-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 At 08:55 AM 4/21/00 +0200, Milan Pavlica (YU7AEC) wrote: >Hi! >I would like to build ROGER BEEP (those five tones which MOTOROLA radios >generate every time whem transmit is pressed), BUT, i do not have a lot >of space in my HT radio to put it in so i would like to build it with >PIC..(For amateurs info, that i would like to put it in place for CTCSS >enc/dec unit) >I need some small PIC - i need only one input and two outputs... >Any better idea, or can you help me with choice of PIC?? >THANKS! A word to the wise, such things are not accepted well in the ham community. If you must... It really dosen't matter what pic you use, though the F84 is probably the easiest to use. What you'll want is called a ladder D-A converter, which is a few resistors connected to the output pins. To generate a tone, just output the appropriate pin combinations over and over at some fixed rate. - -- Are you an ISP? Tired of spam? www.spamwhack.com A pre-emptive strike against spam! Where's Dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9 -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 6.5.2 for non-commercial use iQA/AwUBOQCxKIFlGDz1l6VWEQLDKwCg8t89OeRx79buodnS0//JY66UvkQAoKHW 6Of95FYFctOmHtgG9HnqBlsO =bQcB -----END PGP SIGNATURE-----