Wearable emergency-response vest with heart-rate monitoring, automatic inflation, and on-screen alerts.
Role
Designer & builder
Course
Engineering & Design, NYU
Tools
Arduino · C++
Year
2022
Status
Completed
Highlights
Designed and built a wearable vest with integrated heart-rate sensing.
Implemented threshold-based detection that triggers automatic inflation and an on-screen alert.
Developed the circuit integrating a motor, heart-rate sensor, and display on Arduino, programmed in C++.
Overview
RAZI is a wearable emergency-response device developed for the Engineering and Design course at NYU. The vest
monitors the wearer's heart rate and responds automatically when readings exceed defined thresholds.
System operation
A heart-rate sensor continuously samples the wearer's pulse.
Arduino firmware (C++) compares each reading against defined thresholds.
When a threshold is exceeded, the firmware drives a motor to inflate the vest.
A display simultaneously presents an alert.
Fig 1 — System block diagram: heart-rate sensor → Arduino (C++ threshold logic) → inflation motor and alert display.
Implementation
I developed the circuit integrating the motor, heart-rate sensor, and display, and wrote the C++ firmware for sensor acquisition, threshold detection, and actuation.
Skills applied
Real-time biometric sensor acquisition and threshold-based control.
Motor control from a microcontroller.
Prototyping from concept to working wearable device.