PIC based high frequency counter

This is quite simple and handy frequency counter that is capable to count up to 150MHz frequencies. It has its own single AA battery power supply what makes it portable device. Frequency counter is based on PIC16F628A. Frequency is passed through SN74LC161A prescaler which theoretically may count much higher frequencies than tested 150MHz. Project is highly documented to get clue of any part....

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Source: Embedds.com - Tuesday, 14 February

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