4. utime报错'module' object has no attribute 'sleep_ms'如何解决？
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    • utime报错'module' object has no attribute 'sleep_ms'如何解决？

    • Y

      红外RGB565跟踪示例

      这个例子展示了使用OpenMV Cam进行红外RGB565跟踪。

      import sensor, image
      #import time

      from pyb import UART

      import utime

      import pyb

      thresholds = (100,100,0,0,0,0) # thresholds for bright white light from IR.

      sensor.reset()

      sensor.set_pixformat(sensor.RGB565)

      sensor.set_framesize(sensor.VGA)

      sensor.set_windowing((240,240)) # 240x240 center pixels of VGA

      sensor.skip_frames(time = 10)

      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() # Tracks FPS.

      uart = UART(3, 115200)

      def find_max(blobs):
      max_size=0
      for blob in blobs:
      if blob.pixels() >max_size:
      max_blob=blob

      max_size = blob.pixels()

      return max_blob

      while(True):

      time.sleep_ms(50)

      #clock.tick()
#for i in range(0,600):
 # clock.tick()# Track elapsed milliseconds between snapshots().
start = time.ticks_ms()
#time_start = pyb.millis()


img = sensor.snapshot()#binary([thresholds], invert=True, zero=True)

blobs=img.find_blobs([thresholds],pixels_threshold=200,area_threshold=250)

if blobs:

  output_str = json.dumps(blobs)

  max_blob=find_max(blobs)

  img.draw_rectangle(max_blob.rect(),color=(255,0,0))

  output_str="[%d,%d]" % (max_blob.cx(),max_blob.cy())

  print('you send:',output_str)

  uart.write(output_str+'\n')

  print(clock.fps())

  delta = time.ticks_diff(time.ticks_ms(), start)
  #duration = pyb.elapsed_millis(time_start)
  print('a',delta)
  print("FPS:", clock.fps())

        #img.draw_cross(blob.cx(), blob.cy())
else:

            print('not found!')
      0

    • 改成time.sleep()

      0
    • Y

      在delta = time.ticks_diff(time.ticks_ms(), start)报错，'module' object has no attribute 'ticks_diff'

      0

    • delta = utime.ticks_diff(utime.ticks_ms(), start)

      0