Yes, I have not read it right. You have enough lines to use a more conventional approach. ----- Original Message ----- From: "Pedro Drummond" To: Sent: Monday, February 09, 2004 8:32 PM Subject: Re: [PIC:] multiplex 7seg LED with drivers > Vlad, have you seen the multiplexing scheme that MAX6950 does ? > 8 seven-segment displays with only 9 lines. > Clever design, and maybe just what you need. > > > ----- Original Message ----- > From: "Vlad" > To: > Sent: Monday, February 09, 2004 5:46 PM > Subject: [PIC:] multiplex 7seg LED with drivers > > > > Hello folks, > > > > I'm in the process of designing a toy circuit to keep track of life > > counters for various games. It should support 3 players. Each player > > will have two 7 segment LED displays that will display a number between > > 0-99, and also 2 switch buttons that will be used to increase and > > decrease the number displayed on these LED displays. > > > > I have a handful of 16f84 PIC's and currently learning how to program > > them. With only a limited number of input/output pins on this chip > > (13 I believe) what would be a good way to allocate these pins for the > > switch buttons and displays? > > > > I have read various articles in the Usenet archives which suggest > > multiplexing displays, this requires 7 pins for each segment and 1 > > pin for every other display. I think this will eat up in to all my > > pins though. Can I use the same multiplexing technique with a single > > display/driver chip? Any suggestions? Also any thoughts on the switches? > > > > This is my first electronics project and PIC programming project > > (ambitious, yes) > > > > Thanks > > -v > > > > -- > > 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 -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body