A #webdev project is getting to a good place, starting to think about the next thing. Thinking about building some hardware for realtime audio processing with a #RaspberryPi #ComputeModule and a custom audio interface with an #RP2040

I want to do some mixing and EQ of multiple audio sources in a small package I can embed into other things. Diving into the #USB spec is a daunting task but seems like the most compatible way to send samples fast.

#ElectricalEngineering #AudioProcessing

And it finally works, after much head-scrstching,.many (many!) dry joints, a few broken wires and having to switch GPIOs because #tinyusb seemed to want to hold on to gpio1+2 despite my best efforts, my #MGT #SamCoupe USB-HID mouse adaptor prototype (based loosely on the #RP2040Mouse project) is working

#ReteoComputing #RP2040 #RaspberryPiPico

SPINC - a #DIY Automatic Battery Charger that's #OpenSource and uses an #RP2040

IEEE Spectrum wrote about it: https://spectrum.ieee.org/diy-nimh-battery-charger

PCB, CAD drawings and the software can be found on Github: https://github.com/CoretechR/SPINC

After a year hiatus because of family problems i finally released my The Seventies Board! 🥳

The board, hard and software, is fully open source, no obligation to buy something. Retro for the masses, not for the classes!

If you want to find out more, check out these links:

Github: https://github.com/bastetfurry/TheSeventiesBoard
HaD.io: https://hackaday.io/project/204447-the-seventies-board

There is currently a groupbuy going on on Forum64:
https://www.forum64.de/index.php?thread/159630-sammelbestellung-the-seventies-board-beta/

#pdp11 #z80 #retro #rp2040

My current success rate with #MechanicalKeyboard PCB soldering is currently only 2 out of 5, well 40% is a pass mark - just.

The #RaspberryPiPico #RP2040 ‘Gamma Omega TC36K’ board worked (an easy build, could probably have socketed it). 💚

One success, one failure with #SeeedStudio #Xiao BLE castellated in Forager ‘Acid’ PCB (some fiddly back pads). 🧡

Two failures with #ProMicro #nRF52840 BLE in ‘Gamma Omega Hesse’ board attempting faux-castellation💔

Just as well custom PCBs are fabricated in batches of five - waiting on spare parts to try again - #LearningByDoing or #LearningByFailing ?