Jack Lin ¹ and Soroush Mirzaee ², ¹ USA, ² California State Polytechnic University, USA

PulsePath addresses critical safety challenges faced by hearing impaired individuals, who often lack access to auditory cues essential for safe navigation in public settings[1]. PulsePath, a wearable device that features a navigation system and a blind spot detection, is capable of delivering real-time vibrational feedback to inform users of their surroundings and alert potential danger and obstacles. PulsePath pairs with a mobile app developed using Flutter and connects via Bluetooth Low Energy(BLE) to allow users to customize settings and monitor device status [2]. Key components include a time-of-flight sensor for object detection, ESP32 microcontroller for data processing, and haptic motors for tactile feedback output. Major challenges such as sensor placement, excessive wiring, BLE latency, and user experience were addressed through better design and use of more efficient microcontrollers such as ESP 32-S3. To improve user experience, a mobile app is developed and implemented by Flutter. Experimental results indicate enhanced battery efficiency and a 95% accuracy rate with reduced latency from ESP 32-S3 in comparison with RP 2040. Unlike visual and auditory aids, PulsePath allows discreet and intuitive navigation and support, offering an inclusive solution to enhance spatial awareness among individuals with hearing impairments.

Wearable Assistive Tech, Haptic Feedback, Hearing Impairment, Real-Time Navigation