这个代码之前用的一直好好的 吃顿饭回来就成这样了 走的时候线也拔掉了，求看看怎么解决

[luro]

import sensor, image, time
from pyb import UART
import json

red_threshold  = (87, 21, 27, 93, -5, 92)
sensor.reset() # Initialize the camera sensor.
sensor.set_pixformat(sensor.RGB565) # use RGB565.
sensor.set_framesize(sensor.QQVGA) # use QQVGA for speed.
sensor.skip_frames(10) # Let new settings take affect.
sensor.set_auto_whitebal(False) # turn this off.
clock = time.clock() # Tracks FPS.

uart = UART(3, 115200)
uart.init(115200, bits=8, parity=None, stop=1)  #8位数据位，无校验位，1位停止位

def find_max(blobs):
    max_size=0
    for blob in blobs:
        if blob[2]*blob[3] > max_size:
            max_blob=blob
            max_size = blob[2]*blob[3]
    return max_blob
while(True):
    clock.tick() # Track elapsed milliseconds between snapshots().
    img = sensor.snapshot() # Take a picture and return the image.

    blobs = img.find_blobs([red_threshold])
    if blobs:

        max_blob = find_max(blobs)
        img.draw_cross(max_blob.cx(),max_blob.cy())
        img.draw_circle(max_blob.cx(),max_blob.cy(),max_blob.cx()-max_blob.x(), color = (255, 255, 255))
        X =int(max_blob.cx()-img.width()/2)
        Y =int(max_blob.cy()-img.height()/2)

      #  FH = bytearray([0xb3,0xb3])
      #  uart.write(FH)     #打印帧头

        data = bytearray([0xb3,0xb3,-X,Y,0x5b])
        uart.write(data)    #打印XY轴的偏移坐标


        print("X轴偏移坐标 : ",-X)
        print("Y轴偏移坐标 : ",Y)


        print("帧率 : ",clock.fps())请在这里粘贴代码

[luro]

[kidswong999]

可能是硬件的问题，联系售后维修吧。