DS1307 on 96x16 Oled Display with Attiny85

Projects Programming
1

hi, I am trying to make a small clock using attiny85 and the smallest i2c oled display(96x16) (as far i know). but the problem is, i have very little knowledge of programming language. So i am always dependent on libraries. Last few weeks i was searching of a library for this odd combination of i2c devices, but unfortunately, i got only one which is not even complete. There is no library for 96x16 oled display which can use with Attiny85 except the official website of oled display, which is only an example code. i will put the sketch bellow. My only problem is, i dont know how read DS1307 data on oled display. i am sure it will be few lines of code to add to see the time and date on the display. But i dont know what it should be. please if anyone can help me. will be appreciated

//main sketch
#include <TinyWireM.h>
#include "0.69_oled.h"
#include <TinyRTClib.h>

RTC_DS1307 rtc;                      // Set up real time clock

uint8_t oled_buf[WIDTH * HEIGHT / 8];//96x16
uint8_t hourvalue, minutevalue;

void setup() {
 
  TinyWireM.begin();    
   rtc.begin();
  er_oled_begin();
    er_oled_clear(oled_buf);
    er_oled_display(oled_buf);
  
}

void loop() {
   DateTime now = rtc.now();           // Get the RTC info
    hourvalue = now.hour();             // Get the hour
    
    minutevalue = now.minute();         // Get the minutes

   er_oled_clear(oled_buf);
    er_oled_display(oled_buf);
 
  er_oled_string(8, 0, hourvalue, 16, 1, oled_buf); //write text>>{er_oled_string(Column(X),  Row(Y), word, size of word, mode of word, oled_buf);}
   er_oled_char(26, 0, ':', 16, 1, oled_buf);//number ':'
  er_oled_string(8, 0, minutevalue, 16, 1, oled_buf); //write text>>{er_oled_string(Column(X),  Row(Y), word, size of word, mode of word, oled_buf);}
  er_oled_display(oled_buf);
  delay(2000);
 
}

/***************************************************
//Web: http://www.buydisplay.com
EastRising Technology Co.,LTD
****************************************************/
  
#ifndef _0.69_oled_H_
#define _0.69_oled_H_

#include <avr/pgmspace.h>

#define WIDTH 96
#define HEIGHT 16
#define PAGES HEIGHT/8

#define OLED_RST  8 
//I2C
#define IIC_CMD        0X00
#define IIC_RAM        0X40
#define command(Reg)  I2C_Write_Byte(Reg, IIC_CMD)
#define data(Data)    I2C_Write_Byte(Data, IIC_RAM)


void er_oled_begin();
void er_oled_display(uint8_t* buffer);
void er_oled_clear(uint8_t* buffer);
void er_oled_pixel(int x,int y,char color, uint8_t* buffer);
void er_oled_bitmap(uint8_t x,uint8_t y,const uint8_t *pBmp, uint8_t chWidth, uint8_t chHeight, uint8_t* buffer);
void er_oled_char(unsigned char x, unsigned char y, char acsii, char size, char mode, uint8_t* buffer);
void er_oled_char1616(uint8_t x,uint8_t y,uint8_t chChar, uint8_t* buffer);
void er_oled_char3216(uint8_t x, uint8_t y, uint8_t chChar, uint8_t* buffer);
void er_oled_string(uint8_t x, uint8_t y, const char *pString, uint8_t Size, uint8_t Mode, uint8_t* buffer);
void I2C_Write_Byte(uint8_t value, uint8_t Cmd);






const uint8_t Font1612[11][32] PROGMEM = 
{
	{0x00,0x00,0x3F,0xFC,0x3F,0xFC,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,
	0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x30,0x0C,0x3F,0xFC,0x3F,0xFC,0x00,0x00},/*"0",0*/
	{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,
	0x30,0x00,0x3F,0xFC,0x3F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"1",1*/
	{0x00,0x00,0x39,0xFC,0x39,0xFC,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,
	0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x3F,0x8C,0x3F,0x8C,0x00,0x00},/*"2",2*/
	{0x00,0x00,0x38,0x1C,0x38,0x1C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,
	0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x3F,0xFC,0x3F,0xFC,0x00,0x00},/*"3",3*/
	{0x00,0x00,0x3F,0x80,0x3F,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,
	0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x01,0x80,0x3F,0xFC,0x3F,0xFC,0x00,0x00},/*"4",4*/
	{0x00,0x00,0x3F,0x8C,0x3F,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,
	0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0xFC,0x31,0xFC,0x00,0x00},/*"5",5*/
	{0x00,0x00,0x3F,0xFC,0x3F,0xFC,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,
	0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0xFC,0x31,0xFC,0x00,0x00},/*"6",6*/
	{0x00,0x00,0x38,0x00,0x38,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,
	0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x30,0x00,0x3F,0xFC,0x3F,0xFC,0x00,0x00},/*"7",7*/
	{0x00,0x00,0x3F,0xFC,0x3F,0xFC,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,
	0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x3F,0xFC,0x3F,0xFC,0x00,0x00},/*"8",8*/
	{0x00,0x00,0x3F,0x9C,0x3F,0x9C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,
	0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x31,0x8C,0x3F,0xFC,0x3F,0xFC,0x00,0x00},/*"9",9*/
	{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x30,
	0x18,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*":",10*/
};

const uint8_t Font1206[95][12] PROGMEM = {
    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*" ",0*/
    {0x00,0x00,0x00,0x00,0x3F,0x40,0x00,0x00,0x00,0x00,0x00,0x00},/*"!",1*/
    {0x00,0x00,0x30,0x00,0x40,0x00,0x30,0x00,0x40,0x00,0x00,0x00},/*""",2*/
    {0x09,0x00,0x0B,0xC0,0x3D,0x00,0x0B,0xC0,0x3D,0x00,0x09,0x00},/*"#",3*/
    {0x18,0xC0,0x24,0x40,0x7F,0xE0,0x22,0x40,0x31,0x80,0x00,0x00},/*"$",4*/
    {0x18,0x00,0x24,0xC0,0x1B,0x00,0x0D,0x80,0x32,0x40,0x01,0x80},/*"%",5*/
    {0x03,0x80,0x1C,0x40,0x27,0x40,0x1C,0x80,0x07,0x40,0x00,0x40},/*"&",6*/
    {0x10,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"'",7*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0x80,0x20,0x40,0x40,0x20},/*"(",8*/
    {0x00,0x00,0x40,0x20,0x20,0x40,0x1F,0x80,0x00,0x00,0x00,0x00},/*")",9*/
    {0x09,0x00,0x06,0x00,0x1F,0x80,0x06,0x00,0x09,0x00,0x00,0x00},/*"*",10*/
    {0x04,0x00,0x04,0x00,0x3F,0x80,0x04,0x00,0x04,0x00,0x00,0x00},/*"+",11*/
    {0x00,0x10,0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*",",12*/
    {0x04,0x00,0x04,0x00,0x04,0x00,0x04,0x00,0x04,0x00,0x00,0x00},/*"-",13*/
    {0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*".",14*/
    {0x00,0x20,0x01,0xC0,0x06,0x00,0x38,0x00,0x40,0x00,0x00,0x00},/*"/",15*/
    {0x1F,0x80,0x20,0x40,0x20,0x40,0x20,0x40,0x1F,0x80,0x00,0x00},/*"0",16*/
    {0x00,0x00,0x10,0x40,0x3F,0xC0,0x00,0x40,0x00,0x00,0x00,0x00},/*"1",17*/
    {0x18,0xC0,0x21,0x40,0x22,0x40,0x24,0x40,0x18,0x40,0x00,0x00},/*"2",18*/
    {0x10,0x80,0x20,0x40,0x24,0x40,0x24,0x40,0x1B,0x80,0x00,0x00},/*"3",19*/
    {0x02,0x00,0x0D,0x00,0x11,0x00,0x3F,0xC0,0x01,0x40,0x00,0x00},/*"4",20*/
    {0x3C,0x80,0x24,0x40,0x24,0x40,0x24,0x40,0x23,0x80,0x00,0x00},/*"5",21*/
    {0x1F,0x80,0x24,0x40,0x24,0x40,0x34,0x40,0x03,0x80,0x00,0x00},/*"6",22*/
    {0x30,0x00,0x20,0x00,0x27,0xC0,0x38,0x00,0x20,0x00,0x00,0x00},/*"7",23*/
    {0x1B,0x80,0x24,0x40,0x24,0x40,0x24,0x40,0x1B,0x80,0x00,0x00},/*"8",24*/
    {0x1C,0x00,0x22,0xC0,0x22,0x40,0x22,0x40,0x1F,0x80,0x00,0x00},/*"9",25*/
    {0x00,0x00,0x00,0x00,0x08,0x40,0x00,0x00,0x00,0x00,0x00,0x00},/*":",26*/
    {0x00,0x00,0x00,0x00,0x04,0x60,0x00,0x00,0x00,0x00,0x00,0x00},/*";",27*/
    {0x00,0x00,0x04,0x00,0x0A,0x00,0x11,0x00,0x20,0x80,0x40,0x40},/*"<",28*/
    {0x09,0x00,0x09,0x00,0x09,0x00,0x09,0x00,0x09,0x00,0x00,0x00},/*"=",29*/
    {0x00,0x00,0x40,0x40,0x20,0x80,0x11,0x00,0x0A,0x00,0x04,0x00},/*">",30*/
    {0x18,0x00,0x20,0x00,0x23,0x40,0x24,0x00,0x18,0x00,0x00,0x00},/*"?",31*/
    {0x1F,0x80,0x20,0x40,0x27,0x40,0x29,0x40,0x1F,0x40,0x00,0x00},/*"@",32*/
    {0x00,0x40,0x07,0xC0,0x39,0x00,0x0F,0x00,0x01,0xC0,0x00,0x40},/*"A",33*/
    {0x20,0x40,0x3F,0xC0,0x24,0x40,0x24,0x40,0x1B,0x80,0x00,0x00},/*"B",34*/
    {0x1F,0x80,0x20,0x40,0x20,0x40,0x20,0x40,0x30,0x80,0x00,0x00},/*"C",35*/
    {0x20,0x40,0x3F,0xC0,0x20,0x40,0x20,0x40,0x1F,0x80,0x00,0x00},/*"D",36*/
    {0x20,0x40,0x3F,0xC0,0x24,0x40,0x2E,0x40,0x30,0xC0,0x00,0x00},/*"E",37*/
    {0x20,0x40,0x3F,0xC0,0x24,0x40,0x2E,0x00,0x30,0x00,0x00,0x00},/*"F",38*/
    {0x0F,0x00,0x10,0x80,0x20,0x40,0x22,0x40,0x33,0x80,0x02,0x00},/*"G",39*/
    {0x20,0x40,0x3F,0xC0,0x04,0x00,0x04,0x00,0x3F,0xC0,0x20,0x40},/*"H",40*/
    {0x20,0x40,0x20,0x40,0x3F,0xC0,0x20,0x40,0x20,0x40,0x00,0x00},/*"I",41*/
    {0x00,0x60,0x20,0x20,0x20,0x20,0x3F,0xC0,0x20,0x00,0x20,0x00},/*"J",42*/
    {0x20,0x40,0x3F,0xC0,0x24,0x40,0x0B,0x00,0x30,0xC0,0x20,0x40},/*"K",43*/
    {0x20,0x40,0x3F,0xC0,0x20,0x40,0x00,0x40,0x00,0x40,0x00,0xC0},/*"L",44*/
    {0x3F,0xC0,0x3C,0x00,0x03,0xC0,0x3C,0x00,0x3F,0xC0,0x00,0x00},/*"M",45*/
    {0x20,0x40,0x3F,0xC0,0x0C,0x40,0x23,0x00,0x3F,0xC0,0x20,0x00},/*"N",46*/
    {0x1F,0x80,0x20,0x40,0x20,0x40,0x20,0x40,0x1F,0x80,0x00,0x00},/*"O",47*/
    {0x20,0x40,0x3F,0xC0,0x24,0x40,0x24,0x00,0x18,0x00,0x00,0x00},/*"P",48*/
    {0x1F,0x80,0x21,0x40,0x21,0x40,0x20,0xE0,0x1F,0xA0,0x00,0x00},/*"Q",49*/
    {0x20,0x40,0x3F,0xC0,0x24,0x40,0x26,0x00,0x19,0xC0,0x00,0x40},/*"R",50*/
    {0x18,0xC0,0x24,0x40,0x24,0x40,0x22,0x40,0x31,0x80,0x00,0x00},/*"S",51*/
    {0x30,0x00,0x20,0x40,0x3F,0xC0,0x20,0x40,0x30,0x00,0x00,0x00},/*"T",52*/
    {0x20,0x00,0x3F,0x80,0x00,0x40,0x00,0x40,0x3F,0x80,0x20,0x00},/*"U",53*/
    {0x20,0x00,0x3E,0x00,0x01,0xC0,0x07,0x00,0x38,0x00,0x20,0x00},/*"V",54*/
    {0x38,0x00,0x07,0xC0,0x3C,0x00,0x07,0xC0,0x38,0x00,0x00,0x00},/*"W",55*/
    {0x20,0x40,0x39,0xC0,0x06,0x00,0x39,0xC0,0x20,0x40,0x00,0x00},/*"X",56*/
    {0x20,0x00,0x38,0x40,0x07,0xC0,0x38,0x40,0x20,0x00,0x00,0x00},/*"Y",57*/
    {0x30,0x40,0x21,0xC0,0x26,0x40,0x38,0x40,0x20,0xC0,0x00,0x00},/*"Z",58*/
    {0x00,0x00,0x00,0x00,0x7F,0xE0,0x40,0x20,0x40,0x20,0x00,0x00},/*"[",59*/
    {0x00,0x00,0x70,0x00,0x0C,0x00,0x03,0x80,0x00,0x40,0x00,0x00},/*"\",60*/
    {0x00,0x00,0x40,0x20,0x40,0x20,0x7F,0xE0,0x00,0x00,0x00,0x00},/*"]",61*/
    {0x00,0x00,0x20,0x00,0x40,0x00,0x20,0x00,0x00,0x00,0x00,0x00},/*"^",62*/
    {0x00,0x10,0x00,0x10,0x00,0x10,0x00,0x10,0x00,0x10,0x00,0x10},/*"_",63*/
    {0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"`",64*/
    {0x00,0x00,0x02,0x80,0x05,0x40,0x05,0x40,0x03,0xC0,0x00,0x40},/*"a",65*/
    {0x20,0x00,0x3F,0xC0,0x04,0x40,0x04,0x40,0x03,0x80,0x00,0x00},/*"b",66*/
    {0x00,0x00,0x03,0x80,0x04,0x40,0x04,0x40,0x06,0x40,0x00,0x00},/*"c",67*/
    {0x00,0x00,0x03,0x80,0x04,0x40,0x24,0x40,0x3F,0xC0,0x00,0x40},/*"d",68*/
    {0x00,0x00,0x03,0x80,0x05,0x40,0x05,0x40,0x03,0x40,0x00,0x00},/*"e",69*/
    {0x00,0x00,0x04,0x40,0x1F,0xC0,0x24,0x40,0x24,0x40,0x20,0x00},/*"f",70*/
    {0x00,0x00,0x02,0xE0,0x05,0x50,0x05,0x50,0x06,0x50,0x04,0x20},/*"g",71*/
    {0x20,0x40,0x3F,0xC0,0x04,0x40,0x04,0x00,0x03,0xC0,0x00,0x40},/*"h",72*/
    {0x00,0x00,0x04,0x40,0x27,0xC0,0x00,0x40,0x00,0x00,0x00,0x00},/*"i",73*/
    {0x00,0x10,0x00,0x10,0x04,0x10,0x27,0xE0,0x00,0x00,0x00,0x00},/*"j",74*/
    {0x20,0x40,0x3F,0xC0,0x01,0x40,0x07,0x00,0x04,0xC0,0x04,0x40},/*"k",75*/
    {0x20,0x40,0x20,0x40,0x3F,0xC0,0x00,0x40,0x00,0x40,0x00,0x00},/*"l",76*/
    {0x07,0xC0,0x04,0x00,0x07,0xC0,0x04,0x00,0x03,0xC0,0x00,0x00},/*"m",77*/
    {0x04,0x40,0x07,0xC0,0x04,0x40,0x04,0x00,0x03,0xC0,0x00,0x40},/*"n",78*/
    {0x00,0x00,0x03,0x80,0x04,0x40,0x04,0x40,0x03,0x80,0x00,0x00},/*"o",79*/
    {0x04,0x10,0x07,0xF0,0x04,0x50,0x04,0x40,0x03,0x80,0x00,0x00},/*"p",80*/
    {0x00,0x00,0x03,0x80,0x04,0x40,0x04,0x50,0x07,0xF0,0x00,0x10},/*"q",81*/
    {0x04,0x40,0x07,0xC0,0x02,0x40,0x04,0x00,0x04,0x00,0x00,0x00},/*"r",82*/
    {0x00,0x00,0x06,0x40,0x05,0x40,0x05,0x40,0x04,0xC0,0x00,0x00},/*"s",83*/
    {0x00,0x00,0x04,0x00,0x1F,0x80,0x04,0x40,0x00,0x40,0x00,0x00},/*"t",84*/
    {0x04,0x00,0x07,0x80,0x00,0x40,0x04,0x40,0x07,0xC0,0x00,0x40},/*"u",85*/
    {0x04,0x00,0x07,0x00,0x04,0xC0,0x01,0x80,0x06,0x00,0x04,0x00},/*"v",86*/
    {0x06,0x00,0x01,0xC0,0x07,0x00,0x01,0xC0,0x06,0x00,0x00,0x00},/*"w",87*/
    {0x04,0x40,0x06,0xC0,0x01,0x00,0x06,0xC0,0x04,0x40,0x00,0x00},/*"x",88*/
    {0x04,0x10,0x07,0x10,0x04,0xE0,0x01,0x80,0x06,0x00,0x04,0x00},/*"y",89*/
    {0x00,0x00,0x04,0x40,0x05,0xC0,0x06,0x40,0x04,0x40,0x00,0x00},/*"z",90*/
    {0x00,0x00,0x00,0x00,0x04,0x00,0x7B,0xE0,0x40,0x20,0x00,0x00},/*"{",91*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xF0,0x00,0x00,0x00,0x00},/*"|",92*/
    {0x00,0x00,0x40,0x20,0x7B,0xE0,0x04,0x00,0x00,0x00,0x00,0x00},/*"}",93*/
    {0x40,0x00,0x80,0x00,0x40,0x00,0x20,0x00,0x20,0x00,0x40,0x00},/*"~",94*/
}; 

const uint8_t Font1608[95][16] PROGMEM = {      
    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*" ",0*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0xCC,0x00,0x0C,0x00,0x00,0x00,0x00,0x00,0x00},/*"!",1*/
    {0x00,0x00,0x08,0x00,0x30,0x00,0x60,0x00,0x08,0x00,0x30,0x00,0x60,0x00,0x00,0x00},/*""",2*/
    {0x02,0x20,0x03,0xFC,0x1E,0x20,0x02,0x20,0x03,0xFC,0x1E,0x20,0x02,0x20,0x00,0x00},/*"#",3*/
    {0x00,0x00,0x0E,0x18,0x11,0x04,0x3F,0xFF,0x10,0x84,0x0C,0x78,0x00,0x00,0x00,0x00},/*"$",4*/
    {0x0F,0x00,0x10,0x84,0x0F,0x38,0x00,0xC0,0x07,0x78,0x18,0x84,0x00,0x78,0x00,0x00},/*"%",5*/
    {0x00,0x78,0x0F,0x84,0x10,0xC4,0x11,0x24,0x0E,0x98,0x00,0xE4,0x00,0x84,0x00,0x08},/*"&",6*/
    {0x08,0x00,0x68,0x00,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"'",7*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xE0,0x18,0x18,0x20,0x04,0x40,0x02,0x00,0x00},/*"(",8*/
    {0x00,0x00,0x40,0x02,0x20,0x04,0x18,0x18,0x07,0xE0,0x00,0x00,0x00,0x00,0x00,0x00},/*")",9*/
    {0x02,0x40,0x02,0x40,0x01,0x80,0x0F,0xF0,0x01,0x80,0x02,0x40,0x02,0x40,0x00,0x00},/*"*",10*/
    {0x00,0x80,0x00,0x80,0x00,0x80,0x0F,0xF8,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x00},/*"+",11*/
    {0x00,0x01,0x00,0x0D,0x00,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*",",12*/
    {0x00,0x00,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80},/*"-",13*/
    {0x00,0x00,0x00,0x0C,0x00,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*".",14*/
    {0x00,0x00,0x00,0x06,0x00,0x18,0x00,0x60,0x01,0x80,0x06,0x00,0x18,0x00,0x20,0x00},/*"/",15*/
    {0x00,0x00,0x07,0xF0,0x08,0x08,0x10,0x04,0x10,0x04,0x08,0x08,0x07,0xF0,0x00,0x00},/*"0",16*/
    {0x00,0x00,0x08,0x04,0x08,0x04,0x1F,0xFC,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00},/*"1",17*/
    {0x00,0x00,0x0E,0x0C,0x10,0x14,0x10,0x24,0x10,0x44,0x11,0x84,0x0E,0x0C,0x00,0x00},/*"2",18*/
    {0x00,0x00,0x0C,0x18,0x10,0x04,0x11,0x04,0x11,0x04,0x12,0x88,0x0C,0x70,0x00,0x00},/*"3",19*/
    {0x00,0x00,0x00,0xE0,0x03,0x20,0x04,0x24,0x08,0x24,0x1F,0xFC,0x00,0x24,0x00,0x00},/*"4",20*/
    {0x00,0x00,0x1F,0x98,0x10,0x84,0x11,0x04,0x11,0x04,0x10,0x88,0x10,0x70,0x00,0x00},/*"5",21*/
    {0x00,0x00,0x07,0xF0,0x08,0x88,0x11,0x04,0x11,0x04,0x18,0x88,0x00,0x70,0x00,0x00},/*"6",22*/
    {0x00,0x00,0x1C,0x00,0x10,0x00,0x10,0xFC,0x13,0x00,0x1C,0x00,0x10,0x00,0x00,0x00},/*"7",23*/
    {0x00,0x00,0x0E,0x38,0x11,0x44,0x10,0x84,0x10,0x84,0x11,0x44,0x0E,0x38,0x00,0x00},/*"8",24*/
    {0x00,0x00,0x07,0x00,0x08,0x8C,0x10,0x44,0x10,0x44,0x08,0x88,0x07,0xF0,0x00,0x00},/*"9",25*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x0C,0x03,0x0C,0x00,0x00,0x00,0x00,0x00,0x00},/*":",26*/
    {0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*";",27*/
    {0x00,0x00,0x00,0x80,0x01,0x40,0x02,0x20,0x04,0x10,0x08,0x08,0x10,0x04,0x00,0x00},/*"<",28*/
    {0x02,0x20,0x02,0x20,0x02,0x20,0x02,0x20,0x02,0x20,0x02,0x20,0x02,0x20,0x00,0x00},/*"=",29*/
    {0x00,0x00,0x10,0x04,0x08,0x08,0x04,0x10,0x02,0x20,0x01,0x40,0x00,0x80,0x00,0x00},/*">",30*/
    {0x00,0x00,0x0E,0x00,0x12,0x00,0x10,0x0C,0x10,0x6C,0x10,0x80,0x0F,0x00,0x00,0x00},/*"?",31*/
    {0x03,0xE0,0x0C,0x18,0x13,0xE4,0x14,0x24,0x17,0xC4,0x08,0x28,0x07,0xD0,0x00,0x00},/*"@",32*/
    {0x00,0x04,0x00,0x3C,0x03,0xC4,0x1C,0x40,0x07,0x40,0x00,0xE4,0x00,0x1C,0x00,0x04},/*"A",33*/
    {0x10,0x04,0x1F,0xFC,0x11,0x04,0x11,0x04,0x11,0x04,0x0E,0x88,0x00,0x70,0x00,0x00},/*"B",34*/
    {0x03,0xE0,0x0C,0x18,0x10,0x04,0x10,0x04,0x10,0x04,0x10,0x08,0x1C,0x10,0x00,0x00},/*"C",35*/
    {0x10,0x04,0x1F,0xFC,0x10,0x04,0x10,0x04,0x10,0x04,0x08,0x08,0x07,0xF0,0x00,0x00},/*"D",36*/
    {0x10,0x04,0x1F,0xFC,0x11,0x04,0x11,0x04,0x17,0xC4,0x10,0x04,0x08,0x18,0x00,0x00},/*"E",37*/
    {0x10,0x04,0x1F,0xFC,0x11,0x04,0x11,0x00,0x17,0xC0,0x10,0x00,0x08,0x00,0x00,0x00},/*"F",38*/
    {0x03,0xE0,0x0C,0x18,0x10,0x04,0x10,0x04,0x10,0x44,0x1C,0x78,0x00,0x40,0x00,0x00},/*"G",39*/
    {0x10,0x04,0x1F,0xFC,0x10,0x84,0x00,0x80,0x00,0x80,0x10,0x84,0x1F,0xFC,0x10,0x04},/*"H",40*/
    {0x00,0x00,0x10,0x04,0x10,0x04,0x1F,0xFC,0x10,0x04,0x10,0x04,0x00,0x00,0x00,0x00},/*"I",41*/
    {0x00,0x03,0x00,0x01,0x10,0x01,0x10,0x01,0x1F,0xFE,0x10,0x00,0x10,0x00,0x00,0x00},/*"J",42*/
    {0x10,0x04,0x1F,0xFC,0x11,0x04,0x03,0x80,0x14,0x64,0x18,0x1C,0x10,0x04,0x00,0x00},/*"K",43*/
    {0x10,0x04,0x1F,0xFC,0x10,0x04,0x00,0x04,0x00,0x04,0x00,0x04,0x00,0x0C,0x00,0x00},/*"L",44*/
    {0x10,0x04,0x1F,0xFC,0x1F,0x00,0x00,0xFC,0x1F,0x00,0x1F,0xFC,0x10,0x04,0x00,0x00},/*"M",45*/
    {0x10,0x04,0x1F,0xFC,0x0C,0x04,0x03,0x00,0x00,0xE0,0x10,0x18,0x1F,0xFC,0x10,0x00},/*"N",46*/
    {0x07,0xF0,0x08,0x08,0x10,0x04,0x10,0x04,0x10,0x04,0x08,0x08,0x07,0xF0,0x00,0x00},/*"O",47*/
    {0x10,0x04,0x1F,0xFC,0x10,0x84,0x10,0x80,0x10,0x80,0x10,0x80,0x0F,0x00,0x00,0x00},/*"P",48*/
    {0x07,0xF0,0x08,0x18,0x10,0x24,0x10,0x24,0x10,0x1C,0x08,0x0A,0x07,0xF2,0x00,0x00},/*"Q",49*/
    {0x10,0x04,0x1F,0xFC,0x11,0x04,0x11,0x00,0x11,0xC0,0x11,0x30,0x0E,0x0C,0x00,0x04},/*"R",50*/
    {0x00,0x00,0x0E,0x1C,0x11,0x04,0x10,0x84,0x10,0x84,0x10,0x44,0x1C,0x38,0x00,0x00},/*"S",51*/
    {0x18,0x00,0x10,0x00,0x10,0x04,0x1F,0xFC,0x10,0x04,0x10,0x00,0x18,0x00,0x00,0x00},/*"T",52*/
    {0x10,0x00,0x1F,0xF8,0x10,0x04,0x00,0x04,0x00,0x04,0x10,0x04,0x1F,0xF8,0x10,0x00},/*"U",53*/
    {0x10,0x00,0x1E,0x00,0x11,0xE0,0x00,0x1C,0x00,0x70,0x13,0x80,0x1C,0x00,0x10,0x00},/*"V",54*/
    {0x1F,0xC0,0x10,0x3C,0x00,0xE0,0x1F,0x00,0x00,0xE0,0x10,0x3C,0x1F,0xC0,0x00,0x00},/*"W",55*/
    {0x10,0x04,0x18,0x0C,0x16,0x34,0x01,0xC0,0x01,0xC0,0x16,0x34,0x18,0x0C,0x10,0x04},/*"X",56*/
    {0x10,0x00,0x1C,0x00,0x13,0x04,0x00,0xFC,0x13,0x04,0x1C,0x00,0x10,0x00,0x00,0x00},/*"Y",57*/
    {0x08,0x04,0x10,0x1C,0x10,0x64,0x10,0x84,0x13,0x04,0x1C,0x04,0x10,0x18,0x00,0x00},/*"Z",58*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0xFE,0x40,0x02,0x40,0x02,0x40,0x02,0x00,0x00},/*"[",59*/
    {0x00,0x00,0x30,0x00,0x0C,0x00,0x03,0x80,0x00,0x60,0x00,0x1C,0x00,0x03,0x00,0x00},/*"\",60*/
    {0x00,0x00,0x40,0x02,0x40,0x02,0x40,0x02,0x7F,0xFE,0x00,0x00,0x00,0x00,0x00,0x00},/*"]",61*/
    {0x00,0x00,0x00,0x00,0x20,0x00,0x40,0x00,0x40,0x00,0x40,0x00,0x20,0x00,0x00,0x00},/*"^",62*/
    {0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0x01},/*"_",63*/
    {0x00,0x00,0x40,0x00,0x40,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"`",64*/
    {0x00,0x00,0x00,0x98,0x01,0x24,0x01,0x44,0x01,0x44,0x01,0x44,0x00,0xFC,0x00,0x04},/*"a",65*/
    {0x10,0x00,0x1F,0xFC,0x00,0x88,0x01,0x04,0x01,0x04,0x00,0x88,0x00,0x70,0x00,0x00},/*"b",66*/
    {0x00,0x00,0x00,0x70,0x00,0x88,0x01,0x04,0x01,0x04,0x01,0x04,0x00,0x88,0x00,0x00},/*"c",67*/
    {0x00,0x00,0x00,0x70,0x00,0x88,0x01,0x04,0x01,0x04,0x11,0x08,0x1F,0xFC,0x00,0x04},/*"d",68*/
    {0x00,0x00,0x00,0xF8,0x01,0x44,0x01,0x44,0x01,0x44,0x01,0x44,0x00,0xC8,0x00,0x00},/*"e",69*/
    {0x00,0x00,0x01,0x04,0x01,0x04,0x0F,0xFC,0x11,0x04,0x11,0x04,0x11,0x00,0x18,0x00},/*"f",70*/
    {0x00,0x00,0x00,0xD6,0x01,0x29,0x01,0x29,0x01,0x29,0x01,0xC9,0x01,0x06,0x00,0x00},/*"g",71*/
    {0x10,0x04,0x1F,0xFC,0x00,0x84,0x01,0x00,0x01,0x00,0x01,0x04,0x00,0xFC,0x00,0x04},/*"h",72*/
    {0x00,0x00,0x01,0x04,0x19,0x04,0x19,0xFC,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00},/*"i",73*/
    {0x00,0x00,0x00,0x03,0x00,0x01,0x01,0x01,0x19,0x01,0x19,0xFE,0x00,0x00,0x00,0x00},/*"j",74*/
    {0x10,0x04,0x1F,0xFC,0x00,0x24,0x00,0x40,0x01,0xB4,0x01,0x0C,0x01,0x04,0x00,0x00},/*"k",75*/
    {0x00,0x00,0x10,0x04,0x10,0x04,0x1F,0xFC,0x00,0x04,0x00,0x04,0x00,0x00,0x00,0x00},/*"l",76*/
    {0x01,0x04,0x01,0xFC,0x01,0x04,0x01,0x00,0x01,0xFC,0x01,0x04,0x01,0x00,0x00,0xFC},/*"m",77*/
    {0x01,0x04,0x01,0xFC,0x00,0x84,0x01,0x00,0x01,0x00,0x01,0x04,0x00,0xFC,0x00,0x04},/*"n",78*/
    {0x00,0x00,0x00,0xF8,0x01,0x04,0x01,0x04,0x01,0x04,0x01,0x04,0x00,0xF8,0x00,0x00},/*"o",79*/
    {0x01,0x01,0x01,0xFF,0x00,0x85,0x01,0x04,0x01,0x04,0x00,0x88,0x00,0x70,0x00,0x00},/*"p",80*/
    {0x00,0x00,0x00,0x70,0x00,0x88,0x01,0x04,0x01,0x04,0x01,0x05,0x01,0xFF,0x00,0x01},/*"q",81*/
    {0x01,0x04,0x01,0x04,0x01,0xFC,0x00,0x84,0x01,0x04,0x01,0x00,0x01,0x80,0x00,0x00},/*"r",82*/
    {0x00,0x00,0x00,0xCC,0x01,0x24,0x01,0x24,0x01,0x24,0x01,0x24,0x01,0x98,0x00,0x00},/*"s",83*/
    {0x00,0x00,0x01,0x00,0x01,0x00,0x07,0xF8,0x01,0x04,0x01,0x04,0x00,0x00,0x00,0x00},/*"t",84*/
    {0x01,0x00,0x01,0xF8,0x00,0x04,0x00,0x04,0x00,0x04,0x01,0x08,0x01,0xFC,0x00,0x04},/*"u",85*/
    {0x01,0x00,0x01,0x80,0x01,0x70,0x00,0x0C,0x00,0x10,0x01,0x60,0x01,0x80,0x01,0x00},/*"v",86*/
    {0x01,0xF0,0x01,0x0C,0x00,0x30,0x01,0xC0,0x00,0x30,0x01,0x0C,0x01,0xF0,0x01,0x00},/*"w",87*/
    {0x00,0x00,0x01,0x04,0x01,0x8C,0x00,0x74,0x01,0x70,0x01,0x8C,0x01,0x04,0x00,0x00},/*"x",88*/
    {0x01,0x01,0x01,0x81,0x01,0x71,0x00,0x0E,0x00,0x18,0x01,0x60,0x01,0x80,0x01,0x00},/*"y",89*/
    {0x00,0x00,0x01,0x84,0x01,0x0C,0x01,0x34,0x01,0x44,0x01,0x84,0x01,0x0C,0x00,0x00},/*"z",90*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x3E,0xFC,0x40,0x02,0x40,0x02},/*"{",91*/
    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00},/*"|",92*/
    {0x00,0x00,0x40,0x02,0x40,0x02,0x3E,0xFC,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*"}",93*/
    {0x00,0x00,0x60,0x00,0x80,0x00,0x80,0x00,0x40,0x00,0x40,0x00,0x20,0x00,0x20,0x00},/*"~",94*/
};

const uint8_t Font3216[11][64] PROGMEM = 
{
    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,    /*"0",0*/
    0x30,0x00,0x00,0x0C,0x30,0x00,0x00,0x0C,0x30,0x00,0x00,0x0C,0x30,0x00,0x00,0x0C,
    0x30,0x00,0x00,0x0C,0x30,0x00,0x00,0x0C,0x30,0x00,0x00,0x0C,0x30,0x00,0x00,0x0C,
    0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
    
    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,   /*"1",1*/
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,
    0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x01,0xFF,0xFC,0x3C,0x01,0xFF,0xFC,   /*"2",2*/
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x3F,0xFF,0x80,0x0C,0x3F,0xFF,0x80,0x0C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x38,0x00,0x00,0x3C,0x38,0x00,0x00,0x3C,   /*"3",3*/
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0x80,0x00,0x3F,0xFF,0x80,0x00,  /*"4",4*/
    0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,
    0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,0x00,0x01,0x80,0x00,
    0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0x80,0x3C,0x3F,0xFF,0x80,0x3C,  /*"5",5*/
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x30,0x01,0xFF,0xFC,0x30,0x01,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,  /*"6",6*/
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x3C,0x01,0xFF,0xFC,0x3C,0x01,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
        
    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,  /*"7",7*/
    0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,
    0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,
    0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},    

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,  /*"8",8*/
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xFF,0x80,0x3C,0x3F,0xFF,0x80,0x3C,  /*"9",9*/
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,0x30,0x01,0x80,0x0C,
    0x3F,0xFF,0xFF,0xFC,0x3F,0xFF,0xFF,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},

    {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /*":",10*/
    0x00,0x00,0x00,0x00,0x0F,0xF0,0x0F,0xF0,0x0F,0xF0,0x0F,0xF0,0x0C,0x00,0x00,0x30,
    0x0C,0x00,0x00,0x30,0x0F,0xF0,0x0F,0xF0,0x0F,0xF0,0x0F,0xF0,0x00,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}
};    




const uint8_t Bat816[16] PROGMEM = //batery
{
    0x0F,0xFE,0x30,0x02,0x26,0xDA,0x26,0xDA,0x26,0xDA,0x26,0xDA,0x30,0x02,0x0F,0xFE
};


const uint8_t Alarm88[8] PROGMEM = //alram
{
    0xC3,0xBD,0x42,0x52,0x4E,0x42,0x3C,0xC3
};

#endif


/***************************************************
//Web: http://www.buydisplay.com
EastRising Technology Co.,LTD
****************************************************/

#include <TinyWireM.h>
#include "0.69_oled.h"
#include "Arduino.h"

void I2C_Write_Byte(uint8_t value, uint8_t Cmd)
{
  uint8_t Addr = 0x3c;
  TinyWireM.beginTransmission(Addr);
  TinyWireM.send(Cmd);
  TinyWireM.send(value);
  TinyWireM.endTransmission();
}

void er_oled_begin()
{
    pinMode(OLED_RST, OUTPUT);      
    digitalWrite(OLED_RST, HIGH);
    delay(10);
    digitalWrite(OLED_RST, LOW);
    delay(10);
    digitalWrite(OLED_RST, HIGH);

  command(0xae);//--turn off oled panel
	
    command(0xd5);//--set display clock divide ratio/oscillator frequency
    command(0x80);//--set divide ratio

    command(0xa8);//--set multiplex ratio
    command(0x0f);//--1/16 duty

    command(0xd3);//-set display offset
    command(0x00);//-not offset

    command(0x8d);//--set Charge Pump enable/disable
    command(0x14);//--set(0x10) disable

    command(0x40);//--set start line address

    command(0xa6);//--set normal display

    command(0xa4);//Disable Entire Display On

    command(0xa1);//--set segment re-map 128 to 0

    command(0xC8);//--Set COM Output Scan Direction 64 to 0

    command(0xda);//--set com pins hardware configuration
    command(0x02);

    command(0x81);//--set contrast control register
    command(0xcf);

    command(0xd9);//--set pre-charge period
    command(0xf1);

    command(0xdb);//--set vcomh
    command(0x40);

    command(0xaf);//--turn on oled panel

}

void er_oled_clear(uint8_t* buffer)
{
	int i;
	for(i = 0;i < WIDTH * HEIGHT / 8;i++)
	{
		buffer[i] = 0;
	}
}

void er_oled_pixel(int x, int y, char color, uint8_t* buffer)
{
    if(x > WIDTH || y > HEIGHT)return ;
    if(color)
        buffer[x+(y/8)*WIDTH] |= 1<<(y%8);
    else
        buffer[x+(y/8)*WIDTH] &= ~(1<<(y%8));
}

void er_oled_char1616(uint8_t x, uint8_t y, uint8_t chChar, uint8_t* buffer)
{
	uint8_t i, j;
	uint8_t chTemp = 0, y0 = y, chMode = 0;

	for (i = 0; i < 32; i++) {
		chTemp = pgm_read_byte(&Font1612[chChar - 0x30][i]);
		for (j = 0; j < 8; j++) {
			chMode = chTemp & 0x80? 1 : 0; 
			er_oled_pixel(x, y, chMode, buffer);
			chTemp <<= 1;
			y++;
			if ((y - y0) == 16) {
				y = y0;
				x++;
				break;
			}
		}
	}
}

void er_oled_char(unsigned char x, unsigned char y, char acsii, char size, char mode, uint8_t* buffer)
{
    unsigned char i, j, y0=y;
    char temp;
    unsigned char ch = acsii - ' ';
    for(i = 0;i<size;i++) {
        if(size == 12)
        {
            if(mode)temp = pgm_read_byte(&Font1206[ch][i]);
            else temp = ~pgm_read_byte(&Font1206[ch][i]);
        }
        else 
        {            
            if(mode)temp = pgm_read_byte(&Font1608[ch][i]);
            else temp = ~pgm_read_byte(&Font1608[ch][i]);
        }
        for(j =0;j<8;j++)
        {
            if(temp & 0x80) er_oled_pixel(x, y, 1, buffer);
            else er_oled_pixel(x, y, 0, buffer);
            temp <<= 1;
            y++;
            if((y-y0) == size)
            {
                y = y0;
                x++;
                break;
            }
        }
    }
}

void er_oled_string(uint8_t x, uint8_t y, const char *pString, uint8_t Size, uint8_t Mode, uint8_t* buffer)
{
    while (*pString != '\0') {       
        if (x > (WIDTH - Size / 2)) {
            x = 0;
            y += Size;
            if (y > (HEIGHT - Size)) {
                y = x = 0;
            }
        }
        
        er_oled_char(x, y, *pString, Size, Mode, buffer);
        x += Size / 2;
        pString++;
    }
}

void er_oled_char3216(uint8_t x, uint8_t y, uint8_t chChar, uint8_t* buffer)
{
    uint8_t i, j;
    uint8_t chTemp = 0, y0 = y, chMode = 0;

    for (i = 0; i < 64; i++) {
        chTemp = pgm_read_byte(&Font3216[chChar - 0x30][i]);
        for (j = 0; j < 8; j++) {
            chMode = chTemp & 0x80? 1 : 0; 
            er_oled_pixel(x, y, chMode, buffer);
            chTemp <<= 1;
            y++;
            if ((y - y0) == 32) {
                y = y0;
                x++;
                break;
            }
        }
    }
}

void er_oled_bitmap(uint8_t x,uint8_t y,const uint8_t *pBmp, uint8_t chWidth, uint8_t chHeight, uint8_t* buffer)
{
	uint8_t i, j, byteWidth = (chWidth + 7)/8;
	for(j = 0;j < chHeight;j++){
		for(i = 0;i <chWidth;i++){
			if(pgm_read_byte(pBmp + j * byteWidth + i / 8) & (128 >> (i & 7))){
				er_oled_pixel(x + i,y + j, 1, buffer);
			}
		}
	}		
}

void er_oled_display(uint8_t* pBuf)
{    uint8_t page,i;   
    for (page = 0; page < PAGES; page++) {         
        command(0xB0 + page);/* set page address */     
        command(0x00);   /* set low column address */      
        command(0x10);  /* set high column address */           
        for(i = 0; i< WIDTH; i++ ) {
          data(pBuf[i+page*WIDTH]);// write data one
        }        
    }
}
2

Did you try Tiny4kOLED.h? (you might not need TinyWireM.h, try with and without)

3

hi, thanks for your replay, yes i dried Tiny4kOLD.h, but for some reason it doesn't compile with attiny85 on my ide. and my both module are i2c protocol. so i have to use TinyWireM.h . Everything work just fine except the 'hourvalue' and 'minutevalue' doesn't show on the oled. i know the function is wrong, because its not a char String, just i need a function call on the .cpp file and to print the time as uint8_t on the sketch.

4

Would you show the errors?

I like to make a dot to find the screen (0,0), then the center (screenwidth/2, screenwidth/2), then a square to find the xMin, yMin, xMax, yMax. If you have an odd size OLED and you tell the library the OLED xMax, yMax is bigger than the real size, you might be addressing pixels off the OLED. I practiced a sketch for a 128x32 on a 128x64, then when I move my sketch to the 128x32 my sketch was not displaying... until I moved the pixels into the 128x32 space.

5

there is the errors

Blockquote

`Arduino: 1.8.13 (Windows 10), Board: "ATtiny25/45/85, ATtiny85, Internal 1 MHz"
exit status 1

Error compiling for board ATtiny25/45/85.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
`

Blockquote

And yes i understand what you are saying. that is an another reason why i cant use Tiny4kOLED or Adafrute ssd 1306 libraries. my 0.69 oled display is 96x16 pixels. you know the sketch i mentioned, i got from the oled official site; it works perfectly fine, it displays Bitmap, char , String.
they all are within the display size. nothing get cut off. my problem is, i dont know how to print number as time. when i run the program i posted above. it shows :- gibberish : gibberish

6

Would you edit your post #5...

  1. Edit your post.
  2. Select your error.
  3. Delete it.
  4. Copy the error from the IDE.
  5. In the edited post, click < CODE > to create code tags
  6. Paste your error where you see '''type or paste your code here'''
    (this will make your post compact and readable)

I don't think it compiles. How can it work?
Something is wrong with twi.c... which is probably a dependency of (some form of) wire.h. Would you open your Library manager, find the libraries you are using and ensure they are updated to the most recent release?

7

yes i am quite sure. because at the beginning i told you the oled, ds1307, all working fine, i can print 'hello world' , it compiling, uploading and printing on display. the only problem was i cannot or i dont know how to print time on the display. my Arduino ide is 1.8.16. thanks anyway

8

If this is true, then you posted a different sketch than the sketch you are using, which makes it more difficult to see what you are seeing...

The problem is not that you can not print on the display (because you can). The problem (here) is that you insist everything is right, when it is not, and you refuse to listen.

Post the sketch that works.

9

i am sorry to hear that you find difficult to believe me. I didn't say, I cannot print on the display, I said i cannot print date and time on the display. you are struggling to believe me, may be because you didn't check the sketch i posted at the beginning. If i knew how, i could post a video clip to show you that, it works fine when i put String (Hello world) instead of minutevalue or hourvalue(please check the sketch i posted at the top). I also posted the .cpp and .h file so that someone can tell me which line i need to edit to print 'number' instead of 'String'.

er_oled_string(8, 0, hourvalue, 16, 1, oled_buf);

that code is to see the hour on the display, which doesn't work

er_oled_string(8, 0, "Hello world", 16, 1, oled_buf);

and that code is to see Hello world on the display, which works perfectly.

If I still wasn't able to make you understand, I am sorry for that.

10

Post the working sketch.

11

@sufiansiddiquee
1. I have an OLED (132x28), a DS1307 Breakout Board, and a Digispark ATtiny85 Dev Board. I have connected them as per Fig-1.

attiny85OLEDds1307
attiny85OLEDds1307872×371 45.4 KB

image
Figure-1:

2. It was not that much easy to make the system working! I had spent more than 11/2 day to make it functional first using NANO+OLED+DS1307 using the conventional Libraries. The problem was that the OLED was not simply going with DS1307 due bad contact, long wire, etc. After that it was a pain in the neck to utilize the Tiny Libraries due to 6 kByte flash limitation of the Digispark/ATtiny85 Board.

3. The RTC is working fine and the time is fully synchronized with my PC except few seconds lagging. Hope, the sketch will be helpful for you.

4. The Sketch:

#include <Tiny4kOLED.h>
#include<TinyRTClib.h>
#include <TinyWireM.h>

RTC_DS1307 rtc;  
DateTime nowDT;
uint8_t myHour, myMin, mySec;

void setup()
{
  TinyWireM.begin();
  rtc.begin();
  rtc.adjust(DateTime(__DATE__, __TIME__));
  //rtc.adjust(DateTime(2024, 01, 21, 12, 59, 57));//set date-time manualy:yr,mo,dy,hr,mn,sec
  //------------------------------
  oled.begin();
  oled.clear();
  oled.switchRenderFrame();
  oled.clear();
  oled.switchRenderFrame();
  oled.clear();
  oled.setFont(FONT8X16); //(FONT6X8);
}

void loop()
{
  oled.setCursor(25, 10);
  nowDT = rtc.now();
  //--------------------
  myHour = nowDT.hour();
  if (myHour > 12) myHour -= 12;
  oled.print(myHour);
  oled.print(':');
  //-----------------------
  myMin = nowDT.minute();
  if (myMin < 10)
  {
    oled.print('0');    //shows leading zero
  }
  oled.print(myMin);
  oled.print(':');
  //------------------------
  mySec = nowDT.second();
  if (mySec < 10)
  {
    oled.print('0');
  }
  oled.println(mySec);
  //---------------
  oled.on();
}

Note: I always use Digispark ATtiny85 Dev Board to develop ATtiny85 MCU based projects and products; because, this platform provides a fantastic debugging environment.

12

hourvalue is a 2-digit BCD formatted quantity (like: 10 = 00010000). You need to convert it into ASCII codes like 0x31 and 0x30 (for 10) and store them in a char type array. After that use the name of the array in your command. (I don't have 96x16 OLED to work with "0.69_oled.h" Library.)

13

Now we are talking. thanks for your reply, yes i understand what are you talking about. But as i mentioned before i haven't got good understanding of programming language, but i think the formatting you talking about, is done in .cpp file of the "TinyRtclib" librery. BCD to BIN. i post it here:-

``// Code by JeeLabs http://news.jeelabs.org/code/
// Released to the public domain! Enjoy!
// Adafruit modifications for Aradruit DS1307 breakout
//  board Product 268, Arduino Due and Trinket/Gemma

// This code could be merged into Adafruit RTClib if the
//  Arduino IDE would properly handle conditionals
//#ifdef __AVR__
#include <avr/pgmspace.h>
// #if defined( __AVR_ATtinyX5__ )
#include <TinyWireM.h>
#define WIRE TinyWireM
// #else
//   #warning AVR
//   #include <Wire.h>
//   #define WIRE Wire
// #endif
//#else
// #include <Wire.h>
// #define PROGMEM
// #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
// #define WIRE Wire1
//#endif
#include "TinyRTClib.h"

#define DS1307_ADDRESS 0x68
#define SECONDS_PER_DAY 86400L

#define SECONDS_FROM_1970_TO_2000 946684800

#if (ARDUINO >= 100)
#include <Arduino.h> // capital A so it is error prone on case-sensitive filesystems
#else
#include <WProgram.h>
#endif

////////////////////////////////////////////////////////////////////////////////
// utility code, some of this could be exposed in the DateTime API if needed

const uint8_t daysInMonth[] PROGMEM = {31, 28, 31, 30, 31, 30,
                                       31, 31, 30, 31, 30, 31};

// number of days since 2000/01/01, valid for 2001..2099
static uint16_t date2days(uint16_t y, uint8_t m, uint8_t d) {
  if (y >= 2000)
    y -= 2000;
  uint16_t days = d;
  for (uint8_t i = 1; i < m; ++i)
    days += pgm_read_byte(daysInMonth + i - 1);
  if (m > 2 && y % 4 == 0)
    ++days;
  return days + 365 * y + (y + 3) / 4 - 1;
}

static long time2long(uint16_t days, uint8_t h, uint8_t m, uint8_t s) {
  return ((days * 24L + h) * 60 + m) * 60 + s;
}

////////////////////////////////////////////////////////////////////////////////
// DateTime implementation - ignores time zones and DST changes
// NOTE: also ignores leap seconds, see http://en.wikipedia.org/wiki/Leap_second

DateTime::DateTime(uint32_t t) {
  t -= SECONDS_FROM_1970_TO_2000; // bring to 2000 timestamp from 1970

  ss = t % 60;
  t /= 60;
  mm = t % 60;
  t /= 60;
  hh = t % 24;
  uint16_t days = t / 24;
  uint8_t leap;
  for (yOff = 0;; ++yOff) {
    leap = yOff % 4 == 0;
    if (days < 365 + leap)
      break;
    days -= 365 + leap;
  }
  for (m = 1;; ++m) {
    uint8_t daysPerMonth = pgm_read_byte(daysInMonth + m - 1);
    if (leap && m == 2)
      ++daysPerMonth;
    if (days < daysPerMonth)
      break;
    days -= daysPerMonth;
  }
  d = days + 1;
}

DateTime::DateTime(uint16_t year, uint8_t month, uint8_t day, uint8_t hour,
                   uint8_t min, uint8_t sec) {
  if (year >= 2000)
    year -= 2000;
  yOff = year;
  m = month;
  d = day;
  hh = hour;
  mm = min;
  ss = sec;
}

static uint8_t conv2d(const char *p) {
  uint8_t v = 0;
  if ('0' <= *p && *p <= '9')
    v = *p - '0';
  return 10 * v + *++p - '0';
}

// A convenient constructor for using "the compiler's time":
//   DateTime now (__DATE__, __TIME__);
// NOTE: using PSTR would further reduce the RAM footprint
DateTime::DateTime(const char *date, const char *time) {
  // sample input: date = "Dec 26 2009", time = "12:34:56"
  yOff = conv2d(date + 9);
  // Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  switch (date[0]) {
  case 'J':
    m = date[1] == 'a' ? 1 : m = date[2] == 'n' ? 6 : 7;
    break;
  case 'F':
    m = 2;
    break;
  case 'A':
    m = date[2] == 'r' ? 4 : 8;
    break;
  case 'M':
    m = date[2] == 'r' ? 3 : 5;
    break;
  case 'S':
    m = 9;
    break;
  case 'O':
    m = 10;
    break;
  case 'N':
    m = 11;
    break;
  case 'D':
    m = 12;
    break;
  }
  d = conv2d(date + 4);
  hh = conv2d(time);
  mm = conv2d(time + 3);
  ss = conv2d(time + 6);
}

uint8_t DateTime::dayOfWeek() const {
  uint16_t day = date2days(yOff, m, d);
  return (day + 6) % 7; // Jan 1, 2000 is a Saturday, i.e. returns 6
}

uint32_t DateTime::unixtime(void) const {
  uint32_t t;
  uint16_t days = date2days(yOff, m, d);
  t = time2long(days, hh, mm, ss);
  t += SECONDS_FROM_1970_TO_2000; // seconds from 1970 to 2000

  return t;
}

long DateTime::secondstime(void) const {
  long t;
  uint16_t days = date2days(yOff, m, d);
  t = time2long(days, hh, mm, ss);
  return t;
}

////////////////////////////////////////////////////////////////////////////////
// RTC_DS1307 implementation

static uint8_t bcd2bin(uint8_t val) { return val - 6 * (val >> 4); }
static uint8_t bin2bcd(uint8_t val) { return val + 6 * (val / 10); }

uint8_t RTC_DS1307::begin(void) { return 1; }

#if (ARDUINO >= 100)

uint8_t RTC_DS1307::isrunning(void) {
  WIRE.beginTransmission(DS1307_ADDRESS);
  WIRE.write(0);
  WIRE.endTransmission();

  WIRE.requestFrom(DS1307_ADDRESS, 1);
  uint8_t ss = WIRE.read();
  return !(ss >> 7);
}

void RTC_DS1307::adjust(const DateTime &dt) {
  WIRE.beginTransmission(DS1307_ADDRESS);
  WIRE.write(0);
  WIRE.write(bin2bcd(dt.second()));
  WIRE.write(bin2bcd(dt.minute()));
  WIRE.write(bin2bcd(dt.hour()));
  WIRE.write(bin2bcd(0));
  WIRE.write(bin2bcd(dt.day()));
  WIRE.write(bin2bcd(dt.month()));
  WIRE.write(bin2bcd(dt.year() - 2000));
  WIRE.write(0);
  WIRE.endTransmission();
}

DateTime RTC_DS1307::now() {
  WIRE.beginTransmission(DS1307_ADDRESS);
  WIRE.write(0);
  WIRE.endTransmission();

  WIRE.requestFrom(DS1307_ADDRESS, 7);
  uint8_t ss = bcd2bin(WIRE.read() & 0x7F);
  uint8_t mm = bcd2bin(WIRE.read());
  uint8_t hh = bcd2bin(WIRE.read());
  WIRE.read();
  uint8_t d = bcd2bin(WIRE.read());
  uint8_t m = bcd2bin(WIRE.read());
  uint16_t y = bcd2bin(WIRE.read()) + 2000;

  return DateTime(y, m, d, hh, mm, ss);
}

#else

uint8_t RTC_DS1307::isrunning(void) {
  WIRE.beginTransmission(DS1307_ADDRESS);
  WIRE.send(0);
  WIRE.endTransmission();

  WIRE.requestFrom(DS1307_ADDRESS, 1);
  uint8_t ss = WIRE.receive();
  return !(ss >> 7);
}

void RTC_DS1307::adjust(const DateTime &dt) {
  WIRE.beginTransmission(DS1307_ADDRESS);
  WIRE.send(0);
  WIRE.send(bin2bcd(dt.second()));
  WIRE.send(bin2bcd(dt.minute()));
  WIRE.send(bin2bcd(dt.hour()));
  WIRE.send(bin2bcd(0));
  WIRE.send(bin2bcd(dt.day()));
  WIRE.send(bin2bcd(dt.month()));
  WIRE.send(bin2bcd(dt.year() - 2000));
  WIRE.send(0);
  WIRE.endTransmission();
}

DateTime RTC_DS1307::now() {
  WIRE.beginTransmission(DS1307_ADDRESS);
  WIRE.send(0);
  WIRE.endTransmission();

  WIRE.requestFrom(DS1307_ADDRESS, 7);
  uint8_t ss = bcd2bin(WIRE.receive() & 0x7F);
  uint8_t mm = bcd2bin(WIRE.receive());
  uint8_t hh = bcd2bin(WIRE.receive());
  WIRE.receive();
  uint8_t d = bcd2bin(WIRE.receive());
  uint8_t m = bcd2bin(WIRE.receive());
  uint16_t y = bcd2bin(WIRE.receive()) + 2000;

  return DateTime(y, m, d, hh, mm, ss);
}

#endif

////////////////////////////////////////////////////////////////////////////////
// RTC_Millis implementation

long RTC_Millis::offset = 0;

void RTC_Millis::adjust(const DateTime &dt) {
  offset = dt.unixtime() - millis() / 1000;
}

DateTime RTC_Millis::now() { return (uint32_t)(offset + millis() / 1000); }

////////////////////////////////////////////////////////////////////////////////
`

by the way i have posted 0.69_oled librery at the top for your reference.

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