论坛 › Arduino › 用OLED屏显示图片（制作篇）

青出于蓝 发表于 2019-11-11 18:40:44

用OLED屏显示图片（制作篇）

今天给大家带来OLED屏显示图片的制作方法
需要图片的请看https://mc.dfrobot.com.cn/thread-299362-1-1.html
需要代码的请看https://mc.dfrobot.com.cn/thread-299357-1-1.html


那么话不多说，开始。

首先，先从网上找到需要的图片（注意，图片要简洁，背景最好是白色）

(自己画的）如果你是从网上找得彩色图片，比如这个

或者这个
（这个不推荐用）
那么你就需要进行转换
先把背景扣掉

再打开画图



点重新调整大小中像素一栏，调整像素（方照片为64x64，长照片为128x64，最多不超过128x64）
然后另存为BMP格式

选单色位图


稍微改一下图

完成，打开取模软件Img2Lcd。
打开你的图片，点保存。把C文件改成TXT文件
十六进制模如下
const unsigned char gImage_bb =
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};
把前六位十六进制码删掉，只留剩下的十六进制码。
打开ARDUINO IDE，输入以下代码。

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



#define OLED_RESET   14
Adafruit_SSD1306 display(128, 64, &Wire, OLED_RESET);

//取16X16汉字字模 逐行式 顺向高位在前
static const unsigned char PROGMEM str1[] =
{
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};
void setup() {
// put your setup code here, to run once:
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
display.setTextColor(WHITE);//开像素点发光
display.clearDisplay();//清屏

    display.drawBitmap(0,0 , str1, 128, 64, 1);
}

void loop() {
// put your main code here, to run repeatedly:

}
注意，如果是128x64的图
最后一句为

display.drawBitmap(0,0 , str1, 128, 64, 1);
如果是64x64的图
最后一句为

display.drawBitmap(0,32, str1, 64, 64, 1);
感谢大家

青出于蓝 发表于 2019-11-11 18:43:18

不好意思，贴没发全。

gada888 发表于 2019-11-21 18:42:03

木事，以后补全就行了

查看完整版本: 用OLED屏显示图片（制作篇）