Tetris game with EMG control via SpikerBox for Bioengineering Methods Laboratory Class at University of Pittsburgh
Myoelectric Tetris requires the Python hidapi library. The easiest way to get this library if you have Python already installed is through pip.
pip install hidapi
The emg_buffer.py script uses the hid library to read and buffer data from MuscleSpikerBoxPro. emg_buffer.py is an almost-complete Python translation of Backyard Brain's HIDUsbManager class.
Tetris for this game is implemented in MATLAB, primarily via matlabtetris. However, the keyboard controls are replaced with an EMG signal classifier in emg_control.m. The time window of EMG signal to use for classification is set via set_window_size.m. EMG data is buffered for the window size set in milliseconds. This raw EMG signal is then passed to emg_control.m where signal is classified as moving a Tetris piece to the left or right, or turning the Tetris piece clockwise. For most implementations of this game, EMG electrodres are placed on a flexor-extensor pair on the forearm. Wrist flexion corresponds to moving the Tetris piece to the left, wrist extension moves the Tetris piece to the right, and co-contraction of the flexor and extensor rotates the piece in a clockwise direction. All other keyboard controls for the game (moving down, pausing) remain the same.