Chloe arrived the next morning. She was seventeen, with fierce eyes and a quiet, determined smile. She wore a simple black sleeve over her residual limb. Elara helped her slip the prosthetic on. The flex sensors nestled against the remaining muscles of her forearm.
If you want a custom layout (e.g., omitting the Micro-USB footprint to save space), follow these steps to build the library part: 1. Create a New Library In Eagle, go to File > New > Library Save it as My_Custom_Parts.lbr Instructables 2. Create the Footprint (Package) The Pro Micro uses two rows of 12 pins with 0.1" (2.54mm) icon and name it Place Pads tool. Place 24 pads in two columns. Horizontal spacing : 0.6 inches (15.24mm) between columns. Vertical spacing : 0.1 inches (2.54mm) between pads. Arduino Forum Add Outline tool on the arduino+pro+micro+eagle+library
Elara stared at the EAGLE layout window. The board was a beautiful, terrifying jungle of dark blue traces on a light blue background. She had spent three weeks routing this thing. Three weeks of moving vias by a single mil, of agonizing over ground planes, of whispering sweet nothings to the autorouter (which she never actually used—she was a manual-routing purist). Chloe arrived the next morning
If you want to learn, or if you have a generic clone that doesn't match the SparkFun footprint exactly, creating your own library is a valuable skill. Elara helped her slip the prosthetic on