OP: Flavio Gurielle I=B4m thinking to make an interface between a PIC18f4550 and a comercial bluetooth dongle. To change data with other bletooth device. Is this possible ??. Someone have an idea ??? I don=B4t know if is possible... but I=B4ll try this now...I will like to g= et every help as possible.... Depending upon which module and which protocol, it may be easy or it can be difficult. If you are simply trying to use it as a wireless serial cable, its fairly simple depending upon what module. Read documentation well.. Try using the module with a PC first to see that the modules do in fact work. And maybe pickup a usb BT dongle to see which modules are bad if that is the case. I know more but I don't know whether or not it will help you any unless I know what module you are using since that varies the PIC->dongle protocol. -- andrew -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist