epaper esp8266 (NodeMCU)

#include <SPI.h>
#include <epd2in7b.h>
#include "imagedata.h"
#include <epdpaint.h>
#include <Wire.h>

#include <ESP8266WiFi.h>        // Include the Wi-Fi library

#define SERIAL Serial
#define COLORED     1
#define UNCOLORED   0

const char* ssid     = "Dunduk";         // The SSID (name) of the Wi-Fi network you want to connect to
const char* password = "****";     // The password of the Wi-Fi network

void setup() {
  Epd epd;
  
  SERIAL.begin(115200);         // Start the Serial communication to send messages to the computer
  delay(10);
  SERIAL.println('\n');
  
  WiFi.begin(ssid, password);             // Connect to the network
  SERIAL.print("Connecting to ");
  SERIAL.print(ssid); Serial.println(" ...");

  int i = 0;
  while (WiFi.status() != WL_CONNECTED) { // Wait for the Wi-Fi to connect
    delay(1000);
    SERIAL.print(++i); Serial.print(' ');
  }

  SERIAL.println('\n');
  SERIAL.println("Connection established!");  
  SERIAL.print("IP address:\t");
  SERIAL.println(WiFi.localIP());         // Send the IP address of the ESP8266 to the computer


  SERIAL.println("Grove i2c port OK");
  if (epd.Init() != 0) 
  {
    SERIAL.println("e-Paper init failed");
    return;
  }
  else
    SERIAL.println("e-Paper init OK");
  epd.ClearFrame();

  unsigned char image[1024];
  Paint paint(image, 176, 24);    //width should be the multiple of 8 

  paint.Clear(UNCOLORED);
  paint.DrawStringAt(0, 0, "e-Paper Demo", &Font16, COLORED);
  epd.TransmitPartialBlack(paint.GetImage(), 16, 32, paint.GetWidth(), paint.GetHeight());

  paint.Clear(COLORED);
  paint.DrawStringAt(2, 2, "Hello world!", &Font20, UNCOLORED);
  epd.TransmitPartialRed(paint.GetImage(), 0, 64, paint.GetWidth(), paint.GetHeight());
  
  paint.SetWidth(64);
  paint.SetHeight(64);

  paint.Clear(UNCOLORED);
  paint.DrawRectangle(0, 0, 40, 50, COLORED);
  paint.DrawLine(0, 0, 40, 50, COLORED);
  paint.DrawLine(40, 0, 0, 50, COLORED);
  epd.TransmitPartialBlack(paint.GetImage(), 10, 130, paint.GetWidth(), paint.GetHeight());
  
  paint.Clear(UNCOLORED);
  paint.DrawCircle(32, 32, 30, COLORED);
  epd.TransmitPartialBlack(paint.GetImage(), 90, 120, paint.GetWidth(), paint.GetHeight());

  paint.Clear(UNCOLORED);
  paint.DrawFilledRectangle(0, 0, 40, 50, COLORED);
  epd.TransmitPartialRed(paint.GetImage(), 10, 200, paint.GetWidth(), paint.GetHeight());

  paint.Clear(UNCOLORED);
  paint.DrawFilledCircle(32, 32, 30, COLORED);
  epd.TransmitPartialRed(paint.GetImage(), 90, 190, paint.GetWidth(), paint.GetHeight());

  /* This displays the data from the SRAM in e-Paper module */
  epd.DisplayFrame();

  /* This displays an image */
  epd.DisplayFrame(IMAGE_BLACK, IMAGE_RED);

  /* Deep sleep */
  epd.Sleep();
}

void loop() { }