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arduino IDEArduino
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40 MHz Frequency Counter with ESP32
This DIY ESP32-based counter can measure signals up to 40 MHz, it has a built-in adjustable test signal and a RF pre-amplifier so it can detect inputs as low as 25 millivolts. And as a bonus you get an internet clock for free….
Watch the Youtube video! https://youtu.be/HrxVauiBKCc
Download schematic, ESP32 code, PCB gerber files, KiCAD files:
https://drive.google.com/file/d/17RyRNbcFiIJlwBDIW_zKyuBqEQJFBbjL/view?usp=sharing
To use ESP32 in Arduino IDE you need the ESP32 Arduino boards link: (explained in the video):
https://espressif.github.io/arduino-esp32/package_esp32_index.json
40 MHz Frequency Counter with ESP32
Project images are for reference only. Actual production is based on the manufacturing files on the project page.
Please review the designer's notes (e.g., PCB thickness) and select the appropriate options.
PCBWay is not responsible
for issues caused by unsuitable parameter selections.
For more important ordering information, please refer to
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