - A Python tool to create beautiful screenshots from vintage test equipment. Up to 120 instruments supported.
damien.douxchamps.net/elec/visashot/
damien.douxchamps.net/elec/visashot/
July 8, 2025 at 6:14 PM
Just came across Visashot - A Python tool to create beautiful screenshots from vintage test equipment. Up to 120 instruments supported.
damien.douxchamps.net/elec/visashot/
damien.douxchamps.net/elec/visashot/
TDK introduced a 1uF, 100V capacitance in an EIA 0603-sized case. The press release suggests it targets 48V systems (like data centers.) At 50V, the effective capacitance isn't even 200 nF.
product.tdk.com/en/search/ca...
That DC bias effect is real.
product.tdk.com/en/search/ca...
That DC bias effect is real.
July 7, 2025 at 4:54 PM
TDK introduced a 1uF, 100V capacitance in an EIA 0603-sized case. The press release suggests it targets 48V systems (like data centers.) At 50V, the effective capacitance isn't even 200 nF.
product.tdk.com/en/search/ca...
That DC bias effect is real.
product.tdk.com/en/search/ca...
That DC bias effect is real.
Before PDFs, you could order a Microfiche version of test equipment manuals to stay up-to-date.
July 7, 2025 at 4:52 PM
Before PDFs, you could order a Microfiche version of test equipment manuals to stay up-to-date.
Maker News June 2025 Update. Lots of cool stuff to check out from great makers:
Kayaks on treadmills, rogue sparks in shielded boxes, and a payment terminal that gives up root in 30 seconds
makernews.substack.com/p/maker-news...
Kayaks on treadmills, rogue sparks in shielded boxes, and a payment terminal that gives up root in 30 seconds
makernews.substack.com/p/maker-news...
July 1, 2025 at 4:10 PM
Maker News June 2025 Update. Lots of cool stuff to check out from great makers:
Kayaks on treadmills, rogue sparks in shielded boxes, and a payment terminal that gives up root in 30 seconds
makernews.substack.com/p/maker-news...
Kayaks on treadmills, rogue sparks in shielded boxes, and a payment terminal that gives up root in 30 seconds
makernews.substack.com/p/maker-news...
GuitarML on Github created an ESP32/Arduino-based Space Station Tracker. Add 2.8" LCD and watch its path around the world.
github.com/GuitarML/Spa...
github.com/GuitarML/Spa...
July 1, 2025 at 3:13 PM
GuitarML on Github created an ESP32/Arduino-based Space Station Tracker. Add 2.8" LCD and watch its path around the world.
github.com/GuitarML/Spa...
github.com/GuitarML/Spa...
CT Scan of Switch 2 (Animated GIF), including the Tegra SoC via Reddit: www.reddit.com/r/nvidia/com...
June 16, 2025 at 3:33 PM
CT Scan of Switch 2 (Animated GIF), including the Tegra SoC via Reddit: www.reddit.com/r/nvidia/com...
Found an LLM for the Commodore 64 (with 2MB REU). It isn't a chat bot, but it will tell you a story... like a 3 year old.
github.com/ytmytm/llama...
github.com/ytmytm/llama...
May 22, 2025 at 9:50 PM
Found an LLM for the Commodore 64 (with 2MB REU). It isn't a chat bot, but it will tell you a story... like a 3 year old.
github.com/ytmytm/llama...
github.com/ytmytm/llama...
What do you consider to be "high voltage"?
February 26, 2025 at 4:26 PM
What do you consider to be "high voltage"?
Electrochemical hour meter. (Saw it on Reddit). Current electrolyzes the mercury, which creates a moving dot... over time.
www.reddit.com/r/AskElectro...
www.reddit.com/r/AskElectro...
February 5, 2025 at 1:25 AM
Electrochemical hour meter. (Saw it on Reddit). Current electrolyzes the mercury, which creates a moving dot... over time.
www.reddit.com/r/AskElectro...
www.reddit.com/r/AskElectro...
I transcribed the circuit an AI model gave me.
Looks legit, doesn't it?
Stop asking AI electronics questions.
Looks legit, doesn't it?
Stop asking AI electronics questions.
February 3, 2025 at 4:51 PM
I transcribed the circuit an AI model gave me.
Looks legit, doesn't it?
Stop asking AI electronics questions.
Looks legit, doesn't it?
Stop asking AI electronics questions.
This isn’t everything I have that runs CircuitPython. It’s just what I currently have in arm’s reach.
Because, reasons.
Because, reasons.
January 22, 2025 at 2:55 AM
This isn’t everything I have that runs CircuitPython. It’s just what I currently have in arm’s reach.
Because, reasons.
Because, reasons.
Circuit Python makes 4.81 megabytes seem like an infinite space on a microcontroller.
Like the first time I used a 1.44 MB disk after years of 400 kb .
Like the first time I used a 1.44 MB disk after years of 400 kb .
January 15, 2025 at 12:59 AM
Circuit Python makes 4.81 megabytes seem like an infinite space on a microcontroller.
Like the first time I used a 1.44 MB disk after years of 400 kb .
Like the first time I used a 1.44 MB disk after years of 400 kb .
Functional design is functional.
January 2, 2025 at 4:14 AM
Functional design is functional.
I finally have this 32x32 LED matrix doing something that is almost useful. It took a FeatherS3 and some CircuitPython magic.
I’ve had these panels for years but could never make things work out.
I’ve had these panels for years but could never make things work out.
January 2, 2025 at 1:37 AM
I finally have this 32x32 LED matrix doing something that is almost useful. It took a FeatherS3 and some CircuitPython magic.
I’ve had these panels for years but could never make things work out.
I’ve had these panels for years but could never make things work out.
This footprint was fun to make. I can’t wait to try soldering it.
November 15, 2024 at 1:38 AM
This footprint was fun to make. I can’t wait to try soldering it.
Me: I sure wish KiCad had a fast way to swap the position of two parts.
Also Me:
Also Me:
November 12, 2024 at 2:28 AM
Me: I sure wish KiCad had a fast way to swap the position of two parts.
Also Me:
Also Me:
I fell into the "it would be faster to make a PCB!" trap when I needed a breakout to breadboard this DAC.
But it forced me to think about how to make a breadboard-friendly module. (In which case, the pins would go on the bottom.)
But it forced me to think about how to make a breadboard-friendly module. (In which case, the pins would go on the bottom.)
November 12, 2024 at 1:30 AM
I fell into the "it would be faster to make a PCB!" trap when I needed a breakout to breadboard this DAC.
But it forced me to think about how to make a breadboard-friendly module. (In which case, the pins would go on the bottom.)
But it forced me to think about how to make a breadboard-friendly module. (In which case, the pins would go on the bottom.)
Ironically, the battery is fine on this otherwise destroyed IIGS.
May 29, 2024 at 1:39 PM
Ironically, the battery is fine on this otherwise destroyed IIGS.
KiCad supports super- and sub-scripts...
December 20, 2023 at 5:44 PM
KiCad supports super- and sub-scripts...
October 6, 2023 at 3:31 PM
Pick your PIC with this Uno-compatible dev board (via MH Electronics): bald.ee/zwmnf7
September 20, 2023 at 11:46 PM
Pick your PIC with this Uno-compatible dev board (via MH Electronics): bald.ee/zwmnf7
At Hackaday's Supercon 2023, I'll be talking about that little Apple II project I spent over 3 years working on... I'm so stoked that I am smiling in Double-HiRes.
https://hackaday.com/2023/08/14/2023-hackaday-supercon-tickets-on-sale-now/
https://hackaday.com/2023/08/14/2023-hackaday-supercon-tickets-on-sale-now/
August 17, 2023 at 12:05 AM
At Hackaday's Supercon 2023, I'll be talking about that little Apple II project I spent over 3 years working on... I'm so stoked that I am smiling in Double-HiRes.
https://hackaday.com/2023/08/14/2023-hackaday-supercon-tickets-on-sale-now/
https://hackaday.com/2023/08/14/2023-hackaday-supercon-tickets-on-sale-now/
Made a quick badge and used OSH Park's After Dark. It came out great. But need more copper!
Next revision will have a SMD prototyping area on the back. And I'm going to change up the front layers. (Like, make the label area copper.)
Next revision will have a SMD prototyping area on the back. And I'm going to change up the front layers. (Like, make the label area copper.)
August 9, 2023 at 4:15 PM
Made a quick badge and used OSH Park's After Dark. It came out great. But need more copper!
Next revision will have a SMD prototyping area on the back. And I'm going to change up the front layers. (Like, make the label area copper.)
Next revision will have a SMD prototyping area on the back. And I'm going to change up the front layers. (Like, make the label area copper.)