16F84 Frequency counter
Monday, February 6th, 2006 In elektronika.lt and in original pages at sprut.de there is placed simple frequency counter schematics. It consists only from Microchip PIC 16F84 cpu and LCD text module. Author states that this counter is capable metering frequencies from 400Hz to 50MHz. I used faster, 20MHz version of 16F84A-20I/P, and it managed to count 80MHz oscillator output.
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