Simple STM32 Frequency meter from 1Hz to 30 MHz (Arduino IDE)
Why the open web links it
Builds a frequency meter using an STM32 microcontroller and Arduino IDE, suitable for hobbyists and electronics enthusiasts.
Linked by 2 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including hackaday.com, dfrobot.com.