Arduino+pro+micro+eagle+library

The pad for pin A3 was overlapping the pad for the adjacent GND pin by 0.2 millimeters. Two-tenths of a millimeter. A single mil under eight. In the schematic, they were separate nets. In the physical world, when the board was fabricated, the copper from A3 and GND were almost touching. The fab house’s etching process, with its tiny tolerances, had left a microscopic copper hair bridging the two.

Her kingdom was EAGLE. Not the bird, but the from Autodesk. For six years, Elara had worshipped at its altar. She knew its quirks: the way it would sometimes lock up if you looked at it wrong, the arcane ritual of creating a new library part, the silent judgment of a Design Rule Check that spat out ten errors you swore weren't there. arduino+pro+micro+eagle+library

, the official SparkFun libraries are the most reliable source. SparkFun Eagle Libraries : The Pro Micro footprint is located in the SparkFun-Boards.lbr file on GitHub. Official Arduino Site The pad for pin A3 was overlapping the