#第九届立创电赛#温湿度检测仪

注：* 为必填项

请在报名阶段填写 ↓

 

* 1、项目功能介绍

温湿度检测仪是传感器将测量到的温度和湿度信号转换为电信号，经过电路处理（如稳压滤波、运算放大、非线性校正等），最终输出与温度和湿度成线性关系的电流信号或电压信号，或者直接通过主控芯片进行数字输出的一种电子仪器，在日常生活中广泛应用，可用于气象判断，环境检测，环保等方面。

 

 

 

*2、项目属性

---

电子设计类项目，未参加过比赛，新手挑战。

 

 

 

* 3、开源协议

---

本温湿度检测仪，主要用于环境温度和湿度的感应检测，以STM32G030K6T6芯片为主控芯片，盛思锐温湿度传感器为主要检测模块，SN74HC595PMR芯片为辅组芯片，数码管显示，电池供电，盛思锐传感器负责采集环境的温湿度信息，再通过电路以电信号的形式传给主控芯片，芯片通过烧录的代码而控制各个部分实现自己的功能，芯片对传入的信息进行处理运算，再通过控制595芯片，从而控制数码的IO，完成电信号到数字信息的转换，输出温度和湿度，完成功能。

本代码和硬件可供分享。

开源协议：https://opensource.org/licenses/GPL-3.0

 

 

 

请在竞赛阶段填写 ↓

 

*4、硬件部分

---

此温湿度检测仪原理并不复杂，采用STM32G030K6T6芯片主控，SN74HC595PMR芯片辅助控制显示屏显示实时的温度和湿度，用盛思锐传感器为温湿度的感应器，将环境温度湿度转化为电信号的方式输入芯片，经过芯片里面已经烧录的代码对电信号进行处理运算，再输出给辅助的芯片，控制显示屏的IO输入高低电平，从而以数字的形式输出温度和湿度。在制作过程中要一步一步地调试代码，确保每一步都没有错，切不可一次将代码全部完成后一起输进去，否则将无法判断问题，同时，焊接不出错是成功的前提，主控芯片虚焊或焊接在一起，将会无法烧录代码，芯片无法被识别到，代码要注意写在BINGEN的后面，防止丢失，注意有些需要宏定义，最后即可完成作品。

 

 

 

*5、软件部分

---

main.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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 "adc.h"
#include "i2c.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* 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 */

#define SHT40_Write (0x44<<1)           //写入地址
#define SHT40_Read  ((0x44<<1)+1)       //读出地址

/**
  * @brief  The application entry point.
  * @retval int
  */
/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
    uint16_t num = 0;
    uint8_t writeData[1] = {0xFD};
    uint8_t readData[6] = {0};
    uint16_t Temp = 0,Humi = 0;
    double Temperature = 0;
    double Humidity = 0;
  /* 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 */
    HAL_DeInit();
  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_I2C1_Init();
  /* USER CODE BEGIN 2 */
    //使数码管全部熄灭
  HAL_Delay(100);
  SN74HC595_Send_Data(SN_DIG,0x00);
  SN74HC595_Send_Data(SN_LED1,0x00);
  SN74HC595_Send_Data(SN_LED2,0x00);
    HAL_Delay(100);
    HAL_I2C_Master_Transmit(&hi2c1, (uint16_t)SHT40_Write, (uint8_t *)writeData, 1, HAL_MAX_DELAY);
    HAL_Delay(10);
    HAL_I2C_Master_Receive(&hi2c1, (uint16_t)SHT40_Read, (uint8_t *)readData, 6, HAL_MAX_DELAY);
    
    Temperature = (1.0 * 175 * (readData[0] * 256 + readData[1])) / 65535.0 - 45;
    Humidity = (1.0 * 125 * (readData[3] * 256 + readData[4])) / 65535.0 - 6.0;
    
    Temp = (uint16_t)(Temperature * 10);
    Humi = (uint16_t)(Humidity * 10);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */
    /* USER CODE BEGIN 3 */
        num++;
        if(num < 100)
        {
            ShowNum(1,1,Temp/100);
            ShowNum(1,2,Temp/ 10 % 10);
            ShowNum(1,3,Temp%10);
        }
        else if(num < 200)
        {
            ShowNum(2,1,Humi/100);
            ShowNum(2,2,Humi/ 10 % 10);
            ShowNum(2,3,Humi%10);
        }
        else{
            num = 0;
            ShowNum(1,1,Temp/100);
            ShowNum(1,2,Temp/ 10 % 10);
            ShowNum(1,3,Temp%10);
        }
  }
  /* USER CODE END 3 */
}
/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);

  /** 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.HSIDiv = RCC_HSI_DIV1;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1;
  RCC_OscInitStruct.PLL.PLLN = 8;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
  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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = 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 */

 

gpio.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    gpio.c
  * @brief   This file provides code for the configuration
  *          of all used GPIO pins.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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 "gpio.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/*----------------------------------------------------------------------------*/
/* Configure GPIO                                                             */
/*----------------------------------------------------------------------------*/
/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/** Configure pins as
        * Analog
        * Input
        * Output
        * EVENT_OUT
        * EXTI
*/
void MX_GPIO_Init(void)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOB_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOA, LED2_SER_Pin|LED2_RCLK_Pin|LED2_SCLK_Pin|DIG_SER_Pin
                          |DIG_RCLK_Pin|DIG_SCLK_Pin|LED1_RCLK_Pin|LED1_SCLK_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, LED1_SER_Pin|GPIO_PIN_7, GPIO_PIN_RESET);

  /*Configure GPIO pins : PAPin PAPin PAPin PAPin
                           PAPin PAPin PAPin PAPin */
  GPIO_InitStruct.Pin = LED2_SER_Pin|LED2_RCLK_Pin|LED2_SCLK_Pin|DIG_SER_Pin
                          |DIG_RCLK_Pin|DIG_SCLK_Pin|LED1_RCLK_Pin|LED1_SCLK_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

  /*Configure GPIO pin : PtPin */
  GPIO_InitStruct.Pin = LED1_SER_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(LED1_SER_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pin : PB5 */
  GPIO_InitStruct.Pin = GPIO_PIN_5;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /*Configure GPIO pin : PB7 */
  GPIO_InitStruct.Pin = GPIO_PIN_7;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

  /* EXTI interrupt init*/
  HAL_NVIC_SetPriority(EXTI4_15_IRQn, 1, 0);
  HAL_NVIC_EnableIRQ(EXTI4_15_IRQn);

}

/* USER CODE BEGIN 2 */

/*
    函数内容：打开LED
    函数参数：无
    返回值：无
*/
void Open_Led(void)    
{
    //输出低电平
    HAL_GPIO_WritePin(GPIOB,GPIO_PIN_7,GPIO_PIN_RESET);
}
/*
    函数内容：关闭LED
    函数参数：无
    返回值：无
*/
void Close_Led(void)
{
    //输出高电平
    HAL_GPIO_WritePin(GPIOB,GPIO_PIN_7,GPIO_PIN_SET);
}
/*
    函数内容：翻转LED
    函数参数：无
    返回值：无
*/
void Toggle_LED(void)
{
    //翻转电平
    HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_7);
}

/*
    函数内容：扫描按键
    函数参数：无
    返回值：无
*/

void Scanf_GPIO_PIN(void)
{
    if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_5) == RESET)
    {
        HAL_Delay(20);
        if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_5) == RESET)
        {
            while(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_5) == RESET);
            Toggle_LED();
        }
    }

}

/*
    函数内容：GPIO下降沿中断回调函数
    函数参数：uint16_t GPIO_Pin--位号
    返回值：无
*/

void HAL_GPIO_EXTI_Falling_Callback(uint16_t GPIO_Pin)
{
  if(GPIO_Pin == GPIO_PIN_5)
  {
      if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_5) == GPIO_PIN_RESET)
      {
          Toggle_LED();
      }
  }
}

uint16_t sgh_value[11]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x80};

void SN74HC595_Send_Data(unsigned char sn_num,unsigned int sendValue)
{
    uint8_t i = 0;
    if(sn_num == SN_LED1)    //第一个数码管
    {
        for(i = 0;i < 8;i++)
        {
            if(((sendValue << i)&0x80)!=0)    //如果数据第一位是1
            {
                HAL_GPIO_WritePin(LED1_SER_GPIO_Port,LED1_SER_Pin,GPIO_PIN_SET);        //高电平
            }
            else
            {
                HAL_GPIO_WritePin(LED1_SER_GPIO_Port,LED1_SER_Pin,GPIO_PIN_RESET);    //低电平
            }
            HAL_GPIO_WritePin(LED1_SCLK_GPIO_Port,LED1_SCLK_Pin,GPIO_PIN_RESET);    //产生一个SCLK上升沿
            HAL_GPIO_WritePin(LED1_SCLK_GPIO_Port,LED1_SCLK_Pin,GPIO_PIN_SET);
            }
        HAL_GPIO_WritePin(LED1_RCLK_GPIO_Port,LED1_RCLK_Pin,GPIO_PIN_RESET);    //产生一个RCLK上升沿
        HAL_GPIO_WritePin(LED1_RCLK_GPIO_Port,LED1_RCLK_Pin,GPIO_PIN_SET);
    }
    else if(sn_num == SN_LED2)
    {
        for(i = 0;i < 8;i++)
        {
            if(((sendValue << i)&0x80)!=0)
            {
                HAL_GPIO_WritePin(LED2_SER_GPIO_Port,LED2_SER_Pin,GPIO_PIN_SET);
            }
            else
            {
                HAL_GPIO_WritePin(LED2_SER_GPIO_Port,LED2_SER_Pin,GPIO_PIN_RESET);
            }
            HAL_GPIO_WritePin(LED2_SCLK_GPIO_Port,LED2_SCLK_Pin,GPIO_PIN_RESET);
            HAL_GPIO_WritePin(LED2_SCLK_GPIO_Port,LED2_SCLK_Pin,GPIO_PIN_SET);
            }
        HAL_GPIO_WritePin(LED2_RCLK_GPIO_Port,LED2_RCLK_Pin,GPIO_PIN_RESET);
        HAL_GPIO_WritePin(LED2_RCLK_GPIO_Port,LED2_RCLK_Pin,GPIO_PIN_SET);    
    }
    else if(sn_num == SN_DIG)
    {
        for(i = 0;i < 8;i++)
        {
            if(((sendValue << i)&0x80)!=0)
            {
                HAL_GPIO_WritePin(DIG_SER_GPIO_Port,DIG_SER_Pin,GPIO_PIN_SET);
            }
            else
            {
                HAL_GPIO_WritePin(DIG_SER_GPIO_Port,DIG_SER_Pin,GPIO_PIN_RESET);
            }
            HAL_GPIO_WritePin(DIG_SCLK_GPIO_Port,DIG_SCLK_Pin,GPIO_PIN_RESET);
            HAL_GPIO_WritePin(DIG_SCLK_GPIO_Port,DIG_SCLK_Pin,GPIO_PIN_SET);
            }
        HAL_GPIO_WritePin(DIG_RCLK_GPIO_Port,DIG_RCLK_Pin,GPIO_PIN_RESET);
        HAL_GPIO_WritePin(DIG_RCLK_GPIO_Port,DIG_RCLK_Pin,GPIO_PIN_SET);    
    }
}

void ShowNum(uint8_t row, uint8_t column, uint8_t value)
{
    if(row == 1)
    {
        switch(column)
        {
            case 1:    //如果是第一排第一个
                    SN74HC595_Send_Data(SN_DIG,0xFE);
                    SN74HC595_Send_Data(SN_LED1,sgh_value[value]);//显示值对应16进制数
                break;
            case 2:
                    SN74HC595_Send_Data(SN_DIG,0xFD);
                    SN74HC595_Send_Data(SN_LED1,(sgh_value[value]|0x80));
                break;
            case 3:
                    SN74HC595_Send_Data(SN_DIG,0xFB);
                    SN74HC595_Send_Data(SN_LED1,sgh_value[value]);
                break;
            default:
                break;
        }
        SN74HC595_Send_Data(SN_LED1,0x00);    //消影，防止错位
    }
    else
    {
        switch(column)
        {
            case 1:
                    SN74HC595_Send_Data(SN_DIG,0xF7);
                    SN74HC595_Send_Data(SN_LED2,sgh_value[value]);
                break;
            case 2:
                    SN74HC595_Send_Data(SN_DIG,0xEF);
                    SN74HC595_Send_Data(SN_LED2,(sgh_value[value]|0x80));
                break;
            case 3:
                    SN74HC595_Send_Data(SN_DIG,0xDF);
                    SN74HC595_Send_Data(SN_LED2,sgh_value[value]);
                break;
            default:
                break;
        }
        SN74HC595_Send_Data(SN_LED2,0x00);
    }
}

/* USER CODE END 2 */

 

gpio.h

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file    gpio.h
  * @brief   This file contains all the function prototypes for
  *          the gpio.c file
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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 */
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __GPIO_H__
#define __GPIO_H__

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* USER CODE BEGIN Private defines */

#define SN_LED1 0x01
#define SN_LED2 0x02
#define SN_DIG 0x03

/* USER CODE END Private defines */

void MX_GPIO_Init(void);

/* USER CODE BEGIN Prototypes */

void Open_Led(void);
void Close_Led(void);
void Toggle_LED(void);
void Scanf_GPIO_PIN(void);
void SN74HC595_Send_Data(unsigned char sn_num,unsigned int sendValue);
void ShowNum(uint8_t row, uint8_t column, uint8_t value);
void Get_TemperatureHumidity(float *Temperature,float *Humidity);
/* USER CODE END Prototypes */

#ifdef __cplusplus
}
#endif
#endif /*__ GPIO_H__ */

 

ic2.c

/* USER CODE BEGIN 1 */

void Get_TemperatureHumidity(float *Temperature,float *Humidity)
{
    uint8_t writeData[1] = {0xFD};
    uint8_t readData[6] = {0};
    HAL_Delay(100);
    HAL_I2C_Master_Transmit(&hi2c1, (uint16_t)SHT40_Write, (uint8_t *)writeData, 1, HAL_MAX_DELAY);
    HAL_Delay(10);
    HAL_I2C_Master_Receive(&hi2c1, (uint16_t)SHT40_Read, (uint8_t *)readData, 6, HAL_MAX_DELAY);
    *Temperature = (1.0 * 175 * (readData[0] * 256 + readData[1])) / 65535.0 - 45;
    *Humidity = (1.0 * 125 * (readData[3] * 256 + readData[4])) / 65535.0 - 6.0;
}

/* USER CODE END 1 */

注：若您的项目涉及软件开发，请在附件上传对应的工程源码。这里可以详细说明您的软件流程图、功能模块框图、相关算法的解释或科普、源码结构、编译环境的搭建和配置、源码编译方法、程序烧录方法等。推荐图文并茂的形式向别人介绍您的想法。

 

*6、BOM清单

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*7、大赛LOGO验证

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* 8、演示您的项目并录制成视频上传

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