4. 识别色块跟tof光学测距拓展板联合使用后读取距离的问题
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    • 识别色块跟tof光学测距拓展板联合使用后读取距离的问题

    • Y

      通过看教程将两个示例合并使用，但是想实现识别到色块然后才读取距离，然后串口再将距离发送给stm32，大佬，麻烦帮忙修改一下代码，惯我一次，我在咱家已经买了两个摄像头跟一大堆元件了。

      import sensor, image, time, math

threshold_index = 0 # 0 for red, 1 for green, 2 for blue

thresholds = [(30, 100, 15, 127, 15, 127), # generic_red_thresholds
              (30, 100, -64, -8, -32, 32), # generic_green_thresholds
              (0, 30, 0, 64, -128, 0)] # generic_blue_thresholds
from machine import I2C
from vl53l1x import VL53L1X
import time

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()

i2c = I2C(2)
distance = VL53L1X(i2c)

# 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. "merge=True" merges all overlapping blobs in the image.

while(True):
    clock.tick()
    img = sensor.snapshot()
    for blob in img.find_blobs([thresholds[threshold_index]],roi=(150,90,80,80), pixels_threshold=200, area_threshold=200, merge=True):
        # These values depend on the blob not being circular - otherwise they will be shaky.
        if blob.elongation() > 0.5:
            img.draw_edges(blob.min_corners(), color=(255,0,0))
            img.draw_line(blob.major_axis_line(), color=(0,255,0))
            img.draw_line(blob.minor_axis_line(), color=(0,0,255))
        # These values are stable all the time.
        img.draw_rectangle(blob.rect())
        img.draw_cross(blob.cx(), blob.cy())
        # Note - the blob rotation is unique to 0-180 only.
        img.draw_keypoints([(blob.cx(), blob.cy(), int(math.degrees(blob.rotation())))], size=20)
    print(clock.fps())

    print("range: mm ", distance.read())
    time.sleep_ms(50)
      0
      Y
       1 条回复
    • Y

      此回复已被删除！
      0
    • Y

      @kidswong999

      大佬，惯我一次吧，真的在咱家买了好多东西

      0

    • 大概就是这个意思：

      while(True):
    clock.tick()
    img = sensor.snapshot()
    blobs = img.find_blobs()
    if blobs:
        d = distance.read()
        uart.write(str(d))
    for b in blobs:
        xxx
      0