can't convert str to int,咋解决呀?
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import sensor, image, time,math,pyb from pyb import UART,LED import json import ustruct sensor.reset() sensor.set_pixformat(sensor.RGB565) sensor.set_framesize(sensor.QVGA) sensor.skip_frames(time = 2000) sensor.set_auto_gain(False) sensor.set_auto_whitebal(False) red_threshold_01=(10, 100, 127, 32, -43, 67) clock = time.clock() uart = UART(3,115200) uart.init(115200, bits=8, parity=None, stop=1) def find_max(blobs): max_size=0 for blob in blobs: if blob.pixels() > max_size: max_blob=blob max_size = blob.pixels() return max_blob def sending_data(flag): global uart; data = ustruct.pack("<bbhb", 0x2C, 0x12, str(flag), 0x5B) uart.write(data); while(True): flag = 0 clock.tick() img = sensor.snapshot() blobs = img.find_blobs([red_threshold_01]) cx=0;cy=0; if blobs: max_b = find_max(blobs) cx=max_b[5] cy=max_b[6] cw=max_b[2] ch=max_b[3] flag = "red" img.draw_rectangle(max_b[0:4]) img.draw_cross(max_b[5], max_b[6]) FH = bytearray([0x2C,0x12,str(flag),0x5B]) uart.write(FH) print(flag)
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你怎么能把"red"字符串当成bytearray发送呢?
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@kidswong999 l佬,我的想法是发送出去这个red字符串,那该去怎么改呀?
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@kidswong999 openmv与stm32通信识别到色块之后发送red这个字符串
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既然发送字符串,又加0x2c, 0x12,0x5b做什么呢?你把设备的协议文档发上来。