请编写一段代码,实现stm32f103c8t6与hc-05实时传回检测数据,并将数据传回连接的手机app上,此处数据位气体浓度数据
时间: 2024-03-31 21:36:46 浏览: 18
好的,这是一份基于蓝牙BLE的代码示例,实现了stm32f103c8t6与hc-05模块进行蓝牙通信,并将气体浓度数据传回连接的手机App上:
```c
#include "stm32f10x.h"
#include "stdio.h"
#include "string.h"
#define USART1_DR_Base 0x40013804
#define MAX_STRLEN 50
volatile char received_string[MAX_STRLEN+1];
volatile int string_received = 0;
void USART1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_Cmd(USART1, ENABLE);
}
void USART1_SendChar(char ch)
{
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
USART_SendData(USART1, ch);
}
void USART1_SendString(char *str)
{
while(*str)
{
USART1_SendChar(*str++);
}
}
void USART1_IRQHandler(void)
{
static uint16_t rx_index = 0;
char rx_char;
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
rx_char = USART_ReceiveData(USART1);
if((rx_char != '\n') && (rx_index < MAX_STRLEN))
{
received_string[rx_index++] = rx_char;
}
else
{
received_string[rx_index] = '\0';
rx_index = 0;
string_received = 1;
}
}
}
int main(void)
{
float gas_concentration = 0.0;
USART1_Init();
// 初始化蓝牙模块
// 假设蓝牙模块初始化完成,并已连接到手机App上
while(1)
{
// 读取气体浓度数据
// 假设数据存储在变量 gas_concentration 中
// 将气体浓度数据转换为字符串格式
char gas_concentration_str[10];
sprintf(gas_concentration_str, "%f", gas_concentration);
// 将气体浓度数据通过串口发送到 hc-05 模块
USART1_SendString(gas_concentration_str);
USART1_SendChar('\n');
// 等待串口数据接收完成
if(string_received == 1)
{
// 处理 hc-05 模块发送的数据
// 假设处理结果存储在变量 result 中
// 将处理结果通过蓝牙传输到手机App上
// 假设处理结果存储在变量 result_str 中
char result_str[10];
sprintf(result_str, "%d", result);
//假设使用蓝牙BLE的 AT 指令传输数据,通过开发板与蓝牙模块进行AT通信
USART1_SendString("AT+BLEUARTTX=");
USART1_SendString(result_str);
USART1_SendString("\r\n");
// 清空接收缓冲区
string_received = 0;
memset(received_string, 0, MAX_STRLEN);
}
}
}
```
上述代码通过 USART1 串口与 hc-05 模块进行通信,将气体浓度数据转换为字符串格式后发送到 hc-05 模块,并等待 hc-05 模块返回数据。在串口接收中断中,将接收到的数据存储到缓冲区中,并在接收完成后清空缓冲区。同时,将处理结果通过蓝牙BLE的 AT 指令传输到连接的手机App上。
请注意,上述代码仅提供了一个简单的示例,您需要根据实际情况进行修改和完善。