import machine
import dht
import utime

# Define the GPIO pins
pir_sensor = machine.Pin(28, machine.Pin.IN)
dht_sensor = dht.DHT22(machine.Pin(20))
servo_pin = machine.Pin(19)
servo = machine.PWM(servo_pin)
servo.freq(50)  # Typical servo motor frequency

# Function to set the servo angle
def set_servo_angle(angle):
    duty = int((angle / 180) * 1023 + 102)  # Convert angle to duty cycle
    servo.duty_u16(duty)

while True:
    # Read PIR sensor
    if pir_sensor.value() == 1:
        print("Motion detected!")
        
        # Read DHT22 sensor
        try:
            dht_sensor.measure()
            temperature = dht_sensor.temperature()
            humidity = dht_sensor.humidity()
            
            print("Temperature: {}°C".format(temperature))
            print("Humidity: {}%".format(humidity))
            
            # Control the servo based on humidity
            if humidity < 60:
                print("Humidity is below 40%, turning on the servo motor.")
                set_servo_angle(90)  # Example angle to turn on the servo motor
            else:
                print("Humidity is above 40%, turning off the servo motor.")
                set_servo_angle(0)  # Example angle to turn off the servo motor
            
        except OSError as e:
            print("Failed to read DHT22 sensor.")
    
    else:
        print("No motion")
        set_servo_angle(0)  # Turn off the servo motor when no motion is detected
    
    utime.sleep(2)  # Wait for 2 seconds before checking again