import machine
import time
from machine import Pin, I2C

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

# LCD configuration
LCD_ADDR = 0x27  # Adjust this based on your LCD address
LCD_WIDTH = 16   # Adjust this based on your LCD columns

# Moisture sensor configuration
moisture_sensor_pin = 26  # Adjust this based on your sensor connection
adc = machine.ADC(Pin(moisture_sensor_pin))

def read_moisture():
    # Read analog value from the soil moisture sensor
    return adc.read()

def display_lcd(message):
    # Send the message to the LCD
    i2c.writeto(LCD_ADDR, bytearray([0x80]))  # Set cursor to the beginning of the first line
    i2c.writeto(LCD_ADDR, message.encode())

def main():
    try:
        while True:
            moisture_value = read_moisture()
            moisture_percentage = (moisture_value - 100) / 900 * 100
            moisture_percentage = max(0, min(100, moisture_percentage))

            display_message = "Moisture: {:.2f}%".format(moisture_percentage)
            print(display_message)

            # Display on LCD
            display_lcd(display_message)

            # Add a delay to avoid constant readings
            time.sleep(2)

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

if __name__ == "__main__":
    main()