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jep
New Member

Philippines
1 Posts
Posted - Oct 16 2009 :  12:12:31 AM  Show Profile  Send jep a Yahoo! Message  Reply with Quote
i'm new in constructing circuits,, what IC's should I use to have 0-60 then 60-0 displays???? please help,,

Darkthero
Apprentice

USA
51 Posts
Posted - Nov 03 2009 :  07:13:56 AM  Show Profile  Reply with Quote
Im unable to find a schematic that will only count to 60 probly because it will need to be programed. there are some 2 digit 0-99 counters
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Aaron Cake
Administrator

Canada
6718 Posts
Posted - Nov 03 2009 :  09:31:04 AM  Show Profile  Visit Aaron Cake's Homepage  Send Aaron Cake an ICQ Message  Send Aaron Cake a Yahoo! Message  Reply with Quote
You could modify the counter circuit on this website to have two digits (instructions are on the page) and then set up a system of AND gates to trigger a reset when the output of the display is showing 60, but that seems like a lot of work. Program a PIC to count to 60 and reset.
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boron
Mad Scientist

Canada
223 Posts
Posted - Nov 04 2009 :  9:51:44 PM  Show Profile  Reply with Quote
Yhep, without a micro controller this would be a lot of wiring. You'd need a bunch of 4017's and then you'd need to rig a series of AND gates like Aaron said to trigger them correctly. I've done this with two 4017's to count to 16 and even that was kinda long to do.
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