問題：在使用arduino環境下u8g2庫時，我們會遇到刷圖片的問題，今天就帶大家一步一步學習如何用IIC協議的0.96寸OLED顯示一幅圖片。
開發環境：Arduino (1.8.10) 或 VScode 環境下 PlatformIO 插件
硬件：ESP8266 或 Arduino UNO
接線：
1.ESP8266
| ESP8266 | NODEMCU | |
| gpio5 | D1 | SCL |
| gpio4 | D2 | SDA |
2.Arduino UNO
SDA，SCL是模擬口 A4 和 A5
所用開發庫：<U8g2> 2.25.10
- 圖片取模
- 下載一幅圖片
2.用電腦自帶工具 畫圖 打開
修改像素爲64*64
另存圖片爲 單色位圖*bmp格式
得到這麼一幅圖片
打開取模工具 PCtoLCD2002
模式選擇爲 圖形模式
打開剛纔另存的圖片：
點擊 設置
修改選項：
記得點擊 確定 哦！！！
然後拷貝下面數組到程序中！
#define bmp1_x 64
#define bmp1_y 64
static const unsigned char bmp1[] U8X8_PROGMEM = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xD0,0x00,0x00,0x00,0x00,0x0F,0x00,
0x00,0x90,0x07,0x00,0x00,0xC0,0x08,0x00,0x00,0x08,0x0F,0x00,0x00,0x70,0x10,0x00,0x00,0x08,0x1E,0x00,0x00,0x38,0x10,0x00,0x00,0x08,0x7D,0x00,0x00,0x1E,0x10,0x00,
0x00,0x08,0xFA,0x00,0x00,0x0F,0x30,0x00,0x00,0x04,0xF4,0x03,0xC0,0x07,0x20,0x00,0x00,0x04,0xE8,0x07,0xE0,0x13,0x30,0x00,0x00,0x04,0xFA,0xFF,0xFF,0x0B,0x20,0x00,
0x00,0x44,0xD4,0xFF,0xFF,0x27,0x20,0x00,0x00,0x84,0xE8,0xFF,0xFF,0x9F,0x30,0x00,0x00,0x04,0xF1,0xFF,0xFF,0x5F,0x30,0x00,0x00,0x04,0xFA,0x3F,0xFE,0x3F,0x10,0x00,
0x00,0x80,0xFC,0x1F,0xFC,0x7F,0x10,0x00,0x00,0x08,0xFE,0x0F,0xF8,0x7F,0x10,0x00,0x00,0x08,0xFF,0x07,0xF0,0xFF,0x10,0x00,0x00,0x88,0xFF,0x03,0xE0,0xFF,0x11,0x00,
0x00,0x88,0x0F,0x03,0xE0,0xF0,0x09,0x00,0x00,0xD0,0x03,0x00,0x00,0xC0,0x0B,0x00,0x00,0xD0,0x01,0x00,0x00,0x80,0x07,0x00,0x00,0xE0,0xE1,0x09,0x80,0x07,0x07,0x00,
0x00,0xE0,0xF0,0x03,0xC0,0x0F,0x07,0x00,0x00,0xE0,0xF8,0x17,0xE0,0x1F,0x07,0x00,0x00,0xE0,0xF8,0x07,0xE0,0x1F,0x07,0x00,0x00,0xE0,0xF8,0x07,0xE0,0x1F,0x07,0x00,
0x00,0xE0,0xF8,0x07,0xE0,0x1F,0x07,0x00,0x00,0xE0,0xF1,0x03,0xC0,0x8F,0x07,0x00,0x00,0xE0,0xE1,0x91,0x11,0xC3,0x07,0x00,0x00,0xE0,0x03,0x00,0x20,0xE0,0x07,0x00,
0x00,0xC0,0x0F,0x00,0x00,0xF0,0x03,0x00,0x00,0xC0,0x07,0x00,0x00,0x00,0x02,0x00,0x00,0x40,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x02,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x20,0x00,0x00,
0x00,0x00,0x08,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x0C,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
這一種是圖片取模，還有一種是直接自定義的：
打開取模工具 PCtoLCD2002
模式選擇爲 圖形模式
新建一幅圖像 ：
用左鍵畫畫上一些東西（提示：右鍵擦除點）
設置修改參數 ，與剛纔的一致，不再贅述~
拷貝數組到你的程序中。接下來讓我們看下效果吧
- 示例代碼
#include <Arduino.h>
#include <U8g2lib.h>
#ifdef U8X8_HAVE_HW_SPI
#include <SPI.h>
#endif
#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif
U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
#define bmp1_x 64
#define bmp1_y 64
static const unsigned char bmp1[] U8X8_PROGMEM = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xD0,0x00,0x00,0x00,0x00,0x0F,0x00,
0x00,0x90,0x07,0x00,0x00,0xC0,0x08,0x00,0x00,0x08,0x0F,0x00,0x00,0x70,0x10,0x00,0x00,0x08,0x1E,0x00,0x00,0x38,0x10,0x00,0x00,0x08,0x7D,0x00,0x00,0x1E,0x10,0x00,
0x00,0x08,0xFA,0x00,0x00,0x0F,0x30,0x00,0x00,0x04,0xF4,0x03,0xC0,0x07,0x20,0x00,0x00,0x04,0xE8,0x07,0xE0,0x13,0x30,0x00,0x00,0x04,0xFA,0xFF,0xFF,0x0B,0x20,0x00,
0x00,0x44,0xD4,0xFF,0xFF,0x27,0x20,0x00,0x00,0x84,0xE8,0xFF,0xFF,0x9F,0x30,0x00,0x00,0x04,0xF1,0xFF,0xFF,0x5F,0x30,0x00,0x00,0x04,0xFA,0x3F,0xFE,0x3F,0x10,0x00,
0x00,0x80,0xFC,0x1F,0xFC,0x7F,0x10,0x00,0x00,0x08,0xFE,0x0F,0xF8,0x7F,0x10,0x00,0x00,0x08,0xFF,0x07,0xF0,0xFF,0x10,0x00,0x00,0x88,0xFF,0x03,0xE0,0xFF,0x11,0x00,
0x00,0x88,0x0F,0x03,0xE0,0xF0,0x09,0x00,0x00,0xD0,0x03,0x00,0x00,0xC0,0x0B,0x00,0x00,0xD0,0x01,0x00,0x00,0x80,0x07,0x00,0x00,0xE0,0xE1,0x09,0x80,0x07,0x07,0x00,
0x00,0xE0,0xF0,0x03,0xC0,0x0F,0x07,0x00,0x00,0xE0,0xF8,0x17,0xE0,0x1F,0x07,0x00,0x00,0xE0,0xF8,0x07,0xE0,0x1F,0x07,0x00,0x00,0xE0,0xF8,0x07,0xE0,0x1F,0x07,0x00,
0x00,0xE0,0xF8,0x07,0xE0,0x1F,0x07,0x00,0x00,0xE0,0xF1,0x03,0xC0,0x8F,0x07,0x00,0x00,0xE0,0xE1,0x91,0x11,0xC3,0x07,0x00,0x00,0xE0,0x03,0x00,0x20,0xE0,0x07,0x00,
0x00,0xC0,0x0F,0x00,0x00,0xF0,0x03,0x00,0x00,0xC0,0x07,0x00,0x00,0x00,0x02,0x00,0x00,0x40,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x02,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x20,0x00,0x00,
0x00,0x00,0x08,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x0C,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
#define bmp2_x 128
#define bmp2_y 64
static const unsigned char bmp2[] U8X8_PROGMEM = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x01,0x00,0x7E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x81,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,
0x00,0x01,0x00,0x00,0x01,0x00,0xF8,0x01,0x00,0x00,0x01,0x00,0x00,0x00,0xFF,0x07,0x00,0x01,0x00,0x00,0x01,0x00,0x00,0x07,0x00,0x00,0x21,0x00,0x00,0xA0,0x01,0x00,
0x00,0x01,0x00,0x00,0x01,0x00,0x00,0x04,0x00,0x00,0x21,0x00,0x00,0x30,0x00,0x00,0x00,0x01,0x00,0x80,0x01,0x00,0x00,0x06,0x00,0x00,0x21,0x00,0x00,0x10,0x00,0x00,
0x00,0x01,0x00,0x80,0x00,0x00,0xE0,0x03,0x00,0x00,0x21,0x00,0x00,0x10,0x00,0x00,0x00,0x01,0x00,0x40,0x00,0x00,0x60,0x00,0x00,0x00,0x23,0x10,0x00,0x30,0x00,0x00,
0x00,0x01,0x00,0x60,0x00,0x00,0x80,0x03,0x00,0x00,0xFE,0x1F,0x00,0x60,0x00,0x00,0x00,0x01,0x00,0x18,0x00,0x00,0x00,0x04,0x00,0x00,0x20,0x00,0x00,0x80,0x01,0x00,
0x00,0x01,0x80,0x0F,0x00,0x00,0x00,0x04,0x00,0x00,0x30,0x00,0x00,0x00,0x1E,0x00,0x00,0x01,0x80,0x3F,0x00,0x00,0x00,0x06,0x00,0x00,0x10,0x00,0x00,0x00,0xE0,0x00,
0x00,0x00,0x00,0xC0,0x03,0x00,0x00,0x03,0x00,0x00,0x10,0x00,0x00,0x00,0x80,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x01,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x03,
0x00,0x00,0x00,0x00,0x00,0x00,0x70,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x01,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x38,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x96,0x2A,0x00,0x00,0x00,0x00,0xF0,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xA0,0x00,0x80,0x02,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x00,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x44,0xA4,0x22,0x49,0x02,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x12,0x00,0x00,0x04,0x00,0x50,0x2A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x2C,0x00,0x00,0x00,0x18,0x00,0x00,0x40,0x01,0x00,
0x00,0x00,0x00,0x00,0x00,0x20,0x03,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x01,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x18,0x00,
0x00,0x00,0xF0,0xAD,0x55,0x9D,0x4B,0x69,0x3B,0x00,0xC0,0x00,0x00,0x00,0x10,0x00,0x00,0x40,0x0E,0x00,0x00,0x38,0x01,0x00,0xC0,0x01,0x80,0x00,0x00,0x00,0x10,0x00,
0x00,0xC0,0x01,0x00,0x00,0x6E,0x01,0x00,0x1F,0x01,0x80,0x00,0x00,0x00,0x10,0x00,0x00,0xC0,0x00,0x00,0x80,0xC7,0x01,0xC0,0x10,0x02,0xFC,0x00,0x00,0x00,0x10,0x00,
0x00,0xB0,0x00,0x00,0xC0,0x84,0x02,0x30,0x20,0x82,0x83,0x00,0x00,0x00,0x10,0x00,0x00,0x18,0x01,0x00,0x30,0x82,0x03,0x08,0x20,0x42,0xC0,0x00,0x00,0x00,0x10,0x00,
0x00,0x0C,0x03,0x00,0x18,0x02,0x01,0x06,0x40,0x21,0xC0,0x00,0x00,0x00,0x10,0x00,0x00,0x04,0x06,0x00,0x06,0x02,0x05,0x01,0x40,0x11,0xA0,0x00,0x00,0x00,0x18,0x00,
0x00,0x06,0x0C,0x00,0x03,0x04,0xC7,0x00,0xC0,0x08,0x90,0x1E,0x00,0x00,0x08,0x00,0x00,0x00,0x18,0xC0,0x00,0x04,0x2A,0x00,0xE0,0x04,0x88,0x11,0x00,0x00,0x08,0x00,
0x00,0x00,0x60,0x70,0x00,0x04,0x1A,0x00,0x90,0x06,0x84,0x30,0xE0,0x01,0x0C,0x00,0x00,0x00,0x80,0x0F,0x00,0x08,0x1E,0x00,0x88,0x02,0x02,0x20,0x38,0x03,0x06,0x00,
0x00,0x00,0x00,0x00,0x00,0x18,0x24,0x00,0x82,0xC1,0x00,0x20,0x0E,0x02,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0xC0,0x80,0x01,0x20,0x00,0x40,0x02,0x82,0x01,0x00,
0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x21,0x00,0x0C,0x00,0xC0,0x01,0x62,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x01,0x16,0x00,0x02,0x00,0x80,0x01,0x32,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x6E,0x3B,0xD8,0x00,0x00,0x80,0x00,0x0A,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x05,0x00,0x00,0xC0,0x00,0x06,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xA0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
void setup(void) {
u8g2.begin();
}
void loop(void) {
u8g2.firstPage();
do {
u8g2.setFont(u8g2_font_ncenB14_tr);
u8g2.drawXBMP(32,0, bmp1_x, bmp1_y, bmp1);
} while ( u8g2.nextPage() );
delay(500);
u8g2.firstPage();
do {
u8g2.setFont(u8g2_font_ncenB14_tr);
u8g2.drawXBMP(0,0, bmp2_x, bmp2_y, bmp2);
} while ( u8g2.nextPage() );
delay(500);
}
上傳代碼到你的ESP8266或者Arduino UNO 中
你會看到以下效果
- 演示結果
