I2C驱动的128x64 OLED
I2C (Inter-Integrated Circuit) 集成电路总线是I2CBus的简称, 是一种串行通信总线, 使用多主从架构. 飞利浦公司在1980年代为了让主板, 嵌入式系统或手机用以连接低速周边设备而发展. I2C的正确读法为"I-squared-C"。
I2C只使用两条双向漏极开路(Open Drain): 串行数据SDA及串行时钟频率SCL总线, 且利用上拉电阻将两条总线的电位上拉. I2C允许相当大的工作电压范围, 但典型的电压准位为+3.3V或+5V. I2C的参考设计使用一个7bit长度的地址空间但保留了16个地址, 所以在一组总线最多可和112个节点通信. 常见的I2C总线依传输速率的不同而有不同的模式: 标准模式100 Kbit/s, 低速模式10 Kbit/s, 但时钟频率可被允许下降至零, 这代表可以暂停通信. 而新一代的I2C总线可以和更多的节点(支持10比特长度的地址空间)以更快的速率通信: 快速模式400 Kbit/s, 高速模式3.4 Mbit/s.
在单片机中使用I2C通信协议的时候, 需要编写程序去模拟I2C总线的通信, 对于I2C通信协议需要补充的一点是: 在实际通信传输数据时, SCL总线拉高的时间只要大于1.5μs都能够正常传输数据.
这块128x64 OLED的裸屏是由SSD1306驱动的. 该芯片专为共阴极 OLED 面板设计, SSD1306 中嵌入了对比度控制器, 显示 RAM 和晶振, 并因此减少了外部器件和功耗. 有 256级亮度控制, 数据/命令的发送有三种接口可选择: 6800/8000串口, I2C接口或 SPI 接口. 适用于多数简单的应用, 移动电话的屏显, MP3播放器和计算器等.
SSD1306本身支持多种总线驱动方式包括SPI以及并口等, 通过芯片的相应IO口拉低拉高来选择哪一种接口. 模块通过电阻将相应IO口配置固化使用了I2C接口方式，但可能你买到的同样的驱动芯片的模块会采用其他接口. 使用I2C接口时, SSD1306允许有最多两个7位的I2C地址, 同样通过相应的IO口拉低拉高来切换, 一般默认是0x3C. 在有些模块(不是所有, 有些PCB没有预留)的背面, 可以看到I2C地址选项提示, 需要改变模块I2C地址时只需要把提示位置的电阻取下焊接到另外一端即可. 要注意的是版上的I2C地址是加上了第零位读写位后的数值,
0x78 = 0x3c << 1 (0111 1000 ---- 0011 1100)
0x7A = 0x3d << 1 (0111 1010 --- 0011 1101)
SSD1306的从机地址
SSD1306 在发送或接受任何信息之前必须识别从机地址. 设备将会响应从机地址, 后面跟随着从机地址位(SA0 位)和读写选择位(R/W#位),格式如下:
b7 b6 b5 b4 b3 b2 b1 b0 0 1 1 1 1 0 SA0 R/W#
SA0 位为从机地址提供了一个位的拓展, 0111100 或 0111101 都可以做为 SSD1306 的从机地址. D/C#引脚作为 SA0 用于从机地址选择. R/W#为用来决定 I2C 总线接口的操作模式. R/W# = 1,读模式, R/W# = 0 写模式
安装Library
1. Adafruit_SSD1306
2. Adafruit-GFX-Library
修改Adafruit_SSD1306.h
设置正确的液晶分辨率, 将其中的SSD1306_128_64反注释, 将SSD1306_128_32注释掉
// #define SSD1306_128_64 #define SSD1306_128_32 // #define SSD1306_96_16
运行SSD1306 Example
例子 - 输出直线和文字以及文字滚动, 例子中能明显看出文字滚动时参数的含义
#include <SPI.h> #include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h> #define OLED_RESET 4 Adafruit_SSD1306 display(OLED_RESET); #if (SSD1306_LCDHEIGHT != 64) #error("Height incorrect, please fix Adafruit_SSD1306.h!"); #endif void setup() { Serial.begin(115200); display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // initialize with the I2C addr 0x3C (for the 128x64) display.display(); delay(2000); } void loop() { display.clearDisplay(); testdrawline(); delay(1000); display.clearDisplay(); testdrawchar(); delay(1000); display.clearDisplay(); testdrawchar2(); delay(2000); display.clearDisplay(); testscrolltext(); delay(2000); } void testdrawline() { for (int16_t i=0; i<display.width(); i+=2) { // x1 y1 x2 y2 display.drawLine(i, 0, i, display.height(), WHITE); display.display(); delay(5); } delay(250); display.clearDisplay(); for (int16_t i=0; i<display.height(); i+=2) { display.drawLine(0, i, display.width(), i, WHITE); display.display(); delay(5); } } void testdrawchar(void) { display.setTextSize(1); display.setTextColor(WHITE); display.setCursor(0,0); for (uint8_t i=0; i < 168; i++) { if (i == '\n') continue; display.write(i); if ((i > 0) && (i % 21 == 0)) display.println(); } display.display(); delay(1); } void testdrawchar2(void) { display.setTextSize(2); display.setTextColor(WHITE); uint8_t j = 47; for (uint8_t l=0; l < 4; l++) { display.setCursor(0,l*16); for (uint8_t i=0; i < 10; i++) { j++; if (j == '\n') continue; display.write(j); display.display(); delay(5); } } } void testscrolltext(void) { testdrawchar(); delay(5); // startscrollright(uint8_t start, uint8_t stop) // Activate a scroll to the right for rows start through stop The display is 16 rows tall. To scroll the whole display, run: display.scrollright(0x00, 0x0F) // Parameters: start First row to scroll, stop Last row to scroll display.startscrollright(0x00, 0x02); delay(1000); display.startscrollright(0x03, 0x05); delay(1000); display.stopscroll(); delay(1000); // Activate a scroll to the left for rows start through stop The display is 16 rows tall. To scroll the whole display, run: display.startscrollright(0x00, 0x0F) display.startscrollleft(0x00, 0x05); delay(2000); display.startscrollleft(0x00, 0x0F); delay(2000); display.stopscroll(); delay(1000); // Activate a scroll to the upper right for rows start through stop The display is 16 rows tall. display.startscrolldiagright(0x00, 0x03); delay(2000); display.startscrolldiagright(0x00, 0x07); delay(2000); // Activate a scroll to the upper left for rows start through stop The display is 16 rows tall. display.startscrolldiagleft(0x00, 0x03); delay(2000); display.startscrolldiagleft(0x00, 0x07); delay(2000); display.stopscroll(); }
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例子 - 输出位图(及汉字位图)
#include <SPI.h> #include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h> #define OLED_RESET 4 Adafruit_SSD1306 display(OLED_RESET); #if (SSD1306_LCDHEIGHT != 64) #error("Height incorrect, please fix Adafruit_SSD1306.h!"); #endif #define NUMFLAKES 5 #define XPOS 0 #define YPOS 1 #define DELTAY 2 #define LOGO16_GLCD_HEIGHT 16 #define LOGO16_GLCD_WIDTH 16 static const unsigned char PROGMEM logo16_glcd_bmp[] = { B00000000, B11000000, B00000001, B11000000, B00000001, B11000000, B00000011, B11100000, B11110011, B11100000, B11111110, B11111000, B01111110, B11111111, B00110011, B10011111, B00011111, B11111100, B00001101, B01110000, B00011011, B10100000, B00111111, B11100000, B00111111, B11110000, B01111100, B11110000, B01110000, B01110000, B00000000, B00110000 }; //中文：实 static const unsigned char PROGMEM str_1[] = { 0x02,0x00,0x01,0x00,0x7F,0xFE,0x40,0x02,0x88,0x84,0x04,0x80,0x04,0x80,0x10,0x80, 0x08,0x80,0x08,0x80,0xFF,0xFE,0x01,0x40,0x02,0x20,0x04,0x10,0x18,0x08,0x60,0x04 }; //中文：验 static const unsigned char PROGMEM str_2[] = { 0x00,0x20,0xF8,0x20,0x08,0x50,0x48,0x50,0x48,0x88,0x49,0x04,0x4A,0xFA,0x7C,0x00, 0x04,0x44,0x04,0x24,0x1D,0x24,0xE4,0xA8,0x44,0x88,0x04,0x10,0x2B,0xFE,0x10,0x00 }; //中文：室 static const unsigned char PROGMEM str_3[] = { 0x02,0x00,0x01,0x00,0x7F,0xFE,0x40,0x02,0x80,0x04,0x3F,0xF8,0x04,0x00,0x08,0x20, 0x1F,0xF0,0x01,0x10,0x01,0x00,0x3F,0xF8,0x01,0x00,0x01,0x00,0xFF,0xFE,0x00,0x00 }; void setup() { Serial.begin(115200); display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // initialize with the I2C addr 0x3C (for the 128x64) display.display(); delay(2000); } void loop() { display.clearDisplay(); display.drawBitmap(30, 16, logo16_glcd_bmp, 16, 16, WHITE); display.display(); delay(2000); display.drawBitmap(30, 16, logo16_glcd_bmp, 16, 16, BLACK); display.display(); delay(500); display.drawBitmap(30, 16, logo16_glcd_bmp, 16, 16, WHITE); display.display(); delay(500); display.clearDisplay(); display.drawBitmap(0, 0, str_1, 16, 16, WHITE); display.drawBitmap(16, 0, str_2, 16, 16, WHITE); display.drawBitmap(32, 0, str_3, 16, 16, WHITE); display.display(); delay(2000); display.clearDisplay(); testdrawbitmap(logo16_glcd_bmp, LOGO16_GLCD_HEIGHT, LOGO16_GLCD_WIDTH); } void testdrawbitmap(const uint8_t *bitmap, uint8_t w, uint8_t h) { uint8_t icons[NUMFLAKES][3]; // initialize for (uint8_t f=0; f< NUMFLAKES; f++) { icons[f][XPOS] = random(display.width()); icons[f][YPOS] = 0; icons[f][DELTAY] = random(8) + 2; Serial.print("x: "); Serial.print(icons[f][XPOS], DEC); Serial.print(" y: "); Serial.print(icons[f][YPOS], DEC); Serial.print(" dy: "); Serial.println(icons[f][DELTAY], DEC); } while (1) { // draw each icon for (uint8_t f=0; f< NUMFLAKES; f++) { display.drawBitmap(icons[f][XPOS], icons[f][YPOS], bitmap, w, h, WHITE); } display.display(); delay(200); // then erase it + move it for (uint8_t f=0; f< NUMFLAKES; f++) { display.drawBitmap(icons[f][XPOS], icons[f][YPOS], bitmap, w, h, BLACK); // move it icons[f][YPOS] += icons[f][DELTAY]; // if its gone, reinit if (icons[f][YPOS] > display.height()) { icons[f][XPOS] = random(display.width()); icons[f][YPOS] = 0; icons[f][DELTAY] = random(8) + 2; } } } }
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控制OLED对比度
初始化
#include <Wire.h> #include <Adafruit_GFX.h> #include <Adafruit_SSD1306.h> Adafruit_SSD1306 oledDisplay(OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);
自定义方法
void setContrast(Adafruit_SSD1306 *display, uint8_t contrast) { display->ssd1306_command(SSD1306_SETCONTRAST); display->ssd1306_command(contrast); }
然后通过这个方法控制,
setContrast(&oledDisplay, 128); //contrast is a number between 0 and 255. Use a lower number for lower contrast
实际测试效果看, contrast为0的时候依然很亮, 数字稍大一些就和255一样亮了.
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使用U8g2输出中文
安装library: U8g2
在Example里有PrintUTF8例子, 里面有中文输出, 注意: 这个并非所有汉字都能输出. 根据自己的硬件, 取消对应的注释
#include <Arduino.h> #include <U8g2lib.h> #ifdef U8X8_HAVE_HW_SPI #include <SPI.h> #endif #ifdef U8X8_HAVE_HW_I2C #include <Wire.h> #endif /* U8glib Example Overview: Frame Buffer Examples: clearBuffer/sendBuffer. Fast, but may not work with all Arduino boards because of RAM consumption Page Buffer Examples: firstPage/nextPage. Less RAM usage, should work with all Arduino boards. U8x8 Text Only Example: No RAM usage, direct communication with display controller. No graphics, 8x8 Text only. */ // Please UNCOMMENT one of the contructor lines below // U8g2 Contructor List (Frame Buffer) // The complete list is available here: https://github.com/olikraus/u8g2/wiki/u8g2setupcpp // Please update the pin numbers according to your setup. Use U8X8_PIN_NONE if the reset pin is not connected //U8G2_NULL u8g2(U8G2_R0); // null device, a 8x8 pixel display which does nothing //U8G2_SSD1306_128X64_NONAME_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1306_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 12, /* dc=*/ 4, /* reset=*/ 6); // Arduboy (Production, Kickstarter Edition) //U8G2_SSD1306_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1306_128X64_NONAME_F_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8); //U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); //U8G2_SSD1306_128X64_ALT0_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // same as the NONAME variant, but may solve the "every 2nd line skipped" problem //U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* reset=*/ 8); U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // All Boards without Reset of the Display //U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ 16, /* data=*/ 17, /* reset=*/ U8X8_PIN_NONE); // ESP32 Thing, pure SW emulated I2C //U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ 16, /* data=*/ 17); // ESP32 Thing, HW I2C with pin remapping //U8G2_SSD1306_128X64_NONAME_F_6800 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8); //U8G2_SSD1306_128X64_NONAME_F_8080 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8); //U8G2_SSD1306_128X64_VCOMH0_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // same as the NONAME variant, but maximizes setContrast() range //U8G2_SSD1306_128X64_ALT0_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // same as the NONAME variant, but may solve the "every 2nd line skipped" problem //U8G2_SH1106_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SH1106_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); //U8G2_SH1106_128X64_VCOMH0_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // same as the NONAME variant, but maximizes setContrast() range //U8G2_SH1106_128X64_WINSTAR_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // same as the NONAME variant, but uses updated SH1106 init sequence //U8G2_SH1107_64X128_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SH1107_128X128_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SH1107_128X128_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8); //U8G2_SH1107_SEEED_96X96_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1306_128X32_UNIVISION_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ 21, /* data=*/ 20, /* reset=*/ U8X8_PIN_NONE); // Adafruit Feather M0 Basic Proto + FeatherWing OLED //U8G2_SSD1306_128X32_UNIVISION_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // Adafruit Feather ESP8266/32u4 Boards + FeatherWing OLED //U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // Adafruit ESP8266/32u4/ARM Boards + FeatherWing OLED //U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ SCL, /* data=*/ SDA); // pin remapping with ESP8266 HW I2C //U8G2_SSD1306_64X48_ER_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // EastRising 0.66" OLED breakout board, Uno: A4=SDA, A5=SCL, 5V powered //U8G2_SSD1306_64X32_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); //U8G2_SSD1306_64X32_1F_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); //U8G2_SSD1306_96X16_ER_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // EastRising 0.69" OLED //U8G2_SSD1322_NHD_256X64_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8G2_16BIT in u8g2.h //U8G2_SSD1322_NHD_256X64_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8G2_16BIT in u8g2.h //U8G2_SSD1322_NHD_128X64_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1322_NHD_128X64_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1325_NHD_128X64_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1325_NHD_128X64_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1326_ER_256X32_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // experimental driver for ER-OLED018-1 //U8G2_SSD1327_SEEED_96X96_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // Seeedstudio Grove OLED 96x96 //U8G2_SSD1327_SEEED_96X96_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // Seeedstudio Grove OLED 96x96 //U8G2_SSD1327_MIDAS_128X128_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1327_MIDAS_128X128_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1329_128X96_NONAME_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1329_128X96_NONAME_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1305_128X32_NONAME_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1305_128X32_NONAME_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1309_128X64_NONAME0_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1309_128X64_NONAME0_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1309_128X64_NONAME2_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_SSD1309_128X64_NONAME2_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_LD7032_60X32_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* cs=*/ 9, /* dc=*/ 10, /* reset=*/ 8); // SW SPI Nano Board //U8G2_LD7032_60X32_F_4W_SW_I2C u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* reset=*/ U8X8_PIN_NONE); // NOT TESTED! //U8G2_UC1701_EA_DOGS102_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_UC1701_EA_DOGS102_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_PCD8544_84X48_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Nokia 5110 Display //U8G2_PCD8544_84X48_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Nokia 5110 Display //U8G2_PCF8812_96X65_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Could be also PCF8814 //U8G2_PCF8812_96X65_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Could be also PCF8814 //U8G2_HX1230_96X68_F_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8); //U8G2_HX1230_96X68_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_KS0108_128X64_F u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*dc=*/ 17, /*cs0=*/ 14, /*cs1=*/ 15, /*cs2=*/ U8X8_PIN_NONE, /* reset=*/ U8X8_PIN_NONE); // Set R/W to low! //U8G2_KS0108_ERM19264_F u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*dc=*/ 17, /*cs0=*/ 14, /*cs1=*/ 15, /*cs2=*/ 16, /* reset=*/ U8X8_PIN_NONE); // Set R/W to low! //U8G2_ST7920_192X32_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE); //U8G2_ST7920_192X32_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE); //U8G2_ST7920_128X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */); // Remember to set R/W to 0 //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE); //U8G2_ST7920_128X64_F_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8); //U8G2_ST7920_128X64_F_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8); //U8G2_ST7565_EA_DOGM128_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_EA_DOGM128_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_64128N_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_64128N_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_EA_DOGM132_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE); // DOGM132 Shield //U8G2_ST7565_EA_DOGM132_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE); // DOGM132 Shield //U8G2_ST7565_ZOLEN_128X64_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_ZOLEN_128X64_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_LM6059_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Adafruit ST7565 GLCD //U8G2_ST7565_LM6059_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Adafruit ST7565 GLCD //U8G2_ST7565_ERC12864_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_ERC12864_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_NHD_C12832_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_NHD_C12832_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_NHD_C12864_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7565_NHD_C12864_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7567_PI_132X64_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8); // Pax Instruments Shield, LCD_BL=6 //U8G2_ST7567_PI_132X64_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8); // Pax Instruments Shield, LCD_BL=6 //U8G2_ST7567_JLX12864_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7567_JLX12864_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST75256_JLX172104_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST75256_JLX172104_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST75256_JLX256128_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8g2 16 bit mode for this display //U8G2_ST75256_JLX256128_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8g2 16 bit mode for this display //U8G2_ST75256_JLX25664_F_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8); // Due, 2nd I2C, enable U8g2 16 bit mode for this display //U8G2_NT7534_TG12864R_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_NT7534_TG12864R_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_ST7588_JLX12864_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ 5); //U8G2_ST7588_JLX12864_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ 5); //U8G2_IST3020_ERC19264_F_6800 u8g2(U8G2_R0, 44, 43, 42, 41, 40, 39, 38, 37, /*enable=*/ 28, /*cs=*/ 32, /*dc=*/ 30, /*reset=*/ 31); // Connect WR pin with GND //U8G2_IST3020_ERC19264_F_8080 u8g2(U8G2_R0, 44, 43, 42, 41, 40, 39, 38, 37, /*enable=*/ 29, /*cs=*/ 32, /*dc=*/ 30, /*reset=*/ 31); // Connect RD pin with 3.3V //U8G2_IST3020_ERC19264_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_LC7981_160X80_F_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RW with GND //U8G2_LC7981_160X160_F_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RW with GND //U8G2_LC7981_240X128_F_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RW with GND //U8G2_SED1520_122X32_F u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*dc=*/ A0, /*e1=*/ A3, /*e2=*/ A2, /* reset=*/ A4); // Set R/W to low! //U8G2_T6963_240X128_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND //U8G2_T6963_256X64_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND //U8G2_SED1330_240X128_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FG with GND //U8G2_SED1330_240X128_F_6800 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8); // A0 is dc pin! //U8G2_RA8835_NHD_240X128_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect /RD = E with +5V, enable is /WR = RW, FG with GND, 14=Uno Pin A0 //U8G2_RA8835_NHD_240X128_F_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // A0 is dc pin, /WR = RW = GND, enable is /RD = E //U8G2_UC1604_JLX19264_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_UC1604_JLX19264_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_UC1608_ERC24064_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // SW SPI, Due ERC24064-1 Test Setup //U8G2_UC1608_ERC240120_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); //U8G2_UC1608_240X128_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // SW SPI, Due ERC24064-1 Test Setup //U8G2_UC1610_EA_DOGXL160_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE); //U8G2_UC1610_EA_DOGXL160_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE); //U8G2_UC1611_EA_DOGM240_F_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8); // Due, 2nd I2C, DOGM240 Test Board //U8G2_UC1611_EA_DOGM240_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Due, SW SPI, DOGXL240 Test Board //U8G2_UC1611_EA_DOGXL240_F_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8); // Due, 2nd I2C, DOGXL240 Test Board //U8G2_UC1611_EA_DOGXL240_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Due, SW SPI, DOGXL240 Test Board //U8G2_UC1611_EW50850_F_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 3, /*dc=*/ 16, /*reset=*/ 16); // 240x160, Connect RD/WR1 pin with 3.3V, CS is aktive high //U8G2_UC1638_160X128_F_4W_HW_SPI u8g2(U8G2_R2, /* cs=*/ 2, /* dc=*/ 3, /* reset=*/ 4); // Not tested //U8G2_SSD1606_172X72_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // eInk/ePaper Display //U8G2_SSD1607_200X200_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // eInk/ePaper Display, original LUT from embedded artists //U8G2_SSD1607_GD_200X200_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Good Display //U8G2_IL3820_296X128_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // WaveShare 2.9 inch eInk/ePaper Display, enable 16 bit mode for this display! //U8G2_IL3820_V2_296X128_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // ePaper Display, lesser flickering and faster speed, enable 16 bit mode for this display! // End of constructor list 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("Hello World!"); u8g2.setCursor(0, 40); u8g2.print("你好世界"); // Chinese "Hello World" u8g2.sendBuffer(); delay(1000); }
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