Made some progress on prototyping a #RP2040 based #USB Audio interface. I got a PIO program to output a good looking TDM signal for 4 channels of 32-bit samples.

Now I can start prototyping the receiving end of the transaction, DMAing samples into RAM and packing them into isochronous USB packets.

#Hardware #PiPico #RaspberryPi #EmbeddedC #Audio #Microcontroller

“Receptacles should be oriented to allow the Icon on the plug to be visible during the mating process.”

Why is this Type-A receptacle upside down? Why does it have signage from both sides like if it was a reversible receptacle? 🤬

#usb
#rant

I'm delivering a talk at #WHY2025 about #USB in 7 minutes.

streaming.media.ccc.de/why2025…

There are two modern ways to capture HDMI video into a computer using OBS. Both require a video capture card.

A PCIe video capture device allows you to capture and record video and audio from a device and save it to your computer through HDMI.

Besides a PCIe capture card, you can also use a USB video capture card. A USB video capture card is more portable, but you can only use one in each USB port.

#Linux #PCIe #USB #video #capture #card #Avermedia #Elgato #Blackmagic #Decklink #Mirabox

Today I discovered a pretty cool utility for listing USB devices! 🔌

🌸 **cyme**: A modern and cross-platform lsusb!

🔥 Displays manufacturer, serial number, speed, current information (mA) and more!

🦀 Written in Rust!

⭐ GitHub: github.com/tuna-f1sh/cyme

#rustlang #lsusb #usb #devices #utility #commandline #tool #libusb

Avoiding USB-C on iPhones may get harder for Apple as Brazil considers mandate

arstechnica.com/?p=1863422

#smartphones #Policy #Brazil #iphone #apple #USB-C #Tech #USB

Avoiding USB-C on iPhones may get harder for Apple as Brazil considers mandate

Brazil joins EU and efforts from US politicians in universal charger push.

^{Ars Technica}

USB vs. the marine environment.

#USB #Corrosion #CruisingLife