Accurate ( well fairly :p )Low frequency counter

[medelec35]

Frequency range approx 0 - 8KHz (only for an i/p of approx 200 mV - 1.5V
at 6000Hz display is within 10Hz
If using 1.6V or above then max recommended frequency is 4KHz.
Testing with real hardware, Lower frequencies are more accurate. At the mid end e.g 4KHz display shows 3998 Hz
Just press Red key to pause display.

Freq_Counter.jpg (40.19 KiB) Viewed 3862 times

This is fairly basic as I developed frequency counter to test one of my projects.
Note: I/p is between 0V and I1 (RA0)

[Benj]

Great project Medelec, thanks for sharing.

I will have a better look and a play around with this when I get some free time.