材料:

 - NodeMCU

 - SSD1306 128*64 I2C接口

 

接线:

 

 

Arduino IDE,安装库:  "esp8266 by ESP8266 Community 2.7.4"(开发板管理) 和 "U8g2"(库)

 

选择开发板: NodeMCU 1.0 (ESP-12E Module)

Debug port: Serial1

 

代码样例:

#include <Arduino.h>
#include <U8g2lib.h>

#ifdef U8X8_HAVE_HW_SPI
#include <SPI.h>
#endif
#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif

U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ D5, /* data=*/ D6);   // ESP32 Thing, HW I2C with pin remapping


void setup(void) {
  u8g2.begin();
}

void loop(void) {
  u8g2.clearBuffer();                    // clear the internal memory
  u8g2.setFont(u8g2_font_ncenB08_tr);    // choose a suitable font
  u8g2.drawStr(0,10,"Hello World!");    // write something to the internal memory
  u8g2.sendBuffer();                    // transfer internal memory to the display
  delay(1000);  
}