Measurement Site →

Sensor Acquisition Module

NIR Emitter + Photodiode

MAX3010/3010 PPG Sensor

MPU6050 (Accelerometer + Gyroscope)

DHT11 Temperature and Humidity Sensor →

ESP32 Central Processing Unit (CPU)

Signal Conditioning

Digital Filtering

Feature Extraction

OLED/LCD →

User Interface Module

Rechargeable Li-Po Battery

Battery management system

Power Management