This is a template for an 80-pin LPC175x Cortex-M3 ARM32 embedded processor. The board is 49mm x 49mm and has 4 mounting holes arranged in a 40mm square. The mountin holes are 3.0mm (or #4) diameter. In addition, the board has the various electronics needed to connect to a serial downloader, a JTAG debugger dongle, and Maker Bus.