ESP8266_RST_Pin

ESP8266是一个常用的Wi-Fi模块，其RST_Pin（Reset Pin）是复位引脚。当RST_Pin被外部低电平信号触发时，ESP8266会进入初始化状态，也就是重新启动。这个引脚通常用于系统重启、升级固件或者在开发过程中恢复模块到初始状态。

- **作用**：在编程过程中，RST_Pin可以用于强制模块重启或恢复出厂设置，以便于调试和固件更新。
- **连接**：在硬件设计中，RST_Pin通常连接到主板上的GPIO（通用输入/输出）引脚，可以通过外部电路（如跳线、按钮或微控制器控制）来控制它的高/低状态。
- **注意事项**：在实际应用中，正确使用RST_Pin可以避免意外重启导致的数据丢失，但频繁重启也可能对模块寿命造成影响。

相关问题

stm32f103连接esp8266

在连接STM32F103和ESP8266时，你需要注意以下几点。首先，确保你的串口连接正确，不要接错串口，否则ESP8266会初始化失败。其次，你需要在代码中正确配置ESP8266的相关参数，包括client_id等。在配置完成后，你可以通过串口助手来查看连接状态，同时阿里云平台也会显示在线状态。最后，你可以使用宏定义来控制ESP8266的复位引脚，例如使用#define ESP8266_RST_Pin_SetH来设置引脚为高电平，使用#define ESP8266_RST_Pin_SetL来设置引脚为低电平。
#### 引用[.reference_title]
- *1* [stm32f103与esp8266通信](https://blog.csdn.net/qq_63742188/article/details/131197647)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [STM32F103+ESP8266接入阿里云平台（曲折的上云之路）](https://blog.csdn.net/qq_51963216/article/details/122541616)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [关于esp8266模块与stm32f103模块的连接，问题分析](https://blog.csdn.net/Antonhu/article/details/130874612)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control_2,239^v3^insert_chatgpt"}} ] [.reference_item]
[ .reference_list ]

可以帮我写一个基于stm32f103c8t6、esp8266串口WiFi和手机连接的代码

当然可以，以下是一个简单的示例代码，实现了stm32f103c8t6和esp8266之间的串口通信，并且可以通过WiFi与手机连接进行数据交互。

#include "stm32f10x.h"
#include <stdio.h>
#include <string.h>

#define USART1_RX_GPIO_PORT    GPIOA
#define USART1_RX_GPIO_CLK     RCC_APB2Periph_GPIOA
#define USART1_RX_PIN          GPIO_Pin_10

#define USART1_TX_GPIO_PORT    GPIOA
#define USART1_TX_GPIO_CLK     RCC_APB2Periph_GPIOA
#define USART1_TX_PIN          GPIO_Pin_9

#define ESP8266_USART          USART1
#define ESP8266_USART_CLK      RCC_APB2Periph_USART1
#define ESP8266_USART_BAUDRATE 115200

#define ESP8266_RST_GPIO_PORT  GPIOA
#define ESP8266_RST_GPIO_CLK   RCC_APB2Periph_GPIOA
#define ESP8266_RST_PIN        GPIO_Pin_8

#define ESP8266_CH_PD_GPIO_PORT GPIOA
#define ESP8266_CH_PD_GPIO_CLK  RCC_APB2Periph_GPIOA
#define ESP8266_CH_PD_PIN       GPIO_Pin_7

#define WIFI_SSID          "your_wifi_ssid"
#define WIFI_PASSWORD      "your_wifi_password"
#define SERVER_IP          "192.168.1.100"
#define SERVER_PORT        "8080"

#define BUFFER_SIZE 128

void USART_Config(void);
void GPIO_Config(void);
void ESP8266_Init(void);
void ESP8266_ConnectWiFi(void);
void ESP8266_ConnectServer(void);
void ESP8266_SendData(char* data);

int main(void) {
    char buffer[BUFFER_SIZE];
    USART_Config();
    GPIO_Config();
    ESP8266_Init();
    ESP8266_ConnectWiFi();
    ESP8266_ConnectServer();
    
    while (1) {
        // 读取串口数据
        if (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == SET) {
            char data = USART_ReceiveData(ESP8266_USART);
            if (data == '\n' || data == '\r') {
                buffer[strlen(buffer)] = '\0';
                ESP8266_SendData(buffer); // 发送数据到服务器
                buffer[0] = '\0';
            } else {
                strncat(buffer, &data, 1);
            }
        }
    }
}

void USART_Config(void) {
    USART_InitTypeDef USART_InitStructure;
    GPIO_InitTypeDef GPIO_InitStructure;
    
    RCC_APB2PeriphClockCmd(ESP8266_USART_CLK | USART1_TX_GPIO_CLK | USART1_RX_GPIO_CLK, ENABLE);
    
    /* USART1_TX GPIO pin configuration  */
    GPIO_InitStructure.GPIO_Pin   = USART1_TX_PIN;
    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_AF_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(USART1_TX_GPIO_PORT, &GPIO_InitStructure);
    
    /* USART1_RX GPIO pin configuration  */
    GPIO_InitStructure.GPIO_Pin   = USART1_RX_PIN;
    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_IN_FLOATING;
    GPIO_Init(USART1_RX_GPIO_PORT, &GPIO_InitStructure);
    
    /* USART1 configuration */
    USART_InitStructure.USART_BaudRate   = ESP8266_USART_BAUDRATE;
    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(ESP8266_USART, &USART_InitStructure);
    
    /* Enable USART1 */
    USART_Cmd(ESP8266_USART, ENABLE);
}

void GPIO_Config(void) {
    GPIO_InitTypeDef GPIO_InitStructure;
    
    RCC_APB2PeriphClockCmd(ESP8266_RST_GPIO_CLK | ESP8266_CH_PD_GPIO_CLK, ENABLE);
    
    /* Configure RESET pin */
    GPIO_InitStructure.GPIO_Pin   = ESP8266_RST_PIN;
    GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(ESP8266_RST_GPIO_PORT, &GPIO_InitStructure);
    
    /* Configure CH_PD pin */
    GPIO_InitStructure.GPIO_Pin   = ESP8266_CH_PD_PIN;
    GPIO_Init(ESP8266_CH_PD_GPIO_PORT, &GPIO_InitStructure);
    
    /* Reset ESP8266 module */
    GPIO_SetBits(ESP8266_RST_GPIO_PORT, ESP8266_RST_PIN);
    GPIO_SetBits(ESP8266_CH_PD_GPIO_PORT, ESP8266_CH_PD_PIN);
    GPIO_ResetBits(ESP8266_RST_GPIO_PORT, ESP8266_RST_PIN);
    for (int i = 0; i < 5000000; i++);
    GPIO_SetBits(ESP8266_RST_GPIO_PORT, ESP8266_RST_PIN);
    for (int i = 0; i < 5000000; i++);
}

void ESP8266_Init(void) {
    char buffer[BUFFER_SIZE];
    USART_SendData(ESP8266_USART, "AT\r\n");
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    
    USART_SendData(ESP8266_USART, "AT+CWMODE=1\r\n");
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    
    USART_SendData(ESP8266_USART, "AT+RST\r\n");
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    for (int i = 0; i < 5000000; i++);
    
    USART_SendData(ESP8266_USART, "AT+CWJAP=\"" WIFI_SSID "\",\"" WIFI_PASSWORD "\"\r\n");
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    for (int i = 0; i < 10000000; i++);
}

void ESP8266_ConnectWiFi(void) {
    char buffer[BUFFER_SIZE];
    USART_SendData(ESP8266_USART, "AT+CWJAP?\r\n");
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    for (int i = 0; i < 5000000; i++);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    char data = USART_ReceiveData(ESP8266_USART);
    while (data != '\r') {
        strncat(buffer, &data, 1);
        data = USART_ReceiveData(ESP8266_USART);
    }
    if (strstr(buffer, WIFI_SSID) != NULL) {
        printf("Connected to WiFi: %s\n", WIFI_SSID);
    } else {
        printf("Failed to connect to WiFi: %s\n", WIFI_SSID);
    }
}

void ESP8266_ConnectServer(void) {
    char buffer[BUFFER_SIZE];
    USART_SendData(ESP8266_USART, "AT+CIPSTART=\"TCP\",\"" SERVER_IP "\"," SERVER_PORT "\r\n");
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    for (int i = 0; i < 5000000; i++);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    char data = USART_ReceiveData(ESP8266_USART);
    while (data != '\r') {
        strncat(buffer, &data, 1);
        data = USART_ReceiveData(ESP8266_USART);
    }
    if (strstr(buffer, "CONNECT") != NULL) {
        printf("Connected to server: %s:%s\n", SERVER_IP, SERVER_PORT);
    } else {
        printf("Failed to connect to server: %s:%s\n", SERVER_IP, SERVER_PORT);
    }
}

void ESP8266_SendData(char* data) {
    int len = strlen(data);
    char buffer[BUFFER_SIZE];
    sprintf(buffer, "AT+CIPSEND=%d\r\n", len);
    USART_SendData(ESP8266_USART, buffer);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    for (int i = 0; i < 5000000; i++);
    USART_SendData(ESP8266_USART, data);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_TXE) == RESET);
    while (USART_GetFlagStatus(ESP8266_USART, USART_FLAG_RXNE) == RESET);
    USART_ReceiveData(ESP8266_USART);
    for (int i = 0; i < 5000000; i++);
}

注意，这只是一个简单的示例代码，可能需要根据实际情况进行修改和优化。