Water Level Detection Sensor

This project reads an analog water level sensor using pin A0 and converts the sensor output into a percentage-based water level. The program uses analogRead() for continuous sampling and applies conditional logic to transmit serial data only when significant changes are detected, reducing noise and unnecessary output. A calibration function maps raw sensor values to a 0–100% scale, with adaptive adjustment using a static variable to account for varying water conditions. Modular functions and serial communication are used to improve readability, debugging, and system reliability.