openmv和arduino 串口通信 为什么发送的数据在arduino 串口监视器上只有横线啊

[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, -100, 10, 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.

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

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()
    if statistics.a_mode()>0:
       color_a=0
    else:
       color_a=1
    #color_b=statistics.b_mode()
    print(color_a)
    data=[]
    data.append(color_a)
    data_out = json.dumps(set(data))
    img.draw_rectangle(ROI)
    #uart.write(str(color_a))
    print('you send:',data_out)
    uart.write(data_out +'\n')

#arduino部分

#include <SoftwareSerial.h>

SoftwareSerial softSerial(10, 11); // RX, TX
typedef struct
{
  int data[50][2] = {{0,0}};
  int len = 0;
}List;
List list;

void setup() {
  // put your setup code here, to run once:
  softSerial.begin(115200);
  Serial.begin(115200);
}

void loop() {
  if(softSerial.available())
  {
    getList();
    for (int i=0; i<list.len; i++)
    {
      Serial.print(list.data[i][0]);
      Serial.print('\t');
      Serial.println(list.data[i][1]);
    }
    Serial.println("============");
    clearList();
  }

}


String detectString()
{
  while(softSerial.read() != '{');
  return(softSerial.readStringUntil('}'));
}
void clearList()
{
  memset(list.data, sizeof(list.data),0);
  list.len = 0;
}
void getList()
{
  String s = detectString();
  String numStr = "";
  for(int i = 0; i<s.length(); i++)
  {
    if(s[i]=='('){
      numStr = "";
    }
    else if(s[i] == ','){
      list.data[list.len][0] = numStr.toInt();
      numStr = "";
    }
    else if(s[i]==')'){
      list.data[list.len][1] = numStr.toInt();
      numStr = "";
      list.len++;
    }
    else{
      numStr += s[i];
    }
  }
}

[kidswong999]

先看OpenMV端是否发送了数据。

再看接线对不对

[5fpd]

openmv 串行终端有数据，接的线是p4-10 P5-11 代码就是openmv官网的串行通信下，然后如果我接的arduino 0 1 (rxtx)的话就可以在看到数据了，不知道为啥子接10 11引脚就不行了，我估计是openmv的输入的数据格式有问题，please帮忙看一下

[5fpd]

@kidswong999 5fpd 大约14小时之前
openmv 串行终端有数据，接的线是p4-10 P5-11 代码就是openmv官网的串行通信下，然后如果我接的arduino 0 1 (rxtx)的话就可以在看到数据了，不知道为啥子接10 11引脚就不行了，我估计是openmv的输入的数据格式有问题，please帮忙看一下

[kidswong999]

@5fpd 发一下Arduino上的数据