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What will be the approximate frequency, and how accurately do you need to measure it?
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Will the input be a 5V square wave, or would you like to use the built-in analog comparator to allow much smaller input signals?
What will be the approximate frequency, and how accurately do you need to measure it?
Will the input be a 5V square wave, or would you like to use the built-in analog comparator to allow much smaller input signals?