Mind Flex is toy which allow users to control elements thing in game based on brain-computer interface. It contains NeuroSky TGAM1 chipset which is a single channel EEG with support for UART/Serial communication. By default chipset returns information about attention/meditation and EEG power bands values. It is possible to receive a raw EEG data but it requires a change in configuration on TGAM1 board. There are two pads BR0 and BR1 which are responsible for configuration of output baud rate and data content. I used a default configuration with 9600 baud with normal output mode (without raw data).
In my modification I have added a HC05 Bluetooth module to output of TGAM1 board. Module is powered from main board via main switch.
After pairing in Linux system the HC05 module is available as following serial device: /dev/rfcomm0.
To receive data I have used synapse-python application which implements ThinkGear protocol and allows to visualize the data. Application is available here with installation manual: synapse-python
Here is example output from these application:
In attachment there are documentations for TGAM1 board and protocol specification. At below page there is more detailed explanation of similar modification with usage of Arduino: brain-hack