Arduino Uno 驱动OLED进阶 显示图片

用OLED实现图片的显示的具体实现方法

接线方法使用IIC方式，具体请参考入门篇

Arduino 驱动OLED屏幕IIC接线方式简单入门

看看示例实现效果哈

制作一张BMP图片

首先要有一张BMP图片



自己用windows自带的画版画了一张大气的 晴朗大山浮云图，保存为BMP格式。各位看官可自行创作

PS：我用的PS另存为的BMP图片无法在取模软件上读取，不解。

图片点阵取模

打开  字模提取V2.2 软件 


字模提取V2.2  

分享地址：http://pan.baidu.com/s/1i50UmxB



经过以上步骤 ，图片正确打开，会看到以下界面



接着点开取模方式，点击C51格式，就会看到点阵数组



在这里，注意宽度与高度，还有把点阵数组都复制了。

开源程序代码：

//显示图片程序

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);

static const unsigned char PROGMEM logo[] =
{
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};

#if (SSD1306_LCDHEIGHT != 64)
#error("Height incorrect, please fix Adafruit_SSD1306.h!");
#endif

void setup()   {
Serial.begin(9600);
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
display.clearDisplay();
}

void loop() {
display.drawBitmap(0, 0, logo, 128, 64, 1);  //在坐标X0，Y0的位置开始显示图片
//128是取模软件显示的宽度
//64是取模软件显示的高度
display.display();                           //把缓存的都显示
delay(1);

display.clearDisplay();     //清除屏幕
}