DIY Kits 1Hz-50MHz Crystal Oscillator Frequency Counter Meter + Case

DIY Kits 1Hz-50MHz Crystal Oscillator Frequency Counter Meter + Case New Features: - This doent describes the construction of small frequency counter with a cheap microcontroller and a few seven-segment LED digits. - Frequency range 1 Hz ... 50 MHz - Five digits resolution (display for example x.xxxx kHz, x.xxxx MHz, or xx.xxx MHz) - Measuring signal amplitude can be up to 30 v - 4-40 m paive crystals can measure - Automatic range switching with different gate times - Optional addition or subtraction of a frequency offset (programmable) - Very low component count: a 16F628, 5 7-segment LED displays, a 20MHz crystal and a few s - 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 Package included: 1x DIY Kits 1x USB cable

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