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第一次写硬件相关的笔记，整个过程也是慢慢摸索，还有很对知识不太懂，如果有错误，希望你可以帮我提出
准备
物料：CH340开发板 ESP8266串口wifi模块，ssd1306 0.96OLED 软件：Arduino IDE ； Adobe Photoshop； PcTOLCD 环境配置可参考搭建arduino esp8266初体验
配置开发环境
打开Arduino IDE 首先在“文件》首选项》附加开发板管理器网址”；添加管理器配置项 http://arduino.esp8266.com/stable/package_esp8266com_index.json 配置中指定了esp8266的驱动下载地址
打开“工具》开发板》开发板管理器 ”搜索esp8266进行安装，估计服务器都在国外，想加速网上办法很多，这里不再详述  安装完以后“开发板”面板中找到8266对应的开发板型号 我在这里选择的是NodeMCU1.0 这里根据自己的开发物联网平台进行选择即可；
安装屏幕驱动（U8g2）
进入“工具》管理库”输入U8g2进行安装  安装完成以后在“文件》示例”其中里面有很对的案例
硬件链接
 一切准备就绪开始取模，编译 在PS中将图像二值化  设置好想要的图像大小，可设点给好像素进行裁剪，然后修改图像大小  将图片保存为bmp格式以方便取模 
单色位图取模工具pctolcd2002  在设置中配置好u8g2.drawXBMP()需要的格式   推荐一个在线取模工具，可直接上传图片： 在线取模地址 https://dlsjf.top/other/binary
代码
/*
使用u8g2显示数据
图形显示器：OpenJumper 12864 OLED
设备核心：SSD1306
*/
#include
#define rst 2
/*
构造器（我自己理解为驱动）
1 Prefix U8G2 前缀
2 Display Controller SSD1306 显示控制器
3 Display Name 128X64_NONAME 显示器名称
4 Buffer Size 1, 2 or F (full frame buffer) 1：保持一页的缓冲区，用于firstPage/nextPage的PageMode。2：保持两页的缓冲区，用于firstPage/nextPage的PageMode.F:获取整个屏幕的缓冲区，ram消耗大，一般用在ram空间比较大的arduino板子.
5 Communication 4W_SW_SPI 通信协议
6 U8G2_R0 显示旋转角度 R0:0deg R1: 90deg; R2:180deg; R3:270deg
*/
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0);
//取模得到的数组
//width:128,height:64
// 将图片取模数据进行赋值
const unsigned char col[] U8X8_PROGMEM= {0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0xF8,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x8F,0xE2,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE7,0xCF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF3,0x9E,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0xBE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0x00,0xFF,0xFF,0x19,0x30,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0x87,0x5F,0xFC,0xFF,0x19,0x3C,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF1,0xFF,0xF1,0xFF,0x7D,0x38,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFC,0xFF,0xCF,0xFF,0xB9,0x73,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F,0xFF,0xFF,0x9F,0xFF,0x9D,0x66,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x9F,0xFF,0xFF,0x3F,0xFF,0xC9,0x6E,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xCF,0x7F,0xFE,0x7F,0xFF,0xFD,0x7E,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE7,0xBF,0xF0,0x07,0xFE,0xF9,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF7,0xCF,0xE7,0xF3,0xFC,0xF3,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFB,0xEF,0xCF,0xFD,0xFD,0x07,0x82,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF9,0xE7,0xDF,0xFD,0xF9,0xBF,0xE8,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xE7,0xD7,0x28,0xF8,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0x0F,0xC0,0x81,0xF1,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xE7,0xFD,0xDD,0xF1,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFE,0xEF,0xCF,0xFD,0xEE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xCF,0xE7,0x63,0xE6,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0x1F,0xB4,0x0E,0xEF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0x3F,0xFF,0xFF,0x3E,0xFC,0xCF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0xFF,0xCF,0xD1,0xEF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x9F,0xFF,0xFF,0xA1,0x87,0xCF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0xFF,0xFC,0x3F,0xDF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0xFF,0xFE,0x7F,0xDF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xDF,0xFF,0xFF,0x01,0x78,0xDF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xCF,0xFF,0xFF,0xFF,0x33,0x9F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xCF,0xFF,0xFF,0x1F,0x9C,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xEF,0xFF,0xFF,0xA7,0xCF,0x9F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xEF,0xFF,0xFF,0xF3,0xF1,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE7,0xFF,0xFF,0x07,0xFC,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xEF,0xFF,0xFF,0xFF,0xFF,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF3,0xFF,0xFF,0xFF,0xFF,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF3,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0x7D,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF9,0xFF,0xFF,0xFF,0xFF,0x25,0x00,0x08,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF9,0xFF,0xEF,0xFF,0xFF,0xF4,0xFF,0xF7,0xFC,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF9,0xFF,0xEF,0xFF,0x7F,0xFB,0xFF,0xFF,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFB,0xFF,0x8F,0xFF,0x7F,0xF9,0xFF,0x7F,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xE7,0x3F,0xFE,0xBF,0xFD,0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFD,0xCF,0xFF,0xF8,0x9F,0xFE,0xFF,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF9,0x9F,0xFF,0xE3,0x4F,0xFE,0xFF,0xBF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFD,0x3F,0xFF,0xCF,0x6F,0xFE,0xFF,0x9F,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x1F,0x01,0x21,0xF8,0x1F,0x68,0xFF,0xF3,0x1F,0xFC,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x5F,0x6A,0x5A,0x22,0xBF,0xAF,0xFF,0xF3,0xEF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x8F,0x7C,0x30,0x82,0xFF,0xFF,0xEF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xE7,0x39,0x64,0x9A,0xFF,0xFF,0xE7,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF3,0xF3,0x9E,0xDF,0xFF,0xFF,0xF7,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x77,0xF7,0xB9,0xEF,0xFF,0xFF,0xF3,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x77,0xF6,0xE3,0xEF,0xFF,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xE7,0xF8,0x8F,0xE7,0xFF,0xFF,0xF9,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x1F,0xF8,0x3F,0xF7,0xFF,0xFF,0xFD,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F,0x15,0x70,0xF0,0x7F,0xAB,0xFC,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x23,0xC7,0x00,0x00,0x00,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x1F,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
void setup(void) {
u8g2.begin();
}
void loop(void) {
u8g2.clearBuffer(); // 清除缓冲区内容
u8g2.drawXBMP( 0 , 0 , 128 , 64 , col ); //128,64为图片尺寸，根据你的图片尺寸修改
u8g2.sendBuffer(); // 显示缓冲区内容
delay(1000);
}
编译
打开“工具》端口” 中选择好对应的端口，再“项目》上传”进度100%后程序就烧进开发板了，屏幕就会显示出位图内容 
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