IIC配置：在STM32CubeMX中配置IIC外设为 Fast Mode （400kHz）。
配置IIC引脚
配置RCC（复位与时钟控制）保存并生成HAL库初始化代码。
配置OLED需要的相关代码函数
OLED_Init(); //初始化OLED
OLED_DisPlay_On(); //开启OLED显示
OLED_DisPlay_Off(); //关闭OLED显示
OLED_NewFrame(); //清空显存
OLED_ShowFrame(); //将当前显存显示到屏幕上
OLED_SetPixel(uint8_t x, uint8_t y, OLED_ColorMode color); //设置一个像素点
OLED_DrawLine(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, OLED_ColorMode color);
// 绘制一条线段
OLED_DrawRectangle(uint8_t x, uint8_t y, uint8_t w, uint8_t h, OLED_ColorMode color);
//绘制一个矩形
OLED_DrawFilledRectangle(uint8_t x, uint8_t y, uint8_t w, uint8_t h, OLED_ColorMode color);
//绘制一个填充矩形
OLED_DrawTriangle(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, uint8_t x3, uint8_t y3, OLED_ColorMode color);//绘制一个三角形
OLED_DrawFilledTriangle(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, uint8_t x3, uint8_t y3, OLED_ColorMode color);//绘制一个填充三角形
OLED_DrawCircle(uint8_t x, uint8_t y, uint8_t r, OLED_ColorMode color); //绘制一个圆
OLED_DrawFilledCircle(uint8_t x, uint8_t y, uint8_t r, OLED_ColorMode color); // 绘制一个填充圆
OLED_DrawEllipse(uint8_t x, uint8_t y, uint8_t a, uint8_t b, OLED_ColorMode color);
//绘制一个椭圆
OLED_DrawImage(uint8_t x, uint8_t y, const Image *img, OLED_ColorMode color);
//绘制一张图片
OLED_PrintASCIIChar(uint8_t x, uint8_t y, char ch, const ASCIIFont *font, OLED_ColorMode color); //绘制一个ASCII字符
OLED_PrintASCIIString(uint8_t x, uint8_t y, char *str, const ASCIIFont *font, OLED_ColorMode color); //绘制一个ASCII字符串
OLED_PrintString(uint8_t x, uint8_t y, char *str, const Font *font, OLED_ColorMode color);
//绘制字符串
通过取模助手将需要的图片或文字生成代码保存到font.c font.h
最后在main文件里面调用
实现效果
