Being a professional desktop programmer and having little knowledge about electronics and having set the objective for developing the autopilot for a kitplane. My only constraint so far left to tackle is to develop a data sending & receiving system. For fulfilling my objective, I need suggestions and directions from the learned ones. Please guide... Adam --------------------------------- Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist