Here’s a no-PCB Arduino that doesn’t obscure the DIP ... allowing it to be used in a breadboard or DIP socket. You can see a walk through of the components in the clip after the break.

you can build circuits from scratch using three popular Arduino boards — Uno, Nano, and Mega — and any of the 50+ hardware ...

Above you can see [Hans’] creation next to the official Arduino USB-to-serial programmer. He used the same connection scheme, but went with an edge connector for the USB instead of using a mini ...