Development of a Multi-User Simple BCI System Using Microcontrollers for Entertainment Applications Such as an EEG VR Live Concert

This study develops a low-cost, multi-user BCI system using microcontrollers and EEG devices for entertainment applications such as an EEG VR live concert. It enables real-time data transmission via Bluetooth and Wi-Fi. Experiments showed that movement and muscle activity caused signal interference, while concentration effects varied among individuals. The results confirm passive BCI feasibility in groups but highlight stability challenges for real-time active BCI.