# wait for remaining time to next frame show
tickFPS = Clock.tick(fps)
# update window title
pygame.display.set_caption("Press Esc to quit. FPS: %.2f PACKETS: %d" %
(Clock.get_fps(), pulled))
# erase screen to black
screen.fill((255,255,255))
# plot the signals
gr_height = 600 // 14
gr_width = 750
# get a handle to the buffer
buf = eeg.buffer()
for s in range(14):
chan_name = counter_to_sensor_id[s]
zero_ax_y = gr_height * s + gr_height // 2
# draw the zero axis
pygame.draw.line(screen, (0, 0, 255), (50, zero_ax_y), (800, zero_ax_y))
# draw the signal onto the screen
sig = buf[:,s]
zero_lev = np.mean(sig)
sig_amp = max(np.max(sig) - zero_lev, zero_lev - np.min(sig))
if sig_amp == 0:
sig_amp = 1.0
from emotiv_device import EmotivDevice
from emotiv_data_packet import EmotivDataPacket
from signal_buffer import SignalBuffer
if __name__ == '__main__':
print("Setting up device ...")
dev = EmotivDevice('SN20120229000254')
print("Starting reader ...")
dev.start_reader()
rb = SignalBuffer(64, 14)
for rbp in range(10):
pp = rb.pull_packets(dev)
print("Pulled %d packets." % pp)
print rb.buffer().shape
time.sleep(0.2)
print("Stopping reader ...")
dev.stop_reader()
print("Done.")