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| General Electronics Chat This forum is for general chat about electronics, eg: Dont know what a part does? Dont know how to read a circuit? Want to get an opinion? |
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5th October 2007, 01:30 PM
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 need help with 0-99 counter can you give me an ideal in how to make a 0-99 counter. I hope you can help me in this matter. thank you.
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5th October 2007, 01:45 PM
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| Probably the easiest way is to use a micro-controller, there's a PIC example in my tutorials, using two seven segment displays. | |
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5th October 2007, 01:56 PM
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Can you write a PIC program?, or must you use logic ic's? Where are you posting from?
__________________ Eric "Good enough is Perfect" PIC tutorials: Gramo's: www.digital-diy.net/ Bill's: www.blueroomelectronics.com/ | ||
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5th October 2007, 03:22 PM
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| Here's a three digit counter in a thread elsewhere on this site. Just don't build the third digit. http://www.electro-tech-online.com/electronic-projects-design-ideas-reviews/22569-help-down-counter.html  Last edited by blueroomelectronics; 5th October 2007 at 03:25 PM. | |
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5th October 2007, 10:05 PM
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| Note that Bill's circuit is incomplete. It needs 100 nF capacitors across the counter IC supply line (one for each 4510), the Load, A, B, C & D inputs should be connected to gnd. And, if you want it to count up, connect the UP/DN inputs to +9 Volt. The 4511 requires a Common Cathode 7 seg. LED display. The Enable input of the 4511 should be connected to gnd. CMOS inputs should not be left open.
__________________ Len | |
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6th October 2007, 02:06 AM
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| Not my circuit just found it by searching these forums. | |
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12th October 2007, 07:53 AM
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| thanks a lot
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13th October 2007, 12:53 PM
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 Easy for counter Quote:
www.maxim-ic.com U will get atleast 3 free samples from them So do the project free of    | ||
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