@kidswong999
保存到内部存储就可以，保存到sd卡就卡死，等一会sd卡才能再显示出来 。保存的图像就是己损坏的了

@kidswong999 还是写到内部存储了

@kidswong999 固件升级到3.0.0了，还是写不到sd卡里。sd卡里还是空的

@kidswong999 在我的电脑里已经有了sd卡，但是程序写的时候还是写到内置存储了。它怎么不会写到sd卡里？？？

@kidswong999 试过试过，我一直都是这样做的，sd卡也显示出来了。
从别的盘复制到sd可以，但是不能从ide往里面保存图像，会卡死。
这个程序是先创建一个temp文件夹，这个文件夹也没创建出来。
图里的那个文件夹是我手动创建的。

用的mv2，插了空白的sd卡，程序就是例程中的移动检测。
帮忙看看

#
# Note: You will need an SD card to run this example.
#
# This example demonstrates using frame differencing with your OpenMV Cam to do
# motion detection. After motion is detected your OpenMV Cam will take picture.

import sensor, image, pyb, os

RED_LED_PIN = 1
BLUE_LED_PIN = 3

sensor.reset() # Initialize the camera sensor.
sensor.set_pixformat(sensor.RGB565) # or sensor.GRAYSCALE
sensor.set_framesize(sensor.QVGA) # or sensor.QQVGA (or others)
sensor.skip_frames(10) # Let new settings take affect.
sensor.set_auto_whitebal(False) # Turn off white balance.

if not "temp" in os.listdir(): os.mkdir("temp") # Make a temp directory

while(True):

    pyb.LED(RED_LED_PIN).on()
    print("About to save background image...")
    sensor.skip_frames(60) # Give the user time to get ready.

    pyb.LED(RED_LED_PIN).off()
    sensor.snapshot().save("temp/bg.bmp")
    print("Saved background image - Now detecting motion!")
    pyb.LED(BLUE_LED_PIN).on()

    diff = 10 # We'll say we detected motion after 10 frames of motion.
    while(diff):
        img = sensor.snapshot()
        img.difference("temp/bg.bmp")
        stats = img.statistics()
        # Stats 5 is the max of the lighting color channel. The below code
        # triggers when the lighting max for the whole image goes above 20.
        # The lighting difference maximum should be zero normally.
        if (stats[5] > 20):
            diff -= 1

    pyb.LED(BLUE_LED_PIN).off()
    print("Movement detected! Saving image...")
    sensor.snapshot().save("temp/snapshot-%d.jpg" % pyb.rng()) # Save Pic.