from machine import Pin, PWM
import utime

MID = 1500000
MIN = 1000000
MAX = 2000000

#motor1 = Pin(25, Pin.OUT)
pwm = PWM(Pin(15))
pwm.freq(50)
pwm.duty_ns(MID)

pwm2 = PWM(Pin(14))
pwm2.freq(50)
pwm2.duty_ns(MID)


while 1:
    pwm.duty_ns(MIN)
    pwm2.duty_ns(MAX)
    utime.sleep(1)
    pwm.duty_ns(MID)
    pwm2.duty_ns(MID)
    utime.sleep(1)
    pwm.duty_ns(MAX)
    pwm.duty_ns(MIN)
    utime.sleep(1)