from servo import*
from time import sleep
from machine import Pin,ADC
pot = ADC(Pin(27))     # create ADC object on ADC pin

while 1:
    angle=pot.read_u16()*180/65535 # read pot value
    angle2=180-angle
    servo1_angle(angle)
    servo2_angle(angle2)
    sleep(0.1)


main.py

diagram.json

from machine import Pin,PWM

servo1 = PWM(Pin(21), freq=50)
servo2 = PWM(Pin(20), freq=50)

min_time=500000  # 0.5ms = 500000ns  0 degree
max_time=2400000 # 2.5ms = 2500000ns 180 degree

def servo1_angle(angle):
    timing=min_time+((angle/180)*(max_time-min_time))
    servo1.duty_ns(int(timing))
    
def servo2_angle(angle):
    timing=min_time+((angle/180)*(max_time-min_time))
    servo2.duty_ns(int(timing))

