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Medicine reminder project using Arduino

Medicine alarm for Patient

IntermediateFull instructions provided5 hours1,421
Medicine reminder project using Arduino

Things used in this project

Hardware components

Arduino UNO
Arduino UNO
×1
Real Time Clock (RTC)
Real Time Clock (RTC)
×1
Gravity:Digital Push Button (Yellow)
DFRobot Gravity:Digital Push Button (Yellow)
×1
Jumper wires (generic)
Jumper wires (generic)
×1
Solderless Breadboard Half Size
Solderless Breadboard Half Size
×1
RGB Backlight LCD - 16x2
Adafruit RGB Backlight LCD - 16x2
×1
Rotary potentiometer (generic)
Rotary potentiometer (generic)
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

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Code

medicine reminder

C/C++
medicine alarm
//Medicine Reminder using Arduino Uno

// Reminds to take medicine at 8am, 2pm, 8pm 

/*  The circuit:

   LCD RS pin to digital pin 12

   LCD Enable pin to digital pin 11

   LCD D4 pin to digital pin 5

   LCD D5 pin to digital pin 4

   LCD D6 pin to digital pin 3

   LCD D7 pin to digital pin 2

   LCD R/W pin to ground

   LCD VSS pin to ground

   LCD VCC pin to 5V

   10K resistor:

   ends to +5V and ground

   wiper to LCD VO pin (pin 3)*/


#include <LiquidCrystal.h>

#include <Wire.h>

#include <RTClib.h>

#include <EEPROM.h>


int pushVal = 0;                           

int val;

int val2;

int addr = 0;


RTC_DS3231 rtc;


const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;                 // lcd pins

LiquidCrystal lcd(rs, en, d4, d5, d6, d7);


#define getWellsoon 0                                           

#define HELP_SCREEN 1

#define TIME_SCREEN 2


//bool pushPressed;                               //flag to keep track of push button state 

int pushpressed = 0;

const int ledPin =  13;                       // buzzer and led pin

int ledState = LOW;

int Signal = 0;



int buzz = 13;                                      

int push1state, push2state, push3state, stopinState = 0;     // 

int push1Flag, push2Flag, Push3Flag = false;              // push button flags 

int push1pin = 9;

int push2pin = 8;

int push3pin = 7;

int stopPin = A0;

int screens = 0;              // screen to show

int maxScreen = 2;            // screen count

bool isScreenChanged = true;


long previousMillis = 0;           

long interval = 500;                   // buzzing interval

unsigned long currentMillis;


long previousMillisLCD = 0;    // for LCD screen update

long intervalLCD = 2000;          // Screen cycling interval

unsigned long currentMillisLCD;


//   Set Reminder Change Time

int buzz8amHH = 8;          //    HH - hours         ##Set these for reminder time in 24hr Format 

int buzz8amMM = 00;          //    MM - Minute

int buzz8amSS = 00;          //    SS - Seconds


int buzz2pmHH = 14;          //    HH - hours

int buzz2pmMM = 00;          //    MM - Minute

int buzz2pmSS = 00;          //    SS - Seconds


int buzz8pmHH = 20;          //    HH - hours

int buzz8pmMM = 00;          //    MM - Minute

int buzz8pmSS = 00;          //    SS - Seconds


 


int nowHr, nowMin, nowSec;                     // to show current mm,hh,ss


// All messeges

void gwsMessege(){               // print get well soon messege

    lcd.clear();

    lcd.setCursor(0, 0);

    lcd.print("Stay Healthy :)");     // Give some cheers

    lcd.setCursor(0, 1);

    lcd.print("Get Well Soon :)");    // wish 

}


void helpScreen() {              // function to display 1st screen in LCD

    lcd.clear();

    lcd.setCursor(0, 0);

    lcd.print("Press Buttons");

    lcd.setCursor(0, 1);

    lcd.print("for Reminder...!");

    

 }


void timeScreen() {              // function to display Date and time in LCD screen

  DateTime now = rtc.now();             // take rtc time and print in display

    lcd.clear();

    lcd.setCursor(0, 0);

    lcd.print("Time:");

    lcd.setCursor(6, 0);

    lcd.print(nowHr = now.hour(), DEC);

    lcd.print(":");

    lcd.print(nowMin = now.minute(), DEC);

    lcd.print(":");

    lcd.print(nowSec = now.second(), DEC);

    lcd.setCursor(0, 1);

    lcd.print("Date: ");

    lcd.print(now.day(), DEC);

    lcd.print("/");

    lcd.print(now.month(), DEC);

    lcd.print("/");

    lcd.print(now.year(), DEC);

}



void setup() {


  Serial.begin(9600);                      // start serial debugging

  if (! rtc.begin()) {                      // check if rtc is connected 

    Serial.println("Couldn't find RTC");

    while (1);

  }

  if (rtc.lostPower()) {

    Serial.println("RTC lost power, lets set the time!");

  }


//    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));            // uncomment this to set the current time and then comment in next upload when u set the time

  rtc.adjust(DateTime(2019, 1, 10, 7, 59, 30));                // manual time set


  lcd.begin(16, 2);

  lcd.clear();

  lcd.setCursor(0, 0);

  lcd.print("Welcome To");                                      // print a messege at startup

  lcd.setCursor(0, 1);

  lcd.print("Circuit Digest");

  delay(1000);

  pinMode(push1pin, INPUT_PULLUP);                                    // define push button pins type

  pinMode(push2pin, INPUT_PULLUP);

  pinMode(push3pin, INPUT_PULLUP);

  pinMode(stopPin, INPUT_PULLUP);

  pinMode(ledPin, OUTPUT);

  delay(200);

  Serial.println(EEPROM.read(addr));

  val2 = EEPROM.read(addr);                         // read previosuly saved value of push button to start from where it was left previously

  switch (val2) {

    case 1:

      Serial.println("Set for 1/day");

      push1state = 1;

      push2state = 0;

      push3state = 0;

      pushVal = 1;

      break;

    case 2:

      Serial.println("Set for 2/day");

      push1state = 0;

      push2state = 1;

      push3state = 0;

      pushVal = 2;


      break;

    case 3:

      Serial.println("Set for 3/day");

      push1state = 0;

      push2state = 0;

      push3state = 1;

      pushVal = 3;


      break;

  }



}


void loop() {

  push1();                                             //call to set once/day 

  push2();                                             //call to set twice/day 

  push3();                                             //call to set thrice/day 

    if (pushVal == 1) {                                // if push button 1 pressed then remind at 8am

    at8am();                                           //function to start uzzing at 8am 

  }

  else if (pushVal == 2) {                             // if push button 2 pressed then remind at 8am and 8pm

    at8am();                                            

    at8pm();                                           //function to start uzzing at 8mm

  }

  else if (pushVal == 3) {                             // if push button 3 pressed then remind at 8am and 8pm

    at8am();

    at2pm();                                            //function to start uzzing at 8mm

    at8pm();

  }

  

  currentMillisLCD = millis();                         // start millis for LCD screen switching at defined interval of time

  push1state = digitalRead(push1pin);                  // start reading all push button pins

  push2state = digitalRead(push2pin);

  push3state = digitalRead(push3pin);

  stopinState = digitalRead(stopPin);

  

  stopPins();                                            // call to stop buzzing

  changeScreen();                                        // screen cycle function



}


// push buttons

void push1() {                   // function to set reminder once/day 

  if (push1state == 1) {

    push1state = 0;

    push2state = 0;

    push3state = 0;

//    pushPressed = true;

    EEPROM.write(addr, 1);

    Serial.print("Push1 Written : "); Serial.println(EEPROM.read(addr));  // for debugging

    pushVal = 1;                                             //save the state of push button-1 

    lcd.clear();

    lcd.setCursor(0, 0);

    lcd.print("Reminder set ");

    lcd.setCursor(0, 1);

    lcd.print("for Once/day !");

    delay(1200);

    lcd.clear();

  }

}


void push2() {                      //function to set reminder twice/day

  if (push2state == 1) {

    push2state = 0;

    push1state = 0;

    push3state = 0;

//    pushPressed = true;

    EEPROM.write(addr, 2);

    Serial.print("Push2 Written : "); Serial.println(EEPROM.read(addr));

    pushVal = 2;

    lcd.clear();

    lcd.setCursor(0, 0);

    lcd.print("Reminder set ");

    lcd.setCursor(0, 1);

    lcd.print("for Twice/day !");

    delay(1200);

    lcd.clear();

  }

}


void push3() {                    //function to set reminder thrice/day

  if (push3state == 1) {

    push3state = 0;

    push1state = 0;

    push2state = 0;

//    pushPressed = true;

    EEPROM.write(addr, 3);

    Serial.print("Push3 Written : "); Serial.println(EEPROM.read(addr));

    pushVal = 3;

    lcd.clear();

    lcd.setCursor(0, 0);

    lcd.print("Reminder set ");

    lcd.setCursor(0, 1);

    lcd.print("for Thrice/day !");

    delay(1200);

    lcd.clear();

  }

}


void stopPins() {                   //function to stop buzzing when user pushes stop push button

  if (stopinState == 1) {

//    stopinState = 0;

//    pushPressed = true;

    pushpressed = 1;

    lcd.clear();

    lcd.setCursor(0, 0);

    lcd.print("Take Medicine  ");

    lcd.setCursor(0, 1);

    lcd.print("with Warm Water");

    delay(1200);

    lcd.clear();

  }

}



void startBuzz() {                    // function to start buzzing when time reaches to defined interval


//  if (pushPressed == false) {

 if (pushpressed == 0) {

    Serial.println("pushpressed is false in blink");

    unsigned long currentMillis = millis();

    if (currentMillis - previousMillis >= interval) {

      previousMillis = currentMillis;         // save the last time you blinked the LED

      Serial.println("Start Buzzing");

      if (ledState == LOW) {                  // if the LED is off turn it on and vice-versa:

        ledState = HIGH;

      }  else {

        ledState = LOW;

      }

      digitalWrite(ledPin, ledState);

    }

  }

  else if (pushpressed == 1) {

    Serial.println("pushpressed is true");

    ledState = LOW;

    digitalWrite(ledPin, ledState);

  }

}


void at8am() {                      // function to start buzzing at 8am

  DateTime now = rtc.now();

  if (int(now.hour()) >= buzz8amHH) {

    if (int(now.minute()) >= buzz8amMM) {

      if (int(now.second()) > buzz8amSS) {

        /////////////////////////////////////////////////////


        startBuzz();

        /////////////////////////////////////////////////////

      }

    }

  }

}

Credits

Techatronic

Techatronic

72 projects • 123 followers
Electronic engineer

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