from machine import PWM ,Pin
import utime
pwm = PWM(Pin(4), freq=50, duty=0)

def servo(servo, angle):
    pwm.duty(int(((angle)/180 *2 + 0.5) / 20 * 1023))

def moving(position):
    servo(pwm, position)
    utime.sleep(0.2)
    print("angle : ", position)


stepper = Pin(23, Pin.OUT)
direction = Pin(22, Pin.OUT)
direction.value(1)
ctr = 0
while True:
            stepper.on()
            utime.sleep(0.001)
            stepper.off()
            utime.sleep(0.5)
            moving(ctr)
            ctr = (ctr + 10) % 180