openmv里在运行时出现RuntimeError: Sensor control failed的错误弹窗，应该如何解决？

@l46w 直接把sensor设置成灰度不就行了？

https://docs.singtown.com/micropython/zh/latest/openmvcam/library/omv.sensor.html#sensor.sensor.set_pixformat

import sensor, image, time, os, ml, math, uos, gc

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()
    # img这里是彩色
    img = img.to_grayscale()
    # img这里是灰色
    print(clock.fps())

import sensor, image

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA) # can be QVGA on M7...
sensor.skip_frames(30) # 修改sensor配置之后， 跳过30帧
sensor.set_auto_gain(False) # must turn this off to prevent image washout...
while(True):
img = sensor.snapshot()
img.lens_corr(1.8) # strength of 1.8 is good for the 2.8mm lens.
for code in img.find_qrcodes():
print(code)

报错信息为
this function is unavailable on your OpenMV Cam

LCD Example

Note: To run this example you will need a LCD Shield for your OpenMV Cam.

The LCD Shield allows you to view your OpenMV Cam's frame buffer on the go.

import sensor, image, lcd

sensor.reset() # Initialize the camera sensor.
sensor.set_pixformat(sensor.RGB565) # or sensor.GRAYSCALE
sensor.set_framesize(sensor.QQVGA2) # Special 128x160 framesize for LCD Shield.
lcd.init() # Initialize the lcd screen.

while(True):
lcd.display(sensor.snapshot()) # Take a picture and display the image.

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.
    pixel_rgb = img.get_pixel(0,0)
    print(pixel_rgb)
    pixel_lab = image.rgb_to_lab(pixel_rgb)
    print(pixel_lab)

更改为：

import sensor, image, time
from ulab import numpy as np
sensor.reset()                          # Reset and initialize the sensor.
sensor.set_pixformat(sensor.GRAYSCALE)  # Set pixel format to RGB565 (or GRAYSCALE)
sensor.set_framesize(sensor.QQVGA)      # Set frame size to QVGA (320x240)
clock = time.clock()                    # Create a clock object to track the FPS.

while (True):
    img = sensor.snapshot()         # Take a picture and return the image.
    a = np.array(img, dtype=np.uint8)
    print("mean: %d std:%d"%(np.mean(a), np.std(a)))

import sensor
import display

sensor.reset()  # Initialize the camera sensor.
sensor.set_pixformat(sensor.RGB565)  # or sensor.GRAYSCALE
sensor.set_framesize(sensor.QQVGA2)  # Special 128x160 framesize for LCD Shield.
lcd = display.SPIDisplay()  # Initialize the lcd screen.

while True:
    lcd.write(sensor.snapshot())  # Take a picture and display the image.

貌似删了注册表的东西，重装ide也一样报错。

距离，和曝光，调色没有关系。

感光元件控制：
http://book.openmv.cc/example/21-Sensor-Control/sesnor_manual_gain_control.html