def main ():
parser = argparse.ArgumentParser ()
parser.add_argument ('--ip-address', type = str, help = 'ip address', required = True)
parser.add_argument ('--ip-port', type = int, help = 'ip port', required = True)
args = parser.parse_args ()
BoardShim.enable_dev_board_logger ()
params = BrainFlowInputParams ()
params.ip_address = args.ip_address;
params.ip_port = args.ip_port;
board = BoardShim (BoardIds.GANGLION_WIFI_BOARD.value, params)
board.prepare_session ()
# 5 seconds of resistance data
board.config_board ('z')
board.start_stream (45000, 'file://raw_data_resistance.csv:w')
time.sleep (5)
data = board.get_board_data ()
board.stop_stream ()
# now get eeg data
board.config_board ('Z')
board.start_stream (45000, 'file://raw_data_eeg.csv:w')
time.sleep (5)
data = board.get_board_data ()
board.stop_stream ()
board.release_session ()
print (data)
def main():
BoardShim.enable_dev_board_logger()
parser = argparse.ArgumentParser()
parser.add_argument('--serial-port',
type=str,
help='serial port',
required=True)
args = parser.parse_args()
params = BrainFlowInputParams()
params.serial_port = args.serial_port
board = BoardShim(BoardIds.CYTON_BOARD, params)
try:
board.prepare_session()
resp = board.config_board('?')
print(resp)
# check that there is a response if streaming is off
if not resp:
raise ValueError('resp is None')
board.start_stream()
time.sleep(5)
resp = board.config_board('?')
print(resp)
# check that there is no response if streaming is on
if resp:
raise ValueError('resp is not None')
finally:
if board.is_prepared():
board.release_session()
class CytonBoard(object):
def __init__(self, file):
self.params = BrainFlowInputParams()
#self.params.serial_port = serial_port
self.params.file = file
self.params.other_info = str(BoardIds.CYTON_BOARD.value)
self.board = BoardShim(BoardIds.PLAYBACK_FILE_BOARD.value, self.params)
def start_stream(self):
self.board.prepare_session()
#self.board.config_board ('loopback_true')
self.board.config_board('old_timestamps')
self.board.start_stream()
def stop_stream(self):
self.board.stop_stream()
self.board.release_session()
def poll(self, sample_num):
try:
while self.board.get_board_data_count() < sample_num:
time.sleep(0.02)
except Exception as e:
raise (e)
#print(self.board.get_board_data_count())
board_data = self.board.get_board_data()
#df = board_2_df(np.transpose(board_data))
return board_data
def sampling_frequency(self):
sampling_freq = self.board.get_sampling_rate(
BoardIds.CYTON_BOARD.value)
return sampling_freq
def main ():
parser = argparse.ArgumentParser ()
# use docs to check which parameters are required for specific board, e.g. for Cyton - set serial port
parser.add_argument ('--ip-port', type = int, help = 'ip port', required = False, default = 0)
parser.add_argument ('--ip-protocol', type = int, help = 'ip protocol, check IpProtocolType enum', required = False, default = 0)
parser.add_argument ('--ip-address', type = str, help = 'ip address', required = False, default = '')
parser.add_argument ('--serial-port', type = str, help = 'serial port', required = False, default = '')
parser.add_argument ('--mac-address', type = str, help = 'mac address', required = False, default = '')
parser.add_argument ('--other-info', type = str, help = 'other info', required = False, default = '')
parser.add_argument ('--streamer-params', type = str, help = 'other info', required = False, default = '')
parser.add_argument ('--board-id', type = int, help = 'board id, check docs to get a list of supported boards', required = True)
parser.add_argument ('--log', action = 'store_true')
args = parser.parse_args ()
params = BrainFlowInputParams ()
params.ip_port = args.ip_port
params.serial_port = args.serial_port
params.mac_address = args.mac_address
params.other_info = args.other_info
params.ip_address = args.ip_address
params.ip_protocol = args.ip_protocol
if (args.log):
BoardShim.enable_dev_board_logger ()
else:
BoardShim.disable_board_logger ()
board = BoardShim (args.board_id, params)
board.prepare_session ()
board.start_stream ()
print('Session Started')
for x in range(2):
time.sleep (5)
board.config_board ('/2') # enable analog mode only for Cyton Based Boards!
time.sleep (5)
data = board.get_board_data ()
board.stop_stream ()
board.release_session ()
"""
data[BoardShim.get_other_channels(args.board_id)[0]] contains cyton end byte
data[BoardShim.get_other_channels(args.board_id)[1....]] contains unprocessed bytes
if end byte is 0xC0 there are accel data in data[BoardShim.get_accel_channels(args.board_id)[....]] else there are zeros
if end byte is 0xC1 there are analog data in data[BoardShim.get_analog_channels(args.board_id)[....]] else there are zeros
"""
print (data[BoardShim.get_other_channels(args.board_id)[0]][0:5]) # should be standard end byte 0xC0
print (data[BoardShim.get_other_channels(args.board_id)[0]][-5:]) # should be analog and byte 0xC1
DataFilter.write_file (data, 'cyton_data_new.txt', 'w')
def main ():
parser = argparse.ArgumentParser ()
# use docs to check which parameters are required for specific board, e.g. for Cyton - set serial port
parser.add_argument ('--ip-port', type = int, help = 'ip port', required = False, default = 0)
parser.add_argument ('--ip-protocol', type = int, help = 'ip protocol, check IpProtocolType enum', required = False, default = 0)
parser.add_argument ('--ip-address', type = str, help = 'ip address', required = False, default = '')
parser.add_argument ('--serial-port', type = str, help = 'serial port', required = False, default = '')
parser.add_argument ('--mac-address', type = str, help = 'mac address', required = False, default = '')
parser.add_argument ('--other-info', type = str, help = 'other info', required = False, default = '')
parser.add_argument ('--board-id', type = int, help = 'board id, check docs to get a list of supported boards', required = True)
parser.add_argument ('--log', action = 'store_true')
args = parser.parse_args ()
params = BrainFlowInputParams ()
params.ip_port = args.ip_port
params.serial_port = args.serial_port
params.mac_address = args.mac_address
params.other_info = args.other_info
params.ip_address = args.ip_address
params.ip_protocol = args.ip_protocol
if (args.log):
BoardShim.enable_dev_board_logger ()
else:
BoardShim.disable_board_logger ()
board = BoardShim (args.board_id, params)
board.prepare_session ()
# disable 2nd channel for cyton use real board to check it, emulator ignores commands
if args.board_id == brainflow.board_shim.BoardIds.CYTON_BOARD.value:
board.config_board ('x2100000X')
board.start_stream ()
time.sleep (10)
data = board.get_board_data ()
board.stop_stream ()
board.release_session ()
eeg_channels = BoardShim.get_eeg_channels (args.board_id)
for count, channel in enumerate (eeg_channels):
if count == 0:
DataFilter.perform_bandpass (data[channel], BoardShim.get_sampling_rate (args.board_id), 15.0, 6.0, 4, FilterTypes.BESSEL.value, 0)
elif count == 1:
DataFilter.perform_bandstop (data[channel], BoardShim.get_sampling_rate (args.board_id), 5.0, 1.0, 3, FilterTypes.BUTTERWORTH.value, 0)
elif count == 2:
DataFilter.perform_lowpass (data[channel], BoardShim.get_sampling_rate (args.board_id), 9.0, 5, FilterTypes.CHEBYSHEV_TYPE_1.value, 1)
elif count == 3:
DataFilter.perform_highpass (data[channel], BoardShim.get_sampling_rate (args.board_id), 3.0, 4, FilterTypes.BUTTERWORTH.value, 0)
def main():
BoardShim.enable_dev_board_logger()
params = BrainFlowInputParams()
board = BoardShim(BoardIds.MUSE_S_BOARD, params)
board.prepare_session()
board.config_board('p61')
board.start_stream(45000, 'file://data.csv:w')
time.sleep(10)
data = board.get_board_data()
board.stop_stream()
board.release_session()
print(data)
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--serial-port',
type=str,
help='serial port',
required=True)
parser.add_argument('--mac-address',
type=str,
help='mac address',
required=False,
default='')
args = parser.parse_args()
BoardShim.enable_dev_board_logger()
params = BrainFlowInputParams()
params.serial_port = args.serial_port
params.mac_address = args.mac_address
board = BoardShim(BoardIds.GANGLION_BOARD.value, params)
board.prepare_session()
# expected result: 5 seconds of resistance data(unknown sampling rate) after that 5 seconds of exg data
board.config_board('z')
board.start_stream(45000, 'file://raw_data.csv:w')
time.sleep(5)
board.config_board('Z')
time.sleep(5)
data = board.get_board_data()
board.stop_stream()
board.release_session()
print(data)
resistance_channels = BoardShim.get_resistance_channels(
BoardIds.GANGLION_BOARD.value)
print(resistance_channels)
def main():
BoardShim.enable_dev_board_logger()
params = BrainFlowInputParams()
board = BoardShim(BoardIds.BRAINBIT_BOARD.value, params)
board.prepare_session()
board.start_stream(45000, 'file://raw_data.csv:w')
# its a little tricky and unclear, need to call start_stream to create data acquisition thread(it also sends CommandStartSignal)
# after that send CommandStartResist, CommandStopResist and to get EEG data call CommandStartSignal manually
board.config_board('CommandStartResist')
time.sleep(5)
board.config_board('CommandStopResist')
board.config_board('CommandStartSignal')
time.sleep(5)
data = board.get_board_data()
board.stop_stream()
board.release_session()
print(data)
def main():
parser = argparse.ArgumentParser()
# use docs to check which parameters are required for specific board, e.g. for Cyton - set serial port
parser.add_argument('--ip-port',
type=int,
help='ip port',
required=False,
default=0)
parser.add_argument('--ip-protocol',
type=int,
help='ip protocol, check IpProtocolType enum',
required=False,
default=0)
parser.add_argument('--ip-address',
type=str,
help='ip address',
required=False,
default='')
parser.add_argument('--serial-port',
type=str,
help='serial port',
required=False,
default='')
parser.add_argument('--mac-address',
type=str,
help='mac address',
required=False,
default='')
parser.add_argument('--other-info',
type=str,
help='other info',
required=False,
default='')
parser.add_argument('--streamer-params',
type=str,
help='other info',
required=False,
default='')
parser.add_argument(
'--board-id',
type=int,
help='board id, check docs to get a list of supported boards',
required=True)
parser.add_argument('--log', action='store_true')
parser.add_argument('--run-time',
type=int,
help='run time for one iteration in sec',
required=True)
parser.add_argument('--num-iters',
type=int,
help='number of iterations',
default=1)
parser.add_argument(
'--channels',
type=str,
help='channels to plot in format 0,1,2 by default plot all channels',
default=None)
parser.add_argument('--config-file',
type=str,
help='file with strings to send to device',
default=None)
args = parser.parse_args()
params = BrainFlowInputParams()
params.ip_port = args.ip_port
params.serial_port = args.serial_port
params.mac_address = args.mac_address
params.other_info = args.other_info
params.ip_address = args.ip_address
params.ip_protocol = args.ip_protocol
if (args.log):
BoardShim.enable_dev_board_logger()
else:
BoardShim.disable_board_logger()
# for streaming board need to use master board id
master_board_id = args.board_id
if args.board_id == BoardIds.STREAMING_BOARD.value:
master_board_id = int(params.other_info)
board = BoardShim(args.board_id, params)
board.prepare_session()
if args.config_file:
with open(args.config_file) as file:
lines = file.readlines()
for line in lines:
board.config_board(line)
buffer_size = int(
BoardShim.get_sampling_rate(master_board_id) * args.run_time *
1.2) # + 20% for safety
if master_board_id in (BoardIds.CYTON_BOARD.value,
BoardIds.CYTON_WIFI_BOARD.value,
BoardIds.GANGLION_WIFI_BOARD.value):
bytes_per_package = 33
elif master_board_id in (BoardIds.CYTON_DAISY_BOARD,
BoardIds.CYTON_DAISY_WIFI_BOARD.value):
bytes_per_package = 66
elif master_board_id == BoardIds.SYNTHETIC_BOARD.value:
bytes_per_package = 104
elif master_board_id == BoardIds.NOVAXR_BOARD.value:
bytes_per_package = 72
else:
raise ValueError('unsupported board')
timestamp_channel = BoardShim.get_timestamp_channel(master_board_id)
package_num_channel = BoardShim.get_package_num_channel(master_board_id)
try:
cur_id = 0
for i in range(args.num_iters):
# wait for an input
input('Press Enter to continue...')
BoardShim.log_message(
LogLevels.LEVEL_INFO.value,
'\nRunning iteration %d/%d\n' % (i, args.num_iters))
# start stream and get data
board.start_stream(buffer_size, args.streamer_params)
time.sleep(args.run_time)
board.stop_stream()
data = board.get_board_data()
if data.shape[1] == 0:
BoardShim.log_message(LogLevels.LEVEL_WARN.value,
'\nNo data received!\n')
continue
# calculate some metrics
total_bytes_received = bytes_per_package * data.shape[1]
packages_per_sec = float(data.shape[1]) / float(args.run_time)
timestamp_array = data[timestamp_channel]
time_diff_array = list()
for i in range(0, timestamp_array.size - 1):
time_diff_array.append(timestamp_array[i + 1] -
timestamp_array[i])
package_num_array = data[package_num_channel]
lost_packages = 0
expected = package_num_array[0]
while cur_id < package_num_array.size:
if expected == 256:
expected = 0
if package_num_array[cur_id] != expected:
BoardShim.log_message(
LogLevels.LEVEL_WARN.value,
'package loss detected: position %d package_num value %d expected value %d'
% (cur_id, package_num_array[cur_id], expected))
lost_packages = lost_packages + 1
else:
cur_id = cur_id + 1
expected = expected + 1
package_loss = (lost_packages / data.shape[1]) * 100
# provide results for iteration
BoardShim.log_message(LogLevels.LEVEL_INFO.value, '\nResults:\n')
BoardShim.log_message(LogLevels.LEVEL_INFO.value,
'package loss percent %f' % package_loss)
BoardShim.log_message(
LogLevels.LEVEL_INFO.value,
'average time delta %f' % statistics.mean(time_diff_array))
BoardShim.log_message(
LogLevels.LEVEL_INFO.value, 'std deviation of time delta %f' %
statistics.pstdev(time_diff_array))
BoardShim.log_message(LogLevels.LEVEL_INFO.value,
'total packages received %d' % data.shape[1])
BoardShim.log_message(LogLevels.LEVEL_INFO.value,
'packages per sec %f' % packages_per_sec)
BoardShim.log_message(
LogLevels.LEVEL_INFO.value,
'total bytes received %d' % total_bytes_received)
# plot data
eeg_channels = BoardShim.get_eeg_channels(master_board_id)
emg_channels = BoardShim.get_emg_channels(master_board_id)
total_channels = list()
if args.channels is not None:
selected_channels = [int(x) for x in args.channels.split(',')]
temp_channels = eeg_channels
for ch in emg_channels:
if ch not in temp_channels:
temp_channels.append(ch)
for i in range(len(temp_channels)):
if i in selected_channels:
total_channels.append(temp_channels[i])
else:
# for cyton/ganglion eeg_channels and emg_channels are the same array because we can not split it
# for novaxr its 2 different arrays, join them
total_channels = eeg_channels
for ch in emg_channels:
if ch not in total_channels:
total_channels.append(ch)
total_channels.append(timestamp_channel)
columns = list()
for i in range(len(total_channels) - 1):
columns.append('channel_%d' % (int(total_channels[i]) - 1))
columns.append('timestamp')
df = pd.DataFrame(np.transpose(data))
df.to_csv('all_data_%d.csv' % i)
df_to_plot = df[total_channels]
df_to_plot.columns = columns
df_to_plot.to_csv('selected_data_%d.csv' % i)
df_to_plot.plot(subplots=True, x='timestamp', style='.-')
plt.show()
finally:
# release session in the end
board.release_session()
def __init__(self,
debug=False,
display=True,
num_channels=None,
wifi=True):
# make audio stream
self.audio_stream = sd.InputStream(device=None,
channels=1,
samplerate=16000)
# make emg stream
params = BrainFlowInputParams()
if debug:
board_id = -1 # synthetic
sample_rate = 256
elif not wifi:
board_id = BoardIds.CYTON_BOARD.value
params.serial_port = '/dev/ttyUSB0'
sample_rate = 250
else:
board_id = BoardIds.CYTON_WIFI_BOARD.value
params.ip_port = 8001
params.ip_address = '192.168.4.1'
sample_rate = 1000
self.emg_channels = BoardShim.get_emg_channels(board_id)
if num_channels is not None:
self.emg_channels = self.emg_channels[:num_channels]
board = BoardShim(board_id, params)
board.prepare_session()
board.config_board('/3') # configure for digital read
board.start_stream()
self.board = board
# config and make data holders
audio_multiplier = int(16000 / sample_rate)
window = sample_rate * 5
self.audio_data = []
self.emg_data = []
self.button_data = []
self.debug = debug
self.previous_sample_number = -1
# plot setup
self.display = display
if display:
plt.ion()
fig, (audio_ax, emg_ax) = plt.subplots(2)
audio_ax.axis((0, window * audio_multiplier, -1, 1))
emg_ax.axis((0, window, -300, 300))
audio_lines = audio_ax.plot(np.zeros(window * audio_multiplier))
emg_lines = emg_ax.plot(np.zeros((window, len(self.emg_channels))))
for l, c in zip(emg_lines, [
'grey', 'mediumpurple', 'blue', 'green', 'yellow',
'orange', 'red', 'sienna'
]):
l.set_color(c)
text = emg_ax.text(50, -250, 'RMS: 0')
for ax in (audio_ax, emg_ax):
ax.set_yticks([0])
ax.yaxis.grid(True)
ax.tick_params(bottom=False,
top=False,
labelbottom=False,
right=False,
left=False,
labelleft=False)
fig.tight_layout(pad=0)
def update_plot(frame):
""" This is called by matplotlib for each plot update. """
audio_to_plot = get_last_sequence(self.audio_data,
window * audio_multiplier, 1,
False, sample_rate)
audio_to_plot = audio_to_plot.squeeze(1)
audio_lines[0].set_ydata(audio_to_plot)
emg_to_plot = get_last_sequence(self.emg_data, window,
len(self.emg_channels), True,
sample_rate)
for column, line in enumerate(emg_lines):
line.set_ydata(emg_to_plot[:, column])
text.set_text('RMS: ' +
str(emg_to_plot[-sample_rate * 2:-sample_rate //
2].std()))
return audio_lines + emg_lines
self.ani = FuncAnimation(fig, update_plot, interval=30)
def main():
parser = argparse.ArgumentParser()
# use docs to check which parameters are required for specific board, e.g. for Cyton - set serial port
parser.add_argument('--ip-port',
type=int,
help='ip port',
required=False,
default=0)
parser.add_argument('--ip-protocol',
type=int,
help='ip protocol, check IpProtocolType enum',
required=False,
default=0)
parser.add_argument('--ip-address',
type=str,
help='ip address',
required=False,
default='')
parser.add_argument('--serial-port',
type=str,
help='serial port',
required=False,
default='')
parser.add_argument('--mac-address',
type=str,
help='mac address',
required=False,
default='')
parser.add_argument('--other-info',
type=str,
help='other info',
required=False,
default='')
parser.add_argument(
'--board-id',
type=int,
help='board id, check docs to get a list of supported boards',
required=True)
parser.add_argument('--log', action='store_true')
args = parser.parse_args()
# in fact it can be CytonDaisy or Wifi Shield based boards, limit it to only Cyton in demo
if args.board_id != BoardIds.CYTON_BOARD.value:
raise ValueError('wrong board id, should be Cyton')
params = BrainFlowInputParams()
params.ip_port = args.ip_port
params.serial_port = args.serial_port
params.mac_address = args.mac_address
params.other_info = args.other_info
params.ip_address = args.ip_address
params.ip_protocol = args.ip_protocol
if (args.log):
BoardShim.enable_dev_board_logger()
else:
BoardShim.disable_board_logger()
board = BoardShim(args.board_id, params)
board.prepare_session()
board.config_board('/2') # enable analog mode only for Cyton Based Boards!
board.start_stream()
time.sleep(10)
data = board.get_board_data()
board.stop_stream()
board.release_session()
other_channels = BoardShim.get_other_channels(args.board_id)
accel_channels = BoardShim.get_accel_channels(args.board_id)
analog_channels = BoardShim.get_analog_channels(args.board_id)
"""
data format for cyton with analog and accel data,
data[get_other_channels(board_id)[0]] contains cyton end byte
if end byte is 0xC0 there are accel data in data[get_accel_channels(board_id)[....]] else there are zeros
if end byte is 0xC1 there are analog data in data[get_analog_channels(board_id)[....]] else there are zeros
"""
if not other_channels:
raise ValueError('no cyton end byte foud')
print('end bytes for first 20 packages:')
print(data[other_channels[0]][0:20])
# we send /2 to enable analog mode so here we will see zeroes
print('accel data for first 20 packages:')
for count, channel in enumerate(accel_channels):
print(data[channel][0:20])
# analog data are in int32 format but we return single array fron low level api so it was casted to double wo any changes
print('analog data for first 20 packages:')
for count, channel in enumerate(analog_channels):
print(data[channel][0:20])
def main():
parser = argparse.ArgumentParser()
# use docs to check which parameters are required for specific board, e.g. for Cyton - set serial port
parser.add_argument('--ip-port',
type=int,
help='ip port',
required=False,
default=0)
parser.add_argument('--ip-protocol',
type=int,
help='ip protocol, check IpProtocolType enum',
required=False,
default=0)
parser.add_argument('--ip-address',
type=str,
help='ip address',
required=False,
default='')
parser.add_argument('--serial-port',
type=str,
help='serial port',
required=False,
default='')
parser.add_argument('--mac-address',
type=str,
help='mac address',
required=False,
default='')
parser.add_argument('--other-info',
type=str,
help='other info',
required=False,
default='')
parser.add_argument(
'--board-id',
type=int,
help='board id, check docs to get a list of supported boards',
required=True)
parser.add_argument('--log', action='store_true')
args = parser.parse_args()
params = BrainFlowInputParams()
params.ip_port = args.ip_port
params.serial_port = args.serial_port
params.mac_address = args.mac_address
params.other_info = args.other_info
params.ip_address = args.ip_address
params.ip_protocol = args.ip_protocol
if (args.log):
BoardShim.enable_dev_board_logger()
else:
BoardShim.disable_board_logger()
board = BoardShim(args.board_id, params)
board.prepare_session()
# disable 2nd channel for cyton use real board to check it, emulator ignores commands
if args.board_id == brainflow.board_shim.BoardIds.CYTON_BOARD.value:
board.config_board('x2100000X')
board.start_stream()
time.sleep(10)
data = board.get_board_data()
board.stop_stream()
board.release_session()
print(data)
def main ():
params = BrainFlowInputParams ()
params.board_id = 1
board_id = 1
params.serial_port = 'COM3'
sampling_rate = BoardShim.get_sampling_rate (board_id)
time_thres = 100
max_val = -100000000000
vals_mean = 0
num_samples = 5000
samples = 0
BoardShim.enable_dev_board_logger ()
board = BoardShim (board_id, params)
board.prepare_session ()
if board_id == brainflow.board_shim.BoardIds.GANGLION_BOARD.value:
board.config_board ('x1060000X')
board.start_stream (45000)
print("starting calibration")
time.sleep(5)
data = board.get_board_data()
print("start blinking")
while(samples < num_samples):
data = board.get_board_data()
if(len(data[1]) > 0):
DataFilter.perform_rolling_filter (data[1], 2, AggOperations.MEAN.value)
vals_mean += sum([data[1,i]/num_samples for i in range(len(data[1]))])
samples += len(data[1])
if(np.amax(data[1]) > max_val):
max_val = np.amax(data[1])
blink_thres = 0.5*((max_val - vals_mean)**2)
print("mean value")
print(vals_mean)
print("max value")
print(max_val)
print("threshold")
print(blink_thres)
print("CALIBRATION DONE START PLAYING")
prev_time = int(round(time.time() * 1000))
while True:
data = board.get_board_data()
if(len(data[1]) > 0):
DataFilter.perform_rolling_filter (data[1], 2, AggOperations.MEAN.value)
if((int(round(time.time() * 1000)) - time_thres) > prev_time):
prev_time = int(round(time.time() * 1000))
for element in data[1]:
if(((element - vals_mean)**2) >= blink_thres):
pydirectinput.press('space')
break
board.stop_stream ()
board.release_session ()
def main(argv):
'''Takes args and initiates streaming'''
if argv:
# manage settings read form a yaml file
if argv[0] == '--set':
file_settings = argv[1]
data = read_settings(file_settings)
if not data:
print('The end')
sys.exit()
args, arduino, chan_commands = manage_settings_data(data)
else:
print(CRED + "Use --set *.yml to load settings" + CEND,
"\nThe end",
sep='')
sys.exit()
# debug / check data from settings
#print(f"args:\n{args}\narduino:\n{arduino}\ncommands:\n{chan_commands}\n")
# open serial port for external triggers (arduino/serial)
ser = None
if arduino:
print("Connecting to serial port...")
try:
ser = serial.Serial(arduino["serial_port"],
arduino['baud'],
write_timeout=0)
time.sleep(3) # minimum 2 sec to wake device up!
except (serial.SerialException, ValueError) as err:
print(CRED + f"Error: {err}" + CEND)
if ser:
ser_data = ser.readline().decode(
'utf-8', errors='ignore').strip().split(",")
ser.write("a".encode()) # message for arduino to give "on" sound
time.sleep(
0.5) # must be longer than time of "on" sound from arduino
print(100 * '-')
print(
CGREEN +
f'Established serial connection to Arduino on port: {arduino["serial_port"]} as {arduino["name"]}'
+ CEND +
f"\nMessage from board: {ser_data[0]}, reading sensor at {ser_data[1]} Hz"
)
ping_time = ping(
ser, 10) # estimate mean ping time between pc and arduino
# LSL external outlet (stream form arduino/serial) configuration and initialization
if ser:
marker_delay = arduino.get(
'delay', 0) + ping_time / 2 # half the two way transfer time
info = StreamInfo(name=arduino['name'],
type=arduino['type'],
channel_count=arduino['channel_count'],
channel_format=arduino['channel_format'],
source_id=arduino['source_id'])
outlet_ext = StreamOutlet(info)
print(50 * '-')
print(CGREEN + f'LSL Stream: {info.name()} initialized' + CEND)
user_choice("Initiate? 'y' -> yes, 'q' -> quit\n--> ", serial=ser)
BoardShim.enable_dev_board_logger()
# brainflow initialization
params = BrainFlowInputParams()
params.serial_port = args['serial_port']
params.ip_address = args['ip_address']
board = BoardShim(args['board_id'], params)
# LSL internal outlet (stream form board) configuration and initialization
channel_names = {}
n_channels = {}
srate = {}
info = {}
outlet_int = {}
fw_delay = {}
for type in args['data_type']:
channel_names[type] = args['channel_names'][type].split(',')
n_channels[type] = len(channel_names[type])
srate[type] = board.get_sampling_rate(args['board_id'])
name = args['name'] + "_" + type
uid = args['uid'] + "_" + type
info[type] = StreamInfo(name, type, n_channels[type], srate[type],
'double64', uid)
# add channel labels
chans = info[type].desc().append_child("channels")
for label in channel_names[type]:
chan = chans.append_child("channel")
chan.append_child_value("label", label)
outlet_int[type] = StreamOutlet(info[type])
fw_delay[type] = args['delay']
# prepare session; exit if board is not ready
try:
board.prepare_session()
except brainflow.board_shim.BrainFlowError as e:
print(CRED + f"Error: {e}" + CEND)
if ser:
ser.write("c".encode()) # message for arduino to stop streaming
time.sleep(1)
ser.close()
print("The end")
time.sleep(1)
sys.exit()
# remove daisy if attached, when using only Cyton
if (args['board_id'] == 0) and (args['daisy_attached']):
res_query = board.config_board("c")
time.sleep(0.5)
print(f"Response to query register settings:\n{res_query}")
# wait until user accepts
user_choice("Send commands to board? 'y' -> yes, 'q' -> quit\n--> ",
board=board,
serial=ser)
# iterate over channel commands, send one and wait for a response from board
# to restore default channel settings 'd' can be sent
for chan, command in chan_commands.items():
res_string = board.config_board(command)
time.sleep(0.1)
if res_string.find('Success') != -1:
res = CGREEN + res_string + CEND
else:
res = CRED + res_string + CEND
print(f"Response from {chan}: {res}")
# show stream configuration and wait until user accepts or quits
print(50 * "-")
for type in args['data_type']:
print(
f"{type}:\nNumber of channels: {n_channels[type]}\nSampling rate: {srate[type]}\n"
f"Time limit: {args['max_time'] // 60} min. {args['max_time'] % 60} sec.\n"
)
user_choice("Start streaming? 'y' -> yes, 'q' -> quit\n--> ",
board=board,
serial=ser)
# board starts streaming
board.start_stream(45000, args['streamer_params'])
time.sleep(1)
# define threads which will collect continuous data (e.g. EEG) and markers (if arduino/serial is set up)
thread_cont = threading.Thread(
target=collect_cont, args=[board, args, srate, outlet_int, fw_delay])
thread_cont.start()
if ser:
thread_markers = threading.Thread(target=collect_markers,
args=[ser, outlet_ext, marker_delay])
thread_markers.start()
# wait for stop message from user while running data collecting threads
time.sleep(2)
user_choice("To stop streaming and quit press 'q' + ENTER\n--> ",
board=board,
serial=ser,
thread_initiated=True)
