Tootfinder

⚡ Green electronics thanks to biodegradable circuit boards
#electronics

Green electronics thanks to biodegradable circuit boards
They are the "heart" of every electronic device, from laptops to electric toothbrushes: printed circuit boards, also known as PCBs. These rigid boards are covered with copper traces and soldered electronic components and are usually of a telltale green color. They are, however, not exactly environmentally friendly.

Old boards are so awesome!
#Electronics #circuits

🇺🇦 #NowPlaying on BBCRadio3's #CarolsAcrossTheCountryASeasonalJourney
arr Simmy Singh Traditional Welsh & Simmy Singh (violin & electronics):
🎵 Ar Hyd y Nos (All Through the Night)
#arrSimmySinghTraditionalWelsh #SimmySinghviolin #electronics

Done with this project, everything except for the audio port worked (not a huge issue, but annoying). Passed in CGA via the DB-9 connector, RGB via the BNC connectors and the Sony PVM was more than happy to display the signal.
#electronics #cmptr

Update on the Sony PVM-2530: probably should use RGB before diagnosing color issues (e.g. luma). I did have to get in my custom CMPTR board to do it, but everything lined up perfectly. I do need to fix the geometry a bit, but for right now I think I'll be playing a few games after work.
#electronics

☎️ Did You Know That There Are Camera-Less iPhones?
#electronics

Did You Know That There Are Camera-Less iPhones?
If you work in a nuclear power plant, you might have a weird iPhone like this.

Alright, the good news is that I've mostly corrected convergence on the Sony PVM-2530 and it looks tons better. The bad news is that I'm getting shadowing/bleeding on changes in colors which wasn't apparent due to the horrible convergence. However, it's progress. I think it's a cap issue...not sure where though.
#electronics

Remember that time I chopped down a Raspberry Pi Pico and it still worked fine? (I mean, with less GPIO pins, but still.)
#diy #maker #electronics

Why am I using a squirrel as my new logo? That's why. Obviously, squirrels and electronics go well together.
And no, I don't trick her into doing that, I was not expecting that at all 😅
#electronics #oscilloscope

Went ahead and cleaned off the workbench as it has the tendency to accumulate random electronics on it. Still need to get the computer hooked back up, but it's nice to get back to soldering a few things here soon.
#electronics #workbench

First power on of the Sony PVM-2530: major convergence issues. Fortunately I have the service manual and this should be very correctable. Still need to get the speakers cleaned up and attached to the PVM.
#electronics #crt

I just spent way too much time cutting, stripping, and straightening wires…
#maker #diy #electronics

The IF-C01COMG card came in and it works perfectly. I'll put it through its paces after work, but for now the picture is great. Easy to install and worth every penny.
#electronics #retrogaming

Hrmm, I'm having an urge to rewrite the Extron VTG-200 software and make it a bit more recent. The RS232 controls seem to be well documented...
#extron #electronics #programming

🧱 Making Printed Circuit Boards with Wild Clay
#electronics

Clay PCB Tutorial — feministhackerspaces
Clay PCB Tutorial MaKING Printed Circuit Boards with Wild Clay It is an open secret that the hardware in our...

So after some thought, I think I'm gonna break out all of the signals coming out of the CMPTR connector. Shouldn't really increase the cost of the device, and it might be useful for troubleshooting if you could inline the board so I'd have to add another DB-25 connector.
#electronics #sony

🍪 Gate-level emulation of an Intel 4004 in 4004 bytes of C
#electronics

I think this will work out, still need to fix the silkscreen and explain the settings switches somewhere on the PCB.
#electronics #kicad #sony

Welp, went ahead and broke out every signal that goes over the CMPTR connector. All of the signals go to BNC connectors except for the audio which gets a special RCA connector. There is a bank of DIP switches that pull selector signals to ground as well. Still need to get all of the signals routed, but that should be pretty straightforward.
#electronics

A quick schematic for a CMPTR breakout PCB. This really only handles RGB, but should get the job done for the CMPTR connector on the PVM-2530.
#electronics #crt #sony

🧠 Electro-optical Mott neurons made of niobium dioxide created for brain-inspired computing
https://techxplore.com/news/2025-08-electro-optical-mott-neurons-niobium.html

Electro-optical Mott neurons made of niobium dioxide created for brain-inspired computing
Over the past decades, engineers have introduced a wide range of computing systems inspired by the human brain or designed to emulate some of its functions. These include devices that artificially reproduce the behavior of brain cells (e.g., neurons), by processing and transmitting signals in the form of electrical pulses.

🍔 Thermal, Mechanical, And Material Stresses Grow With Die Stacking
https://semiengineering.com/thermal-mechanical-and-material-stresses-grow-with-die-stacking/

Thermal, Mechanical, And Material Stresses Grow With Die Stacking
More analysis and more data are needed to predict how different dies will interact in the same package.

After doing some digging on the CMPTR 25-pin interface, I think I'm gonna change the design of the CMPTR adapter. The IBM Luma pin and HSync pins kinda scream CGA (e.g. IBM 5151) so I'm gonna rip out two of the BNC connectors and run RGB CSync on one side via 2x2 connectors. Beside those will be a DB9 connector running RGB, IBM Luma, H/VSync which makes a lot more sense.
#electronics

⚡ Team develops high-speed, ultra-low-power superconductive neuron device
#electronics

Team develops high-speed, ultra-low-power superconductive neuron device
A research team has developed a neuron device that holds potential for application in large-scale, high-speed superconductive neural network circuits. The device operates at high speeds with ultra-low-power consumption and is tolerant to parameter fluctuations during circuit fabrication.

Okay, got the new version finished. The BNC connectors are for RGB Sync, and the other two BNC connectors were removed and replaced with a DB9 connector for the glory that is CGA. Kept the RCA audio port on the side of the board because audio will mostly go in directly to the PVM. Overall I'm much more satisfied with this layout and connector choice than the previous version.
#electronics

🍪 Scientists create world's first chip that combines 2D materials with conventional silicon circuitry
https://techxplore.com/news/2025-10-scientists-world-chip-combines-2d.html

Scientists create world's first chip that combines 2D materials with conventional silicon circuitry
For the first time, scientists have created a fully functional memory chip only a few atoms thick and integrated it into conventional chips. This advance could pave the way for more powerful and energy-efficient electronic devices.