Servo motor control with Raspberry Pi

Most of the following articles are as they are. Although it is mentioned in the article, I feel that incorrect information is scattered, so I will post it here in the sense that it worked.

http://bufferoverruns.blogspot.jp/2016/08/raspberry-pisg-90.html

Originally I used a library called ServoBlaster as below, but due to the influence of the Linux kernel change, it became completely unresponsive and I was looking for an alternative (neither jessie nor stretch worked).

http://qiita.com/lumbermill/items/218944f816bdb0483e3c

So the program is as follows.

import time
import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BCM)

gp_out = 4
GPIO.setup(gp_out, GPIO.OUT)
servo = GPIO.PWM(gp_out, 50) 

servo.start(0.0)

for i in range(10):
    servo.ChangeDutyCycle(2.5)
    time.sleep(0.5)

    servo.ChangeDutyCycle(12.0)
    time.sleep(0.5)

GPIO.cleanup()

Reference: Servo control with Arduino

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