• 工程設計專題(進階)

角度伺服馬達(SG90)

• 講義

• • python 程式碼

  import RPi.GPIO as GPIO
  from time import sleep
  
  GPIO.setmode(GPIO.BOARD)
  GPIO.setup(11, GPIO.OUT)
  
  pwm=GPIO.PWM(11, 50)
  pwm.start(0)
  
  left = 5
  pwm.ChangeDutyCycle(left) # left -90 deg position
  sleep(2)
  middle = 7.5
  pwm.ChangeDutyCycle(middle) # middle 0 deg position
  sleep(2)
  right = 10
  pwm.ChangeDutyCycle(right) # right -90 deg position
  sleep(2)
  
  pwm.stop()
  GPIO.cleanup()

   

  • python 程式碼

  import RPi.GPIO as GPIO
  from time import sleep
  
  GPIO.setmode(GPIO.BOARD)
  GPIO.setup(11, GPIO.OUT)
  
  pwm=GPIO.PWM(11, 50)
  pwm.start(0)
  
  def setAngle(angle):
      duty = angle / 18 + 3
      GPIO.output(11, True)
      pwm.ChangeDutyCycle(duty)
      sleep(1)
      GPIO.output(11, False)
      pwm.ChangeDutyCycle(duty)
      
  setAngle(0)
  sleep(2)
  setAngle(45)
  sleep(2)
  setAngle(90)
  sleep(2)
  setAngle(135)
  sleep(2)
  setAngle(180)
  sleep(2)
  
  pwm.stop()
  GPIO.cleanup()

  參考資料

  https://www.learnrobotics.org/blog/raspberry-pi-servo-motor/