spark/firmware — pull request #319 by geekbozu (2014-09-24 22:26:32+00:00)
Title: Fix PINMAP for BTN. Was pointing to LED4

Updated STM32_Pin_Info PIN_MAP[TOTAL_PINS] to have the proper info for the 20th Pin which has been defined as BTN.

Previously was LED4 according to the schematic and local debugging.