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  • 我们只解决官方正版的OpenMV的问题(STM32),其他的分支有很多兼容问题,我们无法解决。
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  • 为什么这样串口发送不了数据啊



    • 0_1546783714588_a342278a-2196-4679-9430-127f4cf23cba-image.png

      # Multi Color Blob Tracking Example
      #
      # This example shows off multi color blob tracking using the OpenMV Cam.
      
      import sensor, image, time
      import time
      from pyb import UART
      # Color Tracking Thresholds (L Min, L Max, A Min, A Max, B Min, B Max)
      # The below thresholds track in general red/green things. You may wish to tune them...
      thresholds = [(30, 100, 15, 127, 15, 127), # generic_red_thresholds
                    (30, 100, -64, -8, -32, 32), # generic_green_thresholds
                    (0, 15, 0, 40, -80, -20)] # generic_blue_thresholds
      # You may pass up to 16 thresholds above. However, it's not really possible to segment any
      # scene with 16 thresholds before color thresholds start to overlap heavily.
      
      sensor.reset()
      sensor.set_pixformat(sensor.RGB565)
      sensor.set_framesize(sensor.QVGA)
      sensor.skip_frames(time = 2000)
      sensor.set_auto_gain(False) # must be turned off for color tracking
      sensor.set_auto_whitebal(False) # must be turned off for color tracking
      clock = time.clock()
      uart = UART(3, 9600)
      # Only blobs that with more pixels than "pixel_threshold" and more area than "area_threshold" are
      # returned by "find_blobs" below. Change "pixels_threshold" and "area_threshold" if you change the
      # camera resolution. Don't set "merge=True" becuase that will merge blobs which we don't want here.
      
      while(True):
          clock.tick()
          img = sensor.snapshot()
          for blob in img.find_blobs(thresholds, pixels_threshold=200, area_threshold=200):
              img.draw_rectangle(blob.rect())
              img.draw_cross(blob.cx(), blob.cy())
              uart.write(blob.code ())
               time.sleep(1000)
               print(blob.code ())
      
      


    • 0_1546783959622_2faafa84-374c-4e6f-9984-345f1ec18713-image.png



    • 一眼就看到好几个错误。
      1,缩进错了
      2,code和()之间不应该有空格
      3,blob.code()应该转成字符串发送。

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



    • 那怎么转换成字符串@kidswong999



    • 看我上面链接视频



    • 哦,谢谢了那缩进是怎么回事呢@kidswong999