DIY Kits 1Hz-50MHz Crystal Oscillator Tester Frequency Counter Meter with Case yellow

This document describes the construction of small frequency counter with a cheap PIC microcontroller and a few seven-segment LED digits.

Automatic range switching with different gate times.

Optional addition or subtraction of a frequency offset (programmable).

Optional (configurable) power-saving mode which automatically turns.

The display off if the frequency didn't change significantly within 15seconds.

USB 5V or DC5-12V power supply can be used.

Description:

Product Category:tool

Frequency range 1 Hz ... 50 MHz
Five digits resolution (display for example x.xxxx kHz, x.xxxx MHz, or xx.xxx MHz)
Very low component count: a PIC 16F628, 5 7-segment LED displays, a 20MHz crystal and a few resistors
Measuring signal amplitude can be up to 30 v
4-40 m passive crystals can measure

Packing list:

1x DIY Kits(DIY kits, not assembled)
1x USB cable

Note:The colors deviation might differ due to different monitor settings.