1Hz-50MHz Digital Frequency Meter Kit with PIC16F628A Crystal Tester LED Display

Please note: this is a KIT, so you'll receive the components you need to assemble and everything you need to recreate the device as shown in the image. The KIT includes easy-to-understand illustrated instructions.

REQUIRED EXPERIENCE LEVEL medium

Assembly and testing by Mectronica STORE is also available by adding quantity 20 of the KIT assembly service (search for it on the site) and adding it to the cart together with the KIT to be assembled.

The Digital Frequency Meter Kit with Crystal Tester is a compact and versatile instrument designed for precision electronic measurements, ideal for laboratories, hobbyists, amateur radio operators and educational applications.

Based on the PIC16F628A programmed microcontroller, the device allows measurement of frequencies between 1 Hz and 50 MHz , as well as testing oscillator crystals with frequencies from 4 MHz to 40 MHz .

The system uses a highly visible 5-digit LED display that automatically shows the correct measurement range in Hz, kHz or MHz , making it simple and straightforward to use.

The frequency meter also features a programming button that allows you to add or subtract an offset value from the measured frequency, a useful feature for calibration, local oscillator, and RF applications.

There is also an energy saving mode: if the detected frequency remains unchanged for about 15 seconds, the display is automatically deactivated to reduce consumption.

The kit is supplied in a complete assembly box with:

• transparent plexiglass container
• USB cable → DC plug
• electronic components

A voltage between 5V DC and 12V DC is sufficient for power supply.

Power supply not included.

Main features

• Compact digital frequency meter
• Based on PIC16F628A microcontroller
• Measures frequencies from 1 Hz to 50 MHz
• 4 MHz to 40 MHz Crystal Tester
• 5-digit LED display
• Automatic Hz/kHz/MHz switching
• Programmable frequency offset function
• Power saving mode
• Transparent plexiglass container included
• Self-assembly kit

Technical specifications

• Microcontroller: PIC16F628A programmed
• Display: 5-digit LED
• Frequency measurement range: 1 Hz ÷ 50 MHz
• Crystal Test: 4 MHz ÷ 40 MHz
• Automatic unit switching: yes
• Frequency Offset: Programmable Add/Subtract
• Energy saving: display turns off after 15 seconds without changes
• Power supply: 5 ÷ 12 V DC
• Power connection: DC plug
• Container: transparent plexiglass
• Cable included: USB → DC plug

Typical applications

• Electronics laboratory
• Oscillator and quartz testing
• Radio amateurs
• RF Measurements
• STEM educational projects
• Frequency calibration

Package contents

• Frequency meter kit to be assembled
• Plexiglass container
• USB cable → DC plug
• Electronic components