设备清单
- esp8266开发板
- oled (0.96)
- 杜邦线
设备电路图
添加库
u8g2库文件
项目一 Hello World
代码语言：javascript复制/*
HelloWorld.ino
esp8266 oled项目实例
论坛：bbskali.cn
博客：blog.bbskali.cn
*/
#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_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ D2, /* data=*/ D1, /* reset=*/ U8X8_PIN_NONE); // 此处 D1 D2是对应焊接的脚针
void setup(void) {
u8g2.begin();
}
void loop(void) {
u8g2.clearBuffer(); // clear the internal memory
u8g2.setFont(u8g2_font_ncenB08_tr); // choose a suitable font
u8g2.drawStr(0,10,"Hello World!"); // write something to the internal memory
u8g2.sendBuffer(); // transfer internal memory to the display
delay(1000);
}效果如下：
项目二 显示汉字
代码如下：
代码语言：javascript复制/*
esp8266 oled显示屏
显示汉字项目
论坛地址：bbskali.cn
博客：blog.bbskali.cn
*/
#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_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ D2, /* data=*/ D1, /* reset=*/ U8X8_PIN_NONE); // All Boards without Reset of the Display
void setup(void) {
u8g2.begin();
u8g2.enableUTF8Print(); // enable UTF8 support for the Arduino print() function
}
void loop(void) {
u8g2.setFont(u8g2_font_unifont_t_chinese2); // use chinese2 for all the glyphs of "你好世界"
u8g2.setFontDirection(0);
u8g2.clearBuffer();
u8g2.setCursor(0, 15);
u8g2.print("kali论坛");
u8g2.setCursor(0, 30);
u8g2.print("bbskali.cn"); // Chinese "Hello World"
u8g2.setCursor(0, 45);
u8g2.print("kali黑客教学");
u8g2.sendBuffer();
delay(1000);
}效果如下：
项目三 显示多行文字
代码如下：
代码语言：javascript复制/*
*/
#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_SW_I2C u8g2(U8G2_R0, /* clock=*/ D2, /* data=*/ D1, /* reset=*/ U8X8_PIN_NONE); // All Boards without Reset of the Display
#define FONT u8g2_font_wqy14_t_gb2312b
//#define FONT u8g2_font_wqy16_t_chinese1
//#define FONT u8g2_font_wqy16_t_gb2312b
// The next two macros define the scroll speed of the short story
#define SCROLL_DELTA 2
#define SCROLL_DELAY 200
const char c_str[] =
"Shen Nongnn"
"KALI论坛介绍n"
"kali论坛创建于20n"
"17年，站长Priessn"
"本论坛基于kali安n"
"全研究和网络安全n"
"为方便小伙伴学习n"
"我们搭建了此论坛n"
"论坛学习完全免费n"
"我们的网址:n"
"bbskali,cnn"
"微信公众号：n"
"【kali黑客教学】n"
"感谢大家关注。n";
char buf[48]; // there are at most 8 chinese glyphs per line, max buf size is 8*3 = 24
uint8_t total_lines; // the total number of lines in the story
uint8_t i; // loop variable for the lines
uint8_t line_cnt; // number of lines to draw, usually equal to lines_per_draw
uint8_t start_line; // topmost visible line, derived from top_window_pos
uint8_t lines_per_draw; // how many lines to draw on the screen, derived from font and display height
uint16_t glyph_height; // height of the glyphs
uint16_t top_window_pos; // defines the display position in pixel within the text
uint16_t total_height; // total height in pixel, derived from font height and total_lines
u8g2_uint_t top_offset; // offset between the first visible line and the display
void setup(void) {
/* U8g2 Project: SSD1306 Test Board */
pinMode(D2, OUTPUT);
pinMode(D1, OUTPUT);
digitalWrite(10, 0);
digitalWrite(9, 0);
/* U8g2 Project: T6963 Test Board */
//pinMode(18, OUTPUT);
//digitalWrite(18, 1);
/* U8g2 Project: KS0108 Test Board */
//pinMode(16, OUTPUT);
//digitalWrite(16, 0);
/* U8g2 Project: LC7981 Test Board, connect RW to GND */
//pinMode(17, OUTPUT);
//digitalWrite(17, 0);
/* U8g2 Project: Pax Instruments Shield: Enable Backlight */
//pinMode(6, OUTPUT);
//digitalWrite(6, 0);
u8g2.begin();
/* select a font */
// u8g2.setFont(u8g2_font_wqy12_t_chinese1); // two unknown glyphs
//u8g2.setFont(u8g2_font_wqy12_t_chinese3); // two unknown glyphs
//u8g2.setFont(u8g2_font_wqy12_t_gb2312a); // ";" is missing
//u8g2.setFont(u8g2_font_wqy12_t_gb2312b); // all glyphs available
u8g2.setFont(FONT);
/* calculate the length of the text in lines */
total_lines = u8x8_GetStringLineCnt(c_str);
/* get the height of the glyphs */
glyph_height = u8g2.getMaxCharHeight();
/* calculate the height of the text in pixel */
total_height = (uint16_t)total_lines * (uint16_t)glyph_height;
/* calculate how many lines must be drawn on the screen */
lines_per_draw = u8g2.getDisplayHeight() / glyph_height;
lines_per_draw = 2;
/* start at the top of the text */
top_window_pos = 0;
}
void loop(void) {
start_line = top_window_pos / glyph_height;
top_offset = top_window_pos % glyph_height;
line_cnt = total_lines - start_line;
if ( line_cnt > lines_per_draw )
line_cnt = lines_per_draw;
u8g2.firstPage();
do {
for( i = 0; i < line_cnt; i )
{
/* copy a line of the text to the local buffer */
u8x8_CopyStringLine(buf, i start_line, c_str);
/* draw the content of the local buffer */
u8g2.drawUTF8(0, i*glyph_height-top_offset glyph_height, buf);
}
} while ( u8g2.nextPage() );
delay(SCROLL_DELAY);
top_window_pos = SCROLL_DELTA;
}
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本文链接：https://cloud.tencent.com/developer/article/1920918
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