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

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
11/15/03 00:20
Read: times


 		 #58745 - RE: [OT} Cool clock project.
Responding to: ???'s previous message
Hi Michael, Steve, Andy and all,

The line based utility is much more accurate than a crystal oscillator. They correct their error to keep the clock accurate to less than a second a month.

Michael, The Printed Circuit Board will actually be two boards. The LED's will on a board which is perpendicular to the main board. They will be points on it so that you can tap into it for you own needs. I will try to add a ribbon cable connector so that it can have easy access.

Steve, I will add a schmitt trigger (74C14) to clean up the AC Square wave.

The software will use the 4.0 megahertz oscillator to insure the clock advances in case the there is a power failure. A battery has been incorporated to keep the clock running during power failures.

The software is will allow the user to change for 50/60 Hz.

Regards,

Charles Bannister

List of 29 messages in thread
TopicAuthorDate
[OT} Cool clock project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
      RE: [OT} Cool clock project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
      RE: [OT} Cool clock project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
   RE: On Topic Clock Project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
      RE: [OT} Cool clock project.            01/01/70 00:00      
      RE: [OT} Cool clock project.            01/01/70 00:00      
         RE: [OT} Cool clock project.            01/01/70 00:00      
            RE: [OT} Cool clock project.            01/01/70 00:00      
               RE: 50/60 Hz Auto-detect            01/01/70 00:00      
         RE: Crystal or mains timebase?            01/01/70 00:00      
            RE: Crystal or mains timebase?            01/01/70 00:00      
               RE: Crystal or mains timebase?            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
      RE: [OT} Cool clock project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
      RE: [OT} Cool clock project.            01/01/70 00:00      
         RE: [OT} Cool clock project.            01/01/70 00:00      
            RE: [OT} Cool clock project.            01/01/70 00:00      
               RE: [OT} Cool clock project.            01/01/70 00:00      
                  RE: [OT} Cool clock project.            01/01/70 00:00      
                     RE: [OT} Cool clock project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
   RE: [OT} Cool clock project.            01/01/70 00:00      
      RE: [OT} Cool clock project.            01/01/70 00:00      

Back to Subject List