Smart Fitness Tracker

Smart Fitness Tracker

Compact Wearable Health Monitoring Solution

Silentronics designed and developed a Bluetooth-enabled smart fitness tracker for continuous health monitoring and activity tracking. The device combines advanced sensing technologies, low-power wireless connectivity, and an intuitive mobile application to deliver real-time health insights with extended battery life.

☞ Hardware Development 

The wearable hardware was optimized for compact size, low power consumption, and reliable performance.

Core Components

• Nordic nRF52832 BLE MCU
• 0.96″ OLED Display
• Heart Rate & SpO₂ Sensor
• 3-Axis Accelerometer
• 105mAh Li-Po Battery
• Magnetic Pogo-Pin Charging
• IP67 Enclosure Architecture

☞ Firmware Development

Custom embedded firmware was developed to enable efficient sensing and seamless connectivity.

Firmware Features

• Sensor Data Processing
• Heart Rate & SpO₂ Monitoring
• Activity & Sleep Tracking
• BLE 5.0 Communication
• OLED Display Control
• Battery Management
• Low-Power Optimization
• Smart Notification Support

☞ Mobile Application

A companion mobile application provides users with meaningful health insights and activity trends.

Mobile Features

• Real-Time Health Dashboard
• Heart Rate & SpO₂ Trends
• Sleep Analysis
• Step & Calorie Tracking
• Goal Tracking & Reminders
• Secure BLE Synchronization

Compatibility

• Android
• iOS

☞ Challenges Solved

• Integrated multiple sensors within a compact enclosure.
• Optimized power consumption for extended battery life.
• Ensured stable BLE connectivity.
• Balanced performance, comfort, and manufacturability.

☞ Project Highlights

✓ End-to-End Wearable Product Development
✓ Embedded Hardware & Firmware Design
✓ BLE Mobile Connectivity
✓ Health Monitoring Integration
✓ Prototype Development & Validation
✓ Manufacturing-Ready Design

☞ Tools & Technologies

• Nordic nRF52 • BLE 5.0 • Embedded C • OLED Interface
• Sensor Integration • PCB Design • Android & iOS
• Low-Power Optimization

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