sg90

sg90.py

import RPi.GPIO as GPIO
import time

servoPIN = 2
GPIO.setmode(GPIO.BCM)
GPIO.setup(servoPIN, GPIO.OUT)

pwm = GPIO.PWM(servoPIN, 50) # GPIO 17 for PWM with 50Hz
pwm.start(0) # Initialization

try:
  pwm.ChangeDutyCycle(5) # left -90 deg position
  time.sleep(1)
  pwm.ChangeDutyCycle(7.5) # neutral position
  time.sleep(1)
  pwm.ChangeDutyCycle(10) # right +90 deg position
  time.sleep(1)

except KeyboardInterrupt:
  p.stop()
  GPIO.cleanup()