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20MHz Frequency Counter
This counter is supposed to be working with a computer or a micro-computer like the PIC16F84.
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50 MHz Frequency meter with a 16C84
This is a simple 50 MHz auto-ranging Frequency meter, developed as a course project by Simone Benvenuti and Andrea Geniola.
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AVR Frequency Counter
The counter contains only three inexpensive ICs (well, add a regulator and three transistors), and operates from 6 - 15V DC at about 25mA. The most expensive single item is the LCD display, which is an industry standard 16 x 2 dot matrix module, whic
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Countermeasures
It could measure up to 50 MHz and worked quite okay
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Countermeasures
This is another project which fullfills a need. I once built a frequency counter using plain TTL chips. That was long before the CMOS HC versions, even before LS was available.
It could measure up to 50 MHz and worked quite okay, but the TTL chips
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PC based Frequency Meter
Here is a simple technique for measuring frequencies over quite a wide frequency range and with acceptable accuracy limits using a PC.
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