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STM32—项目三（温湿度在oled屏显示）_温度传感器·oled屏幕显示

作者：小蓝xlanll | 2024-05-22 04:52:51

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温度传感器·oled屏幕显示

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）

  1. void delay_us(uint32_t us)//微妙延时
  2. {
  3.     uint32_t delay = (HAL_RCC_GetHCLKFreq() / 4000000 * us);
  4.     while (delay--)
  5.     {
  6.         ;
  7.     }
  8. }
  9.  
  10. void iic_Start(void)//起始信号
  11. {
  12. 	SCL_LOW;
  13. 	SDA_HIGH;
  14. 	SCL_HIGH;
  15. 	delay_us(5);
  16. 	SDA_LOW;
  17. 	delay_us(5);
  18.  
  19. }
  20.  
  21. void iic_Stop(void)//终止信号
  22. {
  23. 	SCL_HIGH;
  24. 	SDA_LOW;
  25. 	delay_us(5);
  26. 	SDA_HIGH;
  27. 	delay_us(5);
  28. }
  29.  
  30. //应答
  31. void iic_Ack()
  32. {
  33.   SDA_LOW; //虚拟应答，因为OLEd屏幕坏了无应答，所以无需读引脚
  34.   SCL_HIGH; 
  35. 	SCL_LOW;
  36. 	 
  37. }
  38.  
  39. //iic发送一字节数据
  40. void IIC_send_byte(uint8_t data)
  41. {
  42. 	SCL_LOW;
  43.   for(uint8_t i=0;i<8;i++){   
  44.         if(data & 0x80){
  45.             SDA_HIGH;
  46.         }else{
  47.             SDA_LOW;
  48.         }
  49.         SCL_HIGH;
  50.         SCL_LOW;
  51.         data = data<< 1;  /* 将下一位移至最高位 */
  52.   }
  53.   
  54. }
  55.  
  56. //OLED写指令 
  57. void oledWriteCmd(unsigned char writeCmd)
  58. {
  59.     iic_Start();
  60.     IIC_send_byte(0x78);  
  61.     iic_Ack();
  62.     IIC_send_byte(0x00);  
  63.     iic_Ack();
  64.     IIC_send_byte(writeCmd);
  65.     iic_Ack();
  66.     iic_Stop();
  67. }
  68.  
  69. //写数据
  70. void Oled_Write_Data(unsigned char writedata)
  71. {
  72.     iic_Start();//
  73.     IIC_send_byte(0x78);  
  74.     iic_Ack();
  75.     IIC_send_byte(0x40);  
  76. 		iic_Ack();
  77.     IIC_send_byte(writedata);
  78.     iic_Ack();
  79.     iic_Stop();
  80. }
  81.  
  82. //OLED清屏
  83. void olceClean()
  84. {
  85.     int i,j;
  86.  
  87.     for(i=0;i<8;i++){
  88.         oledWriteCmd(0xB0 + i);  //选择PAGE
  89.         oledWriteCmd(0x00);  //选择列
  90.         oledWriteCmd(0x10);
  91.         for(j = 0;j < 128; j++){
  92.             Oled_Write_Data(0);  //写入字符0
  93.         }
  94.     }
  95. }
  96.  
  97.  
  98. //OLCD初始化
  99. void oledInit(void)
  100. {
  101. 		HAL_Delay(500);
  102.     oledWriteCmd(0xAE);
  103.     oledWriteCmd(0x00);
  104.     oledWriteCmd(0x10);
  105.     oledWriteCmd(0x40);
  106.     oledWriteCmd(0xB0);
  107.     oledWriteCmd(0x81);
  108.     oledWriteCmd(0xFF);
  109.     oledWriteCmd(0xA1);
  110.     oledWriteCmd(0xA6);
  111.     oledWriteCmd(0xA8);
  112.     oledWriteCmd(0x3F);
  113.     oledWriteCmd(0xC8);
  114.     oledWriteCmd(0xD3);
  115.     oledWriteCmd(0x00);
  116.     oledWriteCmd(0xD5);
  117.     oledWriteCmd(0x80);
  118.     oledWriteCmd(0xD8);
  119.     oledWriteCmd(0x05);
  120.     oledWriteCmd(0xD9);
  121.     oledWriteCmd(0xF1);
  122.     oledWriteCmd(0xDA);
  123.     oledWriteCmd(0x12);
  124.     oledWriteCmd(0xDB);
  125.     oledWriteCmd(0x30);
  126.     oledWriteCmd(0x8D);
  127.     oledWriteCmd(0x14);
  128.     oledWriteCmd(0xAF);
  129. }
  130.  
  131. //以下代码厂家提供
  132. void Oled_Show_Char(char row,char col,char oledChar){ //row*2-2
  133. 	unsigned int  i;
  134. 	oledWriteCmd(0xb0+(row*2-2));                           //page 0
  135. 	oledWriteCmd(0x00+(col&0x0f));                          //low
  136. 	oledWriteCmd(0x10+(col>>4));                            //high	
  137. 	for(i=((oledChar-32)*16);i<((oledChar-32)*16+8);i++){
  138. 		Oled_Write_Data(F8X16[i]);                            //写数据oledTable1
  139. 	}
  140.  
  141. 	oledWriteCmd(0xb0+(row*2-1));                           //page 1
  142. 	oledWriteCmd(0x00+(col&0x0f));                          //low
  143. 	oledWriteCmd(0x10+(col>>4));                            //high
  144. 	for(i=((oledChar-32)*16+8);i<((oledChar-32)*16+8+8);i++){
  145. 		Oled_Write_Data(F8X16[i]);                            //写数据oledTable1
  146. 	}		
  147. }
  148.  
  149. //以下代码厂家提供
  150. /******************************************************************************/
  151. // 函数名称：Oled_Show_Char 
  152. // 输入参数：oledChar 
  153. // 输出参数：无 
  154. // 函数功能：OLED显示单个字符
  155. /******************************************************************************/
  156. void Oled_Show_Str(char row,char col,char *str){//页、列、字符串
  157.  
  158. 	while(*str!=0){
  159. 		Oled_Show_Char(row,col,*str);
  160. 		str++;
  161. 		col += 8;	
  162. 	}		
  163. }

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

  1. //初始化
  2. void DHT11_Start()
  3. {
  4.    //下面是主机信号
  5. 	DHT_GPIO_Init(GPIO_MODE_OUTPUT_PP);//PA5设置为输出推挽模式
  6. 	DHT_HIGH;
  7. 	DHT_LOW;
  8. 	HAL_Delay(30);//ms
  9. 	DHT_HIGH;
  10. 	
  11. 	DHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式
  12.   //下面是DHT信号，如果符合DHT信号时序图就进行运行
  13. 	while(DHT_VALUE);
  14. 	//dht=0
  15. 	while(!DHT_VALUE);
  16. 	//dht=1
  17. 	while(DHT_VALUE);//之后开始传输数据
  18. 	//dht=0
  19. }

         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

  1. void DHT11_Read()
  2. {
  3. 	int i;
  4. 	int j;
  5. 	char tmp;//移位，存放8个bit
  6. 	char flag;//标志位
  7. 	
  8. 	DHT11_Start();//重启进入高速模式之后才发送bit
  9. 	DHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式
  10. 	for(i = 0;i < 5;i++){//取4个字节
  11.  
  12. 		for(j=0;j<8;j++){//每个字节取8个bit
  13. 			while(!DHT_VALUE);//卡g点数据来会从0变成1 
  14. 			delay_us(40); //延时读取
  15. 			if(DHT_VALUE == 1){
  16. 					flag = 1;
  17. 					while(DHT_VALUE);//等待变位70us下一个bit
  18. 			}else{
  19. 					flag = 0;
  20. 			}	
  21. 			tmp = tmp << 1;//左移一位或者  tmp<<=1，为了使先出来的bit到高位
  22. 			tmp |= flag;//可以为   tmp=tmp|flag  
  23. 		}
  24. 		data[i] = tmp;//得到8个bit为一个字节，存放在数组里  
  25. 	}
  26.  
  27. }

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

  1. /* USER CODE BEGIN Header */
  2. /**
  3.   ******************************************************************************
  4.   * @file           : main.c
  5.   * @brief          : Main program body
  6.   ******************************************************************************
  7.   * @attention
  8.   *
  9.   * Copyright (c) 2023 STMicroelectronics.
  10.   * All rights reserved.
  11.   *
  12.   * This software is licensed under terms that can be found in the LICENSE file
  13.   * in the root directory of this software component.
  14.   * If no LICENSE file comes with this software, it is provided AS-IS.
  15.   *
  16.   ******************************************************************************
  17.   */
  18. /* USER CODE END Header */
  19. /* Includes ------------------------------------------------------------------*/
  20. #include "main.h"
  21. #include "gpio.h"
  22.  
  23. /* Private includes ----------------------------------------------------------*/
  24. /* USER CODE BEGIN Includes */
  25. #include "oled.h"
  26. #include "stdio.h"
  27.  
  28. /* USER CODE END Includes */
  29.  
  30. /* Private typedef -----------------------------------------------------------*/
  31. /* USER CODE BEGIN PTD */
  32. #define DHT_LOW HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET)
  33. #define DHT_HIGH HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET)
  34.  
  35. #define DHT_VALUE HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_5)
  36.  
  37. /* USER CODE END PTD */
  38.  
  39. /* Private define ------------------------------------------------------------*/
  40. /* USER CODE BEGIN PD */
  41. /* USER CODE END PD */
  42.  
  43. /* Private macro -------------------------------------------------------------*/
  44. /* USER CODE BEGIN PM */
  45.  
  46. /* USER CODE END PM */
  47.  
  48. /* Private variables ---------------------------------------------------------*/
  49.  
  50. /* USER CODE BEGIN PV */
  51.  
  52.  
  53. /* USER CODE END PV */
  54.  
  55. /* Private function prototypes -----------------------------------------------*/
  56. void SystemClock_Config(void);
  57. /* USER CODE BEGIN PFP */
  58.  
  59. /* USER CODE END PFP */
  60.  
  61. /* Private user code ---------------------------------------------------------*/
  62. /* USER CODE BEGIN 0 */
  63.  
  64.  
  65. void DHT_GPIO_Init(uint32_t Mode)//初始化GPIO口,PA5口
  66. {
  67. 	GPIO_InitTypeDef GPIO_InitStruct = {0};
  68. 	__HAL_RCC_GPIOA_CLK_ENABLE();//时钟
  69. 	GPIO_InitStruct.Pin = GPIO_PIN_5;
  70. 	GPIO_InitStruct.Mode = Mode;//输出还是输入
  71. 	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  72. 	HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  73. }
  74.  
  75. void DHT11_Start()
  76. {
  77.    //下面是主机信号
  78. 	DHT_GPIO_Init(GPIO_MODE_OUTPUT_PP);//PA5设置为输出推挽模式
  79. 	DHT_HIGH;
  80. 	DHT_LOW;
  81. 	HAL_Delay(30);//ms
  82. 	DHT_HIGH;
  83. 	
  84. 	DHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式
  85.   //下面是DHT信号，如果符合DHT信号时序图就进行运行
  86. 	while(DHT_VALUE);
  87. 	//dht=0
  88. 	while(!DHT_VALUE);
  89. 	//dht=1
  90. 	while(DHT_VALUE);//之后开始传输数据
  91. 	//dht=0
  92. }
  93.  
  94. uint8_t data[5];
  95.  
  96. void DHT11_Read()
  97. {
  98. 	int i;
  99. 	int j;
  100. 	char tmp;//移位，存放8个bit
  101. 	char flag;//标志位
  102. 	
  103. 	DHT11_Start();//重启进入高速模式之后才发送bit
  104.  
  105. 	DHT_GPIO_Init(GPIO_MODE_INPUT);//PA5设置为输入模式
  106. 	for(i = 0;i < 5;i++){//取4个字节
  107.  
  108. 		for(j=0;j<8;j++){//每个字节取8个bit
  109. 			while(!DHT_VALUE);//卡g点数据来会从0变成1 
  110. 			delay_us(40); //延时读取
  111. 			if(DHT_VALUE == 1){
  112. 					flag = 1;
  113. 					while(DHT_VALUE);//等待变位70us下一个bit
  114. 			}else{
  115. 					flag = 0;
  116. 			}	
  117. 			tmp = tmp << 1;//左移一位或者  tmp<<=1，为了使先出来的bit到高位
  118. 			tmp |= flag;//可以为   tmp=tmp|flag  
  119. 		}
  120. 		data[i] = tmp;//得到8个bit为一个字节，存放在数组里  
  121. 	}
  122.  
  123. }
  124.  
  125.  
  126. /* USER CODE END 0 */
  127.  
  128. /**
  129.   * @brief  The application entry point.
  130.   * @retval int
  131.   */
  132. int main(void)
  133. {
  134.   /* USER CODE BEGIN 1 */
  135.  
  136. 	
  137. 	char SpeedMes[16];
  138. 	
  139.   /* USER CODE END 1 */
  140.  
  141.   /* MCU Configuration--------------------------------------------------------*/
  142.  
  143.   /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  144.   HAL_Init();
  145.  
  146.   /* USER CODE BEGIN Init */
  147.  
  148.   /* USER CODE END Init */
  149.  
  150.   /* Configure the system clock */
  151.   SystemClock_Config();
  152.  
  153.   /* USER CODE BEGIN SysInit */
  154.  
  155.   /* USER CODE END SysInit */
  156.  
  157.   /* Initialize all configured peripherals */
  158.   MX_GPIO_Init();
  159.   /* USER CODE BEGIN 2 */
  160. 	
  161. 	oledInit();//OLED初始化
  162. 	oledWriteCmd(0x20);	//选择寻址方式
  163. 	oledWriteCmd(0x02);	//02是页寻址、00是水平寻址、01是垂直寻址模式
  164. 	olceClean();//清屏
  165.  
  166.   /* USER CODE END 2 */
  167.  
  168.   /* Infinite loop */
  169.   /* USER CODE BEGIN WHILE */
  170. while (1)
  171. {
  172.     /* USER CODE END WHILE */
  173.  
  174.     /* USER CODE BEGIN 3 */
  175. 		olceClean();
  176. 		DHT11_Read();
  177. 		
  178. 		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
  179. 		Oled_Show_Str(1,1,SpeedMes);
  180. 		sprintf(SpeedMes,"T:%d.%d",data[2], data[3]);
  181. 		Oled_Show_Str(2,1,SpeedMes);
  182. 		HAL_Delay(600);
  183.  
  184.   }
  185.   /* USER CODE END 3 */
  186. }
  187.  
  188. /**
  189.   * @brief System Clock Configuration
  190.   * @retval None
  191.   */
  192. void SystemClock_Config(void)
  193. {
  194.   RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  195.   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  196.  
  197.   /** Initializes the RCC Oscillators according to the specified parameters
  198.   * in the RCC_OscInitTypeDef structure.
  199.   */
  200.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  201.   RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  202.   RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  203.   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  204.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  205.   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  206.   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  207.   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  208.   {
  209.     Error_Handler();
  210.   }
  211.  
  212.   /** Initializes the CPU, AHB and APB buses clocks
  213.   */
  214.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
  215.                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  216.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  217.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  218.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  219.   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  220.  
  221.   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  222.   {
  223.     Error_Handler();
  224.   }
  225. }
  226.  
  227. /* USER CODE BEGIN 4 */
  228.  
  229. /* USER CODE END 4 */
  230.  
  231. /**
  232.   * @brief  This function is executed in case of error occurrence.
  233.   * @retval None
  234.   */
  235. void Error_Handler(void)
  236. {
  237.   /* USER CODE BEGIN Error_Handler_Debug */
  238.   /* User can add his own implementation to report the HAL error return state */
  239.   __disable_irq();
  240.   while (1)
  241.   {
  242.   }
  243.   /* USER CODE END Error_Handler_Debug */
  244. }
  245.  
  246. #ifdef  USE_FULL_ASSERT
  247. /**
  248.   * @brief  Reports the name of the source file and the source line number
  249.   *         where the assert_param error has occurred.
  250.   * @param  file: pointer to the source file name
  251.   * @param  line: assert_param error line source number
  252.   * @retval None
  253.   */
  254. void assert_failed(uint8_t *file, uint32_t line)
  255. {
  256.   /* USER CODE BEGIN 6 */
  257.   /* User can add his own implementation to report the file name and line number,
  258.      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  259.   /* USER CODE END 6 */
  260. }
  261. #endif /* USE_FULL_ASSERT */

2.oledfont.h头文件（需添加）

  1. //
  2. const unsigned char F8X16[]=	  
  3. {
  4.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
  5.   0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
  6.   0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
  7.   0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
  8.   0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
  9.   0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
  10.   0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
  11.   0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
  12.   0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
  13.   0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
  14.   0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
  15.   0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
  16.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
  17.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
  18.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
  19.   0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
  20.   0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
  21.   0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
  22.   0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
  23.   0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
  24.   0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
  25.   0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
  26.   0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
  27.   0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
  28.   0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
  29.   0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
  30.   0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
  31.   0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
  32.   0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
  33.   0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
  34.   0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
  35.   0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
  36.   0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
  37.   0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
  38.   0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
  39.   0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
  40.   0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
  41.   0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
  42.   0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
  43.   0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
  44.   0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
  45.   0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
  46.   0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
  47.   0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
  48.   0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
  49.   0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
  50.   0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
  51.   0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
  52.   0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
  53.   0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
  54.   0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
  55.   0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
  56.   0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
  57.   0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
  58.   0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
  59.   0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
  60.   0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
  61.   0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
  62.   0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
  63.   0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
  64.   0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
  65.   0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
  66.   0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
  67.   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
  68.   0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
  69.   0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
  70.   0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
  71.   0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
  72.   0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
  73.   0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
  74.   0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
  75.   0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
  76.   0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
  77.   0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
  78.   0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
  79.   0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
  80.   0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
  81.   0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
  82.   0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
  83.   0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
  84.   0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
  85.   0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
  86.   0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
  87.   0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
  88.   0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
  89.   0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
  90.   0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
  91.   0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
  92.   0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
  93.   0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
  94.   0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
  95.   0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
  96.   0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
  97.   0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
  98.   0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
  99. };

3.oled.c文件（需添加）

  1. #include "main.h"
  2. #include "gpio.h"
  3. #include "oled.h"
  4. #include "oledfont.h"
  5.  
  6. void delay_us(uint32_t us)
  7. {
  8.     uint32_t delay = (HAL_RCC_GetHCLKFreq() / 4000000 * us);
  9.     while (delay--)
  10.     {
  11.         ;
  12.     }
  13. }
  14.  
  15. void iic_Start(void)//起始信号
  16. {
  17. 	SCL_LOW;
  18. 	SDA_HIGH;
  19. 	SCL_HIGH;
  20. 	delay_us(5);
  21. 	SDA_LOW;
  22. 	delay_us(5);
  23.  
  24. }
  25.  
  26. void iic_Stop(void)//终止信号
  27. {
  28. 	SCL_HIGH;
  29. 	SDA_LOW;
  30. 	delay_us(5);
  31. 	SDA_HIGH;
  32. 	delay_us(5);
  33. }
  34.  
  35. //应答
  36. void iic_Ack()
  37. {
  38.   SDA_LOW; //虚拟应答，因为OLEd屏幕坏了无应答
  39.   SCL_HIGH; 
  40. 	SCL_LOW;
  41. 	 
  42. }
  43.  
  44. //iic发送一字节数据
  45. void IIC_send_byte(uint8_t data)
  46. {
  47. 	SCL_LOW;
  48.   for(uint8_t i=0;i<8;i++){   
  49.         if(data & 0x80){
  50.             SDA_HIGH;
  51.         }else{
  52.             SDA_LOW;
  53.         }
  54.         SCL_HIGH;
  55.         SCL_LOW;
  56.         data = data<< 1;  /* 将下一位移至最高位 */
  57.   }
  58.   //SCL_HIGH;  /* 发送完成，释放数据线*/
  59. }
  60.  
  61. //OLED写指令 
  62. void oledWriteCmd(unsigned char writeCmd)
  63. {
  64.     iic_Start();
  65.     IIC_send_byte(0x78);  
  66.     iic_Ack();
  67.     IIC_send_byte(0x00);  
  68.     iic_Ack();
  69.     IIC_send_byte(writeCmd);
  70.     iic_Ack();
  71.     iic_Stop();
  72. }
  73.  
  74. //写数据
  75. void Oled_Write_Data(unsigned char writedata)
  76. {
  77.     iic_Start();//
  78.     IIC_send_byte(0x78);  
  79.     iic_Ack();
  80.     IIC_send_byte(0x40);  
  81. 		iic_Ack();
  82.     IIC_send_byte(writedata);
  83.     iic_Ack();
  84.     iic_Stop();
  85. }
  86.  
  87. //OLED清屏
  88. void olceClean()
  89. {
  90.     int i,j;
  91.  
  92.     for(i=0;i<8;i++){
  93.         oledWriteCmd(0xB0 + i);  //选择PAGE
  94.         oledWriteCmd(0x00);  //选择列
  95.         oledWriteCmd(0x10);
  96.         for(j = 0;j < 128; j++){
  97.             Oled_Write_Data(0);  //写入字符0
  98.         }
  99.     }
  100. }
  101.  
  102.  
  103. //OLCD初始化
  104. void oledInit(void)
  105. {
  106. 		HAL_Delay(500);
  107.     oledWriteCmd(0xAE);
  108.     oledWriteCmd(0x00);
  109.     oledWriteCmd(0x10);
  110.     oledWriteCmd(0x40);
  111.     oledWriteCmd(0xB0);
  112.     oledWriteCmd(0x81);
  113.     oledWriteCmd(0xFF);
  114.     oledWriteCmd(0xA1);
  115.     oledWriteCmd(0xA6);
  116.     oledWriteCmd(0xA8);
  117.     oledWriteCmd(0x3F);
  118.     oledWriteCmd(0xC8);
  119.     oledWriteCmd(0xD3);
  120.     oledWriteCmd(0x00);
  121.     oledWriteCmd(0xD5);
  122.     oledWriteCmd(0x80);
  123.     oledWriteCmd(0xD8);
  124.     oledWriteCmd(0x05);
  125.     oledWriteCmd(0xD9);
  126.     oledWriteCmd(0xF1);
  127.     oledWriteCmd(0xDA);
  128.     oledWriteCmd(0x12);
  129.     oledWriteCmd(0xDB);
  130.     oledWriteCmd(0x30);
  131.     oledWriteCmd(0x8D);
  132.     oledWriteCmd(0x14);
  133.     oledWriteCmd(0xAF);
  134. }
  135.  
  136. //以下代码厂家提供
  137. void Oled_Show_Char(char row,char col,char oledChar){ //row*2-2
  138. 	unsigned int  i;
  139. 	oledWriteCmd(0xb0+(row*2-2));                           //page 0
  140. 	oledWriteCmd(0x00+(col&0x0f));                          //low
  141. 	oledWriteCmd(0x10+(col>>4));                            //high	
  142. 	for(i=((oledChar-32)*16);i<((oledChar-32)*16+8);i++){
  143. 		Oled_Write_Data(F8X16[i]);                            //写数据oledTable1
  144. 	}
  145.  
  146. 	oledWriteCmd(0xb0+(row*2-1));                           //page 1
  147. 	oledWriteCmd(0x00+(col&0x0f));                          //low
  148. 	oledWriteCmd(0x10+(col>>4));                            //high
  149. 	for(i=((oledChar-32)*16+8);i<((oledChar-32)*16+8+8);i++){
  150. 		Oled_Write_Data(F8X16[i]);                            //写数据oledTable1
  151. 	}		
  152. }
  153.  
  154. //以下代码厂家提供
  155. /******************************************************************************/
  156. // 函数名称：Oled_Show_Char 
  157. // 输入参数：oledChar 
  158. // 输出参数：无 
  159. // 函数功能：OLED显示单个字符
  160. /******************************************************************************/
  161. void Oled_Show_Str(char row,char col,char *str){//页、列、字符串
  162.  
  163. 	while(*str!=0){
  164. 		Oled_Show_Char(row,col,*str);
  165. 		str++;
  166. 		col += 8;	
  167. 	}		
  168. }

4.oled.h文件（需添加）

  1. #define SCL_HIGH HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET)//SCL高
  2. #define SCL_LOW HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_RESET)
  3.  
  4. #define SDA_HIGH HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_SET)//SDA高
  5. #define SDA_LOW HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_RESET)
  6.  
  7. void olceClean(void);
  8. void oledInit(void);
  9. void Oled_Show_Str(char row,char col,char *str);
  10. void oledWriteCmd(unsigned char writeCmd);
  11. 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

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