Details on why we chose our current sensor channels are outlined in our 2021 Interactive, Mobile, Wearable, and Ubiquitous Technologies (IMWUT) journal paper (link will be added once paper is public).

Our system includes the following:

• Primary, Dual-core, Multi-Protocol Wireless STM32WB Microcontroller (supports Zigbee, Bluetooth LE and Mesh, and Thread)
• Secondary M4 MCU Connected to Primary MCU via I2C
• Eye Blink Sensor
• Nose and Temple Infrared Temperature Sensors
• 9-axis IMU with Built-In Activity Classifier and Quaternion Compute Engine
• 3D Localization via External VIVE Lighthouses
• Two Capacitive Touch Points
• 6 programmable RGB LEDs
  • 2 Front-Facing
  • 2 Eye-Facing
  • 2 for Illumination of Top Fiber Optics
• Various Breakout Pads to Connect Additional Sensing and Compute Modalities
• Rechargeable Batteries (300mAh in our design but can be tailored to the application)
• Light Weight (44g if using Nylon PA12 plastics and two 150mAh LiPo batteries)
• FULLY OPEN SOURCE