这段代码怎么调整，我的目的是把它的数据发送到arduino端的串口监视器器

[5fpd]

# Blob Detection and uart transport
import sensor, image, time
from pyb import UART
import json
# For color tracking to work really well you should ideally be in a very, very,
# very, controlled enviroment where the lighting is constant...
yellow_threshold   = (65, 100, -10, 60, 24, 51)
# You may need to tweak the above settings for tracking green things...
# Select an area in the Framebuffer to copy the color settings.
sensor.reset() # 初始化摄像头
sensor.set_pixformat(sensor.RGB565) # 格式为 RGB565.
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(10) # 跳过10帧，使新设置生效
sensor.set_auto_whitebal(False)               # Create a clock object to track the FPS.

ROI=(80,30,15,15)
uart = UART(3, 115200)

while(True):
    img = sensor.snapshot()         # Take a picture and return the image.
    statistics=img.get_statistics(roi=ROI)
    #color_l=statistics.l_mode()
    color_a=statistics.a_mode()
    output_str="" % (statistics.a_mode())
    #color_b=statistics.b_mode()
    print(color_a)
    img.draw_rectangle(ROI)

        uart.write(statistics.a_mode())

[kidswong999]

uart.write(str(statistics.a_mode()))

另外你缩进不对。