Published January 8, 2021 © GPL3+

Freg troll "Stop eating" v.1

The unit records data on the time and number of refrigerator openings to the SD card, comments on people's actions

IntermediateFull instructions provided233

Things used in this project

Hardware components

Arduino Nano R3

SparkFun MP3 Player Shield

Maxim Integrated DS3231M - ±5ppm, I2C Real-Time Clock

Linear Regulator with Adjustable Output

SparkFun Level Shifting microSD Breakout

Software apps and online services

Arduino IDE

Story

Hello, dear friends! I wanted to share with you the idea of an unassuming device that greatly diversifies life in your kitchen and dining room, especially if someone from your household likes to spend too much time there.

""Refrigerator Troll" is an autonomous device that records the time and duration of opening the refrigerator door, the MP3 player comments on actions depending on the time of opening the refrigerator door with "demotivating" sayings, poems and proverbs. In the future, to enhance the wow effect, it is planned to camouflage its body under a fruit juice bag. The project uses Arduino Nano, DFPlayer mini (speaker 0.5 W, 8 ohms), real-time clock module DS3231, SD memory card module. The voltage is supplied from two 18650 batteries via a homemade power stabilizer based on the lm7805cv.

The refrigerator opening sensor - a self-made analog photo sensor-is triggered when a light enters or lights up the refrigerator. At this point, the Arduino records the opening time of the refrigerator on the memory card, the MP3 player randomly pronounces one of audio tracks. In the future, I plan to link the degree of cynicism of the statements of the Refrigerator troll to the time of opening the refrigerator door or the total number of openings of this door per day.

Freg Troll

"Refrigerator Troll" is an autonomous device that records the time and duration of opening the refrigerator door, the MP3 player comments on actions depending on the time of opening the refrigerator door with "demotivating" sayings, poems and proverbs. In the future, to enhance the wow effect, it is planned to camouflage its body under a fruit juice bag. The project uses Arduino Nano, DFPlayer mini (speaker 0.5 W, 8 ohms), real-time clock module DS3231, SD memory card module. The voltage is supplied from two 18650 batteries via a homemade power stabilizer based on the lm7805cv.

Code

Freg Troll

Freg Troll

C/C++

#include <SPI.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <SoftwareSerial.h>

#include <DFPlayerMega.h>

#include <SD.h>
LiquidCrystal_I2C _lcd1(0x27, 16, 4);
int _dispTempLength1=0;
boolean _isNeedClearDisp1;


File _sd1DF;
String _sd1TS;

int _volsetup= 25;
int _eqsetup= 4;
DFPlayerMega dfPlayerMega= DFPlayerMega ();
int Folder;
long Track;
bool StartTrack;
bool StopTrack;
bool _dfstart1= 0;
bool _dfstart1I= 0;
bool _dfpause1= 0;
bool _dfpause1I= 0;
struct _I2CRealRimeClockTime
{
 byte seconds = 0;
 byte minutes = 0;
 byte Hours = 0;
 byte weekday = 0;
 byte day = 0;
 byte month = 0;
 byte year = 0;
 unsigned long startTime = 0;
};
_I2CRealRimeClockTime _RTC1;
int _gtv2;
String _gtv5;
bool _gtv6 = 0;
int _disp4oldLength = 0;
int _swi1;
bool _trgrt1 = 0;
bool _trgrt1I = 0;
int _disp1oldLength = 0;
bool _trgrt2 = 0;
bool _trgrt2I = 0;
bool _RTCST_Ost1 = 0;
int _disp5oldLength = 0;
int _swi2;
int _disp2oldLength = 0;
bool _tim1I = 0;
bool _tim1O = 0;
unsigned long _tim1P = 0UL;
int _disp3oldLength = 0;
String _RTC1_GetTime1_StrOut;
byte _RTC1_GetTime1_HourOut = 0;
byte _RTC1_GetTime1_MinOut = 0;
byte _RTC1_GetTime1_SecOut = 0;
byte _RTC1_GetTime1_DayOut = 0;
byte _RTC1_GetTime1_MounthOut = 0;
byte _RTC1_GetTime1_YearOut = 0;
byte _RTC1_GetTime1_DowOut = 0;
bool _sd1SVOS1 = 0;
long _strFunrand1 = 0L;

void setup()
{
pinMode(8, OUTPUT); 
digitalWrite(8, 0); 


Wire.begin();
delay(10);
Wire.beginTransmission(68);
Wire.write(0x0E);
Wire.write(B00000000);
Wire.write(B10001000);
Wire.endTransmission();
_RTC1.startTime = millis() - 1000;
_lcd1.init();
_lcd1.backlight();
randomSeed(analogRead(1));
SD.begin(9);
SPI.begin();
pinMode(10, OUTPUT);
Serial.begin (9600);
dfPlayerMega.set_serial (Serial);
delay(500);
dfPlayerMega.normal_mode();
delay(500);
dfPlayerMega.set_volume( _volsetup);
delay(500);
dfPlayerMega.set_EQ(_eqsetup);
delay(500);


}
void loop()
{

if (_isNeedClearDisp1) {_lcd1.clear(); _isNeedClearDisp1= 0;}





//:1
 if (!(0))
{ if (!(_RTCST_Ost1))
{set3231Date(0x68, &_RTC1, 0, 47, 23, 18, 12, 1972, 1);
get3231Date(0x68, &_RTC1);
_RTCST_Ost1 = 1;
}}
 else
{ _RTCST_Ost1 = 0;}
get3231Date(0x68, &_RTC1);
_RTC1_GetTime1_StrOut = ( _convertRealTimeClockNumberToString(_RTC1.day))+
String("-")+
( _convertRealTimeClockNumberToString(_RTC1.month))+
String("-")+
(String("20") +( _convertRealTimeClockNumberToString (_RTC1.year)))+
String(", ")+
( _convertRealTimeClockNumberToString(_RTC1.Hours))+
String(":")+
( _convertRealTimeClockNumberToString(_RTC1.minutes))+
String(":")+
( _convertRealTimeClockNumberToString(_RTC1.seconds));
_RTC1_GetTime1_HourOut = _RTC1.Hours;
_RTC1_GetTime1_MinOut = _RTC1.minutes;
_RTC1_GetTime1_SecOut = _RTC1.seconds;
_RTC1_GetTime1_DayOut = _RTC1.day;
_RTC1_GetTime1_MounthOut = _RTC1.month;
_RTC1_GetTime1_YearOut = _RTC1.year;
_RTC1_GetTime1_DowOut = _RTC1.weekday;
if (!(0)) {
_dispTempLength1 = ((_RTC1_GetTime1_StrOut)).length();
if (_disp1oldLength > _dispTempLength1) {_isNeedClearDisp1 = 1;} 
_disp1oldLength = _dispTempLength1;
_lcd1.setCursor(0, 0);
_lcd1.print((_RTC1_GetTime1_StrOut));
} else {
if (_disp1oldLength > 0) {_isNeedClearDisp1 = 1; _disp1oldLength = 0;} 
}
_gtv5 = _RTC1_GetTime1_StrOut;
_gtv2 = _RTC1_GetTime1_HourOut;

//:2

if(_gtv6)
{_swi1=1;}
else
{_swi1=0;}
if (!(0)) {
_dispTempLength1 = (((String(_swi1, DEC)))).length();
if (_disp3oldLength > _dispTempLength1) {_isNeedClearDisp1 = 1;} 
_disp3oldLength = _dispTempLength1;
_lcd1.setCursor(0, 2);
_lcd1.print(((String(_swi1, DEC))));
} else {
if (_disp3oldLength > 0) {_isNeedClearDisp1 = 1; _disp3oldLength = 0;} 
}
if (_gtv6) { if (_trgrt2I) { _trgrt2 = 0;} else {_trgrt2 = 1; _trgrt2I = 1;} } else {_trgrt2 = 0; _trgrt2I = 0;}; 
 if(_trgrt2) {_tim1O = 1; _tim1I = 1;} else { if(_tim1I) {_tim1I = 0; _tim1P = millis();} else { if (_tim1O) {if ( _isTimer(_tim1P, 1000)) _tim1O = 0;}}}
if(_tim1O)
{_swi2=1;}
else
{_swi2=0;}
if (!(0)) {
_dispTempLength1 = (((String(_swi2, DEC)))).length();
if (_disp4oldLength > _dispTempLength1) {_isNeedClearDisp1 = 1;} 
_disp4oldLength = _dispTempLength1;
_lcd1.setCursor(4, 2);
_lcd1.print(((String(_swi2, DEC))));
} else {
if (_disp4oldLength > 0) {_isNeedClearDisp1 = 1; _disp4oldLength = 0;} 
}
if (_trgrt2) {
_strFunrand1 = random(1, 7);
}
if (!(0)) {
_dispTempLength1 = (((String(_strFunrand1, DEC)))).length();
if (_disp5oldLength > _dispTempLength1) {_isNeedClearDisp1 = 1;} 
_disp5oldLength = _dispTempLength1;
_lcd1.setCursor(9, 1);
_lcd1.print(((String(_strFunrand1, DEC))));
} else {
if (_disp5oldLength > 0) {_isNeedClearDisp1 = 1; _disp5oldLength = 0;} 
}
Folder = 1;
Track = _strFunrand1;
StartTrack = _trgrt2;
StopTrack = 0;

 if (StartTrack) { if (_dfstart1I) { _dfstart1 = 0;} else {_dfstart1 = 1; _dfstart1I = 1;} } else {_dfstart1 = 0; _dfstart1I = 0;};
 if( _dfstart1 == true) {dfPlayerMega.start_track ( Folder, Track );};

 if (StopTrack) { if (_dfpause1I) { _dfpause1 = 0;} else {_dfpause1 = 1; _dfpause1I = 1;} } else {_dfpause1 = 0; _dfpause1I = 0;};
 if( _dfpause1 == true) {dfPlayerMega.pause ();};

//:3
if (!(0)) {
_dispTempLength1 = (((String( (analogRead (0)), DEC)))).length();
if (_disp2oldLength > _dispTempLength1) {_isNeedClearDisp1 = 1;} 
_disp2oldLength = _dispTempLength1;
_lcd1.setCursor(0, 1);
_lcd1.print(((String( (analogRead (0)), DEC))));
} else {
if (_disp2oldLength > 0) {_isNeedClearDisp1 = 1; _disp2oldLength = 0;} 
}
digitalWrite(8, ( (analogRead (0))) <= (400));
_gtv6 = ( (analogRead (0))) <= (400);
if (_gtv6) { if (_trgrt1I) { _trgrt1 = 0;} else {_trgrt1 = 1; _trgrt1I = 1;} } else {_trgrt1 = 0; _trgrt1I = 0;}; 
 if(_trgrt1)
{if(! _sd1SVOS1) {
_sd1TS = "000;"; 
_sd1TS+= "String;";
get3231Date(0x68, &_RTC1);
_sd1TS+= String(_RTC1.day); 
_sd1TS+= "-";
_sd1TS+= String(_RTC1.month); 
_sd1TS+= "-";
_sd1TS+= String(_RTC1.year); 
_sd1TS+= " ";
_sd1TS+= String(_RTC1.Hours); 
_sd1TS+= ":";
_sd1TS+= String(_RTC1.minutes); 
_sd1TS+= ":";
_sd1TS+= String(_RTC1.seconds); 
_sd1TS+= ";";
_sd1TS+= _gtv5; 
_sd1TS+= ";";
_sd1TS+= String(""); 
_sd1TS+= ";";
_sd1DF = SD.open("777.log", FILE_WRITE);
if (_sd1DF) {_sd1DF.println(_sd1TS); _sd1DF.close();}
_sd1SVOS1 = 1;}}
else
{if( _sd1SVOS1) {_sd1SVOS1 = 0; }}






}

bool _isTimer(unsigned long startTime, unsigned long period )
  {
  unsigned long currentTime;
currentTime = millis();
if (currentTime>= startTime) {return (currentTime>=(startTime + period));} else {return (currentTime >=(4294967295-startTime+period));}
  }
byte decToBcd(byte val)
 {
   return ( (val/10*16) + (val%10) );
 }
void set3231Date(int addres, struct _I2CRealRimeClockTime *timeStruct, int sec, int  minut, int hou, int dat, int mo, int ye, int daW)
{
  byte temp;

  Wire.beginTransmission(addres);
  Wire.write(0x00);
  if (sec < 0) {
    temp = timeStruct -> seconds;
  } else {
    temp = sec;
  }
  Wire.write(decToBcd(temp));
  if (minut < 0) {
    temp = timeStruct -> minutes;
  } else {
    temp = minut;
  }
  Wire.write(decToBcd(temp));
  if (hou < 0) {
    temp = timeStruct -> Hours;
  } else {
    temp = hou;
  }
  Wire.write(decToBcd(temp));
  if (daW < 0) {
    temp = timeStruct -> weekday;
  } else {
    temp = daW;
  }
  Wire.write(decToBcd(temp));
  if (dat < 0) {
    temp = timeStruct -> day;
  } else {
    temp = dat;
  }
  Wire.write(decToBcd(temp));
  if (mo < 0) {
    temp = timeStruct -> month;
  } else {
    temp = mo;
  }
  Wire.write(decToBcd(temp));
  if (ye < 0) {
    temp = timeStruct -> year;
  } else {
    temp = ye;
  }
  Wire.write(decToBcd(temp));
  Wire.endTransmission();
  timeStruct ->startTime = millis() - 1000;
}
void get3231Date(int addres, struct _I2CRealRimeClockTime *timeStruct)
{
  if (!(_isTimer ((timeStruct ->startTime), 250))) {
    return;
  }
  Wire.beginTransmission( addres);
  Wire.write(0x00);
  Wire.endTransmission();
  Wire.requestFrom(addres, 7);
  if (Wire.available()) {
    byte  seconds = Wire.read();
    byte minutes = Wire.read();
    byte hours   = Wire.read();
    byte day     = Wire.read();
    byte date    = Wire.read();
    byte month   = Wire.read();
    byte year    = Wire.read();
    timeStruct -> seconds = (((seconds & B11110000) >> 4) * 10 + (seconds & B00001111));
    timeStruct -> minutes = (((minutes & B11110000) >> 4) * 10 + (minutes & B00001111));
    timeStruct -> Hours = (((hours & B00110000) >> 4) * 10 + (hours & B00001111));
    timeStruct -> weekday = (day & B00000111);
    timeStruct -> day    = (((date & B00110000) >> 4) * 10 + (date & B00001111));
    timeStruct -> month   = (((month & B00010000) >> 4) * 10 + (month & B00001111));
    timeStruct -> year    = (((year & B11110000) >> 4) * 10 + (year & B00001111));
  } timeStruct ->startTime = millis();
}
String _convertRealTimeClockNumberToString(byte value)
{
  if (value > 9) {
    return String(value, DEC);
  }
  return (String("0") + String(value, DEC));
}

Freg troll "Stop eating" v.1

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Freg Troll

Code

Freg Troll

Credits

Владимир Сарана

Comments

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Freg troll "Stop eating" v.1

Freg troll "Stop eating" v.1

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Freg Troll

Code

Freg Troll

Credits

Владимир Сарана

Comments

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