50 MHz frequency counter



50 MHz frequency counter

This project is nice and small frequency counter that reads
frequency from 1 Hz to 50 MHz that I have modified from original designed by Weeder Technologies . I have designed new PCB to fit with 16X1 LCD and change source code for compatible with new small PCB

Specifications


- Auto-ranging with floating decimal point.
- Up to 7 digits displayed on 1X16 LCD.
- Auto-adjusting gate speed (0.1 sec to 1 sec).
- Microcontroller-based circuitry provides for simplicity, ease of assembly, and highly stable readout.
- Sensitivity approximately 100 mV RMS (100 Hz to 2 MHz), 800 mV RMS @ 50 MHz.
- Input overload protected.







Picture 1. Schematic






Picture 2. PCB














Download source code 
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