Sarathi - Smart Wheelchair System

🤖

Smart Wheelchair Control

Bluetooth-enabled navigation via Flutter app
Manual directional control (F, B, L, R, S, U)
Automated room-to-room navigation
Predefined 2-letter route codes (LS = Living → Study)
Safe turning with adaptive speed control
Customizable delay-based path timing

📱

Dual Mobile Interface

Patient Dashboard: Joystick control & SOS alerts
Guardian Dashboard: Real-time monitoring & chat
Medicine reminder system with notifications
Editable profile management
Emergency communication system
Cross-platform Flutter implementation

☁️

Cloud-Powered Backend

Firebase Firestore for data persistence
Real-time chat messaging system
Patient & guardian profile synchronization
Medicine reminder cloud storage
Bluetooth serial communication protocol
Local notification with timezone support

Quick Setup Guide

Hardware Configuration

Flash ESP32 with the provided Arduino code
Connect motor driver to designated GPIO pins
Configure room-to-room route mappings
Power system and establish Bluetooth pairing

// Example room mapping in ESP32 code

if (command == "LS") { // Living to Study

  moveForward(3000);

  turnRight(1000);

  moveForward(2000);

}

Flutter App Installation

# Clone repository

git clone https://github.com/your-username/Sarathi-smart-wheelchair.git

cd Sarathi-smart-wheelchair

# Install dependencies

flutter pub get

# Run the application

flutter run

Firebase Setup

Create new Firebase project in console
Add Android/iOS apps to project
Download and replace configuration files:

google-services.json (Android)
GoogleService-Info.plist (iOS)

Enable Firestore Database and Authentication

How can you use Sarathi?

Manual Control

Use intuitive arrow buttons for direct wheelchair navigation with commands F (Forward), B (Back), L (Left), R (Right), S (Stop), U (U-turn)

Smart Navigation

Select predefined routes like 'LB' (Living → Bedroom) for automated room-to-room movement with obstacle-aware pathfinding

Emergency System

One-tap SOS button instantly alerts guardians with location and status information for immediate assistance

Real-time Chat

Seamless communication between patients and guardians through integrated messaging with offline message queue

Medicine Management

Automated reminder system with customizable schedules and guardian oversight for medication compliance

Profile Sync

Cloud-synchronized patient profiles accessible to authorized guardians with edit permissions and activity logs

Project Architecture

Sarathi-smart-wheelchair/
├── hardware/
│ └── esp32_wheelchair.ino    # ESP32 motor control & Bluetooth
├── app/
│ ├── lib/
│ │ ├── screens/                # Patient & Guardian UI
│ │ ├── services/               # Firebase & Bluetooth APIs
│ │ └── models/                 # Data structures
│ └── pubspec.yaml              # Dependencies
├── docs/
│ ├── report/                   # Technical documentation
│ └── user_manual.pdf          # Usage guidelines
└── README.md

♿ Sarathi