UNO Shield / Nano Shield for NANO 3.0 and UNO R3 duemilanove Expansion board

This is a breakout/expansion shield for the Arduino Nano, matching the physical footprint of the classic Arduino Duemilanove so the Nano can sit in a familiar Uno/Duemilanove-shaped board layout instead of its own tiny native form factor. It’s built to make Nano-based projects easier to breadboard, wire, and expand.

The shield offers several different power input options, giving flexibility in how the Nano-based project is powered depending on the build. Each pinout position also breaks out dedicated 5V and GND pins, so external modules and sensors can be powered directly from nearby headers without running extra wires back to the Nano itself.

Features:
1. Breakout/expansion shield for Arduino Nano
2. Matches Arduino Duemilanove/Uno R3 footprint
3. Multiple power input options
4. 5V and GND pins broken out at each pinout position
5. Simplifies wiring for Nano-based projects