1.模块介绍
I2C显示屏(驱动为ssd1306,分辨率为128*64)
Arduino nano(Atmega328p)
2.模块连接
oled | 开发板 |
GND |
GND |
VCC | 3-5V |
SCL | A5 |
SDA | A4 |
3.安装库
4.运行代码
#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
int nFrames = 36;
void setup() {
Serial.begin(9600);
display.begin(SSD1306_SWITCHCAPVCC,0x3C);
display.display();
delay(1000);
display.clearDisplay();
}
void loop() {
for (int frame=0; frame < nFrames; frame++)
{
HariChord(frame);
}
for (int frame=(nFrames-1); frame >= 0; frame--)
{
HariChord(frame);
}
}
void HariChord(int frame)
{
display.clearDisplay();
int n = 7;
int r = frame * 64 / nFrames;
float rot = frame * 2*PI / nFrames;
for (int i=0; i<(n-1); i++)
{
float a = rot + i * 2*PI / n;
int x1 = 64 + cos(a) * r;
int y1 = 32 + sin(a) * r;
for (int j=i+1; j<n; j++)
{
a = rot + j * 2*PI / n;
int x2 = 64 + cos(a) * r;
int y2 = 32 + sin(a) * r;
display.drawLine(x1,y1, x2,y2, WHITE);
}
}
display.display();
}