目錄

一、主要功能

二、硬件資源

三、程序編程

四、實現(xiàn)現(xiàn)象

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一、主要功能

基于STM32F103C8T6 采用DHT11讀取溫度、滑動變阻器模擬讀取電流、電壓。
通過OLED屏幕顯示，設(shè)置電流閾值為80，電流小閾值為50，電壓閾值為60，溫度閾值為30
隨便哪個超過預(yù)祝，則繼電器切斷，LED燈滅掉，若電流小于50，則屏幕清屏，表示待機。

二、硬件資源

基于KEIL5編寫C++代碼，PROTEUS8.15進行仿真，全部資源在頁尾，提供安裝包。

三、程序編程

#include "main.h"
#include "adc.h"
#include "gpio.h"#include "./HAL/key/key.h"
#include "./HAL/OLED/OLED_NEW.H"
#include "./HAL/dht11/dht11.h"void Monitor_function(void);						//監(jiān)測函數(shù)
void Display_function(void);						//顯示函數(shù)
void Manage_function(void);							//處理函數(shù)#define LED(a) (a?HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET):HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET)) #define BEEP(a) (a?HAL_GPIO_WritePin(BEEP_GPIO_Port, BEEP_Pin, GPIO_PIN_RESET):HAL_GPIO_WritePin(BEEP_GPIO_Port, BEEP_Pin, GPIO_PIN_SET)) uint8_t adc_ch;   										//adc的個數(shù)
uint32_t adc_buf[4];									//adc數(shù)值的存儲數(shù)組uint16_t temp,humi;										//溫濕度
uint16_t dl,dy,wdnum;						//電流 電壓  溫度
uint16_t dlmin=50,dlmax=80,dymax=60,wdmax=300;			 //電流最小50 最大80 電壓最大60 溫度最大30
uint8_t flag_led,flag_beep;						//燈、報警標志位
uint16_t time_num;
static int mode=0; 
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);uint16_t dong_get_adc(){//開啟ADC1HAL_ADC_Start(&hadc1);//等待ADC轉(zhuǎn)換完成，超時為100msHAL_ADC_PollForConversion(&hadc1,100);//判斷ADC是否轉(zhuǎn)換成功if(HAL_IS_BIT_SET(HAL_ADC_GetState(&hadc1),HAL_ADC_STATE_REG_EOC)){//讀取值return HAL_ADC_GetValue(&hadc1);}return 0;
}/****
*******監(jiān)測函數(shù)
*****/
void Monitor_function(void)
{DHT11_Read_TempAndHumidity(&DHT11_Data);//調(diào)用獲取溫濕度、電流、電壓temp = DHT11_Data.temperature; 					//獲取溫度humi = DHT11_Data.humidity;    					//獲取濕度//將獲取的值存儲到adc_buf中for(adc_ch=0;adc_ch<4;adc_ch++){//分別存放通道1、2、3、4的ADC值adc_buf[adc_ch]=dong_get_adc();}dl=adc_buf[0]/4096.00*100;  //電流dy=adc_buf[3]/4096.00*100;  //電壓}/****
*******顯示函數(shù)
*****/
void Display_function(void)
{//第一行Oled_ShowCHinese(0,0,"電流");Oled_ShowString(32,0,":");OLED_ShowNum(40,0,dl,2,16);Oled_ShowCHinese(64,0,"電壓");Oled_ShowString(96,0,":");OLED_ShowNum(104,0,dy,2,16);//第二行Oled_ShowCHinese(0,2,"溫度");  Oled_ShowString(32,2,":");OLED_Show_Temp(40,2,temp);//第三行
//			Oled_ShowCHinese(0,4,"濕度");
//			Oled_ShowString(32,4,":");
//			OLED_Show_Humi(40,4,humi/10);}/****
*******處理函數(shù)
*****/
void Manage_function(void)
{if(dl > dlmax)					//電流超過電流MAX {flag_led=0;flag_beep=1;}if(dy> dymax )								//電壓大于電壓MAX{flag_led=0;flag_beep=1;}if(temp>wdmax)   //溫度大于溫度MAX{flag_led=0;flag_beep=1;}if(dl>dlmin && dl < dlmax && dy < dymax  && temp < wdmax){flag_led=1;flag_beep=0;}if(dl<dlmin){mode = 1;}if(flag_beep==1)BEEP(1);elseBEEP(0);if(flag_led==1)LED(1);elseLED(0);
}/* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
int main(void)
{HAL_Init();SystemClock_Config();MX_GPIO_Init();  //GPIO口設(shè)置MX_ADC1_Init();  //ADC轉(zhuǎn)換OLED_Init();									//OLED初始化OLED_Clear();									//OLED清屏flag_led = 0;while (1){if(mode == 0){Monitor_function();					//監(jiān)測函數(shù)Display_function();					//顯示函數(shù)Manage_function();					//處理函數(shù)}else{OLED_Clear();									//OLED清屏}HAL_Delay(10);time_num++;if(time_num >= 5000)time_num = 0;}
}/*** @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;RCC_OscInitStruct.HSIState = RCC_HSI_ON;RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI_DIV2;RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL4;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_0) != HAL_OK){Error_Handler();}PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV2;if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != 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 */

四、實現(xiàn)現(xiàn)象

具體動態(tài)效果看B站演示視頻：

基于STM32的溫度、電流、電壓檢測系統(tǒng)（OLED、DHT11、繼電器、電機）_嗶哩嗶哩_bilibili

全部資料（源程序、仿真文件、安裝包、演示視頻）：

通過百度網(wǎng)盤分享的文件：基于STM32的溫度、電流、電壓檢測系統(tǒng)(1).zip
鏈接：https://pan.baidu.com/s/1h93-TTKkkdf2hBryU9v55Q?pwd=p4sq?
提取碼：p4sq?
--來自百度網(wǎng)盤超級會員V4的分享