from time import sleep_ms
from servo import Servo
my_servo = Servo(pin_id=28) 
while True:
    
    for angle in range(360):
        my_servo.write(angle)
        sleep_ms(20)
    for angle in range(360, 0 , -1):
        my_servo.write(angle)
        sleep_ms(20)
    my_servo.write(angle)
    sleep_ms(2000)
    my_servo.write(360)
    sleep_ms(2000)