Pico: measure wind speed with an anemometer
Wire a cup anemometer's reed switch to a Pico, count pulses with an interrupt, and convert pulse rate to wind speed with the manufacturer's constant.
Tag
#interrupt
2 tutorials
ESP32: timer interrupts and why loop() timing drifts
Use the ESP32's hardware timers for interrupt-driven timing, understand why millis() and delay() drift under load, and stop your blinking LED from wandering.