Our reconstruction of the card10 consists of two boards: The Fundamental Board and the Harmonic Board. They serve different purposes and travelers interact mostly with the Harmonic Board.
Our reconstruction of the card10 consists of three things:
- The Fundamental Board
- Hosts most sensors, the CPU, the USB-C connection, the power management and connections to the wristband
- The Harmonic Board
- Hosts the user interface, a few sensors, lots of (RGB) LEDs and the battery
- The wristband
- Secures the card10 and provides space for extensions
The two boards are connected via a boad to board connector and then screwed together with M2 screws. The wristband is attached to back of the Fundamental Board with two clamps.