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目录
一、主要功能
二、硬件资源
三、程序编程
四、实现现象
一、主要功能
基于STM32F103C8T6 采用DHT11读取温度、滑动变阻器模拟读取电流、电压。
通过OLED屏幕显示，设置电流阈值为80，电流小阈值为50，电压阈值为60，温度阈值为30
随便哪个超过预祝，则继电器切断，LED灯灭掉，若电流小于50，则屏幕清屏，表示待机。
二、硬件资源
基于KEIL5编写C++代码，PROTEUS8.15进行仿真，全部资源在页尾，提供安装包。
三、程序编程
#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); //监测函数
void Display_function(void); //显示函数
void Manage_function(void); //处理函数#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的个数
uint32_t adc_buf[4]; //adc数值的存储数组uint16_t temp,humi; //温湿度
uint16_t dl,dy,wdnum; //电流 电压 温度
uint16_t dlmin=50,dlmax=80,dymax=60,wdmax=300; //电流最小50 最大80 电压最大60 温度最大30
uint8_t flag_led,flag_beep; //灯、报警标志位
uint16_t time_num;
static int mode=0;
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);uint16_t dong_get_adc(){//开启ADC1HAL_ADC_Start(&hadc1);//等待ADC转换完成，超时为100msHAL_ADC_PollForConversion(&hadc1,100);//判断ADC是否转换成功if(HAL_IS_BIT_SET(HAL_ADC_GetState(&hadc1),HAL_ADC_STATE_REG_EOC)){//读取值return HAL_ADC_GetValue(&hadc1);}return 0;
}/****
*******监测函数
*****/
void Monitor_function(void)
{DHT11_Read_TempAndHumidity(&DHT11_Data);//调用获取温湿度、电流、电压temp = DHT11_Data.temperature; //获取温度humi = DHT11_Data.humidity; //获取湿度//将获取的值存储到adc_buf中for(adc_ch=0;adc_ch<4;adc_ch++){//分别存放通道1、2、3、4的ADC值adc_buf[adc_ch]=dong_get_adc();}dl=adc_buf[0]/4096.00*100; //电流dy=adc_buf[3]/4096.00*100; //电压}/****
*******显示函数
*****/
void Display_function(void)
{//第一行Oled_ShowCHinese(0,0,"电流");Oled_ShowString(32,0,":");OLED_ShowNum(40,0,dl,2,16);Oled_ShowCHinese(64,0,"电压");Oled_ShowString(96,0,":");OLED_ShowNum(104,0,dy,2,16);//第二行Oled_ShowCHinese(0,2,"温度"); Oled_ShowString(32,2,":");OLED_Show_Temp(40,2,temp);//第三行
// Oled_ShowCHinese(0,4,"湿度");
// Oled_ShowString(32,4,":");
// OLED_Show_Humi(40,4,humi/10);}/****
*******处理函数
*****/
void Manage_function(void)
{if(dl > dlmax) //电流超过电流MAX {flag_led=0;flag_beep=1;}if(dy> dymax ) //电压大于电压MAX{flag_led=0;flag_beep=1;}if(temp>wdmax) //温度大于温度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口设置MX_ADC1_Init(); //ADC转换OLED_Init(); //OLED初始化OLED_Clear(); //OLED清屏flag_led = 0;while (1){if(mode == 0){Monitor_function(); //监测函数Display_function(); //显示函数Manage_function(); //处理函数}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、实现现象
具体动态效果看B站演示视频：
基于STM32的温度、电流、电压检测系统（OLED、DHT11、继电器、电机）_哔哩哔哩_bilibili
全部资料（源程序、仿真文件、安装包、演示视频）：
通过百度网盘分享的文件：基于STM32的温度、电流、电压检测系统(1).zip
链接：https://pan.baidu.com/s/1h93-TTKkkdf2hBryU9v55Q?pwd=p4sq
提取码：p4sq
--来自百度网盘超级会员V4的分享