Hi Augusto, If you want something easy to work with and COTS then Agilent has some low-cost modules: www.agilent.com HFBR-1412 HFBR-2412 Check out all the variants -- I'll let you sort through them all. Best regards, Ken Pergola -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of CVT-SSS Sent: Tuesday, September 02, 2003 2:45 PM To: PICLIST@MITVMA.MIT.EDU Subject: [PIC:] Suggestions for fiber optic cable communication Hi all, What kind of source need to use to communicate two pics using a 20 mts. optic fiber cable ? Options that I have on hand to make the test: 1) A Bright LED with a photo transistor 2) IR emmisor LED and a IR Receiver Ideas are welcome, Regards, Augusto PD: Copper wires are not a good way because there are a High Power RF source very near ( 1 meter ) -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body