一、

    二、程序代码：
    1、主函数：

    1. //OLED屏 显示时间的程序
    2. //SCL接A5
    3. //SDL接A4
    5. // 引入IIC通讯所需的Wire库文件
    6. #include <Wire.h>
    7. #include "text.h"
    8. #include <Adafruit_GFX.h>  // 引入驱动OLED0.96所需的库
    9. #include <Adafruit_SSD1306.h>
    11. #define SCREEN_WIDTH 128 // 设置OLED宽度,单位:像素
    12. #define SCREEN_HEIGHT 64 // 设置OLED高度,单位:像素
    14. // 自定义重置引脚,虽然教程未使用,但却是Adafruit_SSD1306库文件所必需的
    15. #define OLED_RESET 4
    16. int miao = 0;
    17. int fen = 54;
    18. int shi = 15;
    19. int hao = 0;
    20. int nian = 2021;
    21. int yue = 11;
    22. int ri = 12;
    24. Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
    26. void setup()
    27. {
    28.   // 初始化Wire库
    29.   //  Wire.begin();
    30.   // 初始化OLED并设置其IIC地址为 0x3C
    31.   display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
    32. }
    34. void loop()
    35. {
    36.    words_display();
    37.    display.display();
    38. }
    40. void words_display()
    41. {
    42.   display.clearDisplay();// 清除屏幕
    43.   display.setTextColor(WHITE); // 设置字体颜色,白色可见
    44.   display.setTextSize(2);//设置字体大小
    46.   display.setCursor(0, 0);//设置光标位置
    47.   display.print(nian);
    48.   // 显示文字 ；第一个参数：列；第二个参数：行；第三个参数：字；第四五个参数：字的宽长；第六个参数：颜色
    49.   display.drawBitmap(45, 0, niann, 16, 16, 1);
    51.   display.setCursor(60, 0);
    52.    display.print(yue);
    53.   display.drawBitmap(80, 0, yuee, 16, 16, 1);   //月
    55.   display.setCursor(95, 0);
    56.    display.print(ri);
    57.   display.drawBitmap(116, 0, rii, 16, 16, 1);   //日
    59.    display.drawBitmap(0, 40, xingg, 16, 16, 1);  //星
    60.    display.drawBitmap(16, 40, qii, 16, 16, 1);  //期
    61.    display.setCursor(32, 45);
    62.    display.print(":");
    65.   delay(1000);
    66.   miao++;
    68.   display.setCursor(60, 20);//第一个参数：列；第二个参数：行
    69.   display.print(":");
    70.   display.print(miao);
    72.   display.setCursor(25, 20);//第一个参数：列；第二个参数：行
    73.   display.print(":");
    74.   display.print(fen);
    76.   display.setCursor(0, 20);//第一个参数：列；第二个参数：行
    77.   display.print(shi);
    79.   if(miao >= 60)
    80.   {
    81.        miao = 00;
    82.        fen++;        
    83.   }
    84.   if(fen >= 60)
    85.    {
    86.       fen = 00;
    87.       shi++; 
    88.    }
    89.    if(shi>=24)
    90.    {
    91.       shi = 00;
    92.       ri++; 
    93.    }
    94. }

    2、htxt.h ：

    1. static const unsigned char PROGMEM niann[] = {
    2. 0x10,0x00,0x10,0x00,0x1F,0xFC,0x20,0x80,0x20,0x80,0x40,0x80,0x1F,0xF8,0x10,0x80,
    3. 0x10,0x80,0x10,0x80,0xFF,0xFE,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80};
    4. /*"年",0*/
    6. static const unsigned char PROGMEM yuee[] = {
    7. 0x00,0x00,0x1F,0xF8,0x10,0x08,0x10,0x08,0x10,0x08,0x1F,0xF8,0x10,0x08,0x10,0x08,
    8. 0x10,0x08,0x1F,0xF8,0x10,0x08,0x10,0x08,0x20,0x08,0x20,0x08,0x40,0x28,0x80,0x10};
    9. /*"月",1*/
    11. static const unsigned char PROGMEM rii[] = {
    12. 0x00,0x00,0x1F,0xF0,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,
    13. 0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10};
    14. /*"日",2*/
    16. static const unsigned char PROGMEM xingg[] = {
    17. 0x00,0x00,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x01,0x00,0x11,0x00,
    18. 0x1F,0xF8,0x21,0x00,0x41,0x00,0x1F,0xF0,0x01,0x00,0x01,0x00,0x7F,0xFC,0x00,0x00};
    19. /*"星",3*/
    21. static const unsigned char PROGMEM qii[] = {
    22. 0x22,0x00,0x22,0x7C,0x7F,0x44,0x22,0x44,0x22,0x44,0x3E,0x7C,0x22,0x44,0x22,0x44,
    23. 0x3E,0x44,0x22,0x7C,0x22,0x44,0xFF,0x44,0x04,0x84,0x22,0x84,0x41,0x14,0x82,0x08};
    24. /*"期",4*/
    26. static const unsigned char PROGMEM yii[] = {
    27. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFE,
    28. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
    29. /*"一",5*/
    31. static const unsigned char PROGMEM err[] = {
    32. 0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    33. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFE,0x00,0x00,0x00,0x00,0x00,0x00};
    34. /*"二",6*/
    36. static const unsigned char PROGMEM sann[] = {
    37. 0x00,0x00,0x00,0x00,0x7F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xF8,
    38. 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFE,0x00,0x00,0x00,0x00};
    39. /*"三",7*/
    41. static const unsigned char PROGMEM sii[] = {
    42. 0x00,0x00,0x00,0x00,0x7F,0xFC,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44,
    43. 0x48,0x44,0x48,0x3C,0x50,0x04,0x60,0x04,0x40,0x04,0x7F,0xFC,0x40,0x04,0x00,0x00};
    44. /*"四",8*/
    46. static const unsigned char PROGMEM wuu[] = {
    47. 0x00,0x00,0x7F,0xFC,0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x00,0x3F,0xF0,0x04,0x10,
    48. 0x04,0x10,0x04,0x10,0x04,0x10,0x08,0x10,0x08,0x10,0x08,0x10,0xFF,0xFE,0x00,0x00};
    49. /*"五",9*/
    51. static const unsigned char PROGMEM liuu[] = {
    52. 0x02,0x00,0x01,0x00,0x00,0x80,0x00,0x80,0x00,0x00,0xFF,0xFE,0x00,0x00,0x00,0x00,
    53. 0x04,0x40,0x04,0x20,0x08,0x10,0x08,0x08,0x10,0x08,0x20,0x04,0x40,0x04,0x00,0x00};
    54. /*"六",10*/
    56. static const unsigned char PROGMEM qiii[] = {
    57. 0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x3C,0x07,0xC0,0xFA,0x00,
    58. 0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x04,0x02,0x04,0x02,0x04,0x01,0xFC,0x00,0x00};
    59. /*"七",11*/

    三、