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Meet Pisound - Sound Card & MIDI Interface for Raspberry Pi
Pisound is an ultra-low latency high-quality sound card and MIDI interface specially designed for Raspberry Pi pocket computers. Equipped with 192kHz 24-bit Stereo Input and Output driven by the legendary Burr-Brown chips, DIN-5 MIDI Input and Output ports, user-customizable button and bundled software tools, this little board will bring your audio projects to a whole new level!
hardware  music  linux  raspberrypi  audio  sbc 
6 weeks ago by vitriolix
“Hello, world” from scratch on a 6502 — Part 1 - YouTube
Geniet van je favoriete video's en muziek, upload originele content en deel alles met vrienden, familie en anderen op YouTube.
Ben-Eater  6502  DIY  sbc  breadboard  computer  episodes 
7 weeks ago by arnoldn
Installing 3CX (SBC) Session Border Controller
This document describes how to install and configure 3CX SBC
3cx  info  sbc 
7 weeks ago by natedoc
My Business Card Runs Linux • &> /dev/null
This is the finished product. It is a complete, minimal ARM computer running my customized Linux firmware built with Buildroot. (..)

It has a USB port in the corner. If you plug it into a computer, it boots in about 6 seconds and shows up over USB as a flash drive and a virtual serial port that you can use to log into the card's shell. The flash drive has a README file, a copy of my résumé, and some of my photography. The shell has several games and Unix classics such as fortune and rogue, a small 2048, and a small MicroPython interpreter.

All this is accomplished on a very small 8MB flash chip. The bootloader fits in 256KB, the kernel is 1.6MB, and the whole root filesystem is 2.4MB. So, there's plenty of space for the virtual flash drive. It also includes a writable home directory, on the off chance that anyone creates something they want to keep. This is also saved on the flash chip, which is properly wear leveled with UBI.

The whole thing costs under $3. (..)

After much research, I selected the F1C100s, a fairly obscure cost-optimized (read: damn cheap) part made by Allwinner [ARM9EJ-S core SoC with 32MB of embedded DDR SDRAM]; it includes both RAM and CPU in a single package. I bought these on Taobao. All the other miscellaneous components were sourced from LCSC.
electronics  cheap  linux  businesscard  sbc  cost  opensource 
december 2019 by gohai

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