温湿度在oled屏显示）"/>
STM32—项目三（温湿度在oled屏显示）
目录
一、oled屏
二、DHT11温湿度传感器
三、实验
1.接线
2.配置
3.代码
1.main.c代码
2.oledfont.h头文件（需添加）
3.oled.c文件（需添加）
4.oled.h文件（需添加）
四、工程添加.c和.h文件可以参考
一、oled屏
可参考STM32—IIC详解入门（oled屏显示字）_wlkq~的博客-CSDN博客
上面链接为硬件IIC，下面代码是软件IIC
部分代码（oled相关代码）
void delay_us(uint32_t us)//微妙延时
{uint32_t delay = (HAL_RCC_GetHCLKFreq() / 4000000 * us);while (delay--){;}
}void iic_Start(void)//起始信号
{SCL_LOW;SDA_HIGH;SCL_HIGH;delay_us(5);SDA_LOW;delay_us(5);}void iic_Stop(void)//终止信号
{SCL_HIGH;SDA_LOW;delay_us(5);SDA_HIGH;delay_us(5);
}//应答
void iic_Ack()
{SDA_LOW; //虚拟应答，因为OLEd屏幕坏了无应答，所以无需读引脚SCL_HIGH; SCL_LOW;}//iic发送一字节数据
void IIC_send_byte(uint8_t data)
{SCL_LOW;for(uint8_t i=0;i<8;i++){ if(data & 0x80){SDA_HIGH;}else{SDA_LOW;}SCL_HIGH;SCL_LOW;data = data<< 1; /* 将下一位移至最高位 */}}//OLED写指令
void oledWriteCmd(unsigned char writeCmd)
{iic_Start();IIC_send_byte(0x78); iic_Ack();IIC_send_byte(0x00); iic_Ack();IIC_send_byte(writeCmd);iic_Ack();iic_Stop();
}//写数据
void Oled_Write_Data(unsigned char writedata)
{iic_Start();//IIC_send_byte(0x78); iic_Ack();IIC_send_byte(0x40); iic_Ack();IIC_send_byte(writedata);iic_Ack();iic_Stop();
}//OLED清屏
void olceClean()
{int i,j;for(i=0;i<8;i++){oledWriteCmd(0xB0 + i); //选择PAGEoledWriteCmd(0x00); //选择列oledWriteCmd(0x10);for(j = 0;j < 128; j++){Oled_Write_Data(0); //写入字符0}}
}//OLCD初始化
void oledInit(void)
{HAL_Delay(500);oledWriteCmd(0xAE);oledWriteCmd(0x00);oledWriteCmd(0x10);oledWriteCmd(0x40);oledWriteCmd(0xB0);oledWriteCmd(0x81);oledWriteCmd(0xFF);oledWriteCmd(0xA1);oledWriteCmd(0xA6);oledWriteCmd(0xA8);oledWriteCmd(0x3F);oledWriteCmd(0xC8);oledWriteCmd(0xD3);oledWriteCmd(0x00);oledWriteCmd(0xD5);oledWriteCmd(0x80);oledWriteCmd(0xD8);oledWriteCmd(0x05);oledWriteCmd(0xD9);oledWriteCmd(0xF1);oledWriteCmd(0xDA);oledWriteCmd(0x12);oledWriteCmd(0xDB);oledWriteCmd(0x30);oledWriteCmd(0x8D);oledWriteCmd(0x14);oledWriteCmd(0xAF);
}//以下代码厂家提供
void Oled_Show_Char(char row,char col,char oledChar){ //row*2-2unsigned int i;oledWriteCmd(0xb0+(row*2-2)); //page 0oledWriteCmd(0x00+(col&0x0f)); //lowoledWriteCmd(0x10+(col>>4)); //high for(i=((oledChar-32)*16);i<((oledChar-32)*16+8);i++){Oled_Write_Data(F8X16[i]); //写数据oledTable1}oledWriteCmd(0xb0+(row*2-1)); //page 1oledWriteCmd(0x00+(col&0x0f)); //lowoledWriteCmd(0x10+(col>>4)); //highfor(i=((oledChar-32)*16+8);i<((oledChar-32)*16+8+8);i++){Oled_Write_Data(F8X16[i]); //写数据oledTable1}
}//以下代码厂家提供
/******************************************************************************/
// 函数名称：Oled_Show_Char
// 输入参数：oledChar
// 输出参数：无
// 函数功能：OLED显示单个字符
/******************************************************************************/
void Oled_Show_Str(char row,char col,char *str){//页、列、字符串while(*str!=0){Oled_Show_Char(row,col,*str);str++;col += 8; }
}二、DHT11温湿度传感器
1.总时序图（主机信号由代码设置波形，DHT信号由DHT11发出）
2.初始化部分 检测模块是否存在（检测下图DHT响应信号有没有被拉低）
部分代码初始化
//初始化
void DHT11_Start()
{//下面是主机信号DHT_GPIO_Init(GPIO_MODE_OUTPUT_PP);//PA5设置为输出推挽模式DHT_HIGH;DHT_LOW;HAL_Delay(30);//msDHT_HIGH;DHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式//下面是DHT信号，如果符合DHT信号时序图就进行运行while(DHT_VALUE);//dht=0while(!DHT_VALUE);//dht=1while(DHT_VALUE);//之后开始传输数据//dht=0
}3.接收数据部分（有效数据都是高电平，但持续时间不一样，可通过延时后是否被拉低来判断是0还是1）
DHT11传输0的时序分析
DHT11传输1的时序分析
4.数据格式
只有一根数据线DAT，发送序列指令给DHT11模块，模块就会传输一次完整的数据为40bit（8bit湿度整数数据+8bit湿度小数数据+8bi温度整数数据+8bit温度小数数据+8bit校验）,高位先出。
部分代码数据接收
void DHT11_Read()
{int i;int j;char tmp;//移位，存放8个bitchar flag;//标志位DHT11_Start();//重启进入高速模式之后才发送bitDHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式for(i = 0;i < 5;i++){//取4个字节for(j=0;j<8;j++){//每个字节取8个bitwhile(!DHT_VALUE);//卡g点数据来会从0变成1 delay_us(40); //延时读取if(DHT_VALUE == 1){flag = 1;while(DHT_VALUE);//等待变位70us下一个bit}else{flag = 0;} tmp = tmp << 1;//左移一位或者 tmp<<=1，为了使先出来的bit到高位tmp |= flag;//可以为 tmp=tmp|flag }data[i] = tmp;//得到8个bit为一个字节，存放在数组里 }}三、实验（oled屏显示温湿度）
1.接线
oled:SCL->B5 SDA->B6 DH11:DAT->A5
2.配置
1.SYS
2.RCC
4.GPIO（全部设置为输出且输出高电平）A5既作为输入，也作为输出，则不能直接在CubeMX里配置，需要自己写代码。
3.代码
1.main.c代码
/* USER CODE BEGIN Header */
/********************************************************************************* @file : main.c* @brief : Main program body******************************************************************************* @attention** Copyright (c) 2023 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 "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "oled.h"
#include "stdio.h"/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
#define DHT_LOW HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET)
#define DHT_HIGH HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET)#define DHT_VALUE HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5)/* 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 */void DHT_GPIO_Init(uint32_t Mode)//初始化GPIO口,PA5口
{GPIO_InitTypeDef GPIO_InitStruct = {0};__HAL_RCC_GPIOA_CLK_ENABLE();//时钟GPIO_InitStruct.Pin = GPIO_PIN_5;GPIO_InitStruct.Mode = Mode;//输出还是输入GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}void DHT11_Start()
{//下面是主机信号DHT_GPIO_Init(GPIO_MODE_OUTPUT_PP);//PA5设置为输出推挽模式DHT_HIGH;DHT_LOW;HAL_Delay(30);//msDHT_HIGH;DHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式//下面是DHT信号，如果符合DHT信号时序图就进行运行while(DHT_VALUE);//dht=0while(!DHT_VALUE);//dht=1while(DHT_VALUE);//之后开始传输数据//dht=0
}uint8_t data[5];void DHT11_Read()
{int i;int j;char tmp;//移位，存放8个bitchar flag;//标志位DHT11_Start();//重启进入高速模式之后才发送bitDHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式for(i = 0;i < 5;i++){//取4个字节for(j=0;j<8;j++){//每个字节取8个bitwhile(!DHT_VALUE);//卡g点数据来会从0变成1 delay_us(40); //延时读取if(DHT_VALUE == 1){flag = 1;while(DHT_VALUE);//等待变位70us下一个bit}else{flag = 0;} tmp = tmp << 1;//左移一位或者 tmp<<=1，为了使先出来的bit到高位tmp |= flag;//可以为 tmp=tmp|flag }data[i] = tmp;//得到8个bit为一个字节，存放在数组里 }}/* USER CODE END 0 *//*** @brief The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 */char SpeedMes[16];/* 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();/* USER CODE BEGIN 2 */oledInit();//OLED初始化oledWriteCmd(0x20); //选择寻址方式oledWriteCmd(0x02); //02是页寻址、00是水平寻址、01是垂直寻址模式olceClean();//清屏/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */
while (1)
{/* USER CODE END WHILE *//* USER CODE BEGIN 3 */olceClean();DHT11_Read();sprintf(SpeedMes,"H:%d.%d",data[0], data[1]);//每一秒换一次 juli代替%d 然后将引号字符串放在数组里Oled_Show_Str(1,1,SpeedMes);sprintf(SpeedMes,"T:%d.%d",data[2], data[3]);Oled_Show_Str(2,1,SpeedMes);HAL_Delay(600);}/* USER CODE END 3 */
}/*** @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/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();}/** 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_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 */
2.oledfont.h头文件（需添加）
//
const unsigned char F8X16[]=
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 00x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 10x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 20x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 30x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 40xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 50x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 60x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 70x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 80x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 90x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 100x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 110x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 120x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 130x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 140x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 150x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 160x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 170x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 180x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 190x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 200x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 210x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 220x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 230x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 240x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 250x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 260x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 270x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 280x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 290x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 300x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 310xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 320x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 330x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 340xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 350x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 360x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 370x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 380xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 390x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 400x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 410x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 420x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 430x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 440x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 450x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 460xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 470x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 480xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 490x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 500x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 510x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 520x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 530x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 540xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 550x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 560x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 570x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 580x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 590x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 600x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 610x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 620x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 630x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 640x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 650x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 660x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 670x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 680x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 690x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 700x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 710x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 720x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 730x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 740x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 750x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 760x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 770x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 780x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 790x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 800x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 810x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 820x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 830x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 840x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 850x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 860x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 870x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 880x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 890x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 900x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 910x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 920x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 930x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
3.oled.c文件（需添加）
#include "main.h"
#include "gpio.h"
#include "oled.h"
#include "oledfont.h"void delay_us(uint32_t us)
{uint32_t delay = (HAL_RCC_GetHCLKFreq() / 4000000 * us);while (delay--){;}
}void iic_Start(void)//起始信号
{SCL_LOW;SDA_HIGH;SCL_HIGH;delay_us(5);SDA_LOW;delay_us(5);}void iic_Stop(void)//终止信号
{SCL_HIGH;SDA_LOW;delay_us(5);SDA_HIGH;delay_us(5);
}//应答
void iic_Ack()
{SDA_LOW; //虚拟应答，因为OLEd屏幕坏了无应答SCL_HIGH; SCL_LOW;}//iic发送一字节数据
void IIC_send_byte(uint8_t data)
{SCL_LOW;for(uint8_t i=0;i<8;i++){ if(data & 0x80){SDA_HIGH;}else{SDA_LOW;}SCL_HIGH;SCL_LOW;data = data<< 1; /* 将下一位移至最高位 */}//SCL_HIGH; /* 发送完成，释放数据线*/
}//OLED写指令
void oledWriteCmd(unsigned char writeCmd)
{iic_Start();IIC_send_byte(0x78); iic_Ack();IIC_send_byte(0x00); iic_Ack();IIC_send_byte(writeCmd);iic_Ack();iic_Stop();
}//写数据
void Oled_Write_Data(unsigned char writedata)
{iic_Start();//IIC_send_byte(0x78); iic_Ack();IIC_send_byte(0x40); iic_Ack();IIC_send_byte(writedata);iic_Ack();iic_Stop();
}//OLED清屏
void olceClean()
{int i,j;for(i=0;i<8;i++){oledWriteCmd(0xB0 + i); //选择PAGEoledWriteCmd(0x00); //选择列oledWriteCmd(0x10);for(j = 0;j < 128; j++){Oled_Write_Data(0); //写入字符0}}
}//OLCD初始化
void oledInit(void)
{HAL_Delay(500);oledWriteCmd(0xAE);oledWriteCmd(0x00);oledWriteCmd(0x10);oledWriteCmd(0x40);oledWriteCmd(0xB0);oledWriteCmd(0x81);oledWriteCmd(0xFF);oledWriteCmd(0xA1);oledWriteCmd(0xA6);oledWriteCmd(0xA8);oledWriteCmd(0x3F);oledWriteCmd(0xC8);oledWriteCmd(0xD3);oledWriteCmd(0x00);oledWriteCmd(0xD5);oledWriteCmd(0x80);oledWriteCmd(0xD8);oledWriteCmd(0x05);oledWriteCmd(0xD9);oledWriteCmd(0xF1);oledWriteCmd(0xDA);oledWriteCmd(0x12);oledWriteCmd(0xDB);oledWriteCmd(0x30);oledWriteCmd(0x8D);oledWriteCmd(0x14);oledWriteCmd(0xAF);
}//以下代码厂家提供
void Oled_Show_Char(char row,char col,char oledChar){ //row*2-2unsigned int i;oledWriteCmd(0xb0+(row*2-2)); //page 0oledWriteCmd(0x00+(col&0x0f)); //lowoledWriteCmd(0x10+(col>>4)); //high for(i=((oledChar-32)*16);i<((oledChar-32)*16+8);i++){Oled_Write_Data(F8X16[i]); //写数据oledTable1}oledWriteCmd(0xb0+(row*2-1)); //page 1oledWriteCmd(0x00+(col&0x0f)); //lowoledWriteCmd(0x10+(col>>4)); //highfor(i=((oledChar-32)*16+8);i<((oledChar-32)*16+8+8);i++){Oled_Write_Data(F8X16[i]); //写数据oledTable1}
}//以下代码厂家提供
/******************************************************************************/
// 函数名称：Oled_Show_Char
// 输入参数：oledChar
// 输出参数：无
// 函数功能：OLED显示单个字符
/******************************************************************************/
void Oled_Show_Str(char row,char col,char *str){//页、列、字符串while(*str!=0){Oled_Show_Char(row,col,*str);str++;col += 8; }
}
4.oled.h文件（需添加）
#define SCL_HIGH HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET)//SCL高
#define SCL_LOW HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_RESET)#define SDA_HIGH HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_SET)//SDA高
#define SDA_LOW HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_RESET)void olceClean(void);
void oledInit(void);
void Oled_Show_Str(char row,char col,char *str);
void oledWriteCmd(unsigned char writeCmd);
void delay_us(unsigned int us);
四、工程添加.c和.h文件可以参考
STM32—SPI详解入门（使用SPI通讯读写W25Q128模块）_spi读写寄存器_wlkq~的博客-CSDN博客文章里面的第九、STM32工程添加.c和.h文件
更多推荐
STM32—项目三（温湿度在oled屏显示）
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