stm32f103c8t6蓝牙通信的代码

以下是基于STM32CubeMX和HAL库的蓝牙通信代码示例：

1. 配置USART串口和蓝牙模块的GPIO引脚

/* USART2 GPIO Configuration */
GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

/* Configure GPIO pin : BluetoothState_Pin */
GPIO_InitStruct.Pin = BluetoothState_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(BluetoothState_GPIO_Port, &GPIO_InitStruct);

2. 配置USART串口和蓝牙模块的参数

/* USART2 parameter configuration*/
huart2.Instance = USART2;
huart2.Init.BaudRate = 9600;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
  Error_Handler();
}

3. 发送数据

/* Send data */
char data[] = "Hello, Bluetooth!";
HAL_UART_Transmit(&huart2, (uint8_t *)data, strlen(data), HAL_MAX_DELAY);

4. 接收数据

/* Receive data */
char rxBuffer[100];
HAL_UART_Receive(&huart2, (uint8_t *)rxBuffer, sizeof(rxBuffer), HAL_MAX_DELAY);

请根据你的具体蓝牙模块和应用需求进行适当修改。