from machine import Pin, ADC, I2C
from pico_i2c_lcd.py import I2cLcd
import time

# I2C Configuration
i2c = I2C(0, scl=Pin(9), sda=Pin(8), freq=400000)

# LCD Configuration
lcd = I2cLcd(i2c, 0x27, 2, 16)  # Set the I2C address and LCD dimensions

# Moisture sensor configuration
moisture_sensor_pin = 26
adc = ADC(Pin(moisture_sensor_pin))

def read_moisture():
    moisture_value = adc.read()
    moisture_percentage = (moisture_value - 100) / 900 * 100
    moisture_percentage = max(0, min(100, moisture_percentage))
    return moisture_percentage

def display_moisture(moisture):
    lcd.move_to(0, 0)
    lcd.putstr("Moisture: {:.2f}%".format(moisture))

def main():
    try:
        while True:
            moisture_level = read_moisture()
            display_moisture(moisture_level)
            time.sleep(2)

    except KeyboardInterrupt:
        print("Program terminated by user.")

if __name__ == "__main__":
    main()