- on my DIL clip, blue/white is PIC => wisp628 serial green/white is wisp628 => PIC serial As far as I can tell, "xwisp com1 tty 9600" is non-inverting by default (eg. really wants the serial jal library that van wouter wrote) You want to use "xwisp com1 tty 9600 auxi" for inverting - "hello world"