看上去是sensor初始化失败，检查一下摄像头模块安装的对不对。如果不行，联系售后寄回维修。

import sensor
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.set_auto_exposure(False, exposure_us=10000)

sensor.skip_frames(time=2000)

print(sensor.get_exposure_us())

这个代码我在OpenMV4 Plus OV5640上运行，结果显示9952。符合预期。

import sensor, image, time

sensor.reset() # Initialize the camera sensor.
sensor.set_pixformat(sensor.GRAYSCALE) # or sensor.GRAYSCALE
sensor.set_framesize(sensor.B64X64) # or B40x30 or B64x64
clock = time.clock() # Tracks FPS.

old = sensor.snapshot()
#先获取一张图片

while(True):
    clock.tick() # Track elapsed milliseconds between snapshots().
    img = sensor.snapshot() # Take a picture and return the image.

    [delta_x, delta_y, response] = old.find_displacement(img)
    #delta_x delta_y分别表示 x y 方向上，这一帧图像相比上帧图像移动的像素数目。

    old = img.copy()

    print("%0.1f X\t%0.1f Y\t%0.2f QoR\t%0.2f FPS" % \
        (delta_x, delta_y, response, clock.fps()))

# LetNet Example
import sensor, image, time

sensor.reset()                      # Reset and initialize the sensor.
sensor.set_contrast(3)
sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QVGA)   # Set frame size to QVGA (320x240)
sensor.set_windowing((28, 28))

sensor.skip_frames(time = 2000)     # Wait for settings take effect.
sensor.set_auto_gain(False)
sensor.set_auto_exposure(False)

clock = time.clock()                # Create a clock object to track the FPS.

while(True):
    clock.tick()                    # Update the FPS clock.
    img = sensor.snapshot()         # Take a picture and return the image.
    out = img.invert().find_number()
    if out[1] > 3.0:
        print(out[0])
    #print(clock.fps())             # Note: OpenMV Cam runs about half as fast when connected
                                    # to the IDE. The FPS should increase once disconnected.

Hello World Example

Welcome to the OpenMV IDE! Click on the green run arrow button below to run the script!

import sensor, image, time

sensor.reset() # Reset and initialize the sensor.
sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
sensor.skip_frames(time = 2000) # Wait for settings take effect.
clock = time.clock() # Create a clock object to track the FPS.

while(True):
clock.tick() # Update the FPS clock.
img = sensor.snapshot() # Take a picture and return the image.
print(clock.fps()) # Note: OpenMV Cam runs about half as fast when connected
# to the IDE. The FPS should increase once disconnected.

import sensor, image, time
sensor.reset() # 初始化sensor
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(time = 2000)
clock = time.clock()
while(True):
clock.tick()
img = sensor.snapshot() # 拍一张照片，返回图像
img1 = img.mean(2)#均值滤波后的图像
for i in range(0,img.width()):
for j in range(0,img.height()):
tuple1 = img.get_pixel(i,j)
tuple2 = img1.get_pixel(i,j)
tuple3 = (tuple1[0]-tuple2[0],tuple1[1]-tuple2[1],tuple1[2]-tuple2[2])
print(tuple1)
print(tuple2)
print(tuple3)
print(clock.fps())

@x1oq # Hello World Example

Welcome to the OpenMV IDE! Click on the green run arrow button below to run the script!

import sensor, image, time

sensor.reset() # Reset and initialize the sensor.
sensor.set_pixformat(sensor.RGB565 ) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
sensor.skip_frames(time = 2000) # Wait for settings take effect.
clock = time.clock() # Create a clock object to track the FPS.

while(True):
clock.tick() # Update the FPS clock.
img = sensor.snapshot() # Take a picture and return the image.
print(clock.fps()) # Note: OpenMV Cam runs about half as fast when connected
# to the IDE. The FPS should increase once disconnected.

Hello World Example

Welcome to the OpenMV IDE! Click on the green run arrow button below to run the script!

import sensor, image, time

sensor.reset() # Reset and initialize the sensor.
sensor.set_pixformat(sensor.RGB565 ) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
sensor.skip_frames(time = 2000) # Wait for settings take effect.
clock = time.clock() # Create a clock object to track the FPS.

while(True):
clock.tick() # Update the FPS clock.
img = sensor.snapshot() # Take a picture and return the image.
print(clock.fps()) # Note: OpenMV Cam runs about half as fast when connected
# to the IDE. The FPS should increase once disconnected.

# Hello World Example
#
# Welcome to the OpenMV IDE! Click on the green run arrow button below to run the script!

import sensor, image, time

sensor.reset()                      # Reset and initialize the sensor.
sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QVGA)   # Set frame size to QVGA (320x240)
sensor.skip_frames(time = 2000)     # Wait for settings take effect.
clock = time.clock()                # Create a clock object to track the FPS.

while(True):
    clock.tick()                    # Update the FPS clock.
    img = sensor.snapshot()         # Take a picture and return the image.
    print(clock.fps())              # Note: OpenMV Cam runs about half as fast when connected
                                    # to the IDE. The FPS should increase once disconnected.

import sensor, image, time, math

sensor.reset()                      # Reset and initialize the sensor.
sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.VGA)   # Set frame size to QVGA (320x240)
sensor.skip_frames(time = 2000)     # Wait for settings take effect.
clock = time.clock()                # Create a clock object to track the FPS.

while(True):
    #img = sensor.snapshot()         # Take a picture and return the image.
    img = sensor.snapshot()
    #红色阈值
    for y in range(0,480,3):
        for x in range(0,640):
            #img.get_pixel(x,y)
            if img.get_pixel(x,y)>=205:
               img.get_pixel(x,y)=255
            elif img.get_pixel(x,y)<=195:
               img.get_pixel(x,y)=0
            else:
               img.get_pixel(x,y)=img.get_pixel(x,y)