I had this edgy idea to make a chunky old school Arduino thing that fits the feather form factor. USB-B port and a 3V regulator make this compatible with most featherwings, there's even the built_in LED on PIN 13 to get your blinkies starting.
Details
Can be upgraded to the Atmega328P of course, but the main goal was to have an Atmega8 DIP feather, mostly to trigger people, but the idea grew on me. Also: everyone probably has a DIP Atmega8 laying around somewhere, doing nothing - this board will give it something to do.
I've added a modification by @danjovic to the download section. It adds a reset button to the updated schematics. I still haven't come around to actually test my own board, but the first version was already verified by someone else on twitter.
Thanks to OSHPark the boards got here quickly, but I'm still waiting on some parts like the regulator, to populate the PCBs. I noticed that one of the resistors seems unnecessary, I've copied it in from the 5V design and forgot to remove that. Maybe I'll put a pull-up resistor on the reset pin in its place - although I do believe there's an internal pull-up resistor anyways, albeit weak.
Someone managed to order and build this project before I even had the chance to solder something together! Turns out there was a minor mistake in the design where two ground plane fills were separated. The V-USB firmware is reported to enumerate - yay :)
I have used the external reset to enter bootloader in my #AVeRCADE project.
You can leave a small unisolated area in the GND plane around the RESET pin, to make it possible to short them with a small screwdriver and invoke the bootloader.
davedarko
Jarrett
Stefan Lochbrunner
sjm4306
WestfW
Where does one find the latest CAD files? on github?