Project Airframe is an open-source smartwatch designed to give developers and hobbyists full access to both hardware and software. With state-of-the-art sensors, wireless charging, GPS, and more, it’s a versatile tool for exploring wearable technology. Below, you’ll find everything you need to get started, from hardware specifications to software instructions.
- Dual Processor Options: ESP32-S3 (240MHz dual-core) and NXP i.MX 8 Quad.
- Sensors: ECG, Pulse Oximeter, Temperature, IMU (Inertial Measurement Unit), Compass, and more.
- Wireless Charging: 5W fast wireless charging.
- GPS and GNSS: Built-in GPS for location tracking.
- Full NFC: NFC pay, NFC tags, and peer-to-peer communication.
- Health Monitoring: Real-time heart rate, oxygen levels (SpO2), ECG data, and more.
- Fitness Tracking: Tracks steps, calories, sleep, and daily activity.
- Custom Watch Faces: Multiple customizable watch faces.
- Water Resistant: Built to handle daily wear and weather conditions.
The Airframe Smartwatch integrates sophisticated hardware to support a variety of health, fitness, and location tracking features.
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Microcontroller: ESP32-S3 Dual Core (or NXP i.MX 8 Quad)
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Memory:
- 4MB RAM, 8MB Flash (for ESP32)
- 8GB DDR4 RAM (for i.MX 8)
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Display: 240x240 px touch display.
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Power Management: 5W wireless charging, battery fuel gauge, and power management IC.
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Sensors:
- Pulse Oximeter
- ECG 3 Lead Sensor
- Temperature Sensor
- Pressure Sensor
- Inertial Measurement Unit (IMU)
- Compass
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Connectivity:
- BLE 5.0
- NFC Reader/Writer
- GPS/GNSS (GPS, GLONASS, Galileo)
- Wi-Fi 4.2, NFC Tag
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Airframe Smartwatch Prototype
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Smartwatch Components & PCB Designs
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Smartwatch in Assembled Form - Front & Back
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Smartwatch Puck
The Airframe smartwatch is powered by a custom software stack, supporting both real-time data processing on the watch and communication with a companion app.
- BLE Communication: Enables the watch to communicate via Bluetooth Low Energy (BLE) with smartphones or computers.
- Flutter App: Provides a seamless interface for Android and iOS users.
- Real-Time Health Monitoring: Continuously tracks and records heart rate, SpO2, ECG data, and more.
- Fitness and Activity Monitoring: Step tracking, calorie burn, sleep data, and activity summaries.
- Custom Watch Faces: Supports multiple watch faces, showing time, health stats, and weather data.
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Airframe Mobile App - Dashboard View
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Frame-OS
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The electronic components of Airframe are carefully designed to maximize the device’s functionality while maintaining low power consumption and high performance.
The PCB includes:
- ESP32-S3 Processor or NXP i.MX 8 Quad variant.
- Sensor integration for health tracking, including ECG, SpO2, IMU, and more.
- Power Management ICs for efficient battery handling and 5W fast wireless charging.
- PCB
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Clone the Repository
git clone https://github.com/your-repository/airframe-smartwatch.git cd airframe-smartwatch -
Install Prerequisites
Follow the instructions to install dependencies for ESP32 or NXP i.MX 8. -
Flash the Firmware
Flash the microcontroller using the ESP32 toolchain or NXP i.MX tools. -
Mobile App Setup
The companion app is developed using Flutter:cd mobile_app flutter run
Once the firmware is flashed and the app is running, you can:
- Pair with BLE: Connect the watch with your smartphone using Bluetooth.
- Monitor Health Data: Track real-time health data like ECG, SpO2, steps, and more.
- Customize Watch Faces: Change and customize watch faces using the app.
Project Airframe is open-source, and contributions are welcome! To get started:
- Fork the repository.
- Create a new branch for your feature/bugfix.
- Make your changes and test thoroughly.
- Submit a pull request.
Project Airframe is licensed under the MIT License. See LICENSE for more details.