基于STM32的智能溫室大棚設計（源碼+設計方案）

ID:262333 · 發表于 2020-5-1 22:52

之前跟朋友聊到了現代農業蔬菜大棚的智能化問題，朋友希望能夠給一個建議，如何實現智能化管理和監控，我的大概思路是控制節點上安裝傳感器和執行器，節點間通過485總線將節點信息匯集到網關，網關通過4G網絡上送到云，在監控端網絡連接到云進行控制。之后了解到用戶的監控和節點端的距離通常不會超過3000米，而且兩者中間通常沒有高大建筑物阻擋，于是考慮是否可以使用LoRa方案實現，正好社區有LoRa模塊的使用機會，于是果斷下手，幸運的是獲得了這次試用的機會，于是果斷修改方案。

單片機源程序如下:

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f1xx_hal.h"
#include "usart.h"
#include "usb_device.h"
#include "gpio.h"
/* USER CODE BEGIN Includes */
// 包含USB頭文件
#include "usbd_cdc.h"
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
// 定義接收和發送緩沖區
uint8_t aRxBuffer[20];
uint8_t aTxBuffer[20];
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
*
* @retval None
*/
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();
MX_USART2_UART_Init();
MX_USB_DEVICE_Init();
/* USER CODE BEGIN 2 */
// 設置SX1278的M0和M1為低電平，進入透傳模式
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1,GPIO_PIN_RESET);
// 點亮LED2
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13,GPIO_PIN_RESET);
// 開啟串口接收中斷
HAL_UART_Receive_IT(&huart2, (uint8_t *)aRxBuffer, 8);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (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;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInit;
/**Initializes the CPU, AHB and APB busses clocks
*/
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(__FILE__, __LINE__);
}
/**Initializes the CPU, AHB and APB busses 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(__FILE__, __LINE__);
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/* USER CODE BEGIN 4 */
// 實現串口中斷回調函數
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(huart);
/*
// 回環測試，串口接收到數據后重新組織數據發送回去
aTxBuffer[0]=0x55;
aTxBuffer[1]=0xbb;
aTxBuffer[2]=0x17;
aTxBuffer[3]=0x38;
aTxBuffer[4]=0x37;
aTxBuffer[5]=0x36;
aTxBuffer[6]=0x35;
aTxBuffer[7]=0x34;
aTxBuffer[8]=0x33;
aTxBuffer[9]=0x32;
aTxBuffer[10]=0x31;
HAL_UART_Transmit(&huart2, (uint8_t *)aTxBuffer, 11,0xFFFF);
*/
// 功能代碼，串口接收到數據后通過USB虛擬串口發送出去。
USBD_CDC_SetTxBuffer(&hUsbDeviceFS, aRxBuffer, 8);
USBD_CDC_TransmitPacket(&hUsbDeviceFS);
HAL_UART_Receive_IT(&huart2, (uint8_t *)aRxBuffer, 8);
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param file: The file name as string.
* @param line: The line in file as a number.
* @retval None
*/
void _Error_Handler(char *file, int line)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
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