from machine import Pin, PWM
from time import sleep

# Servo motor setup on GPIO 10
servo = PWM(Pin(10))
servo.freq(50)  # Set frequency to 50Hz (important for servo control)

# PIR Sensor setup on GPIO 27
pir = Pin(27, Pin.IN)

# Function to set servo position (0° to 180°)
def set_servo_angle(angle):
    min_duty = 2000   # Approx. 0° position
    max_duty = 8000   # Approx. 180° position
    duty = min_duty + (angle / 180) * (max_duty - min_duty)
    servo.duty_u16(int(duty))

while True:
    if pir.value() == 1:  # Motion detected
        print("Motion detected! Gate opening...")
        
        # Move servo to 90° (Halfway open)
        set_servo_angle(90)
        sleep(1)

        print("Welcome to Party")
        sleep(5)  # Keep gate open for 10 seconds

    else:  # No motion detected
        print("No motion detected. Gate closing...")
        
        print("Sorry, No permission")
        sleep(5)  # Delay before checking again

        # Move servo back to 0° (Closed)
        set_servo_angle(0)
        sleep(1)

    sleep(1)  # Check motion every second