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ATMega8 Frequency Meter
Posted by admin on November 21st, 2009
Sylvain Bissonnette writes:
This is a simple project. The Frequency is passing through an op-amp to convert it in a square wave. The ouput of the op-amp is feeding the 3*8 bits counter (24 bits) who can accumulate at a maximum of 16777216 count. The maximum frequency you can measure without changing the time base of one second is 16.777216 Mhz. The ATMega8 have 3 functions: enable the counter gate at each second, read his value and display it on the LCD.
ATMega8 Frequency Meter – [Link]
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November 22nd, 2009 at 2:34 am
That won’t work if there are low-frequency fluctuations or noise or high-frequency harmonics that cause multiple zero crossings per cycle.