我问的是为什么连接只显示coms口而没有视频教程的那三个 我已经安装上串口调试扩展板勒

@星瞳AI小助手

我第一次装好运行，是可以识别出三个串口的，可是拔出得时候没有按退出直接拔了，后来再插进去就识别不出来了，怎么办

请在这里粘贴代码

import sensor, image, time, math

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
(88, 44, 6, 51, -57, -7)] # generic_pink_thresholds

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False) # 关闭白平衡
sensor.set_auto_whitebal(False) # 关闭感官原件
clock = time.clock()

while(True):
clock.tick()
img = sensor.snapshot()
for blob in img.find_blobs(thresholds, pixels_threshold=200, area_threshold=200): #这些值使得blob是圆形时则稳定
if blob.elongation() > 0.5: #延伸率
img.draw_edges(blob.min_corners(), color=(255,0,0)) #红色对应的RGB
img.draw_line(blob.major_axis_line(), color=(0,255,0)) #绿色对应RGB
img.draw_line(blob.minor_axis_line(), color=(0,0,255)) #color为蓝色的RGB
img.draw_line(blob.minor_axis_line(), color=(255,192,203)) #粉色RGB
img.draw_rectangle(blob.rect())
img.draw_cross(blob.cx(), blob.cy())

    img.draw_keypoints([(blob.cx(), blob.cy(), int(math.degrees(blob.rotation())))], size=20)
print(clock.fps())