Arduino+pro+micro+eagle+library: Free

She clicked the button. The Design Rule Check dialog box appeared. She set the clearance to 8 mils, the minimum for the cheap fab house she could afford. She set the width to 6 mils. She took a breath.

There it was. The symbol. The footprint. The device. She clicked on the footprint view. A ghost of a PCB—just the copper pads and the silkscreen outline of the Pro Micro. She zoomed in on pin A3. arduino+pro+micro+eagle+library

Right-click the library name and select "Use." It will turn from gray to green, indicating it is now searchable. She clicked the button