Sergio, look up microchip AN611, this may help you to get started. if you have a microchip CDROM then browse the application notes, you have many choices as to how to achieve your goals and your question can only properly be answered by yourself after you do some relavent research. regards, Graham sergio zweedijk wrote: > > HI > I WOUL LIKE TO KNOW HOW TO COMUNICATE TO A PIC (16C71) FROM A VISUAL BASIC > APPLICATION THROUGH AN MSCOMM OBJECT. IF I WANT TO SEND A BYTE (80h) WHAT DO > I HAVE TO WRITE IN MY MSCOMM.OUTPUT STRING? > THE INPUT MODE PROPERTY IS BINARY OR TEXT? > THANKS > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com -- Steam engines may be out of fashion, but when you consider that an internal combustion engine would require recovery of waste heat by transfer just before top dead centre then fashion becomes rather redundant, USE STRATIFIED HEAT EXCHANGERS ! and external combustion. You heard it first from: Graham Daniel, managing director of Electronic Product Enhancements. Phone NZ 04 387 4347, Fax NZ 04 3874348, Cellular NZ 021 954 196.