@@ -12,12 +12,12 @@ The Fundamental Board is located just above the wristband; above it come the bat
Several interfaces for [interhacktions](/en/interhacktions) are included on the Fundamental Board. The travelers can be alerted to an event using the vibration motor. Screws through the ECG contacts are used both for attaching the wristband and for making contact with your skin for ECG measurements. Besides its use for interhacktions, the [USB-C](/en/usbc) connector is also used for charging the battery and for updating the firmware.
A PDF version of the Fundamental Board is available [here](https://git.card10.badge.events.ccc.de/card10/hardware/blob/master/boards/Fundamental-Board/Fundamental-Board.pdf)
A PDF version of the schematic of the Fundamental Board is available [here](https://git.card10.badge.events.ccc.de/card10/hardware/blob/master/boards/Fundamental-Board/Fundamental-Board.pdf)
## Harmonic Board
The harmonic board sits on top of the Fundamental Board. It contains most of the user interface and a few sensors.
The Harmonic Board sits on top of the Fundamental Board. It contains most of the user interface and a few sensors.
A PDF version of the Hundamental Board is available [here](https://git.card10.badge.events.ccc.de/card10/hardware/blob/master/boards/Harmonic-Board/Harmonic-Board.pdf)
A PDF version of the schematic of the Harmonic Board is available [here](https://git.card10.badge.events.ccc.de/card10/hardware/blob/master/boards/Harmonic-Board/Harmonic-Board.pdf)
