OpenMV时间操作

基于OpenMV平台进行开发：

特别注意：

起始时间为上电时间，时间只能显示分和秒

程序运行结果：

程序代码：

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.

    time_data = time.ticks()

    time_data = time_data//1000

    minute = time_data//60

    second = time_data%60

    time_show =  "minute:%d second:%d" % (minute,second)

    img.draw_string(0, 0, time_show, color=255)

    print(time_show)