🧪 Medical Technology Health Monitoring Simulation

This simulation demonstrates the use of medical technology for continuous patient health monitoring: a photoplethysmography (PPG) sensor on the wrist, the same optical principle used by wearable fitness bands and clinical pulse oximeters. Red and infrared LEDs shine through the skin and a photodiode measures how much light returns; because arterial blood volume swells with every heartbeat, that returning light oscillates in sync with the pulse. Set the patient's true heart rate, blood-oxygen saturation, motion artifact and ambient light noise, and watch the sensor's raw red/IR waveform, then see the monitor independently re-derive a live heart-rate and SpO2 reading from that noisy optical signal, along with a signal-quality index that reflects how much you can trust it.