openmv扫码通信

import sensor, image, time 

import json

from pyb import UART

sensor.reset() # 初始化相机传感器

sensor.set_pixformat(sensor.RGB565) # use RGB565.

sensor.set_framesize(sensor.QQVGA) # use QQVGA for speed.

sensor.skip_frames(10) # 让新设置受到影响。

sensor.set_auto_whitebal(False) # turn this off.

clock = time.clock() # 跟踪FPS.

uart = UART(3, 9600)

while(True):

    clock.tick() # Track elapsed milliseconds between snapshots().

    img = sensor.snapshot() # Take a picture and return the image.

    img.lens_corr(1.8)

    for code in img.find_qrcodes():

        message = code.payload()

        uart.write(message)

        print(code)