Heart Attack Detection Band

Early warning signs of a cardiac event are often present in physiological signals minutes before the event itself — but usually only a clinical setting is equipped to catch them.

A low-cost wearable that fuses multiple signals rather than relying on one sensor gives a more honest picture of what's actually happening physiologically, and was a chance to work across the full hardware-to-software stack alone.

• 01An ESP32-based wearable combining a MAX30102 heart-rate/SpO2 sensor and an AD8232 single-lead ECG sensor to capture real-time cardiac signals.
• 02A rule-based detection layer that fuses heart rate, blood oxygen, and ECG waveform data, aimed at surfacing early-warning indicators 15–30 minutes ahead of a potential cardiac event.
• 03Real-time alerts through an onboard buzzer and a companion Bluetooth-connected mobile app.

• Multi-sensor fusion (HR, SpO2, ECG waveform)
• Rule-based early-warning detection layer
• Onboard buzzer alerts
• Companion Bluetooth mobile app

Working solo prototype.