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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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Thread Tools | Display Modes |
12th July 2004, 05:58 AM
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frequency counter
can anyone tell me how to build a frequency counter using a LCD digit counter?...thank you
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13th July 2004, 12:20 AM
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Maxim makes a counter/display chip called ICM7224 which will drive 4 1/2 digits of LCD by itself, or if you connect two or more chips together ("cascade") you can get more digits. Here's a link for the ICM7224 datasheet: http://pdfserv.maxim-ic.com/en/ds/ICM7224-ICM7225.pdf This chip can count up to 25MHz. You'll also need a timebase circuit and a display, but that's about it. JB
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13th July 2004, 12:52 AM
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counter
thanks for the link.....i already have a kit that i built using a 7224 chip....what i was wanting to know is what will it take to make this counter into a freq counter...thank you
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3rd August 2004, 08:57 PM
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well this lcd digit counter you want to modify. be more specific about it. cant tell you how to mod it without more specifics
__________________
Reality is an illusion. |
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4th August 2004, 12:18 AM
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frequency counter
what i have is a kit by diy kits...kit # 36 http://www.a1parts.com/newkits/ and i'd like to know if there is any way to convert this over to a frequency counter....according to the data sheet it is possible..but i'm a newbie to electronics and have very minimal knowledge ....i need it count go from 0-30 khz...i would apreciate any help you could give ...thank you
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