Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
02/20/06 05:24
Read: times


 		 #110313 - save with sharing HD44780s?
Responding to: ???'s previous message
>I haven't played chess in over a decade, except with my son, so >I am not "up" on the latest trends.
>
-- you can play online at ICC (www.chessclub.com) for free as a guest and right off you'll learn about the 'increment' option of time controls if you play, for example, 2 12 (2 mins + 12 secs increment (I called it bonus before)).

Since this is a one-off, how about going HD44780 for the LDCs which would take 14 pins (12 shared, 2 Vcc)(assuming you can share LCDs) plus 12 for the rotaries (4 shared, 8 Vcc). With a AT89S51 from DigiKey in 0.1" for $2.35 which supposedly has "32 Programmable I/O Lines", would I not almost be there?


List of 35 messages in thread
TopicAuthorDate
Multiplex BCD Rotary Switch Input?            01/01/70 00:00      
   Thumbwheels or ROTARY?            01/01/70 00:00      
      Rotaries            01/01/70 00:00      
   Why not            01/01/70 00:00      
      Why not leave it out?            01/01/70 00:00      
         Proposed Development            01/01/70 00:00      
            you've got choices to make ...            01/01/70 00:00      
               re choices ...            01/01/70 00:00      
                  The obvious...            01/01/70 00:00      
                     re: The Obvious            01/01/70 00:00      
                  What's the deal with the switches?            01/01/70 00:00      
                     re: switches            01/01/70 00:00      
                        What???            01/01/70 00:00      
                           re switches            01/01/70 00:00      
                              distributors only care about quantity            01/01/70 00:00      
                                 save with sharing HD44780s?            01/01/70 00:00      
                                    If you can live with the load            01/01/70 00:00      
                                       Re living with the load            01/01/70 00:00      
                                          it's still YOUR project            01/01/70 00:00      
                                             re MY project            01/01/70 00:00      
                                                not the ides, the implementation and the            01/01/70 00:00      
                                                   Over-view            01/01/70 00:00      
                                                      Maybe it's the type of switch ...            01/01/70 00:00      
                                                         Thanks guys and 'bye for now            01/01/70 00:00      
                                                            Or just start small            01/01/70 00:00      
                                                Take it for what it's worth.            01/01/70 00:00      
                                                   continuing            01/01/70 00:00      
                                                Smart            01/01/70 00:00      
                        have you considered            01/01/70 00:00      
                           That was something he DIDN'T want            01/01/70 00:00      
            Options            01/01/70 00:00      
               If I wanted to buy a chess clock            01/01/70 00:00      
                  re chess clocks            01/01/70 00:00      
                     practice mode            01/01/70 00:00      
   cd4021_cd4094 shift registers            01/01/70 00:00      

Back to Subject List