Dobrica Pavlinušić's random unstructured stuff

Frequency counter: Revision 3

{image: frequency-counter-pic.jpg}

Cheap frequency counter kit "1Hz-50MHz Digital LED DIY Kits Crystal Oscillator Frequency Counter Tester"

^ original design

https://www.qsl.net/dl4yhf/freq_counter/freq_counter.html

^ modifications

* A PIC based frequency counter kit - part 1:building and modifying https://www.youtube.com/watch?v=0BxpMm6SLoE
* A PIC based frequency counter kit - part 2:changing the firmware https://www.youtube.com/watch?v=8rOCmhPWLWw
* Frequency Counter Kit revisited: higher resolution and RPM mode https://www.youtube.com/watch?v=0D6EcgTQtNw&t=313s