import servo
from utime import sleep

sleep(0.01)

while 1:
    servo.servo1_angle(0)
    servo.servo2_angle(170)
    sleep(0.5)
    servo.servo1_angle(90)
    servo.servo2_angle(90)
    sleep(0.5)
    servo.servo1_angle(170)
    servo.servo2_angle(0)
    sleep(0.5)

main.py

diagram.json

from machine import Pin,PWM

servo1=PWM(Pin(16))
servo1.freq(50)  # 20ms period time
servo2=PWM(Pin(17))
servo2.freq(50)  # 20ms period time
min_time=500000 # 500000 ns sec = 0.5 ms
max_time=2500000 # 2500000 ns sec = 2.5 ms

def servo1_angle(angle):
    duty=((angle*(max_time-min_time))/180)+min_time
    servo1.duty_ns(int(duty))

def servo2_angle(angle):
    duty=((angle*(max_time-min_time))/180)+min_time
    servo2.duty_ns(int(duty))
