ESP32 Frequency Counter Tutorial (40 MHz Range + RF Preamp)

This video shows you how to build a ESP32-based frequency counter which 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….

0:39 Overview
0:56 Schematic: RF pre-amplifier
2:44 PCB layout
5:21 Set up Arduino IDE & program ESP32
7:25 Programming troubleshooting
8:04 Power up & test!

Download schematic, ESP32 code, PCB gerber files, KiCAD files:
https://drive.google.com/file/d/17RyRNbcFiIJlwBDIW_zKyuBqEQJFBbjL/view?usp=sharing

ESP32 Arduino boards link:
https://espressif.github.io/arduino-esp32/package_esp32_index.json

PCBWay project: https://www.pcbway.com/project/shareproject/40_MHz_Frequency_Counter_with_ESP32_a330cabb.html

Видео ESP32 Frequency Counter Tutorial (40 MHz Range + RF Preamp) канала The Design Graveyard