> I have just purchased 3 of these displays and they seem excellent > value. At present all I have done is to apply power and run the self > test. Can anyone tell me what the signalling levels are for the serial > connection. I am a bit worried about using +/- 12V RS232 or even +/- > 5V. Should it be 0v and 5V ? There is nothing in the Data Sheet to > tell me. > > Thanks > > Mike > Hooked one up to a BASIC STAMP. Rather easy. Used Noninverted mode(as though you were connecting to a line driver). Comes as 1200 baud but can be set with J1&J2 to 2400,4800,9600. Set pin to high then TRIS to out first thing to prevent glitch character on reset. I paused 50mS after to let it settle after power up.