H&R Logo on ESP32 Wifi Kit (simple demo)

hr-logo.ino

#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_SW_I2C u8g2(U8G2_R0, /* clock=*/ 15, /* data=*/ 4, /* reset=*/ 16);

int c = 0;
void setup(void) {
  u8g2.begin();
}

void drawLogo(void)
{
    u8g2.setFontMode(1);    // Transparent
    u8g2.setFontDirection(0);
    if(c == 0){
        // Hello
        u8g2.setFont(u8g2_font_inb24_mf);
        u8g2.drawStr(6, 30, "Hello!");
        c++;
    }
    else if(c == 1){
        // Welcome
        u8g2.setFont(u8g2_font_ncenB14_tr);
        u8g2.drawStr(8, 30, "welcome to");
        c++;
    }
    else{
        // LOGO
        u8g2.setFont(u8g2_font_inb24_mf);
        u8g2.drawStr(30, 30, "H&R");    
        u8g2.drawHLine(22, 38, 80);
        u8g2.drawHLine(22, 39, 80);
        c = 0;
    }
}

void drawURL(void)
{
    //u8g2.setFont(u8g2_font_4x6_tr);
    u8g2.setFont(u8g2_font_t0_11_tf);
    u8g2.drawStr(8,56,"http://eax.me/hnr/"); 
}

void loop(void) {
  u8g2.clearBuffer();
  drawLogo();
  drawURL();
  u8g2.sendBuffer();
  delay(2000);
}