星瞳实验室APP,快速收到回复
  • 我们只解决官方正版的OpenMV的问题(STM32),其他的分支有很多兼容问题,我们无法解决。
  • 如果有产品硬件故障问题,比如无法开机,论坛很难解决。可以直接找售后维修
  • 发帖子之前,请确认看过所有的视频教程,https://singtown.com/learn/ 和所有的上手教程http://book.openmv.cc/
  • 每一个新的提问,单独发一个新帖子
  • 帖子需要目的,你要做什么?
  • 如果涉及代码,需要报错提示全部代码文本,请注意不要贴代码图片
  • 必看:玩转星瞳论坛了解一下图片上传,代码格式等问题。
  • arduino不能完全接受openmv发送的图像像素坐标数据。



    • 0_1633400253158_af3145da-6e3b-4651-b6ee-96f7e9dcf10d-1633400234(1).png openmv代码

      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, 6, 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() # Initialize the camera sensor.
      sensor.set_pixformat(sensor.RGB565) # use RGB565.
      sensor.set_framesize(sensor.QQVGA) # use QQVGA for speed.
      sensor.skip_frames(10) # Let new settings take affect.
      sensor.set_auto_whitebal(False) # turn this off.
      clock = time.clock() # Tracks FPS.

      uart = UART(3, 19200)
      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

      while(True):
      img = sensor.snapshot() # Take a picture and return the image.

      blobs = img.find_blobs([yellow_threshold])
      if blobs:
          max_blob=find_max(blobs)
          print('sum :', len(blobs))
          img.draw_rectangle(max_blob.rect())
          img.draw_cross(max_blob.cx(), max_blob.cy())
      
          output_str="[%d,%d]" % (max_blob.cx(),max_blob.cy()) #方式1
          #output_str=json.dumps([max_blob.cx(),max_blob.cy()]) #方式2
          print('you send:',output_str)
          uart.write(output_str+'\r\n')
      else:
          print('not found!')
      

      Arduino代码
      void setup() {
      // put your setup code here, to run once:
      Serial.begin(19200);
      }

      void loop() {
      // put your main code here, to run repeatedly:
      if (Serial.available()) {
      // Read the most recent byte
      byte byteRead = Serial.read();
      // ECHO the value that was read
      Serial.write(byteRead);
      }
      }



    • 代码都是官网上的,没改过。