Hi,
I have analog amplifier which creates sine wave with voltage level between 200mV to 1.5V. The frequency of the oscillation is between 10Hz to 500 Hz. What would be the simplest way to detect the oscillation frequency (i.e. number of rising edges per second)? I could think four different ways:ADC, Digital IO, TimerA Capture Mode or Comparator A. I think that ADC might be overblown for this application. Could comparatorA handle the signal with this frequency?
