这是我写的代码，我是接受到串口猜开启人脸识别的 可一运行程序 芯片就发烫

[aiol]

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

sensor.reset()
sensor.set_contrast(3)
sensor.set_gainceiling(16)
sensor.set_framesize(sensor.HQVGA)
sensor.set_pixformat(sensor.GRAYSCALE)

uart = UART(3, 19200, timeout_char = 1000)
face_cascade = image.HaarCascade("frontalface", stages=25)
print(face_cascade)

# FPS clock
clock = time.clock()


while (True):
    clock.tick()
    if uart.any():
        a = uart.readline()
        print (a)
        start = pyb.millis()
        while a==b'1':
            img = sensor.snapshot()
            objects = img.find_features(face_cascade, threshold=0.75, scale_factor=1.25)
            for r in objects:
                img.draw_rectangle(r)
                if r[1]>50:
                    print ('incorrect')
                elif r[1]<50:
                    print ('correct')
            if pyb.millis() - start>60000:
                 print ('failed')
                 break
            if objects:
                 print ('success')
                 break

[kidswong999]

发烫问题不大，没什么事。