V-USB and low component count, all through-hole technology 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.
THT feather with ATMEGA8 | reset mod by @danjovic
2020-08-18 09:35:45
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.
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.
THT feather with ATMEGA8 | Boards are in and a small surprise
2020-05-24 22:16:50
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 :)
THT feather with ATMEGA8 | Boards are in and a small surprise
2020-05-24 22:16:50
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 :)
