educ8stv_rtctft160_manualadjust.ino

// original sketch from http://educ8s.tv/arduino-real-time-clock/
// Nicu FLORICA (niq_ro) from http://www.arduinotehniq.com 
// made some chenages for animate display with blinking signs
// eliminate library for clock, use just subroutines
// use 3 buttons for manual adjust the data & clock

#include <Adafruit_ST7735.h>
#include <Adafruit_GFX.h>
#include <Wire.h>
#include <SPI.h>

#define TFT_CS     9
#define TFT_RST    7                      
#define TFT_DC     8
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS,  TFT_DC, TFT_RST);

// Option 2: use any pins but a little slower!
#define TFT_SCLK 13   // set these to be whatever pins you like!
#define TFT_MOSI 11   // set these to be whatever pins you like!

float maxTemperature=0;
float minTemperature=200;
char charMinTemperature[10];
char charMaxTemperature[10];
char timeChar[100];
char dateChar[50];
char temperatureChar[10];

float temperature = 0;
float previousTemperature = 0;

String dateString;
int minuteNow=0;
int minutePrevious=0;


#define DS3231_I2C_ADDRESS 104
byte tMSB, tLSB;
float temp3231;
float temperatura, temperatura0;
byte hh, mm, ss;
byte yy, ll, dd, zz;

#define meniu 2 
#define minus 3
#define plus 4
int nivel = 0;   // if is 0 - clock
                 // if is 1 - hour adjust
                 // if is 2 - minute adjust

int hh1, mm1, zz1, dd1, ll1, yy1;   
int maxday;
boolean initial = 1;
char chartemp[3];
//char chartemp2[3];
//char chartemp3[2];
String ziinsapt;

void setup () 
{
    tft.initR(INITR_BLACKTAB);
    tft.fillScreen(ST7735_BLACK);
    Serial.begin(9600);
    Wire.begin();
pinMode(meniu, INPUT); 
pinMode(plus, INPUT); 
pinMode(minus, INPUT); 
digitalWrite(meniu, HIGH);  // put inputs in high state (when push is to ground -> low state)
digitalWrite(plus, HIGH);
digitalWrite(minus, HIGH);
    printText("TEMPERATURE", ST7735_GREEN,30,85,1);  // Temperature Static Text
    printText("MAX", ST7735_RED,18,130,1);
    printText("MIN", ST7735_BLUE,95,130,1);

// setDS3231time(byte second, byte minute, byte hour, byte dayOfWeek, byte dayOfMonth, byte month, byte year);
//setDS3231time(0, 45, 13, 0, 25, 11, 2016;
}


void loop () 
{

if (nivel == 0)
{
if (digitalRead(meniu) == LOW)
  {
  nivel = nivel+1;
  hh1=hh;
  mm1=mm;
  zz1=zz;
  yy1=yy;
  ll1=ll;
  dd1=dd;
  delay(500);
  tft.fillScreen(ST7735_BLACK);
  tft.fillRect(0,0,128,160,ST7735_BLACK);
  }
 
  float temperature = get3231Temp();
  readDS3231time(&ss, &mm, &hh, &zz, &dd, &ll,&yy);
  
  minuteNow = mm;
  if(minuteNow!=minutePrevious || initial)
  {
    initial = 0;
    dateString = getDayOfWeek(zz)+", ";
    dateString = dateString+String(dd)+"/"+String(ll);
    dateString= dateString+"/"+ String(yy); 
    minutePrevious = minuteNow;
    String hours = "";
    if(hh<10)
    {
         hours = hours+" "+String(hh);
    }else  
    hours = hours+ String(hh);
    if(mm<10)
    {
        hours = hours+" 0"+String(mm);
    }else
    {
        hours = hours+" "+String(mm);
    }
    
    hours.toCharArray(timeChar,100);
    tft.fillRect(0,0,160,65,ST7735_BLACK);
  //  printText(timeChar, ST7735_WHITE,20,25,3);
    printText(timeChar, ST7735_YELLOW,5,25,4);
    dateString.toCharArray(dateChar,50);
    printText(dateChar, ST7735_GREEN,8,5,1);
  }
  
  if(temperature != previousTemperature)
  {
    previousTemperature = temperature;
    String temperatureString = String(temperature,1);
    temperatureString.toCharArray(temperatureChar,10);
    tft.fillRect(0,98,128,27,ST7735_BLACK);
    printText(temperatureChar, ST7735_WHITE,10,100,3);
    printText("o", ST7735_WHITE,90,95,2);
    printText("C", ST7735_WHITE,105,100,3);

    if(temperature>maxTemperature)
    {
      maxTemperature = temperature;
    }
      dtostrf(maxTemperature,5, 1, charMaxTemperature); 
      tft.fillRect(3,142,33,20,ST7735_BLACK);
      printText(charMaxTemperature, ST7735_WHITE,3,145,1);
      printText("o", ST7735_WHITE,35,140,1);
      printText("C", ST7735_WHITE,41,145,1);
    //}
    if(temperature<minTemperature)
    {
      minTemperature = temperature;
    }
      dtostrf(minTemperature,5, 1, charMinTemperature); 
      tft.fillRect(75,140,36,18,ST7735_BLACK);
      printText(charMinTemperature, ST7735_WHITE,80,145,1);
      printText("o", ST7735_WHITE,112,140,1);
      printText("C", ST7735_WHITE,118,145,1);
    //}
  }

delay(500);
//     printText("o", ST7735_WHITE,62,28,1);
//     printText("o", ST7735_WHITE,62,35,1);
     printText("o", ST7735_YELLOW,62,28,1);
     printText("o", ST7735_YELLOW,62,35,1);

delay(500);
     printText("o", ST7735_BLACK,62,28,1);
     printText("o", ST7735_BLACK,62,35,1);
} // end usual case (clock)


if (nivel == 1)   // change hours
{
if (digitalRead(meniu) == LOW)
  {
  nivel = nivel+1;
   delay(500);
  tft.fillScreen(ST7735_BLACK);
  tft.fillRect(0,0,128,160,ST7735_BLACK);
  }    

printText("SETTING", ST7735_GREEN,10,20,2);  // Temperature Static Text
printText("HOUR:", ST7735_GREEN,10,36,2);  // Temperature Static Text
dtostrf(hh1,3, 0, chartemp); 
      tft.fillRect(50,50,70,18,ST7735_BLACK);
      delay(50);
      printText(chartemp, ST7735_WHITE,60,50,2);
      delay(50);
      
if (digitalRead(plus) == LOW)
    {
    hh1 = hh1+1;
    delay(150);
    }
if (digitalRead(minus) == LOW)
    {
    hh1 = hh1-1;
    delay(150);
    }    
if (hh1 > 23) hh1 = 0;
if (hh1 < 0) hh1 = 23;       
     
}  // end loop nivel = 1 (change the hours)

if (nivel == 2)   // change minutes
{
if (digitalRead(meniu) == LOW)
  {
  nivel = nivel+1;
  delay(500);
  tft.fillScreen(ST7735_BLACK);
  tft.fillRect(0,0,128,160,ST7735_BLACK);
  }    

printText("SETTING", ST7735_GREEN,10,20,2);  // Temperature Static Text
tft.fillRect(10,35,70,18,ST7735_BLACK);
printText("MINUTE:", ST7735_GREEN,10,35,2);  // Temperature Static Text
Serial.println(mm1);
dtostrf(mm1,3, 0, chartemp); 
      tft.fillRect(50,50,70,18,ST7735_BLACK);
      delay(50);
      printText(chartemp, ST7735_WHITE,60,50,2);
      delay(50);
     
if (digitalRead(plus) == LOW)
    {
    mm1 = mm1+1;
    delay(150);
    }
if (digitalRead(minus) == LOW)
    {
    mm1 = mm1-1;
    delay(150);
    }    
if (mm1 > 59) mm1 = 0;
if (mm1 < 0) mm1 = 59;       
     
}  // end loop nivel = 2 (change the minutes)

if (nivel == 3)   // change day in week
{
if (digitalRead(meniu) == LOW)
  {
  nivel = nivel+1;
  delay(500);
  tft.fillScreen(ST7735_BLACK);
  tft.fillRect(0,0,128,160,ST7735_BLACK);
  }    

printText("SETTING", ST7735_GREEN,10,20,2);  // Temperature Static Text
tft.fillRect(0,35,128,18,ST7735_BLACK);
printText("Day in Week:", ST7735_GREEN,10,40,1);  // Temperature Static Text
//Serial.println(mm1);
dtostrf(zz1,3, 0, chartemp); 
      tft.fillRect(50,50,70,18,ST7735_BLACK);
      delay(50);
      printText(chartemp, ST7735_WHITE,60,50,2);
tft.fillRect(10,80,100,18,ST7735_BLACK);      
if (zz1 == 1) printText("1 - Monday", ST7735_RED,10,80,1);  // Temperature Static Text
if (zz1 == 2) printText("2 - Tuesday", ST7735_RED,10,80,1);  // Temperature Static Text
if (zz1 == 3) printText("3 - Wednesday", ST7735_RED,10,80,1);  // Temperature Static Text
if (zz1 == 4) printText("4 - Thursday", ST7735_RED,10,80,1);  // Temperature Static Text
if (zz1 == 5) printText("5 - Friday", ST7735_RED,10,80,1);  // Temperature Static Text
if (zz1 == 6) printText("6 - Saturday", ST7735_RED,10,80,1);  // Temperature Static Text
if (zz1 == 0) printText("0 - Sunday", ST7735_RED,10,80,1);  // Temperature Static Text  
    delay(50);
     
if (digitalRead(plus) == LOW)
    {
    zz1 = zz1+1;
    delay(150);
    }
if (digitalRead(minus) == LOW)
    {
    zz1 = zz1-1;
    delay(150);
    }    
if (zz1 > 6) zz1 = 0;
if (zz1 < 0) zz1 = 6;       
     
}  // end loop nivel = 3 (change the day of the week)

if (nivel == 4)   // change year
{
if (digitalRead(meniu) == LOW)
  {
  nivel = nivel+1;
  delay(500);
  tft.fillScreen(ST7735_BLACK);
  tft.fillRect(0,0,128,160,ST7735_BLACK);
  tft.fillRect(10,80,100,18,ST7735_BLACK);    
  }    

printText("SETTING", ST7735_GREEN,10,20,2);  // Temperature Static Text
tft.fillRect(10,35,70,18,ST7735_BLACK);
printText("YEAR:", ST7735_GREEN,10,35,2);  // Temperature Static Text
dtostrf(yy1,3, 0, chartemp); 
      tft.fillRect(40,50,80,18,ST7735_BLACK);
      tft.fillRect(10,80,100,18,ST7735_BLACK);  // erase last explication...
      delay(50);
      printText("20", ST7735_WHITE,45,50,2);
      printText(chartemp, ST7735_WHITE,60,50,2);
      delay(50);

     
if (digitalRead(plus) == LOW)
    {
    yy1 = yy1+1;
    delay(150);
    }
if (digitalRead(minus) == LOW)
    {
    yy1 = yy1-1;
    delay(150);
    }    
if (yy1 > 49) yy1 = 49;
if (yy1 < 16) yy1 = 16;       
     
}  // end loop stare = 4 (change the year)


if (nivel == 5)   // change mounth
{
if (digitalRead(meniu) == LOW)
  {
  nivel = nivel+1;
  delay(500);
  tft.fillScreen(ST7735_BLACK);
   tft.fillRect(10,80,100,18,ST7735_BLACK);    
  }    
printText("SETTING", ST7735_GREEN,10,20,2);  // Temperature Static Text
tft.fillRect(10,35,70,18,ST7735_BLACK);
printText("MONTH:", ST7735_GREEN,10,35,2);  // Temperature Static Text
dtostrf(ll1,3, 0, chartemp); 
      tft.fillRect(40,50,80,18,ST7735_BLACK);
      tft.fillRect(10,80,100,18,ST7735_BLACK);  // erase last explication...
      delay(50);
      printText(chartemp, ST7735_WHITE,60,50,2);
      delay(50);
     
if (digitalRead(plus) == LOW)
    {
    ll1 = ll1+1;
    delay(150);
    }
if (digitalRead(minus) == LOW)
    {
    ll1 = ll1-1;
    delay(150);
    }    
   
if (ll1 > 12) ll1 = 1;
if (ll1 < 1) ll1 = 12;       
     
}  // end loop stare = 5 (change the day as data)

if (nivel == 6)   // change day as data
{
if (digitalRead(meniu) == LOW)
  {
  nivel = nivel+1;
  delay(500);
  tft.fillScreen(ST7735_BLACK);
 tft.fillRect(10,80,100,18,ST7735_BLACK);      
  }    

printText("SETTING", ST7735_GREEN,10,20,2);  // Temperature Static Text
tft.fillRect(10,35,70,18,ST7735_BLACK);
printText("DAY:", ST7735_GREEN,10,35,2);  // Temperature Static Text
dtostrf(dd1,3, 0, chartemp); 
      tft.fillRect(50,50,70,18,ST7735_BLACK);
      tft.fillRect(10,80,100,18,ST7735_BLACK);  // erase last explication...
      delay(50);
      printText(chartemp, ST7735_WHITE,60,50,2);
      delay(50);
 
if (digitalRead(plus) == LOW)
    {
    dd1 = dd1+1;
    delay(150);
    }
if (digitalRead(minus) == LOW)
    {
    dd1 = dd1-1;
    delay(150);
    }    
    
 // Dawn & Dusk controller. http://andydoz.blogspot.ro/2014_08_01_archive.html
 if (ll == 4 || ll == 5 || ll == 9 || ll == 11) { //30 days hath September, April June and November
    maxday = 30;
  }
  else {
  maxday = 31; //... all the others have 31
  }
  if (ll ==2 && yy % 4 ==0) { //... Except February alone, and that has 28 days clear, and 29 in a leap year.
    maxday = 29;
  }
  if (ll ==2 && ll % 4 !=0) {
    maxday = 28;
  }

if (dd1 > maxday) dd1 = 1;
if (dd1 < 1) dd1 = maxday;       
     
}  // end loop nivel = 6 (change the day as data)


 if (nivel >=7)  // readfy to return to main loop
 {
  setDS3231time(0, mm1, hh1, zz1, dd1, ll1, yy1);
  nivel = 0;  
// omm = 99;
 previousTemperature= 0.0;
 initial = 1;
    printText("TEMPERATURE", ST7735_GREEN,30,85,1);  // Temperature Static Text
    printText("MAX", ST7735_RED,18,130,1);
    printText("MIN", ST7735_BLUE,95,130,1);
 }
}  // end main loop


void printText(char *text, uint16_t color, int x, int y,int textSize)
{
  tft.setCursor(x, y);
  tft.setTextColor(color);
  tft.setTextSize(textSize);
  tft.setTextWrap(true);
  tft.print(text);
}

String getDayOfWeek(int i)
{
  switch(i)
  {
    case 0: return "Monday";break;
    case 1: return "Tuesday";break;
    case 2: return "Wednesday";break;
    case 3: return "Thursday";break;
    case 4: return "Friday";break;
    case 5: return "Saturday";break;
    case 6: return "Sunday";break;
    default: return "Monday";break;
  }
}

float get3231Temp() // from http://www.goodliffe.org.uk/arduino/rtc_ds3231.php
{
  //temp registers (11h-12h) get updated automatically every 64s
  Wire.beginTransmission(DS3231_I2C_ADDRESS);
  Wire.write(0x11);
  Wire.endTransmission();
  Wire.requestFrom(DS3231_I2C_ADDRESS, 2);
 
  if(Wire.available()) {
    tMSB = Wire.read(); //2's complement int portion
    tLSB = Wire.read(); //fraction portion
   
    temp3231 = (tMSB & B01111111); //do 2's math on Tmsb
    temp3231 += ( (tLSB >> 6) * 0.25 ); //only care about bits 7 & 8
  }
  else {
    //oh noes, no data!
  }
   
  return temp3231;
}

// http://forum.arduino.cc/index.php?topic=398891.0
void setDS3231time(byte second, byte minute, byte hour, byte dayOfWeek, byte
                   dayOfMonth, byte month, byte year)
{
    // sets time and date data to DS3231
    Wire.beginTransmission(DS3231_I2C_ADDRESS);
    Wire.write(0); // set next input to start at the seconds register
    Wire.write(decToBcd(second)); // set seconds
    Wire.write(decToBcd(minute)); // set minutes
    Wire.write(decToBcd(hour)); // set hours
    Wire.write(decToBcd(dayOfWeek)); // set day of week (1=Sunday, 7=Saturday)
    Wire.write(decToBcd(dayOfMonth)); // set date (1 to 31)
    Wire.write(decToBcd(month)); // set month
    Wire.write(decToBcd(year)); // set year (0 to 99)
    Wire.endTransmission();
}

// Convert binary coded decimal to normal decimal numbers
byte bcdToDec(byte val)
{
    return ( (val / 16 * 10) + (val % 16) );
}

// Convert normal decimal numbers to binary coded decimal
byte decToBcd(byte val)
{
    return ( (val / 10 * 16) + (val % 10) );
}

void readDS3231time(byte *second,
                    byte *minute,
                    byte *hour,
                    byte *dayOfWeek,
                    byte *dayOfMonth,
                    byte *month,
                    byte *year)
{
    Wire.beginTransmission(DS3231_I2C_ADDRESS);
    Wire.write(0); // set DS3231 register pointer to 00h
    Wire.endTransmission();
    Wire.requestFrom(DS3231_I2C_ADDRESS, 7);
    // request seven bytes of data from DS3231 starting from register 00h
    *second = bcdToDec(Wire.read() & 0x7f);
    *minute = bcdToDec(Wire.read());
    *hour = bcdToDec(Wire.read() & 0x3f);
    *dayOfWeek = bcdToDec(Wire.read());
    *dayOfMonth = bcdToDec(Wire.read());
    *month = bcdToDec(Wire.read());
    *year = bcdToDec(Wire.read());
}