from machine import Pin, PWM
import time

button = Pin(14, Pin.IN, Pin.PULL_DOWN)
led = PWM(Pin(15))
led.freq(1000)

stages = [10000, 35000, 65535]

print("MANNUAL SPACESHIP THRUSTER")

while True:
    button.value()
    if button.value() == 1:
        for points in stages:
            led.duty_u16(points)
            time.sleep(0.5)
        time.sleep(1)
        for numbers in reversed(stages):
            led.duty_u16(numbers)
            time.sleep(0.5)
    else:
        led.duty_u16(0)