Smallest Arduino - help me find it...

Some time ago there was a post on the forums here of, what I think, is was the smallest Arduino.

This guy soldered the few components (crystal, capacitor, etc…) that were needed to run Arduino directly to the processor or maybe he used a pin header. Not sure…

I have been looking for that thread last night but not been able to find it. Anyone remembers the thread I talk about and can link me to it?

Thank you in advance!


Take a look at this:

Thank you very much!

I am not 100% sure if this was the one I had seen before, it seems close enough. I think the one I had seen here before didn’t have the icsp header and also no reset switch.

If anyone has seen other versions, similar to this one, please post!

Five page thread here:

Take a look at this:

It seems in that link the chip is running on a internal clock of 8 MHz so adding a Crystal or Ceramic Resonator 16MHz may be a good addition.

Not the one I was looking for. Thanks anyway!