Arduino驱动OLED屏幕 – 太极创客 |
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点击返回Arduino显示屏页面 OLED 屏幕应用 前言 模块介绍 模块尺寸 接口定义 Arduino控制OLED 1 OLED显示文字 电路连接 示例程序 效果演示 2 OLED显示汉字 电路连接 示例程序 效果演示 3 OLED显示图片 电路连接 示例程序 效果演示 相关资源 1 取模软件PCtoLCD2002 2 IIC设备扫描获取地址前言 相信在您的创客路上, 有许多项目需要进行图像化人机界面进行显示文本或图形, 一直以来LED和LCD是传统选择, 但近些年来, 有一种显示器越来越流行—-OLED OLED应用于各种大小显示需求, 大到电视屏幕, 小到微型智能穿戴设备的显示器都是它的用武之地. 在各种照明条件下它都能熠熠生辉, 且消耗的电流很小! OLED相对于LCD等有着极大的优势 OLED是一种利用多层有机薄膜结构产生电致发光的器件,它很容易制作,而且只需要低的驱动电压,这些主要的特征使得OLED在满足平面显示器的应用上显得非常突出。OLED显示屏比LCD更轻薄、亮度高、功耗低、响应快、清晰度高、柔性好、发光效率高,能满足消费者对显示技术的新需求。全球越来越多的显示器厂家纷纷投入研发,大大的推动了OLED的产业化进程。(资料来源于百度百科) 以上介绍了OLED的优势, 相信大家都对如何使用Arduino去控制OLED显示比较好奇, 因此本篇将对Arduino如何控制OLED展开说明,以创客朋友们常用的OLED 0.96 IIC 128×64模块进行实例应用讲解其他尺寸的OLED可参考本教程进行学习和开发 模块介绍 OLED0.96屏幕样图首先对OLED 0.96 IIC 128x64模块里的几个参数进行说明, 0.96指的是屏幕的显示尺寸0.96inch, 128×64指的是屏幕的分辨率为128×64, 而IIC指的是该模块使用IIC协议进行通讯, (关于Arduino-IIC协议可参考Arduino-Wire) 以下是OLED 0.96 12864屏幕的基本介绍 高分辨率:128×64(和12864同分辨率,高PPI) 超大可视角度:大于160°(显示屏中可视角度最大的一种屏幕) 超低功耗:正常显示0.06w(远低于TFT显示屏) 宽电压供电(3V~5V),兼容3.3V和5V电平逻辑,无需电平转换芯片 IIC接口只需2个IO轻松点亮 工作温度范围为工业级(-20℃~70℃) 军工级工艺标准,长期稳定工作 提供丰富的多平台例程,提供底层驱动技术支持 黄蓝、白、蓝三种颜色显示方案可选 模块参数 名称 颜色分类 显示颜色 白色 蓝色 黄蓝双色 SKU MC096GW MC096GB MC096GY 尺寸 0.96(inch) 类型 OLED OLED驱动芯片 SSD1306 分辨率 128*64 (Pixel) 模块接口 IIC,①-GND,②-VCC,③-SCL,④-SDA 有效显示区域 21.744×10.864(mm) 模块尺寸 27.3×27.8(mm) 视角 >160° 工作温度 -20℃~70℃ 存储温度 -30℃~80℃ 工作电压 3.3V / 5V 功耗 全亮约为25mA,全灭约为1.5mA。 产品重量 15(g) 模块尺寸为了方便更多创客朋友们开发自己的OLED创客作品, 以下提供OLED0.96的模块尺寸图供大家参考 资料来源于lcdwiki-OLED0.96 接口定义OLED0.96 IIC模块使用IIC通信接口,只需要接4根线就可以完成OLED屏数据通信 VCC:电源正极(接5V电源) GND:电源负极(接地) SCL:IIC时钟信号线 SDA:IIC数据信号线VCC接到开发板的5V电源引脚上,GND接到开发板GND引脚上,SCL和SDA需要根据不同的开发板引脚定义来接线(可参考Arduino-Wire) 该OLED模块的IIC地址为0x3C Arduino控制OLED我们使用Adafruit_SSD1306库来更加快捷高效的实现Arduino控制OLED, 在使用这个库时,需要依赖Adafruit-GFX-Library库才能使其正常工作,因此您需要在您的ArduinoIDE同时安装这两个库, 此外您可以通过Arduino自带的库管理器来安装,在安装时,如果出现以下情况, 点击Install all即可,这是Adafruit-GFX-Library的依赖 OLED0.96依赖库安装ArduinoArduino使用硬件IIC,芯片内部已经对IIC引脚做了定义,因此软件上不需要再对IIC引脚进行定义,只是不同型号的单片机,IIC引脚定义不一样,需要在接线上根据开发板做调整。
我们将以控制OLED 0.96 I2C 屏幕为例子进行说明。无论你手里的OLED 0.96是单色的还是双色的都没关系, 这些显示器都是基于SSD1306 OLED驱动芯片,因此它们都可以使用Adafruit_SSD1306库来控制显示。 在开始之前,请大家在屏幕建立一个坐标系的概念,因为在程序里,位置都是以坐标的形式去定位的,以OLED 0.96 128X64为例,面向屏幕,以屏幕左上角为坐标原点,横向向右是X轴,竖向向下是Y轴 OLED0.96坐标系建立 1 OLED显示文字电路连接 示例程序 Arduino 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970 /********************************************************************** 程序名称/Program name : words_display 团队/Team : 太极创客团队 / Taichi-Maker (www.taichi-maker.com) 作者/Author : Dapenson 日期/Date(YYYYMMDD) : 2020/07/01 程序目的/Purpose : 使用OLED0.96 IIC 12864显示文字 ----------------------------------------------------------------------- 修订历史/Revision History 日期/Date 作者/Author 参考号/Ref 修订说明/Revision Description ----------------------------------------------------------------------- 其它说明:***********************************************************************/ // 引入IIC通讯所需的Wire库文件// 教程参考http://www.taichi-maker.com/homepage/reference-index/arduino-library-index/wire-library/#include // 引入驱动OLED0.96所需的库#include #include #define SCREEN_WIDTH 128 // 设置OLED宽度,单位:像素#define SCREEN_HEIGHT 64 // 设置OLED高度,单位:像素 // 自定义重置引脚,虽然教程未使用,但却是Adafruit_SSD1306库文件所必需的#define OLED_RESET 4Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); void setup(){ // 初始化Wire库 // Wire.begin(); // 初始化OLED并设置其IIC地址为 0x3C display.begin(SSD1306_SWITCHCAPVCC, 0x3C);} void loop(){ words_display(); display.display();} void words_display(){ // 清除屏幕 display.clearDisplay(); // 设置字体颜色,白色可见 display.setTextColor(WHITE); //设置字体大小 display.setTextSize(1.5); //设置光标位置 display.setCursor(0, 0); display.print("TaichiMaker"); display.setCursor(0, 20); display.print("time: "); //打印自开发板重置以来的秒数: display.print(millis() / 1000); display.print(" s"); display.setCursor(0, 40); display.print("Author: "); display.print("Dapenson");} 效果演示 2 OLED显示汉字 汉字的显示需要对文字进行取模操作,紧接着使用drawBitmap()函数对取模生成的数组进行显示 汉字取模1 打开取模软件,切换到字符模式 OLED0.96文字取模Arduino2 在菜单栏区设置字体和尺寸选择 OLED0.96文字取模Arduino3 字模选项设置,设置之后点击确定按钮
4 输入字符,点击生成子模, 生成之后需要对生成的数据进行变量赋值和加工,具体格式参考示例程序 OLED0.96文字取模 电路连接 示例程序hans_display.ino Arduino 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475 /********************************************************************** 程序名称/Program name : hans_display 团队/Team : 太极创客团队 / Taichi-Maker (www.taichi-maker.com) 作者/Author : Dapenson 日期/Date(YYYYMMDD) : 2020/07/01 程序目的/Purpose : 使用OLED0.96 IIC 12864显示汉字 ----------------------------------------------------------------------- 修订历史/Revision History 日期/Date 作者/Author 参考号/Ref 修订说明/Revision Description ----------------------------------------------------------------------- 其它说明:***********************************************************************/ // 引入IIC通讯所需的Wire库文件// 教程参考http://www.taichi-maker.com/homepage/reference-index/arduino-library-index/wire-library/#include #include "text.h" // 引入驱动OLED0.96所需的库#include #include #define SCREEN_WIDTH 128 // 设置OLED宽度,单位:像素#define SCREEN_HEIGHT 64 // 设置OLED高度,单位:像素 // 自定义重置引脚,虽然教程未使用,但却是Adafruit_SSD1306库文件所必需的#define OLED_RESET 4Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); void setup(){ // 初始化OLED并设置其IIC地址为 0x3C display.begin(SSD1306_SWITCHCAPVCC, 0x3C);} void loop(){ hans_display_0(); hans_display_1();} void hans_display_0(void){ // 显示之前清屏 display.clearDisplay(); // 显示文字 (左上角x坐标,左上角y坐标, 图形数组, 图形宽度像素点, 图形高度像素点, 设置颜色) display.drawBitmap(20 * 1, 16, hans_tai, 16, 16, 1); display.drawBitmap(20 * 2, 16, hans_ji, 16, 16, 1); display.drawBitmap(20 * 3, 16, hans_chuang, 16, 16, 1); display.drawBitmap(20 * 4, 16, hans_ke, 16, 16, 1); //显示图形 display.display(); delay(2000);} void hans_display_1(void){ // 显示之前清屏 display.clearDisplay(); // 显示文字 (左上角x坐标,右上角y坐标, 图形数组, 图形宽度像素点, 图形高度像素点, 设置颜色) display.drawBitmap(20 * 1, 16, hans_tai1, 32, 32, 1); display.drawBitmap(20 * 2, 16, hans_ji1, 32, 32, 1); display.drawBitmap(20 * 3, 16, hans_chuang1, 32, 32, 1); display.drawBitmap(20 * 4, 16, hans_ke1, 32, 32, 1); //显示图形 display.display(); delay(2000);}
text.h Arduino 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061 static const unsigned char PROGMEM hans_tai[] = { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0xFF, 0xFE, 0x01, 0x00, 0x01, 0x00, 0x02, 0x80, 0x02, 0x80, 0x04, 0x40, 0x04, 0x40, 0x0A, 0x20, 0x11, 0x10, 0x21, 0x08, 0xC0, 0x06 /*"太",0*/}; static const unsigned char PROGMEM hans_ji[] = { 0x10, 0x00, 0x13, 0xFC, 0x10, 0x84, 0x10, 0x88, 0xFC, 0x88, 0x10, 0x90, 0x30, 0x9C, 0x38, 0x84, 0x55, 0x44, 0x55, 0x44, 0x91, 0x28, 0x11, 0x28, 0x12, 0x10, 0x12, 0x28, 0x14, 0x44, 0x11, 0x82}; /*极",1*/ static const unsigned char PROGMEM hans_chuang[] = { 0x08, 0x04, 0x08, 0x04, 0x14, 0x04, 0x12, 0x24, 0x21, 0x24, 0x40, 0xA4, 0xBE, 0x24, 0x22, 0x24, 0x22, 0x24, 0x22, 0x24, 0x2A, 0x24, 0x24, 0x24, 0x20, 0x84, 0x20, 0x84, 0x1F, 0x94, 0x00, 0x08}; /*"创",2*/ static const unsigned char PROGMEM hans_ke[] = { 0x02, 0x00, 0x01, 0x00, 0x7F, 0xFE, 0x40, 0x02, 0x88, 0x04, 0x0F, 0xF0, 0x10, 0x20, 0x2C, 0x40, 0x03, 0x80, 0x1C, 0x70, 0xE0, 0x0E, 0x1F, 0xF0, 0x10, 0x10, 0x10, 0x10, 0x1F, 0xF0, 0x10, 0x10}; /*"客",3*/ static const unsigned char PROGMEM hans_tai1[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x33, 0x00, 0x00, 0x00, 0x2F, 0x00, 0x00, 0x00, 0x3F, 0x80, 0x00, 0x00, 0x69, 0x00, 0x00, 0x02, 0xB0, 0x00, 0x00, 0x03, 0x60, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x51, 0x00, 0x00, 0x00, 0x59, 0x00, 0x00, 0x00, 0x8D, 0x00, 0x00, 0x00, 0x8F, 0x00, 0x00, 0x01, 0xA7, 0x00, 0x00, 0x01, 0x3B, 0x00, 0x00, 0x06, 0x3B, 0x80, 0x00, 0x00, 0x13, 0xC0, 0x00, 0x00, 0x01, 0xC0, 0x00, 0x00, 0x01, 0xE0, 0x00, 0x00, 0x00, 0xE0, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; /*"太",0*/ static const unsigned char PROGMEM hans_ji1[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x80, 0x00, 0x00, 0x41, 0x00, 0x00, 0x00, 0x63, 0x00, 0x00, 0x00, 0x66, 0x00, 0x00, 0x00, 0xCA, 0x00, 0x00, 0x01, 0xFA, 0xC0, 0x00, 0x02, 0xAD, 0xC0, 0x00, 0x0C, 0xD7, 0xC0, 0x00, 0x09, 0xD4, 0xC0, 0x00, 0x01, 0xD0, 0xC0, 0x00, 0x02, 0xD8, 0xC0, 0x00, 0x03, 0xE5, 0xC0, 0x00, 0x07, 0xA7, 0x80, 0x00, 0x05, 0xA3, 0x80, 0x00, 0x05, 0xB7, 0xA0, 0x00, 0x0D, 0xAF, 0xC0, 0x00, 0x00, 0xE7, 0xC0, 0x00, 0x00, 0x03, 0xE0, 0x00, 0x00, 0x02, 0x70, 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}; /*"极",1*/ static const unsigned char PROGMEM hans_chuang1[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x20, 0x20, 0x00, 0x00, 0x60, 0x20, 0x00, 0x00, 0x60, 0x60, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00, 0xD8, 0xC0, 0x00, 0x00, 0xB8, 0xC0, 0x00, 0x01, 0x61, 0x40, 0x00, 0x01, 0xD1, 0x40, 0x00, 0x02, 0x35, 0x40, 0x00, 0x02, 0x72, 0x40, 0x00, 0x04, 0xB2, 0x40, 0x00, 0x05, 0x36, 0x40, 0x00, 0x03, 0xB6, 0x40, 0x00, 0x00, 0xEC, 0x40, 0x00, 0x00, 0xEC, 0x40, 0x00, 0x00, 0xF4, 0x40, 0x00, 0x01, 0x34, 0x40, 0x00, 0x01, 0x70, 0xE0, 0x00, 0x01, 0xEF, 0xE0, 0x00, 0x01, 0xC1, 0xC0, 0x00, 0x00, 0x80, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; /*"创",2*/ static const unsigned char PROGMEM hans_ke1[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x47, 0x00, 0x00, 0x00, 0x8F, 0x00, 0x00, 0x00, 0x96, 0x00, 0x00, 0x00, 0xAC, 0x00, 0x00, 0x01, 0x7C, 0x00, 0x00, 0x01, 0xD4, 0x00, 0x00, 0x01, 0x68, 0x00, 0x00, 0x00, 0xD9, 0x80, 0x00, 0x02, 0x9F, 0xE0, 0x00, 0x01, 0xFF, 0xE0, 0x00, 0x00, 0x5F, 0xC0, 0x00, 0x00, 0xB6, 0x00, 0x00, 0x07, 0x6E, 0x00, 0x00, 0x00, 0xCC, 0x00, 0x00, 0x00, 0xDF, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; /*"客",3*/效果演示 3 OLED显示图片 图片的显示需要对图片进行取模操作,再使用drawBitmap()函数对取模生成的数组进行显示,下面介绍如何对图片进行取模操作 图片取模1 打开取模软件,切换到图形模式 2 打开图片或新建图片 图形模式有三种方法可以处理图片(如下图所示) A、点击文件->打开,打开现有的BMP单色图片 B、点击打开图片按钮打开现有的BMP单色图片 C、点击新建图片按钮,设置宽度和高度,新建一幅单色BMP图片 3 打开图片之后,点击生成子模,生成之后需要对生成的数据进行变量赋值和加工,具体格式参考示例程序 电路连接 示例程序 Arduino 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129 /********************************************************************** 程序名称/Program name : words_display 团队/Team : 太极创客团队 / Taichi-Maker (www.taichi-maker.com) 作者/Author : Dapenson 日期/Date(YYYYMMDD) : 2020/07/01 程序目的/Purpose : 使用OLED0.96 IIC 12864显示图片 ----------------------------------------------------------------------- 修订历史/Revision History 日期/Date 作者/Author 参考号/Ref 修订说明/Revision Description ----------------------------------------------------------------------- 其它说明:***********************************************************************/ // 引入IIC通讯所需的Wire库文件// 教程参考http://www.taichi-maker.com/homepage/reference-index/arduino-library-index/wire-library/#include // 引入驱动OLED0.96所需的库#include #include #define SCREEN_WIDTH 128 // 设置OLED宽度,单位:像素#define SCREEN_HEIGHT 64 // 设置OLED高度,单位:像素 // 自定义重置引脚,虽然教程未使用,但却是Adafruit_SSD1306库文件所必需的#define OLED_RESET 4Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); static const unsigned char PROGMEM panda_bmp[] = 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void setup(){ // 初始化OLED并设置其IIC地址为 0x3C display.begin(SSD1306_SWITCHCAPVCC, 0x3C);} void loop(){ bmp_display();} void bmp_display(void){ // 显示前清屏 display.clearDisplay(); // 将图片显示在中心位置 display.drawBitmap(0,0,panda_bmp, 96, 96, 1); // 将内容显示到屏幕 display.display(); delay(1000);} 效果演示 相关资源 1 取模软件PCtoLCD2002下载地址 2 IIC设备扫描获取地址当您不确定您的屏幕IIC地址时,可以使用以下示例程序进行IIC地址获取 将您的设备连接好之后,烧录以下示例程序并打开串口监视器即可获取当前设备的IIC地址 Arduino 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 #include void setup() { Wire.begin(); Serial.begin(9600); while (!Serial); //太极创客 www.taichi-maker.com Serial.println("\nI2C Scanner");} void loop() { int nDevices = 0; Serial.println("Scanning..."); for (byte address = 1; address |
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