Hello , i have made an RS485 bus with 3 PIC's (16F877). Two PIC's are = slaves and one is the master . When i connect one of the Slaves to the = Master , then it works perfect . But the problems starts when i connect = also the other slave . I think my word that i transmit get lost = somewhere , then i receive weird things at the master .=20 Perhaps someone have had the same problem ? Tanks for helping me out .=20 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.