tcs34725颜色传感器 stm32

TCS34725是一款数字颜色传感器，可测量红、绿、蓝三种颜色以及光线强度。它采用的是I2C接口，可与STM32微控制器进行通信。以下是一些参考代码，希望能对你有帮助：

1. 初始化I2C接口

I2C_HandleTypeDef hi2c1;

void MX_I2C1_Init(void)
{

  hi2c1.Instance = I2C1;
  hi2c1.Init.ClockSpeed = 400000;
  hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
    Error_Handler();
  }

}

2. 初始化TCS34725

#define TCS34725_ADDRESS (0x29 << 1)

void TCS34725_Init(void)
{
    uint8_t data[2];

    // Power on and enable TCS34725
    data[0] = 0x80;
    data[1] = 0x03;
    HAL_I2C_Master_Transmit(&hi2c1, TCS34725_ADDRESS, data, 2, 100);

    // Set integration time to 700ms
    data[0] = 0x81;
    data[1] = 0x00;
    HAL_I2C_Master_Transmit(&hi2c1, TCS34725_ADDRESS, data, 2, 100);

    // Set gain to 1x
    data[0] = 0x8F;
    data[1] = 0x00;
    HAL_I2C_Master_Transmit(&hi2c1, TCS34725_ADDRESS, data, 2, 100);
}

3. 读取颜色数据

uint16_t readColor(uint8_t reg)
{
    uint8_t data[2];

    // Read color data registers
    HAL_I2C_Master_Transmit(&hi2c1, TCS34725_ADDRESS, &reg, 1, 100);
    HAL_I2C_Master_Receive(&hi2c1, TCS34725_ADDRESS, data, 2, 100);

    // Convert data to 16-bit value
    uint16_t value = data[1] << 8 | data[0];

    return value;
}

void readRGB(uint16_t *r, uint16_t *g, uint16_t *b)
{
    *r = readColor(0x16);
    *g = readColor(0x18);
    *b = readColor(0x1A);
}

以上代码仅供参考，具体实现还需要根据你的需求进行调整。