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    • import sensor, image, time, pyb

      from pyb import Pin
      from pyb import UART
      from pyb import LED

      led_R = pyb.LED(1) # Red LED = 1, Green LED = 2, Blue LED = 3, IR LEDs = 4.
      led_G = pyb.LED(2) # Red LED = 1, Green LED = 2, Blue LED = 3, IR LEDs = 4.
      led_B = pyb.LED(3) # Red LED = 1, Green LED = 2, Blue LED = 3, IR LEDs = 4.

      red_threshold = (22, 72, 40, 69, 14, 58)

      sensor.reset()
      sensor.set_pixformat(sensor.RGB565)
      sensor.set_framesize(sensor.QVGA)
      sensor.skip_frames(time = 2000)

      clock = time.clock()

      while(True):
      clock.tick()
      img = sensor.snapshot()
      blobs = img.find_blobs([red_threshold], pixels_threshold=20, area_threshold=20, merge=True)
      for blob in blobs:
      if blob.area()>max_blob.area():
      max_blob = blob
      x_error = max_blob.cx()
      h_error = max_blob.cy()
      print(x_error)
      print(h_error)
      0_1552900649447_6XVDYFNE0YQZLZ0W2V@%P~5.png