Key result
Low-cost heartbeat monitor matches commercial pulse oximeter accuracy with ~1% error rate.
Why the study?
A simple and robust heartbeat monitoring system is needed to provide real-time measurement and detect pathological conditions at low cost.
Design
Prototype development using microcontroller and sensors
Authors
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Prototype accuracy supports low-cost monitoring feasibility; leaves open prospective clinical validation before any practice consideration.
Effect estimate: 0.69% error rate
A prototype low-cost heartbeat monitoring system using a vibration sensor and smartphone demonstrated high accuracy with an error rate of 0.69% compared to a commercial pulse oximeter.
Reddy et al. (2020) studied Heart rate monitoring. Low-cost heartbeat monitoring system (DFR0052 sensor, ATmega 16, Android smartphone) vs. Commercial pulse oximeter was evaluated on Heart rate measurement accuracy (error rate) (0.69% error rate). The proposed low-cost heartbeat monitoring system demonstrated a frequent error level of nearly 0.69% with a maximum difference of one beat per minute compared to a commercial pulse oximeter.
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