Adafruit_SSD1306库学习
原文链接:观感较好:https://blog.csdn.net/qq_41477556/article/details/112311181
文章目录
1.前言
2.SSD1306显示器介绍
3.库方法介绍
3.1.初始化构造器 *(声明OLED显示器)*
3.2 OLED初始化方法
3.2.1 begin方法
3.2.2 clearDisplay ------清屏
3.2.3 display ------ 显示内容
3.3绘制类方法
3.3.1 drawPixel——绘制像素点
3.3.2 drawFastHLine——绘制水平线
3.3.3 drawFastVLine——绘制竖直线
3.3.4 drawLine——绘制线
3.3.5 drawRect——绘制空心矩形
3.3.6 fillRect——绘制实心矩形
3.3.7 fillScreen —— 点亮全屏
3.3.8 drawCircle —— 绘制空心圆
3.3.9 fillCircle —— 绘制实心圆
3.3.10 drawTriangle —— 绘制空心三角形
3.3.11 fillTriangle —— 绘制实心三角形
3.3.12 drawRoundRect —— 绘制空心圆角矩形
3.3.13 fillRoundRect —— 绘制实心圆角
3.3.14 drawBitmap —— 绘制Bitmap图像
3.3.15 setTextSize —— 设置字体大小
3.3.16 setFont —— 设置字体
3.3.17 setCursor —— 设置光标位置
3.3.18 setTextWrap —— 设置是否自动换行
3.4 获取屏幕参数
3.5 屏幕滚动
3.5.1 startscrollright —— 向右滚动
3.5.2 startscrollleft —— 向左滚动
3.5.3 stopscroll —— 停止滚动
4.参考资料及博客
1.前言
在这里了解一下Adafruit_SSD1306和Adafruit_GFX这两个库
Adafruti_SSD1306是SSD1306 OLED屏幕的专用显示库
Adafruit_GFX库是LCD和OLED屏幕的通用父类,这是一个父类的图形库
Adafruit_GFX要与屏幕的专用显示库一同使用,子类库依赖父类库
例如:
SSD1306 OLED显示器:Adafruit_GFX和Adafruit_SSD1306
ST7735 1.8英寸彩色LCD显示器:Adafruit_GFX,Adafruit_ZeroDMA 和 Adafruit_ST7735
2.SSD1306显示器介绍
OLED显示器可以抽象为像素点,SSD1306显示器就是128x64像素点阵。
OLED显示屏有四个引脚:
SDA:数据线
SCK:时钟线
VDD:电源线(3.3V)
GND:地线
SSD1306驱动的IIC接口的显示屏的默认通信地址为0x3c/0x3d,具体的可通过如下程序查询:
#include <Wire.h>
void setup(){
Wire.begin();
Serial.begin(9600);
Serial.println("\nI2C Scanner");
}
void loop(){
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for (address = 1; address < 127; address++ ){
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0){
Serial.print("I2C device found at address 0x");
if (address < 16)
Serial.print("0");
Serial.print(address, HEX);
Serial.println(" !");
nDevices++;
}else if (error == 4){
Serial.print("Unknow error at address 0x");
if (address < 16)
Serial.print("0");
Serial.println(address, HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}
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打开串口监视器可查看通信地址
3.库方法介绍
3.1.初始化构造器 (声明OLED显示器)
Adafruit_ssd1306初始化构造器
SSD1306包括IIC和SPI两个版本,本篇现只介绍IIC版本,后续会更新SPI版本
Adafruit_SSD1306(uint8_t w, uint8_t h, TwoWire *twi=&Wire, int8_t rst_pin=-1,
uint32_t clkDuring=400000UL, uint32_t clkAfter=100000UL);
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参数介绍:
w:屏幕宽度像素
h:屏幕高度像素
twi:IIC总线实例,默认为&wrie
rst_pin:复位引脚,没有则填-1
clkDuring:SSD1306库调用期间的传输速率,默认为400000(400KHz)
clkAfter:SSD1306库非调用期间的传输速率,为了兼容IIC总线上其它设备,默认为100000(100KHz)
使用代码实例
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
//屏幕分辨率
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
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3.2 OLED初始化方法
3.2.1 begin方法
boolean Adafruit_SSD1306::begin(
uint8_t switchvcc=SSD1306_SWITCHCAPVCC,
uint8_t i2caddr=0,
boolean reset=true,
boolean periphBegin=true)
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参数介绍:
switchvcc: OLED的电压
i2caddr: OLED的通信地址
使用代码实例:
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
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3.2.2 clearDisplay ------清屏
此方法只清楚单片机缓存,不会显示在屏幕上,需配合display清屏
void Adafruit_SSD1306::clearDisplay(void)
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使用代码实例
display.clearDisplay(); // clears the screen and buffer
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3.2.3 display ------ 显示内容
display方法才会把内容推到显示屏上
使用代码实例
display.diaplay();
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3.3绘制类方法
因为Adafruit_SSD1306是继承的Adafruit_GFX,所以绘制类方法分为Adafruit_GFX的父类方法和Adafruit_SSD1306的子类方法:
Adafruit_GFX的父类方法:
drawCircle——绘制空心圆
fillCircle——绘制实心圆
drawTriangle——绘制空心三角形
fillTriangle——绘制实心三角形
drawRoundRect——绘制空心圆角方形
fillRoundRect——绘制实心圆角方形
drawBitmap——绘制Bitmap图像
drawXBitmap——绘制XBitmap图像
drawGrayscaleBitmap
drawRGBBitmap
drawChar——绘制字符
getTextBounds——绘制单个字母
setTextSize——设置字号
setFont——设置字体
setCursor——设置光标起始坐标
setTextColor——设置字体颜色
setTextWrap
Adafruit_SSD1306子类方法:
drawPixel——绘制像素点
drawFastHLine——绘制水平线
drawFastVLine——绘制垂直线
startscrollright——滚动到右边
startscrollleft——滚动到左边
startscrolldiagright——沿对角线右滚动
startscrolldiagleft——沿对角线左滚动
stopscroll——停止滚动
3.3.1 drawPixel——绘制像素点
void Adafruit_SSD1306::drawPixel(int16_t x, int16_t y, uint16_t color)
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参数介绍:
x:x坐标,横坐标
y:y坐标,纵坐标
color:绘制颜色,SSD1306_BLACK , SSD1306_WHITE , SSD1306_INVERT
使用代码实例
display.clearDisplay(); // clears the screen and buffer
display.drawPixel(64, 32, WHITE);
display.display();
delay(2000);
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3.3.2 drawFastHLine——绘制水平线
void Adafruit_SSD1306::drawFastHLine(
int16_t x, int16_t y, int16_t w, uint16_t color)
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参数介绍:
x:起始坐标x,取值范围:0 ~ width-1
y:起始坐标y,取值范围:0 ~ height-1
w:水平线长度,单位:像素
color:水平线颜色:SSD1306_BLACK , SSD1306_WHITE , SSD1306_INVERT
display.clearDisplay();
display.drawFastHLine(0,10,50,SSD1306_WHITE);
display.display();
delay(2000);
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3.3.3 drawFastVLine——绘制竖直线
void Adafruit_SSD1306::drawFastVLine(
int16_t x, int16_t y, int16_t h, uint16_t color)
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参数介绍:
x:起始坐标x,取值范围:0 ~ width-1
y:起始坐标y,取值范围:0 ~ height-1
h:竖直线长度
color:竖直线颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
使用代码示例:
display.clearDisplay();
display.drawFastVLine(0,10,50,SSD1306_WHITE);
display.display();
delay(2000);
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3.3.4 drawLine——绘制线
void Adafruit_GFX::drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
uint16_t color)
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参数介绍:
x0:起始坐标x
y0:起始坐标y
x1:终点坐标x
y1:终点坐标y
color:线颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.drawLine(10,10,100,60,SSD1306_WHITE);
display.display();
delay(2000);
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3.3.5 drawRect——绘制空心矩形
void Adafruit_GFX::drawRect(int16_t x, int16_t y, int16_t w, int16_t h,
uint16_t color)
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参数介绍:
x:左上角x坐标
y:左上角y坐标
w:矩形宽
h:矩形高
color:矩形颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.drawRect(0,0,128,64,SSD1306_WHITE);
display.display();
delay(20);
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3.3.6 fillRect——绘制实心矩形
void Adafruit_GFX::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
uint16_t color)
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参数介绍:
x:左上角x坐标
y:左上角y坐标
w:矩形宽
h:矩形高
color:矩形颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.fillRect(20,10,88,44,SSD1306_WHITE);
display.display();
delay(2000);
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3.3.7 fillScreen —— 点亮全屏
void Adafruit_GFX::fillScreen(uint16_t color)
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参数介绍:
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.fillScreen(SSD1306_WHITE);
display.display();
delay(2000);
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3.3.8 drawCircle —— 绘制空心圆
void Adafruit_GFX::drawCircle(int16_t x0, int16_t y0, int16_t r,
uint16_t color)
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参数介绍:
x0:圆心x坐标
y0:圆心y坐标
r:半径
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.drawCircle(64,32,32,SSD1306_WHITE);
display.display();
delay(2000);
3.3.9 fillCircle —— 绘制实心圆
void Adafruit_GFX::fillCircle(int16_t x0, int16_t y0, int16_t r,
uint16_t color)
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参数介绍:
x0:圆心x坐标
y0:圆心y坐标
r:半径
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.fillCircle(64,32,31,SSD1306_WHITE);
display.display();
delay(2000);
3.3.10 drawTriangle —— 绘制空心三角形
void Adafruit_GFX::drawTriangle(int16_t x0, int16_t y0,
int16_t x1, int16_t y1,
int16_t x2, int16_t y2,
uint16_t color)
参数介绍:
x0:第一个顶点x坐标
y0:第一个顶点y坐标
x1:第二个顶点x坐标
y1:第二个顶点y坐标
x2:第三个顶点x坐标
y2:第三个顶点y坐标
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.drawTriangle(63,0, 0,63, 127,63, SSD1306_WHITE);
display.display();
delay(2000);
3.3.11 fillTriangle —— 绘制实心三角形
void Adafruit_GFX::fillTriangle(int16_t x0, int16_t y0,
int16_t x1, int16_t y1,
int16_t x2, int16_t y2,
uint16_t color)
参数介绍:
x0:第一个顶点x坐标
y0:第一个顶点y坐标
x1:第二个顶点x坐标
y1:第二个顶点y坐标
x2:第三个顶点x坐标
y2:第三个顶点y坐标
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.fillTriangle(63,0, 0,63, 127,63, SSD1306_WHITE);
display.display();
delay(2000);
3.3.12 drawRoundRect —— 绘制空心圆角矩形
void Adafruit_GFX::drawRoundRect(int16_t x, int16_t y, int16_t w,
int16_t h, int16_t r, uint16_t color)
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参数介绍:
x:左上角x坐标
y:左上角y坐标
w:矩形宽
h:矩形高
r:矩形圆角半径
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
display.clearDisplay();
display.drawRoundRect(10,5,107, 43,3, SSD1306_WHITE);
display.display();
delay(2000);
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3.3.13 fillRoundRect —— 绘制实心圆角
void Adafruit_GFX::fillRoundRect(int16_t x, int16_t y, int16_t w,
int16_t h, int16_t r, uint16_t color)
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参数介绍:
x:左上角x坐标
y:左上角y坐标
w:矩形宽
h:矩形高
r:矩形圆角半径
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
代码示例:
//绘制实心圆角矩形
display.clearDisplay();
display.fillRoundRect(10,5,107,53,3, SSD1306_WHITE);
display.display();
delay(2000);
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3.3.14 drawBitmap —— 绘制Bitmap图像
使用PROGMEM的图形
drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
int16_t w, int16_t h, uint16_t color)
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参数介绍:
x:左上角x坐标
y:左上角y坐标
bitmap[]:图形数据
w:图形宽
h:图形高
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
int16_t w, int16_t h, uint16_t color, uint16_t bg)
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参数介绍:
bg:背景颜色(部分显示器支持)
使用ram的图形
drawBitmap(int16_t x, int16_t y, uint8_t *bitmap,
int16_t w, int16_t h, uint16_t color)
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参数介绍:
x:左上角x坐标
y:左上角y坐标
bitmap:图形数据
w:图形宽
h:图形高
color:颜色:SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT
drawBitmap(int16_t x, int16_t y, uint8_t *bitmap,
int16_t w, int16_t h, uint16_t color, uint16_t bg)
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bg:背景颜色(部分显示器支持)
代码示例:
//Bimap图像数据
static const unsigned char PROGMEM BimptPhoto_128x64[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xF0,0x01,0xF0,0x03,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x1E,0x3F,0x1C,0x1E,0xC0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x03,0xE0,0x07,0xF0,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x0F,0xFE,0x07,0xFF,0xC0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x70,0x03,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x07,0xFE,0x00,0x0F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x1C,0x00,0x00,0x00,0x03,0x80,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x7F,0xD0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x3F,0xC0,0x3E,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x7F,0xFF,0xFF,0xFF,0xE0,0x00,0x03,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,
0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,
0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00,
0x00,0x00,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,
0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x00,
0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x00,0x00,
0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,
0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,
0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x00,0x00,0x00,
0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,
0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x00,0x00,
0x00,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,
0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,
0x00,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,
0x00,0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,
0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
//显示Bimap图像
display.clearDisplay();
display.drawBitmap(0,0,BimptPhoto_128x64,128,64,SSD1306_WHITE);
display.display();
delay(2000);
3.3.15 setTextSize —— 设置字体大小
单参数
void Adafruit_GFX::setTextSize(uint8_t s)
1
参数介绍:
s:字体大小倍数,s为1时为6x8,s为2时为12x16
代码示例:
display.clearDisplay();
display.setTextSize(1); //选择字号
display.setTextColor(WHITE); //字体颜色
display.setCursor(0,8);
display.print("setTextSize: 1");
display.display();
delay(2000);
双参数
void Adafruit_GFX::setTextSize(uint8_t s_x, uint8_t s_y)
1
参数介绍:
s_x:字体横向倍数大小
s_y:字体纵向倍数大小
代码示例:
display.clearDisplay();
display.setTextSize(1); //选择字号
display.setTextColor(WHITE); //字体颜色
display.setTextSize(1,2);
display.setCursor(0,20);
display.print("setTextSize: 6x16");
delay(2000);
3.3.16 setFont —— 设置字体
void Adafruit_GFX::setFont(const GFXfont *f)
1
参数设置:
f:使用display.print()时的字体,不使用此函数系统默认为6x8
暂时没整明白怎么使用
3.3.17 setCursor —— 设置光标位置
void setCursor(int16_t x, int16_t y)
1
参数介绍:
x:光标顶点x坐标
y:光标顶点y坐标
代码示例:
display.clearDisplay();
display.setTextSize(1); //选择字号
display.setTextColor(WHITE); //字体颜色
display.setCursor(0,0);
display.print("setCursor(0,0)");
display.setCursor(0,8);
display.print("setCursor(0,8)");
display.display();
delay(2000);
3.3.18 setTextWrap —— 设置是否自动换行
void setTextWrap(boolean w) { wrap = w; }
1
参数介绍:
w:true or false
3.4 获取屏幕参数
获取屏幕高度
int16_t width(void)
1
获取屏幕宽度
int16_t height(void)
1
获取屏幕旋转角度
uint8_t getRotation(void)
1
获取光标x坐标
int16_t getCursorX(void)
1
获取光标y坐标
int16_t getCursorY(void)
1
3.5 屏幕滚动
3.5.1 startscrollright —— 向右滚动
void Adafruit_SSD1306::startscrollright(uint8_t start, uint8_t stop)
1
代码示例:
display.clearDisplay();
display.setTextSize(1); //选择字号
display.setTextColor(WHITE); //字体颜色
display.setCursor(8,32);
display.setTextWrap(false);
display.print("ABC");
display.startscrollright(31,40);
display.display();
delay(5000);
3.5.2 startscrollleft —— 向左滚动
void Adafruit_SSD1306::startscrollleft(uint8_t start, uint8_t stop)
1
代码示例:
display.clearDisplay();
display.setTextSize(1); //选择字号
display.setTextColor(WHITE); //字体颜色
display.setCursor(110,32);
display.setTextWrap(false);
display.print("abcdefghiJKLMNOPQRSTUVWXYZ");
display.startscrollleft(31,40);
display.display();
delay(5000);
3.5.3 stopscroll —— 停止滚动
void Adafruit_SSD1306::stopscroll(void)
1
4.参考资料及博客
深入学习 OLED Adafruit_SSD1306库(8266+arduino)
关于Arduino&SSD1306OLED(IIC)显示的学习
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版权声明:本文为CSDN博主「欧阳萱萱」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。
原文链接:https://blog.csdn.net/qq_41477556/article/details/112311181