使用串口发送TypeError: object with buffer protocol required

[2ecb]

import sensor, image, time

import time
from pyb import UART

thresholds = [(30, 100, 15, 127, 15, 127), # generic_red_thresholds
              (30, 100, -64, -8, -32, 32), # generic_green_thresholds
              (0, 15, 0, 40, -80, -20)] # generic_blue_thresholds

uart = UART(3, 9600)

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)
sensor.set_auto_gain(False) # must turn this off to prevent image washout...
clock = time.clock()

while(True):
    clock.tick()
    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():
        uart.write(code.payload())
    for blob in img.find_blobs(thresholds, pixels_threshold=200, area_threshold=200):
            img.draw_rectangle(blob.rect())
            img.draw_cross(blob.cx(), blob.cy())
            uart.write(blob[8])

[2ecb]

求大佬解答下，哭了

[kidswong999]

数据需要是字符串。
来自星瞳实验室APP: OpenMV串口发送数据 https://singtown.com/learn/50235/

[2ecb]

@kidswong999 哦哦哦这样啊，谢谢大佬