Photoplethysmography(PPG)

CardboardHRV: Bridging Virtual Reality and Biofeedback with a Cost-Effective Heart Rate Variability System

We introduce CardboardHRV, an affordable and effective heart rate variability (HRV) biofeedback system leveraging Cardboard VR. Designed for easy access to HRV biofeedback without sacrificing therapeutic value, we adapted the Google Cardboard VR …