• OpenMV VSCode 扩展发布了,在插件市场直接搜索OpenMV就可以安装
  • 如果有产品硬件故障问题,比如无法开机,论坛很难解决。可以直接找售后维修
  • 发帖子之前,请确认看过所有的视频教程,https://singtown.com/learn/ 和所有的上手教程http://book.openmv.cc/
  • 每一个新的提问,单独发一个新帖子
  • 帖子需要目的,你要做什么?
  • 如果涉及代码,需要报错提示全部代码文本,请注意不要贴代码图片
  • 必看:玩转星瞳论坛了解一下图片上传,代码格式等问题。
  • 如何修改下列代码将openmv数据传输到arduino板上再控制小车循迹运动?



    • ···
      THRESHOLD = (35, 9, -24, 32, -20, 7) # Grayscale threshold for dark things...
      import sensor, image, time
      from pyb import LED
      import car
      from pid import PID
      rho_pid = PID(p=0.4, i=0)
      theta_pid = PID(p=0.001, i=0)

      LED(1).on()
      LED(2).on()
      LED(3).on()

      sensor.reset()
      #sensor.set_vflip(True)
      #sensor.set_hmirror(True)
      sensor.set_pixformat(sensor.RGB565)
      sensor.set_framesize(sensor.QQQVGA) # 80x60 (4,800 pixels) - O(N^2) max = 2,3040,000.
      #sensor.set_windowing([0,20,80,40])
      sensor.skip_frames(time = 2000) # WARNING: If you use QQVGA it may take seconds
      clock = time.clock() # to process a frame sometimes.

      while(True):
      clock.tick()
      img = sensor.snapshot().binary([THRESHOLD])
      line = img.get_regression([(100,100)], robust = True)
      if (line):
      rho_err = abs(line.rho())-img.width()/2
      if line.theta()>90:
      theta_err = line.theta()-180
      else:
      theta_err = line.theta()
      img.draw_line(line.line(), color = 127)
      print(rho_err,line.magnitude(),rho_err)
      if line.magnitude()>8:
      #if -40<b_err<40 and -30<t_err<30:
      rho_output = rho_pid.get_pid(rho_err,1)
      theta_output = theta_pid.get_pid(theta_err,1)
      output = rho_output+theta_output
      car.run(50+output, 50-output)
      else:
      car.run(0,0)
      else:
      car.run(50,-50)
      pass
      #print(clock.fps())

      ···



    • https://singtown.com/learn/50235/

      参考这个视频,代码要自己改。