2.esp 8266 连接oledqt 显示器

项目--加载库 要安装  

SSD1306,

GFX Library

 

 

 

///   oled  ////-----------------------

/*********

  Rui Santos

  Complete project details at https://randomnerdtutorials.com 

*********/

 

#include <Wire.h>

#include <Adafruit_GFX.h>

#include <Adafruit_SSD1306.h>

 

#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)

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

 

void setup() {

  Serial.begin(115200);

 

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64

    Serial.println(F("SSD1306 allocation failed"));

    for(;;);

  }

  delay(2000);

  display.clearDisplay();

 

  display.setTextSize(1);

  display.setTextColor(WHITE);

  display.setCursor(0, 10);

  // Display static text

  display.println("Hello, world!");

  display.display();

}

 

void loop() { 

}

///   oled  ////-----------------------