Published February 20, 2026 © MIT

IoT Based Smart Medicine Reminder for Elderly Parents

An IoT-based smart medicine reminder that alerts parents on time and keeps family updated. 💊📡

BeginnerFull instructions provided8 hours16

IoT Based Smart Medicine Reminder for Elderly Parents

Things used in this project

Software apps and online services

Arduino IDE

Story

💊 Smart Medicine Reminder for Parents

IoT-Based Intelligent Medicine Alert & Monitoring System Using ESP32

🌍 1️⃣ Introduction

India me bahut se elderly parents daily medicines lete hain — BP, Sugar, Heart, Thyroid etc.

Problem hoti hai:❌ Medicine time bhool jana❌ Double dose lena❌ Family ko pata nahi chalta medicine li ya nahi❌ Emergency risk

Isliye maine design kiya:

💊 Smart Medicine Reminder for Parents

💊 Smart Medicine Reminder for Parents

Ek IoT-based reminder system jo timely alert deta hai aur family ko update bhejta hai.

🔥 2️⃣ Problem Statement

Traditional methods:

Alarm clock unreliable

Alarm clock unreliable

Human memory dependent

Human memory dependent

No remote monitoring

No remote monitoring

No confirmation system

No confirmation system

Elder care ke liye smarter system ki zarurat hai.

💡 3️⃣ Proposed Smart Solution

✔ RTC-based accurate timing✔ LCD medicine display✔ Buzzer alert✔ LED visual indicator✔ Button confirmation✔ MQTT cloud update✔ Family notification

🧰 4️⃣ Required Hardware

4.1️⃣ ESP32 (Main Controller)

Use:

WiFi connectivity

WiFi connectivity

Main logic control

Main logic control

MQTT communication

MQTT communication

4.2️⃣ RTC Module (DS3231)

Use:

Accurate real-time tracking

Accurate real-time tracking

Internet-independent clock

Internet-independent clock

4.3️⃣ 16x2 I2C LCD Display

Use:

Time display

Time display

Medicine reminder message

Medicine reminder message

4.4️⃣ Buzzer Module

Use:

Audible reminder

Audible reminder

4.5️⃣ Push Button

Use:

Medicine taken confirmation

Medicine taken confirmation

4.6️⃣ LED Indicator

Use:

Visual alert

Visual alert

🔌 5️⃣ Circuit Diagram

🔗 6️⃣ Complete Wiring Table

📌 RTC → ESP32

SDA → GPIO21SCL → GPIO22VCC → 3.3VGND → GND

📌 LCD → ESP32

SDA → GPIO21SCL → GPIO22VCC → 5VGND → GND

📌 Buzzer → GPIO4

📌 Button → GPIO5

📌 LED → GPIO18

💻 7️⃣ Software Used

1️⃣ Arduino IDE2️⃣ ESP32 Board Package3️⃣ RTClib4️⃣ LiquidCrystal_I2C5️⃣ PubSubClient (MQTT)

⚙️ 8️⃣ Working Logic

RTC current time read karta hai

RTC current time read karta hai

Scheduled medicine time check karta hai

Scheduled medicine time check karta hai

Time match hone par:

Buzzer ON

Buzzer ON

LED ON

LED ON

LCD par message

LCD par message
Time match hone par:Buzzer ONLED ONLCD par message

Parent button press karta hai

Alert stop

Alert stop

MQTT par “Taken” update

MQTT par “Taken” update
Parent button press karta haiAlert stopMQTT par “Taken” update

Family mobile dashboard update

Family mobile dashboard update

🚀 9️⃣ Key Features

✔ Accurate timing✔ Audible + visual alert✔ Confirmation system✔ IoT monitoring✔ Expandable for multiple medicines

🏠 1️⃣0️⃣ Applications

✔ Elderly parents✔ Hospitals✔ Care centers✔ Diabetic patients✔ Home healthcare

💼 1️⃣1️⃣ Business Opportunity

✔ IoT healthcare product✔ Elder care device✔ Subscription-based monitoring✔ Commercial home automation add-on

📞 1️⃣2️⃣ Project Support

Complete project, customization, PCB design, and deployment available.

📲 WhatsApp: +91 9336183481

🏁 1️⃣3️⃣ Conclusion

Smart Medicine Reminder ensures:

✔ Timely medication✔ Reduced health risk✔ Family peace of mind✔ Smart healthcare automation

💊 IoT Based Smart Medicine Reminder for Elderly Parents ✅ Complete ESP32 Code

#include <WiFi.h>
#include <Wire.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
#include <PubSubClient.h>

#define BUZZER 4
#define BUTTON 5
#define LED 18

const char* ssid = "YOUR_WIFI_NAME";
const char* password = "YOUR_WIFI_PASSWORD";
const char* mqtt_server = "broker.hivemq.com";

WiFiClient espClient;
PubSubClient client(espClient);

RTC_DS3231 rtc;
LiquidCrystal_I2C lcd(0x27, 16, 2);

int medHour = 8;      
int medMinute = 0;    
bool alertActive = false;

void setup_wifi() {
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
  }
}

void reconnect() {
  while (!client.connected()) {
    client.connect("MedicineReminderClient");
  }
}

void setup() {
  Serial.begin(115200);

  pinMode(BUZZER, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);
  pinMode(LED, OUTPUT);

  Wire.begin();
  rtc.begin();

  lcd.init();
  lcd.backlight();

  setup_wifi();
  client.setServer(mqtt_server, 1883);
}

void loop() {

  if (!client.connected()) {
    reconnect();
  }

  client.loop();

  DateTime now = rtc.now();

  lcd.setCursor(0,0);
  lcd.print("Time: ");
  lcd.print(now.hour());
  lcd.print(":");
  if(now.minute() < 10) lcd.print("0");
  lcd.print(now.minute());

  if(now.hour() == medHour && now.minute() == medMinute) {
    alertActive = true;
  }

  if(alertActive) {
    digitalWrite(BUZZER, HIGH);
    digitalWrite(LED, HIGH);

    lcd.setCursor(0,1);
    lcd.print("Take Medicine! ");

    if(digitalRead(BUTTON) == LOW) {
      alertActive = false;
      digitalWrite(BUZZER, LOW);
      digitalWrite(LED, LOW);
      client.publish("medicine/status","Taken");
      lcd.setCursor(0,1);
      lcd.print("Medicine Taken ");
      delay(1000);
    }
  }

  delay(1000);
}

Credits

Tech Gyan Set

18 projects • 6 followers

Thanks to Tech Gyan Set .

Embed the widget on your own site

IoT Based Smart Medicine Reminder for Elderly Parents

IoT Based Smart Medicine Reminder for Elderly Parents

Things used in this project

Software apps and online services

Story

💊 Smart Medicine Reminder for Parents

IoT-Based Intelligent Medicine Alert & Monitoring System Using ESP32

🌍 1️⃣ Introduction

🔥 2️⃣ Problem Statement

💡 3️⃣ Proposed Smart Solution

🧰 4️⃣ Required Hardware

4.1️⃣ ESP32 (Main Controller)

4.2️⃣ RTC Module (DS3231)

4.3️⃣ 16x2 I2C LCD Display

4.4️⃣ Buzzer Module

4.5️⃣ Push Button

4.6️⃣ LED Indicator

🔌 5️⃣ Circuit Diagram

🔗 6️⃣ Complete Wiring Table

📌 RTC → ESP32

📌 LCD → ESP32

📌 Buzzer → GPIO4

📌 Button → GPIO5

📌 LED → GPIO18

💻 7️⃣ Software Used

⚙️ 8️⃣ Working Logic

🚀 9️⃣ Key Features

🏠 1️⃣0️⃣ Applications

💼 1️⃣1️⃣ Business Opportunity

📞 1️⃣2️⃣ Project Support

🏁 1️⃣3️⃣ Conclusion

Code

💊 IoT Based Smart Medicine Reminder for Elderly Parents ✅ Complete ESP32 Code

Credits

Tech Gyan Set

Comments

Related channels and tags