I love tiny electronic gizmos! I have a special place in my heart for the Arduino UNO, which taught me some of the basics about electronics.
But I feel like the hardware design is lacking a certain... elegance. So I decided, for fun, to re-design it into a smaller package.
You can see pictures below:
I used the following excellent resources:
The finished product (soldered by hand, not with a pick-n-place) works great! It has LED's for Tx, Rx, pin 13, and an FTDI chip which makes programming about as simple as it gets. Plug it in, fire up the Arduino IDE, and you are off to the races!
In order to save space, I did not include all of the pins that you can reach on the UNO, so I may go back and add a few in the future. I also may explore the following:
So there is a lot left to do. Endless possibilities and all that.