from machine import Pin, ADC
import time

soil = ADC(26)
relay = Pin(6, Pin.OUT)
pump = Pin(16, Pin.OUT)

while True:
    value = soil.read_u16()

    # Convert ADC value to moisture percentage
    moisture = int((65535 - value) * 100 / 65535)

    print("Soil Moisture:", moisture, "%")

    if moisture < 30:
        print("SOIL DRY - ALERT!")

        relay.value(1)
        pump.value(1)

        print("PUMP ON")

    else:
        print("SOIL MOISTURE OK")

        relay.value(0)
        pump.value(0)

        print("PUMP OFF")

    time.sleep(2)