Fig. 3
Mobile application overview. The App functioned as the GUI for the subject to interact with the BCI software running on the computer. a The home screen displayed the currently selected input and output devices in use. The blue dot in the upper-right marked the system’s status. b An input device selection screen, allowing the subject to select from more devices. c A settings page that allowed the subject to adjust parameters (such as decoder threshold, end effector motor speed, etc.) for a given device. These settings were defined by the software Class’s Application Programming Interface (API) on the computer’s end and were delivered over Bluetooth for dynamic display. d A data collection session that presented prompts to the subject either for assessing accuracy or applying calibration to the device’s decoder