VisionGuard Smart Stick is an advanced assistive device designed to help visually impaired and dual-disabled individuals navigate safely.
It detects obstacles and ground-level hazards like holes, provides voice and vibration alerts, and includes an emergency SOS system with GPS tracking.
- Obstacle detection using ultrasonic sensors
- Hole/step detection for safer walking
- Voice alerts using speaker module
- Buzzer/vibration feedback system
- Touch-based alert support (for deaf-blind users)
- GPS location tracking
- SOS emergency message via GSM
- Arduino (Embedded C)
- Ultrasonic Sensors Integration
- GPS & GSM Communication
- DFPlayer Mini (Audio Module)
- Arduino Board
- Ultrasonic Sensors (3x)
- DFPlayer Mini + Speaker
- GPS Module
- GSM Module
- Buzzer / Vibration Motor
- Touch Sensor / Rubber Switch
- Battery / Power Supply
- Jumper Wires
- Front sensors detect obstacles like walls or objects
- Bottom sensor detects holes or steps
- Voice alerts notify the user using speaker
- Buzzer/vibration gives instant feedback
- Touch sensor allows manual alert for dual-disabled users
- GPS fetches location data
- GSM sends emergency SOS message with coordinates
- Connect all sensors and modules properly
- Insert SD card with voice files into DFPlayer
- Upload the Arduino code (
main.ino) - Configure phone number in GSM module
- Power ON the system
- Test obstacle, hole, and SOS functions
- Detects obstacles and alerts user
- Identifies holes/steps and gives warning
- Voice alerts for better guidance
- SOS message sent with live GPS location
- Supports safe navigation for visually impaired users
- Assistive device for visually impaired people
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- Emergency safety device
- Social impact IoT solution