The serial.write() function currently (pre 1.0) does not define if it blocks or not.
Arduino is (currently) a single-threaded microcontroller with no operating system. "blocking" is not even defined in those circumstances!
The serial.write() function currently (pre 1.0) does not define if it blocks or not.
Arduino is (currently) a single-threaded microcontroller with no operating system. "blocking" is not even defined in those circumstances!