LAVAR: Lunar Autonomous Void Access Rover

The engineering approach focused on developing a modular system that integrates sensing, processing, and feedback into a compact and ergonomic attachment. The device uses an ultrasonic sensor to detect obstacles beyond the reach of a standard cane and provides real-time alerts through haptic (vibration-based) and optional audio feedback. An Arduino Pro Mini microcontroller serves as the central processing unit, interpreting sensor data and activating feedback mechanisms. Key engineering methods included system-level design, electrical circuit integration, computer-aided design (CAD) modeling, and power analysis. Components were selected based on reliability, cost, weight, and manufacturability to ensure that the final design remains accessible and practical for real-world use.