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STM32—OLED模块

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tpgf|  楼主 | 2024-8-3 11:30 | 只看该作者 |只看大图 回帖奖励 |倒序浏览 |阅读模式
1、OLED简介
OLED(Organic Light Emitting Diode):有机发光二极管
OLED显示屏:性能优异的新型显示屏,具有功耗低、相应速度快宽视角、轻薄柔韧等特点
0.96寸OLED模块:小巧玲珑、占用接口少、简单易用,是电子设计中非常常见的显示屏模块
供电:3~5.5V,
通信协议:I2C/SPI,
分辨率:128*64



一般来说:4阵脚使用I2C,7阵脚使用SPI

2、硬件电路



3、OLED驱动函数





OLED_Init();
    OLED_ShowChar(1, 1, 'A');
    OLED_ShowString(1, 3, "Hello world!");
    OLED_ShowNum(2, 1, 12345, 5);
    OLED_ShowSignedNum(2, 7, -66, 2);
    OLED_ShowHexNum(3, 1, 0xAA55, 4);
    OLED_ShowBinNum(4, 1, 0xAA55, 16);



4、代码
OLED.c

#include "stm32f10x.h"
#include "OLED_Font.h"

/*引脚配置*/
#define OLED_W_SCL(x)                GPIO_WriteBit(GPIOB, GPIO_Pin_8, (BitAction)(x))
#define OLED_W_SDA(x)                GPIO_WriteBit(GPIOB, GPIO_Pin_9, (BitAction)(x))

/*引脚初始化*/
void OLED_I2C_Init(void)
{
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
       
        GPIO_InitTypeDef GPIO_InitStructure;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
        GPIO_Init(GPIOB, &GPIO_InitStructure);
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
        GPIO_Init(GPIOB, &GPIO_InitStructure);
       
        OLED_W_SCL(1);
        OLED_W_SDA(1);
}

/**
  * @brief  I2C开始
  * @param  无
  * @retval 无
  */
void OLED_I2C_Start(void)
{
        OLED_W_SDA(1);
        OLED_W_SCL(1);
        OLED_W_SDA(0);
        OLED_W_SCL(0);
}

/**
  * @brief  I2C停止
  * @param  无
  * @retval 无
  */
void OLED_I2C_Stop(void)
{
        OLED_W_SDA(0);
        OLED_W_SCL(1);
        OLED_W_SDA(1);
}

/**
  * @brief  I2C发送一个字节
  * @param  Byte 要发送的一个字节
  * @retval 无
  */
void OLED_I2C_SendByte(uint8_t Byte)
{
        uint8_t i;
        for (i = 0; i < 8; i++)
        {
                OLED_W_SDA(Byte & (0x80 >> i));
                OLED_W_SCL(1);
                OLED_W_SCL(0);
        }
        OLED_W_SCL(1);        //额外的一个时钟,不处理应答信号
        OLED_W_SCL(0);
}

/**
  * @brief  OLED写命令
  * @param  Command 要写入的命令
  * @retval 无
  */
void OLED_WriteCommand(uint8_t Command)
{
        OLED_I2C_Start();
        OLED_I2C_SendByte(0x78);                //从机地址
        OLED_I2C_SendByte(0x00);                //写命令
        OLED_I2C_SendByte(Command);
        OLED_I2C_Stop();
}

/**
  * @brief  OLED写数据
  * @param  Data 要写入的数据
  * @retval 无
  */
void OLED_WriteData(uint8_t Data)
{
        OLED_I2C_Start();
        OLED_I2C_SendByte(0x78);                //从机地址
        OLED_I2C_SendByte(0x40);                //写数据
        OLED_I2C_SendByte(Data);
        OLED_I2C_Stop();
}

/**
  * @brief  OLED设置光标位置
  * @param  Y 以左上角为原点,向下方向的坐标,范围:0~7
  * @param  X 以左上角为原点,向右方向的坐标,范围:0~127
  * @retval 无
  */
void OLED_SetCursor(uint8_t Y, uint8_t X)
{
        OLED_WriteCommand(0xB0 | Y);                                        //设置Y位置
        OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4));        //设置X位置高4位
        OLED_WriteCommand(0x00 | (X & 0x0F));                        //设置X位置低4位
}

/**
  * @brief  OLED清屏
  * @param  无
  * @retval 无
  */
void OLED_Clear(void)
{  
        uint8_t i, j;
        for (j = 0; j < 8; j++)
        {
                OLED_SetCursor(j, 0);
                for(i = 0; i < 128; i++)
                {
                        OLED_WriteData(0x00);
                }
        }
}

/**
  * @brief  OLED显示一个字符
  * @param  Line 行位置,范围:1~4
  * @param  Column 列位置,范围:1~16
  * @param  Char 要显示的一个字符,范围:ASCII可见字符
  * @retval 无
  */
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char)
{             
        uint8_t i;
        OLED_SetCursor((Line - 1) * 2, (Column - 1) * 8);                //设置光标位置在上半部分
        for (i = 0; i < 8; i++)
        {
                OLED_WriteData(OLED_F8x16[Char - ' ']);                        //显示上半部分内容
        }
        OLED_SetCursor((Line - 1) * 2 + 1, (Column - 1) * 8);        //设置光标位置在下半部分
        for (i = 0; i < 8; i++)
        {
                OLED_WriteData(OLED_F8x16[Char - ' '][i + 8]);                //显示下半部分内容
        }
}

/**
  * @brief  OLED显示字符串
  * @param  Line 起始行位置,范围:1~4
  * @param  Column 起始列位置,范围:1~16
  * @param  String 要显示的字符串,范围:ASCII可见字符
  * @retval 无
  */
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String)
{
        uint8_t i;
        for (i = 0; String != '\0'; i++)
        {
                OLED_ShowChar(Line, Column + i, String);
        }
}

/**
  * @brief  OLED次方函数
  * @retval 返回值等于X的Y次方
  */
uint32_t OLED_Pow(uint32_t X, uint32_t Y)
{
        uint32_t Result = 1;
        while (Y--)
        {
                Result *= X;
        }
        return Result;
}

/**
  * @brief  OLED显示数字(十进制,正数)
  * @param  Line 起始行位置,范围:1~4
  * @param  Column 起始列位置,范围:1~16
  * @param  Number 要显示的数字,范围:0~4294967295
  * @param  Length 要显示数字的长度,范围:1~10
  * @retval 无
  */
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
        uint8_t i;
        for (i = 0; i < Length; i++)                                                       
        {
                OLED_ShowChar(Line, Column + i, Number / OLED_Pow(10, Length - i - 1) % 10 + '0');
        }
}

/**
  * @brief  OLED显示数字(十进制,带符号数)
  * @param  Line 起始行位置,范围:1~4
  * @param  Column 起始列位置,范围:1~16
  * @param  Number 要显示的数字,范围:-2147483648~2147483647
  * @param  Length 要显示数字的长度,范围:1~10
  * @retval 无
  */
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length)
{
        uint8_t i;
        uint32_t Number1;
        if (Number >= 0)
        {
                OLED_ShowChar(Line, Column, '+');
                Number1 = Number;
        }
        else
        {
                OLED_ShowChar(Line, Column, '-');
                Number1 = -Number;
        }
        for (i = 0; i < Length; i++)                                                       
        {
                OLED_ShowChar(Line, Column + i + 1, Number1 / OLED_Pow(10, Length - i - 1) % 10 + '0');
        }
}

/**
  * @brief  OLED显示数字(十六进制,正数)
  * @param  Line 起始行位置,范围:1~4
  * @param  Column 起始列位置,范围:1~16
  * @param  Number 要显示的数字,范围:0~0xFFFFFFFF
  * @param  Length 要显示数字的长度,范围:1~8
  * @retval 无
  */
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
        uint8_t i, SingleNumber;
        for (i = 0; i < Length; i++)                                                       
        {
                SingleNumber = Number / OLED_Pow(16, Length - i - 1) % 16;
                if (SingleNumber < 10)
                {
                        OLED_ShowChar(Line, Column + i, SingleNumber + '0');
                }
                else
                {
                        OLED_ShowChar(Line, Column + i, SingleNumber - 10 + 'A');
                }
        }
}

/**
  * @brief  OLED显示数字(二进制,正数)
  * @param  Line 起始行位置,范围:1~4
  * @param  Column 起始列位置,范围:1~16
  * @param  Number 要显示的数字,范围:0~1111 1111 1111 1111
  * @param  Length 要显示数字的长度,范围:1~16
  * @retval 无
  */
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length)
{
        uint8_t i;
        for (i = 0; i < Length; i++)                                                       
        {
                OLED_ShowChar(Line, Column + i, Number / OLED_Pow(2, Length - i - 1) % 2 + '0');
        }
}

/**
  * @brief  OLED初始化
  * @param  无
  * @retval 无
  */
void OLED_Init(void)
{
        uint32_t i, j;
       
        for (i = 0; i < 1000; i++)                        //上电延时
        {
                for (j = 0; j < 1000; j++);
        }
       
        OLED_I2C_Init();                        //端口初始化
       
        OLED_WriteCommand(0xAE);        //关闭显示
       
        OLED_WriteCommand(0xD5);        //设置显示时钟分频比/振荡器频率
        OLED_WriteCommand(0x80);
       
        OLED_WriteCommand(0xA8);        //设置多路复用率
        OLED_WriteCommand(0x3F);
       
        OLED_WriteCommand(0xD3);        //设置显示偏移
        OLED_WriteCommand(0x00);
       
        OLED_WriteCommand(0x40);        //设置显示开始行
       
        OLED_WriteCommand(0xA1);        //设置左右方向,0xA1正常 0xA0左右反置
       
        OLED_WriteCommand(0xC8);        //设置上下方向,0xC8正常 0xC0上下反置

        OLED_WriteCommand(0xDA);        //设置COM引脚硬件配置
        OLED_WriteCommand(0x12);
       
        OLED_WriteCommand(0x81);        //设置对比度控制
        OLED_WriteCommand(0xCF);

        OLED_WriteCommand(0xD9);        //设置预充电周期
        OLED_WriteCommand(0xF1);

        OLED_WriteCommand(0xDB);        //设置VCOMH取消选择级别
        OLED_WriteCommand(0x30);

        OLED_WriteCommand(0xA4);        //设置整个显示打开/关闭

        OLED_WriteCommand(0xA6);        //设置正常/倒转显示

        OLED_WriteCommand(0x8D);        //设置充电泵
        OLED_WriteCommand(0x14);

        OLED_WriteCommand(0xAF);        //开启显示
               
        OLED_Clear();                                //OLED清屏
}

OLED.h

#ifndef __OLED_H
#define __OLED_H

void OLED_Init(void);
void OLED_Clear(void);
void OLED_ShowChar(uint8_t Line, uint8_t Column, char Char);
void OLED_ShowString(uint8_t Line, uint8_t Column, char *String);
void OLED_ShowNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowSignedNum(uint8_t Line, uint8_t Column, int32_t Number, uint8_t Length);
void OLED_ShowHexNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);
void OLED_ShowBinNum(uint8_t Line, uint8_t Column, uint32_t Number, uint8_t Length);

#endif
OLED_FONT.H

#ifndef __OLED_FONT_H
#define __OLED_FONT_H

/*OLED字模库,宽8像素,高16像素*/
const uint8_t OLED_F8x16[][16]=
{
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//  0
       
        0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
       
        0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
       
        0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,
        0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
       
        0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,
        0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
       
        0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,
        0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
       
        0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,
        0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
       
        0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
       
        0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,
        0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
       
        0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,
        0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
       
        0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,
        0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
       
        0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,
        0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
       
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
       
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
       
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
       
        0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,
        0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
       
        0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
        0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
       
        0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,
        0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
       
        0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,
        0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
       
        0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,
        0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
       
        0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,
        0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
       
        0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,
        0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
       
        0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,
        0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
       
        0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,
        0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
       
        0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,
        0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
       
        0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,
        0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
       
        0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,
        0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
       
        0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
        0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
       
        0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,
        0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
       
        0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,
        0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
       
        0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,
        0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
       
        0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,
        0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
       
        0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,
        0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
       
        0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,
        0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
       
        0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,
        0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
       
        0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,
        0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
       
        0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,
        0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
       
        0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
        0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
       
        0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,
        0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
       
        0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,
        0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
       
        0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
        0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
       
        0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,
        0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
       
        0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,
        0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
       
        0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,
        0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
       
        0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,
        0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
       
        0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,
        0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
       
        0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,
        0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
       
        0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
        0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
       
        0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,
        0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
       
        0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,
        0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
       
        0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,
        0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
       
        0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,
        0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
       
        0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,
        0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
       
        0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,
        0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
       
        0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,
        0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
       
        0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,
        0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
       
        0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,
        0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
       
        0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,
        0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
       
        0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,
        0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
       
        0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,
        0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
       
        0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
       
        0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,
        0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
       
        0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
       
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
       
        0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
       
        0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
        0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
       
        0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,
        0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
       
        0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,
        0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
       
        0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,
        0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
       
        0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
        0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
       
        0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,
        0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
       
        0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
        0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
       
        0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,
        0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
       
        0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,
        0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
       
        0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,
        0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
       
        0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,
        0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
       
        0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,
        0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
       
        0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
        0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
       
        0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,
        0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
       
        0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,
        0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
       
        0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,
        0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
       
        0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,
        0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
       
        0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
        0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
       
        0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,
        0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
       
        0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,
        0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
       
        0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,
        0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
       
        0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
        0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
       
        0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,
        0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
       
        0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,
        0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
       
        0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,
        0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
       
        0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,
        0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
       
        0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,
        0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
       
        0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
       
        0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,
        0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
       
        0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};

#endif

————————————————

                            版权声明:本文为博主原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明。

原文链接:https://blog.csdn.net/m0_60322134/article/details/140748709

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沙发
chenci2013| | 2024-8-12 21:49 | 只看该作者
SSD1306、SH1106或其他型号,因为不同的模块可能有不同的驱动IC和接口协议。

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板凳
mikewalpole| | 2024-8-13 01:16 | 只看该作者
正确连接STM32的引脚到OLED模块。
SPI接口:连接CS(片选)、SCK(时钟)、MISO(数据输出,可选)、MOSI(数据输入)和RES(复位)引脚。
I2C接口:连接SDA(数据线)和SCL(时钟线)。

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地板
chenci2013| | 2024-8-13 03:57 | 只看该作者
了解OLED模块的接口协议,常见的有I2C、SPI和并行接口。根据接口类型选择相应的STM32外设进行通信。

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5
pl202| | 2024-8-13 07:13 | 只看该作者
根据OLED模块的通信协议,配置相应的GPIO引脚为输入输出模式,并设置适当的时钟速度和模式。

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6
caigang13| | 2024-8-13 07:36 | 只看该作者
主要是现在这种OLED也便宜了

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7
jackcat| | 2024-8-14 21:56 | 只看该作者
在驱动程序中加入错误处理机制,如重试机制、错误日志记录等,以提高程序的健壮性。

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8
pentruman| | 2024-8-15 12:10 | 只看该作者
根据所用的OLED模块选择合适的通信方式,常见的有I2C和SPI。对于I2C通讯方式,需要正确连接SCL和SDA线;若使用硬件SPI,则需连接对应的CS、SCK、MOSI、GND线。

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9
belindagraham| | 2024-8-15 15:38 | 只看该作者
#include "stm32f1xx_hal.h"
#include "oled_ssd1306.h"

#define OLED_I2C_ADDR 0x3C

void OLED_Init(void);
void OLED_Clear(void);
void OLED_DisplayText(const char *text, uint8_t x, uint8_t y);

int main(void)
{
    HAL_Init();
    SystemClock_Config();

    /* 初始化I2C */
    I2C1_Init();

    OLED_Init(); // 初始化OLED

    while (1)
    {
        OLED_Clear(); // 清屏
        OLED_DisplayText("Hello, OLED!", 10, 10); // 显示文本
    }
}

void OLED_Init(void)
{
    // 初始化OLED
    OLED_InitTypeDef OLED_InitStructure;

    OLED_InitStructure.Address = OLED_I2C_ADDR;
    OLED_Init(&OLED_InitStructure);
    OLED_Clear();
    OLED_DisplayOn();
}

void OLED_Clear(void)
{
    // 清除OLED屏幕
    OLED_FillScreen(OLED_COLOR_BLACK);
}

void OLED_DisplayText(const char *text, uint8_t x, uint8_t y)
{
    // 显示文本
    OLED_SetCursor(x, y);
    OLED_WriteString(text, OLED_FONT_11X18, OLED_COLOR_WHITE);
}

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10
菜鸟的第一步| | 2024-8-16 14:43 | 只看该作者
4脚的IIC协议的好用

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11
jtracy3| | 2024-8-17 11:00 | 只看该作者
STM32官方提供了HAL库,可以简化IIC或SPI通信的实现。确保正确配置HAL库中的相关函数。

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12
fengm| | 2024-8-17 12:49 | 只看该作者
合理安排显示内容的更新频率,避免不必要的频繁刷新导致的性能损耗。

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13
mattlincoln| | 2024-8-17 14:26 | 只看该作者
通过J-Link或ST-Link将编写的代码烧录到STM32微控制器中。

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14
robertesth| | 2024-8-17 18:43 | 只看该作者
对于 SPI 协议,设置合适的时钟极性和相位。

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15
pixhw| | 2024-8-17 21:23 | 只看该作者
虽然OLED模块上没有装电流保护装置,但使用时建议添加电流保护电路,以防意外情况下的大电流对模块造成损害。

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16
狄克爱老虎油| | 2024-8-17 22:12 | 只看该作者
spi比较浪费引脚

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17
zerorobert| | 2024-8-18 09:15 | 只看该作者
优化显示代码,减少内存占用和CPU负载,提高显示效率。

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18
nomomy| | 2024-8-18 11:34 | 只看该作者
在进行任何显示操作前,应先初始化OLED模块,包括发送开机、关闭电荷泵、设置显存地址模式等一系列命令

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19
maqianqu| | 2024-8-18 15:23 | 只看该作者
注意 OLED 模块在不同显示状态下的功耗特性,进行合理的电源管理。

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20
janewood| | 2024-8-18 17:06 | 只看该作者
根据OLED模块的规格,配置STM32的时钟系统,确保与OLED模块的通信速率相匹配。

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