Design Concept#

Curent concept based on 3D magnetic sensors#

_images/Concept_V2.png

  • The heart builds the pretty need XIAO ESP32S with lots of processing power, BLE, WLAN interfaces as well as a modern USB-C connection. It includes an battery management part avoiding extra PCBs.

  • The detection principle of the 6D motion will be done with 3 3D magnetic sensors measuring the displacement of the neodyn magnets mounted at the knob.

  • Adding an IMU in the knobn might increase the stability (using a Kalman filter to fuse the signals) and could be used to wake up the device when it is in sleep mode (which would be mandatory for battery operation).

Initial design concept (based on hall sensors)#

_images/Concept_V1.png

  • The heart builds the pretty need XIAO ESP32S with lots of processing power, BLE, WLAN interfaces as well as a modern USB-C connection. It includes an battery management part avoiding extra PCBs.

  • The detection principle of the 6D motion will be done with 6 linear HALL sensors measuring the displacement of the neodyn magnets mounted at the knob.

  • Adding an IMU in the knobn might increase the stability (using a Kalman filter to fuse the signals) and could be used to wake up the device when it is in sleep mode (which would be mandatory for battery operation).

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