编写SampleApp_MessageMSGCB数据消息队列处理的回调函数, Z-Stack的API函数直接传参数即可。 #define HAL_LED_2 0x02 void SampleApp_MessageMSGCB( afIncomingMSGPacket_t *pkt ) { ____________________________; //声明并初始化7个字节的缓冲区 switch ( pkt->clusterId ) { case SAMPLEAPP_PERIODIC_CLUSTERID: ____________________________ //将接收到的数据复制到缓冲区 //判断是不是NEWLab这6个字符 if( ____________________________ ) { //若是NEWLab这6个字符，使LED2闪烁 ____________________________ } else { //若不是NEWLab这6个字符，则点亮LED2 ____________________________ } break; default: break; } }

以下是SampleApp_MessageMSGCB函数的修改版，用于处理数据消息队列中的数据包，并根据接收到的数据来控制LED2：

void SampleApp_MessageMSGCB( afIncomingMSGPacket_t *pkt )
{
  uint8 buffer[7] = {0};  // Declare and initialize buffer with 7 bytes

  switch ( pkt->clusterId )
  {
    case SAMPLEAPP_PERIODIC_CLUSTERID:
      // Copy received data to buffer
      memcpy(buffer, pkt->cmd.Data, pkt->cmd.DataLength);

      // Check if the first 6 bytes are "NEWLab"
      if (memcmp(buffer, "NEWLab", 6) == 0)
      {
        // If the first 6 bytes are "NEWLab", make LED2 blink
        HalLedBlink(HAL_LED_2, 4, 50, 500);
      }
      else
      {
        // If the first 6 bytes are not "NEWLab", turn on LED2
        HalLedSet(HAL_LED_2, HAL_LED_MODE_ON);
      }
      break;

    default:
      break;
  }
}

请注意，此修改版本的代码需要在其他部分定义SAMPLEAPP_PERIODIC_CLUSTERID，并需要使用HalLedBlink和HalLedSet函数来控制LED2的状态。