ESP32 SMARTWATCH
ESP32 wearable with real-time heart rate, SpO₂, step tracking, and an interactive OLED interface.

The Problem
Sensor noise made SpO₂ readings inconsistent.
IMU drift reduced pedometer accuracy.
Button debounce caused input latency.
OLED refresh bottlenecks slowed the UI.
The Solution
Applied signal filtering and averaging to stabilize biometric readings.
Calibrated the IMU baseline to improve motion detection.
Refined debounce logic for responsive input.
Removed unnecessary screen redraws to fix UI lag.


