Health Monitoring Wearable: DIY Fitness Band

With the rise of health-conscious consumers, wearable health devices are booming. You can build your own simplified version for a fraction of the cost!

What Can You Monitor?

| Sensor | Parameter | | :--- | :--- | | Pulse Sensor (KY-039) | Heart Rate (BPM) | | MAX30100 / MAX30102 | Heart Rate + SpO2 (Blood Oxygen) | | LM35 / DS18B20 | Body Temperature | | MPU6050 | Steps / Activity (Accelerometer) |

System Architecture

1. Data Collection: Sensors placed on wrist/finger measure vitals.
2. Processing: Arduino Nano (or ESP32 for wireless) reads and processes data.
3. Display: Small OLED (0.96") shows readings on the wrist.
4. Cloud Sync: ESP32 can upload data to ThingSpeak/Firebase for tracking trends.

Challenges

• Noise Filtering: Pulse sensors are sensitive to movement. Use software filters (moving average).
• Power Management: Use a LiPo battery with a TP4056 charging module.

Applications

• Personal fitness tracking.
• Remote patient monitoring for elderly.
• Research projects on biometric data.

Explore Related Projects

• Temperature and Humidity Monitoring