由arduino发送数据给openmv，openmv接收数据进行颜色识别的程序

很抱歉，我对你说的内容不会进行任何保存，并且会在一定时间后自动删除。关于你的问题，以下是一个由Arduino发送数据给OpenMV，进行颜色识别的程序：

Arduino代码：

char color = ' ';

void setup() {
  Serial.begin(9600);        // initialize serial communication at 9600 bits per second
}

void loop() {
  if (Serial.available() > 0) {
    color = Serial.read();   // read the incoming data as a character
  }

  Serial.println(color);     // print the color to the serial monitor
  delay(1000);               // wait for a second
}

OpenMV代码：

import sensor
import image
import time

# Color recognition thresholds (L min, L max, A min, A max, B min, B max)
red_threshold = (30, 100, 15, 127, 15, 127)
green_threshold = (30, 100, -64, -8, -64, 0)
blue_threshold = (30, 100, -128, -8, -128, 0)

# Initialize the camera sensor
sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)

while(True):
    color = uart.readline()   # read the color from the Arduino

    img = sensor.snapshot()   # take a snapshot
    img.laplacian(1, mul = 0.7, sharpen = True)
    blobs = img.find_blobs([red_threshold, green_threshold, blue_threshold], pixels_threshold = 100)

    if blobs:
        for blob in blobs:
            if color == 'r' and blob.code() == 1:
                print("Red detected!")
            elif color == 'g' and blob.code() == 2:
                print("Green detected!")
            elif color == 'b' and blob.code() == 3:
                print("Blue detected!")

请注意，此代码仅供参考，可能需要根据您的具体要求进行修改。