3-01-tcs34725:颜色识别
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.. code-block:: python

    # -*- coding: UTF-8 -*-
    #实验效果：读取I2C TCS34725颜色传感器数值
    #接线：使用windows或linux电脑连接一块arduino主控板，TCS34725颜色传感器接到I2C口SCL SDA

    import time
    from pinpong.board import Board
    from pinpong.libs.dfrobot_tcs34725 import TCS34725 #从libs导入tcs34725库

    Board("uno").begin()               #初始化，选择板型(uno、leonardo、xugu)和端口号，不输入端口号则进行自动识别
    #Board("uno","COM36").begin()      #windows下指定端口初始化
    #Board("uno","/dev/ttyACM0").begin() #linux下指定端口初始化
    #Board("uno","/dev/cu.usbmodem14101").begin()   #mac下指定端口初始化

    tcs = TCS34725() #传感器初始化

    print("Color View Test!");
    while True: 
      if tcs.begin(): #查找传感器，读取到则返回True
        print("Found sensor")
        break #找到 跳出循环
      else:
        print("No TCS34725 found ... check your connections")
        time.sleep(1)

    while True:
      r,g,b,c = tcs.get_rgbc() #获取rgbc数据
      print(r,g,b,c)
      print("C=%d\tR=%d\tG=%d\tB=%d\t"%(c,r,g,b))
      
      '''
      #数据转换
      r /= c 
      g /= c
      b /= c
      r *= 256
      g *= 256
      b *= 256;
      print("------C=%d\tR=%d\tG=%d\tB=%d\t"%(c,r,g,b))
      '''
      time.sleep(1)