Convenient Arduino-like pin macros

macros.h

// super awesome Arduino-like pin macros save you from having to remember bitmasks
// code from Matthew T. Pandina's Demystifying the TLC5940 tutorial:
// URL: https://sites.google.com/site/artcfox/demystifying-the-tlc5940

#define setOutput(ddr, pin) ((ddr) |= (1<< (pin)))
#define setLow(port, pin) ((port) &= ~(1 << (pin)))
#define setHigh(port, pin) ((port) |= (1 << (pin)))
#define outputState(port, pin) ((port) & (1 << (pin)))
#define pulse(port, pin) do { \
				setHigh((port), (pin)); \
				setLow((port), (pin)); \
			} while (0)