Smart-Dose

Overview

Smart-Dose is a microcontroller-based solution designed to assist patients with regular injection schedules. It combines real-time time tracking, injection site rotation, OLED display feedback, EEPROM-based memory, and buzzer alerts to provide a reliable and user-friendly reminder system.

This project is especially useful for individuals who require frequent subcutaneous or intramuscular injections, helping avoid repeated usage of the same injection site and ensuring timely administration.

Features

• Injection Site Management: Rotates through 6 predefined injection sites, avoiding the last two used locations to prevent overuse.
• Time Tracking: Logs the exact time of the most recent injection and calculates the next due time (after 8 hours).
• OLED Display: Real-time feedback with site and time display using a 128x32 OLED screen.
• EEPROM Storage: Persistent memory storage ensures site and time history is not lost on power reset.
• Wi-Fi Time Sync: Fetches real-time data from NTP servers for accuracy.
• Buzzer Alerts: Emits periodic alerts to notify users when it's time for the next dose.
• Button Controls: Simple push-button interface to log time, view previous entries, and calculate next schedule.

Respository Contents

• Smart-Dose/
  ├── InjectionLocationTracker/
  │   └── InjectionLocationTracker.ino         # Code for site tracking and display
  ├── TimeTrackerWithBuzzer/
  │   └── TimeTrackerWithBuzzer.ino            # Code for time logging, buzzer, and scheduling
  ├── images/                                  # Folder to store demo images or circuit diagrams (optional)
  └── README.md
  
  

Hardware Requirements

• NodeMCU (ESP8266) or compatible microcontroller
• 128x32 OLED display (SSD1306-based)
• 2x Push buttons (for time and site tracking)
• Active Buzzer module
• Breadboard and jumper wires
• Optional: Resistors for pull-up/pull-down configuration

Software Requirements

• Arduino IDE
• ESP8266 Board Package
• Required libraries:

  Adafruit SSD1306
  Adafruit GFX
  EEPROM
  ESP8266WiFi
  time
  

Install missing libraries using Arduino Library Manager.

Getting Started

1. Clone the Repository

   git clone https://github.com/urugondavishnu/Smart-Dose.git
   cd Smart-Dose

2. Configure Wi-Fi (for TimeTrackerWithBuzzer) Open TimeTrackerWithBuzzer.ino and edit these lines:

   const char* ssid     = "your_SSID";
   const char* password = "your_PASSWORD";

3. Upload to NodeMCU
   • Open the .ino file in Arduino IDE
   • Select board: Tools → Board → NodeMCU 1.0 (ESP-12E Module)
   • Select the correct COM port
   • Click Upload

Usage

• TimeTrackerWithBuzzer

  • Press the Current Time button once to display current time.
  • Press it twice quickly to log the current time (stored in EEPROM).
  • Press the Previous Time button once to display the last saved time.
  • Press it twice quickly to calculate and display the next dose time (+8 hours).
  • A buzzer rings every 2 hours to remind the user.

• InjectionLocationTracker

  • Displays the last injection site on startup.
  • Press button to select next site; ensures no repetition of last two.
  • Sites: Left Arm, Right Arm, Left Leg, Right Leg, Abdomen, Hip

Methodology

• Location Rotation Logic:

  • Stored in EEPROM as numeric codes (0–5) for each site.
  • Next site is chosen randomly, excluding last two.

• Time Logic:

  • Synchronized from NTP.
  • Stored in HH:MM format.
  • Next dose calculated by adding 8 hours.
  • Buzzer sounds every 2 hours as a general reminder.

Results

• Successfully rotates between injection sites avoiding overuse.
• Displays all information clearly on OLED.
• Recovers from power failures by reading last site and time from EEPROM.
• Tamper-proof with button-based interactions.
• Wi-Fi-based accurate time handling without RTC.

To Do / Future Improvements

• Add web interface for logs and settings.
• Integrate battery-powered setup.
• Add mobile notification integration using Blynk or MQTT.

Contributing

Contributions are welcome! Please fork the repository and create a pull request with your enhancements or bug fixes.

Contact

For questions or feedback, please reach out to urugondavishnu.