// simple project using Arduino UNO and 128x64 OLED Display to display analog clock
// note - this project is meant for the 128x128 SH1107 OLED display, but WOKWI currently only supports 128x64 OLED display
// for this reason, the preview here only shows half of the design
// created by upir, 2023
// youtube channel: https://www.youtube.com/upir_upir

// YOUTUBE VIDEO: https://youtu.be/srgsBWHSNSQ

// links from the video:
// 128x128 SH1107 OLED Display: https://s.click.aliexpress.com/e/_DdOCQHj
// 128x64 SSD1306 OLED Display: https://s.click.aliexpress.com/e/_DCKdvnh
// Arduino UNO: https://s.click.aliexpress.com/e/_AXDw1h
// Arduino breadboard prototyping shield: https://s.click.aliexpress.com/e/_ApbCwx
// Photopea (online Photoshop-like tool): https://www.photopea.com/
// u8g2 documentation: https://github.com/olikraus/u8g2/wiki/u8gvsu8g2


// Related videos:
// Arduino Parking Sensor - https://youtu.be/sEWw087KOj0
// Turbo pressure gauge with Arduino and OLED display - https://youtu.be/JXmw1xOlBdk
// Arduino Car Cluster with OLED Display - https://youtu.be/El5SJelwV_0
// Knob over OLED Display - https://youtu.be/SmbcNx7tbX8
// Arduino + OLED = 3D ? - https://youtu.be/kBAcaA7NAlA
// Arduino OLED Gauge - https://youtu.be/xI6dXTA02UQ
// Smaller & Faster Arduino - https://youtu.be/4GfPQoIRqW8


#include <Arduino.h>
#include <U8g2lib.h> // u8g2 library for drawing on OLED display - needs to be installed in Arduino IDE first
#include <Wire.h> // wire library for IIC communication with the OLED display

U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0); // set the OLED display to 128x64px, HW IIC, no rotation, used in WOKWI
//U8G2_SH1107_128X128_1_HW_I2C u8g2(U8G2_R0); // final display, 128x128px [page buffer, size = 128 bytes], HW IIC connection

// IIC connection of the OLED display and Arduino UNO
// +5V > +5V
// GND > GND
// SCL (serial clock) > A5 or SCL
// SDA (serial data) > A4 or SDA

const uint8_t KeyPrev = 4;      //- кнопка
const uint8_t KeySelect = 5;    //выбор
const uint8_t KeyNext = 6;      //+

#define eq_width 7
#define eq_height 7
static const unsigned char eq[] U8X8_PROGMEM = {    //эквалайзер
  0x10, 0x10, 0x14, 0x14, 0x54, 0x54, 0x55, };
#define half_width 7
#define half_height 7
static const unsigned char half[] U8X8_PROGMEM = {  //полчаса
  0x1C, 0x2A, 0x49, 0x79, 0x41, 0x22, 0x1C, };
#define light_width 7
#define light_height 7
static const unsigned char light[] U8X8_PROGMEM = {  //подсветка
  0x49, 0x2A, 0x14, 0x63, 0x14, 0x2A, 0x49, };
#define sound_width 8
#define sound_height 8
static const unsigned char sound[] U8X8_PROGMEM = {  //звук
  0x08, 0x4C, 0x8B, 0xA9, 0xA9, 0x8B, 0x4C, 0x08, };


// hardcoded time values
int time_minutes = 10;
int time_hours = 10;
int time_seconds = 45;
uint8_t buttonlast = false;
int8_t hourstart = 7, hourstop = 23, set = 1;
bool flagpres = false;

const char *week [7] = {"Воскресение","Понедельник","Вторник","Среда","Четверг","Пятница","Суббота"};//день недели 7-4 11-2 5-1
const char *month [12] = {"Января","Февраля","Марта","Апреля","Мая ","Июня","Июля","Августа","Сентября","Октября","Ноября","Декабря"};

void setup(void) { // Arduino setup
	pinMode(KeyPrev, INPUT_PULLUP);   //кнопки 3 шт.
  pinMode(KeySelect, INPUT_PULLUP);
  pinMode(KeyNext, INPUT_PULLUP);
  u8g2.begin();  // begin the u8g2 library
  u8g2.enableUTF8Print();
  u8g2.setContrast(255); // set display contrast/brightness
}

void buttonControl(){                     //обработчик кнопок
  if(digitalRead(KeyNext) == LOW){         //button+
        if(!flagpres){
	        buttonlast = KeyNext;
	        flagpres = true;
	    }
	}		
	else if(digitalRead(KeyPrev) == LOW){    //button- poversav добавить к 2 кнопкам
        if(!flagpres){
	        buttonlast = KeyPrev;
	        flagpres = true;
		}
	}
	else if(digitalRead(KeySelect) == LOW){   //button select
          if(!flagpres){				 
	            buttonlast = KeySelect;
	            flagpres = true;
			}
	}else{
    if(flagpres){
		  if(buttonlast == KeyNext){
        switch(set){
        						case 1: if(hourstart < 23) {
											if(hourstart != hourstop){
												hourstart++;
											} else {hourstart = hourstart;}
										}	else  
                        //if(hourstart == hourstop){
                        //  if(hourstart == 23)
                        //    hourstart--; 
                        //  if(hourstart == 0)
                        //    hourstart++;
                        //} else 
                        { hourstart = 0; }
                        break;
						case 2: if(hourstop < 23) {
												hourstop++; 
											//if(hourstop <= hourstart){
												//hourstop = hourstart+1;
											//}
										} else { hourstop = 0; } break;
        }
      }else 
				if(buttonlast == KeyPrev){
          switch(set) {
							case 1: if(hourstart > 0){ 
												if(hourstart != hourstop) {
													hourstart--;
												} else {hourstart = hourstart;}
											}	else 
                        //if(hourstart == hourstop){
                        //  if(hourstart == 23)
                        //    hourstart--; 
                        //  if(hourstart == 0)
                        //    hourstart++;
                        //} else
                        {hourstart = 23;}
                        break;
						  case 2: if(hourstop > 0) { 
												  hourstop--; 
												//if(hourstop <= hourstart){
												//   hourstop = hourstart+1;
											 // }
											}	else { hourstop = 23; } break;
          }
        }
			    else if(buttonlast == KeySelect){
            if(set < 2){
									set++;
            } else{ set = 1;}
          }
      flagpres = false;
    }
  }
}

void loop(void) { // main Arduino loop
  u8g2.firstPage(); // select the first page of the display (page is 128x8px), since we are using the page drawing method of the u8g2 library
  do { // draw

    /*u8g2.setFont(u8g2_font_6x13_t_cyrillic);
		u8g2.setCursor(42, 11);
		u8g2.print(week[4]);//день недели
		u8g2.setCursor(115, 11);
		u8g2.print(27);                  //секунды					
		//u8g2.setFont(u8g2_font_osb35_tn);//24х32рх  альтернатива u8g2_font_osr35_tn
		//u8g2.setFont(u8g2_font_osr35_tn);
    u8g2.setFont(u8g2_font_mystery_quest_48_tn);//x+3px 
    u8g2.setCursor(2+3, 50);
		u8g2.print(20);                  //часы
    u8g2.drawFrame(2,13,56,39);
		if(int(27)%2 == 0)
			u8g2.drawStr(56+3, 48, " ");
		else	
			u8g2.drawStr(56+3, 48, ":");   //вывод мигающего двоеточия		
		u8g2.setCursor(70+3, 50);           
		u8g2.print(57);                  //минуты
    u8g2.drawFrame(70,13,56,39);
		u8g2.setFont(u8g2_font_6x13_t_cyrillic);
		u8g2.setCursor(30, 62);
		u8g2.print(29);                  //число
		u8g2.setCursor(50, 62);
		u8g2.print(month[10-1]); //месяц
		u8g2.setCursor(103, 62);
		u8g2.print(2024);*/

		
    u8g2.setFont(u8g2_font_6x13_t_cyrillic);
		u8g2.drawUTF8(0, 10, "Кукушка");
		//u8g2.drawUTF8(49, 10, "с");		
		u8g2.setCursor(49, 11);
		u8g2.print(hourstart);                             //время начала куку
		//u8g2.drawUTF8(66, 10, "-");
    u8g2.drawHLine(66, 6, 5);                         //горизонтальная линия
		u8g2.setCursor(77, 11);
		u8g2.print(hourstop);                              //время конец куку

		/*if(1)                                     //режимы работы будильника
			switch(1){ 
				case 1: u8g2.drawUTF8(97, 11, "Ежедн");break;		
				case 2: u8g2.drawUTF8(97, 11, "Рабоч");break;
				case 3: u8g2.drawUTF8(97, 11, "Выхдн");break;
				case 4: u8g2.drawUTF8(97, 11, "Сегдн");break;
			} else
			if(0){
				u8g2.drawUTF8(97, 11, "Отклч");
			}
			
		u8g2.drawUTF8(0, 24, "Полчаса");//сигнала в полчаса
    u8g2.drawXBMP(75, 17, half_width, half_height, half);
		if(1) {
			u8g2.drawUTF8(97, 24, "Включ");
		} else {
			u8g2.drawUTF8(97, 24, "Отклч");
		}	
		u8g2.drawUTF8(0, 37, "Громкость");//звук
    u8g2.drawXBMP(75, 29, sound_width, sound_height, sound);
		u8g2.setCursor(97, 37);
		u8g2.print(20);
    u8g2.drawUTF8(0,  49, "Эквалайзер");   
    u8g2.drawXBMP(75, 42, eq_width, eq_height, eq);              
		switch(1){ 
			case 0: u8g2.drawUTF8(97, 49, "Норма");break;		
			case 1: u8g2.drawUTF8(97, 49, "Попса");break;
			case 2: u8g2.drawUTF8(97, 49, "Роксс");break;
			case 3: u8g2.drawUTF8(97, 49, "Джазз");break;
			case 4: u8g2.drawUTF8(97, 49, "Класк");break;
		}	
		u8g2.drawUTF8(0, 61, "Яркость"); //
    u8g2.drawXBMP(75, 55, light_width, light_height, light);
		u8g2.setCursor(97, 61);
		u8g2.print(5); 
    u8g2.drawUTF8(122, 61, "А");

    u8g2.drawFrame(47,0,15,13);   //часы старт                              
		u8g2.drawFrame(75,0,15,13);  //часы стоп
    u8g2.drawFrame(95,0,33,13); //дни
    //u8g2.drawFrame(95,13,33,13); //полчаса звук 
    u8g2.drawFrame(95,26,15,13);  //громкость 
    //u8g2.drawFrame(95,38,33,13);   //эквалайзер	
    u8g2.drawFrame(95,50,15,13);  //подсветка
    */
  } while ( u8g2.nextPage() );
  		buttonControl();
}