• 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。
  • 教程的测距代码,使用了ov5640,framesize改为sensor.FHD,报错memory erros,为何?



    • # Measure the distance
      #
      # This example shows off how to measure the distance through the size in imgage
      # This example in particular looks for yellow pingpong ball.
      
      import sensor, image, time
      
      # For color tracking to work really well you should ideally be in a very, very,
      # very, controlled enviroment where the lighting is constant...
      yellow_threshold   = (2, 85, -128, 127, 18, 64)
      # You may need to tweak the above settings for tracking green things...
      # Select an area in the Framebuffer to copy the color settings.
      
      sensor.reset() # Initialize the camera sensor.
      sensor.set_pixformat(sensor.RGB565) # use RGB565.
      sensor.set_framesize(sensor.FHD) #【ov5640】
      sensor.skip_frames(10) # Let new settings take affect.
      sensor.set_auto_whitebal(False) # turn this off.
      clock = time.clock() # Tracks FPS.
      
      K=5000#the value should be measured
      
      while(True):
          clock.tick() # Track elapsed milliseconds between snapshots().
          img = sensor.snapshot() # Take a picture and return the image.
      
          blobs = img.find_blobs([yellow_threshold], x_stride=2, y_stride=1)
          if len(blobs) == 1:
              # Draw a rect around the blob.
              b = blobs[0]
              img.draw_rectangle(b[0:4]) # rect
              img.draw_cross(b[5], b[6]) # cx, cy
              Lm = (b[2]+b[3])/2
              length = K/Lm
              print(length)
      
          #print(clock.fps()) # Note: Your OpenMV Cam runs about half as fast while
          # connected to your computer. The FPS should increase once disconnected.
      
      

      0_1685629688447_da6b4fef-794f-4cc8-aa70-1ab7e0e7fee1-image.png
      以为是内容的问题,插入了sd新卡,仍旧报错。
      请大佬不吝指点。谢谢



    • ide 3.0.3,windows7 ,openmv4 H7



    • 硬件为OpenMV4 H7 PLUS



    • 我是用OpenMV4 H7 Plus,固件4.4.2,没有出现错误。



    • @kidswong999
      感谢回复。
      0_1686103512475_c4177eec-c5a9-4d2f-8e09-9f92c65d77b7-image.png
      没有改动程序。没有错误。不知道是不是以后还会抽筋。