MShieh
@mshieh.bsky.social
My interests are Signal Integrity, RF PCB Design, and Biomedical Electronics.
I assume this is addressing the topic of mode conversion.
November 2, 2025 at 10:17 PM
I assume this is addressing the topic of mode conversion.
Solder mask layer as well
August 29, 2025 at 2:38 AM
Solder mask layer as well
Yes. Make sure to double check that the pinout/wiring is correct
June 11, 2025 at 4:52 PM
Yes. Make sure to double check that the pinout/wiring is correct
I am not sure about the pin spacing but it's probably a variant of Wago's PCB terminal block series.
www.digikey.com/en/products/...
www.digikey.com/en/products/...
2060-452/998-404 | DigiKey Electronics
Order today, ships today. 2060-452/998-404 – 2 Position Wire to Board Terminal Block Horizontal with Board 0.157" (4.00mm) Surface Mount from WAGO Corporation. Pricing and Availability on millions of electronic components from Digi-Key Electronics.
www.digikey.com
May 19, 2025 at 2:48 PM
I am not sure about the pin spacing but it's probably a variant of Wago's PCB terminal block series.
www.digikey.com/en/products/...
www.digikey.com/en/products/...
Followed by that next moment in the middle of the night when one is trying to sleep and they suddenly ask themselves "Did I forget to repour my ground plane?"
April 26, 2025 at 6:23 PM
Followed by that next moment in the middle of the night when one is trying to sleep and they suddenly ask themselves "Did I forget to repour my ground plane?"
The connector looks like one of those switch types from Murata. www.murata.com/en-us/produc...
Microwave Coaxial Connectors with Switch | Murata Manufacturing Co., Ltd.
Murata's Products. - Microwave Coaxial Connectors with Switch
www.murata.com
April 17, 2025 at 7:44 PM
The connector looks like one of those switch types from Murata. www.murata.com/en-us/produc...
Those are likely feed through capacitors (3 terminal capacitors). article.murata.com/en-us/articl...
Noise Countermeasure using 3-Terminal Capacitors with Through Connection | Murata Manufacturing Articles
Noise-control techniques are becoming increasingly important due to high-speed operation of ICs and electrification of automobiles. This application note introduces examples of using the 3-terminal ca...
article.murata.com
April 2, 2025 at 8:08 PM
Those are likely feed through capacitors (3 terminal capacitors). article.murata.com/en-us/articl...
Is the converter a TPS63070 or similar variant?
April 2, 2025 at 6:17 PM
Is the converter a TPS63070 or similar variant?
Interesting. I would assume, at least for professional equipment, the manufacturer would rather the user buy their 4-port model or switch matrix than just have the ability to easily use software on a lower tier model.
February 4, 2025 at 10:55 PM
Interesting. I would assume, at least for professional equipment, the manufacturer would rather the user buy their 4-port model or switch matrix than just have the ability to easily use software on a lower tier model.
Oof. Hopefully that clock wasn't expensive.
January 28, 2025 at 5:01 PM
Oof. Hopefully that clock wasn't expensive.
Many years ago I started soldering using these kits: theelectronicgoldmine.com/collections/...
Learn to Solder Kits
Explore a treasure trove of rare electronic circuits, robot kits, LEDs, and more. Explore a vast collection of components including transformers, relays, power supplies, and capacitors—all at discount...
theelectronicgoldmine.com
January 28, 2025 at 4:52 PM
Many years ago I started soldering using these kits: theelectronicgoldmine.com/collections/...
Grasping at straws here but maybe try putting a load on it and see if the output voltage becomes 5v. Some regulators need a minimum load to correctly output the set voltage.
January 28, 2025 at 4:43 PM
Grasping at straws here but maybe try putting a load on it and see if the output voltage becomes 5v. Some regulators need a minimum load to correctly output the set voltage.
Yes. It's good enough to be a substitute for a press fit implementation.
January 13, 2025 at 1:08 PM
Yes. It's good enough to be a substitute for a press fit implementation.
Unfortunately, yes. www.digikey.com/en/news/pres...
DigiKey Unveils Updated Logo and Brand
DigiKey today unveiled an update to its brand system including a refreshed logo, updated color palette and typeface, tagline, simplified name and updated brand voice.
www.digikey.com
January 13, 2025 at 3:25 AM
Unfortunately, yes. www.digikey.com/en/news/pres...
One way of dealing with the alignment issue of soldering headers - if you have control over the PCB design - is to make the holes offset from one another such that the pins of the header will be snug against their respective through hole pads.
January 13, 2025 at 3:14 AM
One way of dealing with the alignment issue of soldering headers - if you have control over the PCB design - is to make the holes offset from one another such that the pins of the header will be snug against their respective through hole pads.
Thank you. Yes, I designed the PCBs myself. They were made by OSHPark.
December 23, 2024 at 12:18 AM
Thank you. Yes, I designed the PCBs myself. They were made by OSHPark.
No problem. Hopefully you'll be able fix it without much hassle
December 23, 2024 at 12:17 AM
No problem. Hopefully you'll be able fix it without much hassle
My initial approach would be Physical integrity of the USB Connector -> Power rails -> Clock sources -> USB Controller
December 22, 2024 at 10:09 PM
My initial approach would be Physical integrity of the USB Connector -> Power rails -> Clock sources -> USB Controller
Exactly. The circuitry was limited to the center of the flexible printed circuit board. The rest of the board was void of any parts except for some thin meandering traces to act as a make-shift deformation sensor.
December 17, 2024 at 1:37 AM
Exactly. The circuitry was limited to the center of the flexible printed circuit board. The rest of the board was void of any parts except for some thin meandering traces to act as a make-shift deformation sensor.
For the prototype, I remember cutting the tennis ball in half and then making a circular flexible printed circuit board whose circumference extended up to the outside edge of the ball. The ball is just glued been together. Soccer ball may be harder because it still has to be air tight.
December 17, 2024 at 1:21 AM
For the prototype, I remember cutting the tennis ball in half and then making a circular flexible printed circuit board whose circumference extended up to the outside edge of the ball. The ball is just glued been together. Soccer ball may be harder because it still has to be air tight.
I had a similar idea in college but it turned out to be a dud due to the amount of deformation the ball undergoes when it is in play. The battery is the biggest problem. I remember my prototype efforts were cut short when the battery ignited.
December 17, 2024 at 1:03 AM
I had a similar idea in college but it turned out to be a dud due to the amount of deformation the ball undergoes when it is in play. The battery is the biggest problem. I remember my prototype efforts were cut short when the battery ignited.