We have only one UART, we use only one UART, so it's pointless to
do pin mapping calculations at runtime.
Binary size down by 268 bytes:
SIZES ARM... lpc1114
FLASH : 1724 bytes 6%
RAM : 156 bytes 4%
EEPROM : 0 bytes 0%
Pretty complex, this MBED system, it requires no less than
24 additional files. This will be fleshd out before too long.
SIZES ARM... lpc1114
FLASH : 5956 bytes 19%
RAM : 176 bytes 5%
EEPROM : 0 bytes 0%