目录
一、前言
项目成品图片：
哔哩哔哩视频链接：
STM32智能果蔬保鲜系统
（资料分享见文末）
二、项目简介
1.功能详解
基于STM32的智能果蔬保鲜系统
功能如下：
- STM32单片机作为主控芯片
- 环境监测：监测温湿度，二氧化碳浓度
- 显示功能：通过OLED显示当前环境参数、模式信息
- 控制功能：系统可以控制风扇、加湿器、通风口（步进电机模拟）
- 手动模式：通过手机APP或者按键可以控制外设开关
- 自动模式：温度大于阈值开启风扇，小于阈值时关闭。湿度小于阈值开启加湿器，大于阈值时关闭，二氧化碳浓度高于阈值打开通风口，低于阈值关闭
- 报警功能：参数超过阈值蜂鸣器报警
- APP控制：机智云APP查看信息并完成控制下发
2.主要器件
- STM32F103C8T6单片机
- OLED 屏幕
- DHT11温湿度传感器
- JW01二氧化碳传感器
- 继电器
- ESP8266模块（WIFI）
- 风扇模块
- 加湿器模块
- 步进电机
三、原理图设计
四、PCB硬件设计
PCB图
五、程序设计
/**
******************************************************************************
* File Name : main.c
* Description : Main program body
******************************************************************************
** This notice applies to any and all portions of this file
* that are not between comment pairs USER CODE BEGIN and
* USER CODE END. Other portions of this file, whether
* inserted by the user or by software development tools
* are owned by their respective copyright owners.
*
* COPYRIGHT(c) 2025 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f1xx_hal.h"
/* USER CODE BEGIN Includes */
#include "hal_key.h"
#include "gizwits_product.h"
#include "common.h"
#include "dht11.h"
#include "OLED.h"
#include "motor.h"
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
TIM_HandleTypeDef htim2;
UART_HandleTypeDef huart1;
UART_HandleTypeDef huart2;
UART_HandleTypeDef huart3;
DMA_HandleTypeDef hdma_usart3_rx;
DMA_HandleTypeDef hdma_usart3_tx;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
char timerFlag_1ms = 0;
char timerFlag_10ms = 0;
char timerFlag_1000ms = 0;
char Mode = 1 ;
uint8_t Temp , Humi ;
char Set_Mode = 0;
uint8_t Temp_HIGHT=30,Temp_LOW=20;
uint8_t Humi_HIGHT=80,Humi_LOW=40;
uint16_t CO2_HIGHT =400;
uint16_t CO2_x = 0;
char Flay_num = 2;
char FLay_num_last =0 ;
u8 motor_flag;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_TIM2_Init(void);
static void MX_USART1_UART_Init(void);
static void MX_USART2_UART_Init(void);
static void MX_USART3_UART_Init(void);
static void MX_NVIC_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
void softwareTimer(void);
void openBuzzerimer(int time);
void usart3(void);
char KEY_scanf(void);
void GET_DATA(void)
{
DHT11_Read_Data(&Temp,&Humi);
usart3();
}
void Meun_Show(void)
{
//显示系统名
OLED_ShowChinese(1, 1, 0);OLED_ShowChinese(1, 2, 1);OLED_ShowChinese(1, 3, 2);OLED_ShowChinese(1, 4, 3);
OLED_ShowChinese(1, 5, 4);OLED_ShowChinese(1, 6, 5);OLED_ShowChinese(1, 7, 6);OLED_ShowChinese(1, 8, 7);
//显示“系统模式：”
OLED_ShowChinese(2, 1, 6);OLED_ShowChinese(2, 2, 7);OLED_ShowChinese(2, 3, 19);OLED_ShowChinese(2, 4, 20);
OLED_ShowChar(2, 9, ':');
//显示“温度： C”
OLED_ShowChinese(3,1,8);OLED_ShowChinese(3,2,9); OLED_ShowChinese(3,5,10);OLED_ShowChinese(3,6,9);
//显示“二氧化碳： ”
OLED_ShowChinese(4, 1, 24);OLED_ShowChinese(4, 2, 25);OLED_ShowChinese(4, 3, 26);OLED_ShowChinese(4, 4, 27);
WS_OLED_Printf(4,9,":%dppm",(CO2_x));
WS_OLED_Printf(3,5,":%dC",Temp);
WS_OLED_Printf(3,13,":%d%%",Humi);
if(Mode == 2)
{
OLED_ShowChinese(2, 6, 21);
OLED_ShowChinese(2, 7, 22);
}
else if(Mode == 1)
{
OLED_ShowChinese(2, 6, 23);
OLED_ShowChinese(2, 7, 22);
}
}
void Vol_Mode(void)
{
if(Temp>Temp_HIGHT)
{
//打开风扇
HAL_GPIO_WritePin(Feng_GPIO_Port,Feng_Pin,GPIO_PIN_SET);
}
if(Temp<Temp_LOW)
{
//关闭风扇
HAL_GPIO_WritePin(Feng_GPIO_Port,Feng_Pin,GPIO_PIN_RESET);
}
if(Humi>Humi_HIGHT)
{
//关闭加湿器
HAL_GPIO_WritePin(JIA_GPIO_Port,JIA_Pin,GPIO_PIN_RESET);
}
if(Humi<Humi_LOW)
{
//开启加湿器
HAL_GPIO_WritePin(JIA_GPIO_Port,JIA_Pin,GPIO_PIN_SET);
}
if(CO2_x>CO2_HIGHT)
{
//打开通风口
if(motor_flag==0)
{
Stepper_Move(1,512);
motor_flag=1;
}
}
else{
//关闭通风口
if(motor_flag==1)
{
Stepper_Move(0,512);
motor_flag=0;
}
}
}
void Set_show(void)
{
//界面标题
OLED_ShowChinese(1, 1, 17);OLED_ShowChinese(1, 2, 18);OLED_ShowChinese(1, 3, 30);OLED_ShowChinese(1, 4, 31);
OLED_ShowChinese(1, 5, 32);OLED_ShowChinese(1, 6, 33);OLED_ShowChinese(1, 7, 34);OLED_ShowChinese(1, 8, 35);
}
void Temp_set_show(void)
{
OLED_ShowString(2, 3, " ");
//显示“温度上限：”
OLED_ShowChinese(2, 3, 8);OLED_ShowChinese(2, 4, 9);OLED_ShowChinese(2, 5, 36);OLED_ShowChinese(2, 6, 37);
OLED_ShowChar(2, 11, ':');
//显示“温度下限：”
OLED_ShowChinese(3, 3, 8);OLED_ShowChinese(3, 4, 9);OLED_ShowChinese(3, 5, 38);OLED_ShowChinese(3, 6, 39);
OLED_ShowChar(3, 11, ':');
}
void Humi_set_show(void)
{
//显示“湿度上限：”
OLED_ShowChinese(2, 3 ,10);OLED_ShowChinese(2, 4, 9);OLED_ShowChinese(2, 5, 36);OLED_ShowChinese(2, 6, 37);
OLED_ShowChar(2, 11, ':');
//显示“湿度下限：”
OLED_ShowChinese(3, 3, 10);OLED_ShowChinese(3, 4, 9);OLED_ShowChinese(3, 5, 38);OLED_ShowChinese(3, 6, 39);
OLED_ShowChar(3, 11, ':');
}
void CO2_set_show(void)
{
//显示“二氧化碳：”
OLED_ShowChinese(2, 2, 24);OLED_ShowChinese(2, 3, 25);OLED_ShowChinese(2, 4, 26);OLED_ShowChinese(2, 5, 27);
OLED_ShowChar(2, 11, ':');
}
/*****二氧化碳读取*******/
//void JIAN_call (unsigned char *buffer)
//{
// if (buffer[0] == 0x2C)
// {
// CO2_x= buffer[1]+buffer[2]*256;
// }
//}
void usart3(void)
{
static char RxState = 0 ;
if (USART3_RX_STA == 1)
{
USART3_RX_STA = 0;
/*
HAL_UART_Transmit_IT(&huart3,u3NewBuffer,sizeof u3NewBuffer); 串口接收调试口
memset(u3NewBuffer, '\0', strlen((char *)u3NewBuffer)); // 清除数据
对串口进行调试的时候请关闭清楚函数 ,否者发送的数据会出现问题
使用方法：
1、将需要进行测试的串口，通过USB-TTL接入电脑打开串口助手 bps9600。
2、在串口3的uart3()函数中打开 HAL_UART_Transmit_IT 注释清除数据。
3、电脑发送数据并且查看接收的数据是否完整。
*/
switch(RxState)
{
case 0:
if(u3NewBuffer[0] ==0x2c)//头帧校验
{
RxState = 1;
// WS_OLED_Printf(1,1,"CO2");
}
else
{
memset(u3NewBuffer, '\0', strlen((char *)u3NewBuffer)); // 清除数据
}
break;
case 1:
if(u3NewBuffer[5] == (uint8_t)(u3NewBuffer[0] + u3NewBuffer[1]+ u3NewBuffer[2] + u3NewBuffer[3] + u3NewBuffer[4])) //验证接收到的数据是否正确
{
RxState = 0;
CO2_x = u3NewBuffer[1]*256+u3NewBuffer[2];
}
else
{
RxState = 0;
}
}
}
}
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
char key_NUM = 0 ;
static char operation = 0 ;
static char flay=0,flay_1=0,flay_2=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 */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_TIM2_Init();
MX_USART1_UART_Init();
MX_USART2_UART_Init();
MX_USART3_UART_Init();
/* Initialize interrupts */
MX_NVIC_Init();
/* USER CODE BEGIN 2 */
timerInit();
uartInit();
userInit();
gizwitsInit();
OLED_Init();
OLED_Clear();
CZL_USART_UART_Init(huart3);//uart3串口初始化,开启DMA接收
gizwitsSetMode(WIFI_AIRLINK_MODE);
GIZWITS_LOG("MCU Init Success , SoftVersion = %s\r\n",SOFTWARE_VERSION);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
key_NUM = KEY_scanf();
// 数据读取
if(timerFlag_1ms != 0 )
{
timerFlag_1ms = 0;
GET_DATA();
if(Mode == 1)//自动模式
{
Vol_Mode(); // 上电默认为自动模式
}
softwareTimer();
}
/******这个延时不要去掉，数据读取的缓冲作用！！！***********/
if(timerFlag_10ms != 0)
{
timerFlag_10ms = 0;
}
//刷新屏幕
if(timerFlag_1000ms != 0)
{
timerFlag_1000ms = 0;
if(Mode < 3)
{
Meun_Show();
}
}
if(key_NUM > 0)
{
if(key_NUM == 1)
{
Mode++;
if(Mode >3)
{
if(flay_2==0)
{
flay_2=~flay_2;
OLED_Clear();
}
flay=~flay;
flay_1=~flay_1;
flay_2=~flay_2;
Mode =1;
Set_Mode =0;
}
}
if(Mode == 2)//手动模式
{
if (flay == 0)
{
flay=~flay;
OLED_Clear();
}
if(key_NUM ==4)
{
operation ++;
if(operation>2)
{
operation=0;
}
}
if(operation == 0)
{
if(key_NUM ==2)
{
//打开风扇
HAL_GPIO_WritePin(Feng_GPIO_Port,Feng_Pin,GPIO_PIN_SET);
}
if(key_NUM ==3)
{
//关闭风扇
HAL_GPIO_WritePin(Feng_GPIO_Port,Feng_Pin,GPIO_PIN_RESET);
}
}
if(operation ==1)
{
if(key_NUM ==2)
{
//打开电机
Stepper_Move(1,512);
}
if(key_NUM ==3)
{
//关闭电机
Stepper_Move(0,512);
}
}
if(operation ==2)
{
if(key_NUM ==2)
{
//打开加湿器
HAL_GPIO_WritePin(JIA_GPIO_Port,JIA_Pin,GPIO_PIN_SET);
}
if(key_NUM ==3)
{
//关闭加湿器
HAL_GPIO_WritePin(JIA_GPIO_Port,JIA_Pin,GPIO_PIN_RESET);
}
}
}
if(Mode ==3) //设置值模式
{
// OLED_ShowChar(2,1,'>'); //光标
if(flay_1==0)
{
flay_1=~flay_1;
OLED_Clear();
}
if(key_NUM == 4)
{
Set_Mode++;
if(Set_Mode>4)
{
Set_Mode =0;
}
}
if(Set_Mode ==0)
{
if(key_NUM ==2)
{
Temp_HIGHT++;
}
if(key_NUM ==3)
{
Temp_HIGHT--;
}
Temp_set_show();
OLED_ShowChar(2,2,'>');
WS_OLED_Printf(2,12,"%d ",Temp_HIGHT);
WS_OLED_Printf(3,12,"%d ",Temp_LOW);
}
if(Set_Mode ==1)
{
if(key_NUM ==2)
{
Temp_LOW++;
}
if(key_NUM ==3)
{
Temp_LOW--;
}
Temp_set_show();
OLED_ShowChar(2,2,' '); //清除上一个光标的位置
OLED_ShowChar(3,2,'>');
WS_OLED_Printf(2,12,"%d ",Temp_HIGHT);
WS_OLED_Printf(3,12,"%d ",Temp_LOW);
// Humi_set_show();
}
if(Set_Mode ==2)
{
if(key_NUM ==2)
{
Humi_HIGHT++;
}
if(key_NUM ==3)
{
Humi_HIGHT--;
}
Humi_set_show();
OLED_ShowChar(3,2,' ');//清除上一个光标的位置
OLED_ShowChar(2,2,'>');
WS_OLED_Printf(2,12,"%d ",Humi_HIGHT);
WS_OLED_Printf(3,12,"%d ",Humi_LOW);
}
if(Set_Mode ==3)
{
if(key_NUM ==2)
{
Humi_LOW++;
}
if(key_NUM ==3)
{
Humi_LOW--;
}
Humi_set_show();
OLED_ShowChar(2,2,' ');
OLED_ShowChar(3,2,'>');
WS_OLED_Printf(2,12,"%d ",Humi_HIGHT);
WS_OLED_Printf(3,12,"%d ",Humi_LOW);
}
if(Set_Mode==4)
{
if(key_NUM ==2)
{
CO2_HIGHT++;
}
if(key_NUM ==3)
{
CO2_HIGHT--;
}
CO2_set_show();
WS_OLED_Printf(2,12,"%d ",CO2_HIGHT);
WS_OLED_Printf(3,2," ");
}
// OLED_ShowChar(Flay_num,1,'>');
Set_show(); //设置界面
}
openBuzzerimer(1);
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
userHandle();
gizwitsHandle((dataPoint_t *)¤tDataPoint);
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
/**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__);
}
/**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);
}
/** NVIC Configuration
*/
static void MX_NVIC_Init(void)
{
/* TIM2_IRQn interrupt configuration */
HAL_NVIC_SetPriority(TIM2_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(TIM2_IRQn);
/* USART2_IRQn interrupt configuration */
HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART2_IRQn);
}
/* TIM2 init function */
static void MX_TIM2_Init(void)
{
TIM_ClockConfigTypeDef sClockSourceConfig;
TIM_MasterConfigTypeDef sMasterConfig;
htim2.Instance = TIM2;
htim2.Init.Prescaler = 7200-1;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 10-1;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* USART1 init function */
static void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* USART2 init function */
static void MX_USART2_UART_Init(void)
{
huart2.Instance = USART2;
huart2.Init.BaudRate = 9600;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
huart2.Init.Mode = UART_MODE_TX_RX;
huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart2.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart2) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/* USART3 init function */
static void MX_USART3_UART_Init(void)
{
huart3.Instance = USART3;
huart3.Init.BaudRate = 9600;
huart3.Init.WordLength = UART_WORDLENGTH_8B;
huart3.Init.StopBits = UART_STOPBITS_1;
huart3.Init.Parity = UART_PARITY_NONE;
huart3.Init.Mode = UART_MODE_TX_RX;
huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart3.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart3) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
}
/**
* Enable DMA controller clock
*/
static void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA1_CLK_ENABLE();
/* DMA interrupt init */
/* DMA1_Channel2_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel2_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel2_IRQn);
/* DMA1_Channel3_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
__HAL_AFIO_REMAP_SWJ_NOJTAG();
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, BUZZ_Pin|MOTOR_A_Pin|MOTOR_B_Pin|MOTOR_D_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOB, OLED_SDA_Pin|Feng_Pin|JIA_Pin|MOTOR_C_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(OLED_SCL_GPIO_Port, OLED_SCL_Pin, GPIO_PIN_SET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(DHT11_GPIO_Port, DHT11_Pin, GPIO_PIN_SET);
/*Configure GPIO pins : BUZZ_Pin DHT11_Pin MOTOR_A_Pin MOTOR_B_Pin
MOTOR_D_Pin */
GPIO_InitStruct.Pin = BUZZ_Pin|DHT11_Pin|MOTOR_A_Pin|MOTOR_B_Pin
|MOTOR_D_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pins : OLED_SDA_Pin OLED_SCL_Pin Feng_Pin JIA_Pin
MOTOR_C_Pin */
GPIO_InitStruct.Pin = OLED_SDA_Pin|OLED_SCL_Pin|Feng_Pin|JIA_Pin
|MOTOR_C_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pins : K4_Pin K3_Pin K2_Pin K1_Pin */
GPIO_InitStruct.Pin = K4_Pin|K3_Pin|K2_Pin|K1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLUP;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
char KEY_scanf(void)
{
uint8_t KeyNum = 0;
if (HAL_GPIO_ReadPin(GPIOB, K1_Pin) == 0)
{
HAL_Delay(20);
while (HAL_GPIO_ReadPin(GPIOB, K1_Pin) == 0);
HAL_Delay(20);
KeyNum = 1;
}
if (HAL_GPIO_ReadPin(GPIOB, K2_Pin) == 0)
{
HAL_Delay(20);
while (HAL_GPIO_ReadPin(GPIOB, K2_Pin) == 0);
HAL_Delay(20);
KeyNum = 2;
}
if (HAL_GPIO_ReadPin(GPIOB, K3_Pin) == 0)
{
HAL_Delay(20);
while (HAL_GPIO_ReadPin(GPIOB, K3_Pin) == 0);
HAL_Delay(20);
KeyNum = 3;
}
if (HAL_GPIO_ReadPin(GPIOB, K4_Pin) == 0)
{
HAL_Delay(20);
while (HAL_GPIO_ReadPin(GPIOB, K4_Pin) == 0);
HAL_Delay(20);
KeyNum = 4;
}
return KeyNum;
}
void softwareTimer_IRQ(void) // 1ms定时中断
{
static char count_10ms = 0;
static int count_1000ms = 0;
if (++count_10ms == 10)
{
count_10ms = 0;
timerFlag_10ms = 1;
}
if (++count_1000ms == 100)
{
count_1000ms = 0;
timerFlag_1000ms = 1;
}
timerFlag_1ms = 1;
}
int buzzerTimerCount = 0;
// 控制蜂鸣器打开时间的函数
// time: 打开时间，单位MS
void openBuzzerimer(int time)
{
HAL_GPIO_WritePin(BUZZ_GPIO_Port,BUZZ_Pin,GPIO_PIN_SET) ;
buzzerTimerCount = time ;
}
// 软件定时器 ， 定时调用，间隔1MS
void softwareTimer(void)
{
if(buzzerTimerCount > 0)
{
if( -- buzzerTimerCount == 0)
{
HAL_GPIO_WritePin(BUZZ_GPIO_Port,BUZZ_Pin,GPIO_PIN_RESET) ;
}
}
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @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
/**
* @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
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
六、实验效果
七、资料内容
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