please help a newbie out... Which serial library should I use if i cant give up 2 pins for serial communication? I only need TX, not RX. I cant use Serial.begin, because it sucks up 2 pins.
I am going to add an ethernet card to my arduino, and thus I am running out of pins on my little experiment.
Is there a serial library that allows the arduino to only use one pin for serial TX, and not burn another pin for RX (when RX capability is not needed?)