PINOUT

Arduino IDE libs

полавок, уровень воды

https://www.instructables.com/PP-Float-Switch-Tutorial/

PlatformIO project guide

Run like:

$ platformio run

Config guide: https://docs.platformio.org/en/latest/projectconf/index.html

CLion project guide

https://blog.jetbrains.com/clion/2020/08/arduino-from-hobby-to-prof-p1/

To re-init project run in CLion: Tools -> PlatformIO -> Re-Init