Hi all, I am working in the construction of a microcontroller module based in PIC 16C84 or Micromint PICStic, with RS-485 (75176) interface driver. Y need a net RS-485 of several modules. Could any help me, in the source code of the RS-485 driver for the Net, in Microchip assembler or PBASIC compiler ?. The PC Host work with Visual BASIC Windows 3.0 professional. Many thank for the help. Prof, Eugenio Martin Cuenca Dpto. de Biologia Animal Facultad de Ciencias Universidad de Granada 18071 - Granada - Spain