1、简介

STM32+ESP8266点灯（AP+STA 模式）点灯（1）一文已经通过串口助手实现与网络调试助手透传，本文通过STM32单片机替代网络调试助手，实现远程点灯。

2、单片机配置

2.1 cubemax配置

2.1.1 RCC配置

 2.1.2 SYS配置

  2.1.3 时钟树配置

   2.1.4 LED配置

  2.1.5 UART配置

 2.1.6 UART配置

 2.2 KEIL 5配置

2.2.1 led宏定义

#define LED_ON  HAL_GPIO_WritePin(LED_GPIO_Port,LED_Pin,GPIO_PIN_SET)
#define LED_OFF HAL_GPIO_WritePin(LED_GPIO_Port,LED_Pin,GPIO_PIN_RESET)

 2.2.2 串口配置

#include "stdio.h"

/* USER CODE BEGIN 1 */
int fputc(int ch, FILE *f)
{uint8_t temp[1] = {ch};HAL_UART_Transmit(&huart1, temp, 1, 2);//HAL_UART_Transmit(&huart2, temp, 1, 2);return ch;
}
/* USER CODE END 1 */

 2.2.3 联网配置

main.c

/* USER CODE BEGIN Header */
/* @file           : main.c* @brief          : Main program body* @attention Copyright (c) 2023 STMicroelectronics.* All rights reserved. This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS./
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
char buf;
/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
void  HAL_UART_RxCpltCallback(UART_HandleTypeDef  *huart)//串口中断回调函数
{if(huart1.Instance == USART1){if(buf == 'A'){LED_ON;HAL_UART_Receive_IT(&huart1, (uint8_t *)&buf, 1);}if(buf == 'B'){LED_OFF;HAL_UART_Receive_IT(&huart1, (uint8_t *)&buf, 1);}HAL_UART_Receive_IT(&huart1, (uint8_t *)&buf, 1);}   
}/* USER CODE END PTD *//* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD *//* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV *//* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 *//* USER CODE END 0 *//* @brief  The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 *//* USER CODE END 1 *//* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();MX_USART1_UART_Init();/* USER CODE BEGIN 2 */HAL_Delay(200);printf("AT+CIPSTART=\\"TCP\\",\\"192.168.218.245\\",8880\\r\\n");HAL_Delay(200);printf("AT+CIPMODE=1\\r\\n");HAL_Delay(200);printf("AT+CIPSEND\\r\\n");HAL_Delay(200);LED_ON;
//	printf("AT+RST\\r\\n");HAL_Delay(200);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){		HAL_UART_Receive_IT(&huart1, (uint8_t *)&buf, 1);/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}/* @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/ Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;RCC_OscInitStruct.HSIState = RCC_HSI_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/ Initializes the CPU, AHB and APB buses clocks*/RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 *//* USER CODE END 4 *//* @brief  This function is executed in case of error occurrence.* @retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */
}#ifdef  USE_FULL_ASSERT
/* @brief  Reports the name of the source file and the source line number*         where the assert_param error has occurred.* @param  file: pointer to the source file name* @param  line: assert_param error line source number* @retval None*/
void assert_failed(uint8_t *file, uint32_t line)
{/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\\r\\n", file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

3、测试

在网络调试助手分别发送A、B进行点灯关灯。