//#define SKETCH_NAME "temp_time_sd_oled";

#include "DS3231.h"
#include <DS18B20.h>

#include <SPI.h>
#include <SD.h>
File myFile;

DS3231 Clock;
boolean Century = false;
boolean PM = false;

int x = 0;
DS18B20 ds(2);

#include "SSD1306Ascii.h"
#include "SSD1306AsciiAvrI2c.h"
#define I2C_ADDRESS 0x3C
#define RST_PIN -1
SSD1306AsciiAvrI2c oled;

String newline,L1,L2,L3,L4,L5,L6,L7;
int YT_sec, YT_min, YT_hr, YT_yr, YT_mt, YT_dt;

//-----------------------------------------------------------------  
void setup () {

  Wire.begin();
  Serial.begin(9600);
  Serial.println("temp_time_sd_oled");

  Serial.println("Blue,Red");
  Serial.println();

#if RST_PIN >= 0
  oled.begin(&Adafruit128x64, I2C_ADDRESS, RST_PIN);
#else // RST_PIN >= 0
  oled.begin(&Adafruit128x64, I2C_ADDRESS);
#endif // RST_PIN >= 0
  // Call oled.setI2cClock(frequency) to change from the default frequency.

  oled.setFont(Adafruit5x7);

  uint32_t m = micros();
  oled.clear();
  oled.println("Hello world!");

}

//-----------------------------------------------------------------------------------
void loop () {

YT_sec = Clock.getSecond();
YT_min = Clock.getMinute();
YT_hr = Clock.getHour(Century, PM);
YT_yr = Clock.getYear();
YT_mt = Clock.getMonth(Century);
YT_dt = Clock.getDate();

String dt, dt_temp;
dt=String(YT_yr) + "-" + String(YT_mt) + "-" + String(YT_dt) + " " + String(YT_hr) + ":" + String(YT_min)  + ":" + String(YT_sec) + ",";
dt_temp = dt;

if (!SD.begin(20)) {
    Serial.println("initialization failed!");
    while (1);
  }
myFile = SD.open("handler.txt", FILE_WRITE);

if (myFile) {
    myFile.print(dt);
   } else {
    
    Serial.println("error opening SD card file");
  }

Serial.print(dt);

//----------------------------------------------- 
x = 0;

  while (ds.selectNext()) {
    x = x + 1;
        
    if (x > 1){
      Serial.print(",");
      myFile.print(",");
      dt_temp = dt_temp + ",";
    
    }
    Serial.print(ds.getTempF());
    myFile.print(ds.getTempF());
    dt_temp = dt_temp + String(ds.getTempF());
    
    }
//---------------------------------------------
  
  Serial.println();
  myFile.println();
  myFile.close();
  updateoled(dt_temp);
  
  delay(3000);

}

//------------------------------------------------------------------------------------------ 
void updateoled(String newreading)
{
/*
 
L1=L2;
L2=L3;
L3=L4;
L4=L5;
L5=L6;
L6=L7;
L7= newreading;

display.setCursor(0,8);
display.print(L1);
display.setCursor(0,16);
display.print(L2);
display.setCursor(0,24);
display.print(L3);
display.setCursor(0,32);
display.print(L4);
display.setCursor(0,40);
display.print(L5);
display.setCursor(0,48);
display.print(L6);
display.setCursor(0,56);
display.print(L7);

*/

}  
//------------------------------------------