THT feather with ATMEGA8

V-USB and low component count, all through-hole technology

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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.

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.


@danjovic did a modification and added a reset button to the design

Zip Archive - 55.67 kB - 08/18/2020 at 07:32


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Andrew wrote 08/15/2020 at 04:55 point

Where does one find the latest CAD files? on github?

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davedarko wrote 08/18/2020 at 07:37 point

My latest version is on github, yes. There's also a version with a reset button done by danjovic, that's now in the download section.

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danjovic wrote 07/12/2020 at 21:06 point

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.

static inline void  bootLoaderInit(void)
    if (MCUSR == 0 || MCUCSR & (1<<EXTRF)) {
        MCUCSR = 0;

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WestfW wrote 05/08/2020 at 10:18 point

oh.  Do one with the new AVR128da28  (128k flash, 16k RAM, 24MHz)!

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deʃhipu wrote 05/06/2020 at 11:16 point

But where is the battery management?

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davedarko wrote 05/06/2020 at 11:50 point

If you can read this, you are the battery management! Should have made that pin label say NC instead

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deʃhipu wrote 05/06/2020 at 12:28 point

or it could summon batman when brought low

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