def __init__(self, path=None):
try:
self.device = hidapi.hid_open(
HASSEB_USB_VENDOR, HASSEB_USB_PRODUCT,
None) if not bool(path) else hidapi.hid_open_path(path)
self.device_found = 1
except:
self.device_found = None
def __init__(self):
self.seq1 = 0x0001
self.seq2 = 0x0068
self.handle = None
# Setup Device
hidapi.hid_init()
for dev in hidapi.hid_enumerate(vendor_id=0x03eb, product_id=0x2013):
self.handle = hidapi.hid_open_path(dev.path)
self.tx_type1(self.handle, '*IDN?')
self.info = self.rx(self.handle)
def setup(headset, is_research=True):
'''
`is_research` should be True if EPOC+, try False if you have an EPOC
'''
hidapi.hid_init()
path, serial_number = hid_enumerate()
if len(path) == 0:
print("Could not find device.")
print_hid_enumerate()
exit()
headset['device'] = hidapi.hid_open_path(path)
# Setup crypto
if is_old_model(serial_number):
headset['old_model'] = True
k = ['\0'] * 16
k[0] = serial_number[-1]
k[1] = '\0'
k[2] = serial_number[-2]
if is_research:
k[3] = 'H'
k[4] = serial_number[-1]
k[5] = '\0'
k[6] = serial_number[-2]
k[7] = 'T'
k[8] = serial_number[-3]
k[9] = '\x10'
k[10] = serial_number[-4]
k[11] = 'B'
else:
k[3] = 'T'
k[4] = serial_number[-3]
k[5] = '\x10'
k[6] = serial_number[-4]
k[7] = 'B'
k[8] = serial_number[-1]
k[9] = '\0'
k[10] = serial_number[-2]
k[11] = 'H'
k[12] = serial_number[-3]
k[13] = '\0'
k[14] = serial_number[-4]
k[15] = 'P'
key = ''.join(k)
print("Decryption key: " + key)
backend = default_backend()
cipher = Cipher(algorithms.AES(key.encode()), modes.ECB(), backend=backend)
decryptor = cipher.decryptor()
headset['decryptor'] = decryptor
def setup_not_windows(self):
"""
Setup for headset on a non-windows platform.
Receives packets from headset and sends them to a Queue to be processed
by the crypto greenlet.
"""
_os_decryption = False
if os.path.exists('/dev/eeg/raw'):
# The decryption is handled by the Linux epoc daemon. We don't need to handle it.
_os_decryption = True
hidraw = open("/dev/eeg/raw")
path, serial_number = hid_enumerate()
if len(path) == 0:
print("Could not find device.")
print_hid_enumerate()
sys.exit()
self.serial_number = serial_number
device = hidapi.hid_open_path(path)
crypto = gevent.spawn(self.setup_crypto, self.serial_number)
gevent.sleep(DEVICE_POLL_INTERVAL)
console_updater = gevent.spawn(self.update_console)
while self.running:
try:
if _os_decryption:
data = hidraw.read(32)
if data != "":
self.packets.put_nowait(
EmotivPacket(data, self.sensors, self.old_model))
else:
# Doesn't seem to matter how big we make the buffer 32 returned every time, 33 for other platforms
data = hidapi.hid_read(device, 34)
if len(data) == 32:
# Most of the time the 0 is truncated? That's ok we'll add it... Could probably not do this...
data.insert(0, 0)
if data != "":
if _os_decryption:
self.packets.put_nowait(
EmotivPacket(data, self.sensors,
self.old_model))
else:
# Queue it!
if self.write and self.write_raw:
self.write_data(data)
tasks.put_nowait(''.join(map(chr, data[1:])))
self.packets_received += 1
gevent.sleep(DEVICE_POLL_INTERVAL)
except KeyboardInterrupt:
self.running = False
except Exception, ex:
print("Setup emotiv.py(line=710): %s" % ex.message)
self.running = False
gevent.sleep(DEVICE_POLL_INTERVAL)
def setup(headset, is_research=True):
'''
`is_research` should be True if EPOC+, try False if you have an EPOC
'''
hidapi.hid_init()
path, serial_number = hid_enumerate()
if len(path) == 0:
print("Could not find device.")
print_hid_enumerate()
exit()
headset['device'] = hidapi.hid_open_path(path)
# Setup crypto
if is_old_model(serial_number):
headset['old_model'] = True
k = ['\0'] * 16
k[0] = serial_number[-1]
k[1] = '\0'
k[2] = serial_number[-2]
if is_research:
k[3] = 'H'
k[4] = serial_number[-1]
k[5] = '\0'
k[6] = serial_number[-2]
k[7] = 'T'
k[8] = serial_number[-3]
k[9] = '\x10'
k[10] = serial_number[-4]
k[11] = 'B'
else:
k[3] = 'T'
k[4] = serial_number[-3]
k[5] = '\x10'
k[6] = serial_number[-4]
k[7] = 'B'
k[8] = serial_number[-1]
k[9] = '\0'
k[10] = serial_number[-2]
k[11] = 'H'
k[12] = serial_number[-3]
k[13] = '\0'
k[14] = serial_number[-4]
k[15] = 'P'
key = ''.join(k)
print("Decryption key: " + key)
backend = default_backend()
cipher = Cipher(algorithms.AES(key.encode()), modes.ECB(), backend=backend)
decryptor = cipher.decryptor()
headset['decryptor'] = decryptor
def setup_not_windows(self):
"""
Setup for headset on a non-windows platform.
Receives packets from headset and sends them to a Queue to be processed
by the crypto greenlet.
"""
_os_decryption = False
if os.path.exists('/dev/eeg/raw'):
# The decryption is handled by the Linux epoc daemon. We don't need to handle it.
_os_decryption = True
hidraw = open("/dev/eeg/raw")
path, serial_number = hid_enumerate()
if len(path) == 0:
print("Could not find device.")
print_hid_enumerate()
sys.exit()
self.serial_number = serial_number
device = hidapi.hid_open_path(path)
crypto = gevent.spawn(self.setup_crypto, self.serial_number)
gevent.sleep(DEVICE_POLL_INTERVAL)
console_updater = gevent.spawn(self.update_console)
while self.running:
try:
if _os_decryption:
data = hidraw.read(32)
if data != "":
self.packets.put_nowait(EmotivPacket(data, self.sensors, self.old_model))
else:
# Doesn't seem to matter how big we make the buffer 32 returned every time, 33 for other platforms
data = hidapi.hid_read(device, 34)
if len(data) == 32:
# Most of the time the 0 is truncated? That's ok we'll add it... Could probably not do this...
data.insert(0, 0)
if data != "":
if _os_decryption:
self.packets.put_nowait(EmotivPacket(data, self.sensors, self.old_model))
else:
# Queue it!
if self.write and self.write_raw:
self.write_data(data)
tasks.put_nowait(''.join(map(chr, data[1:])))
self.packets_received += 1
gevent.sleep(DEVICE_POLL_INTERVAL)
except KeyboardInterrupt:
self.running = False
except Exception, ex:
print("Setup emotiv.py(line=710): %s" % ex.message)
self.running = False
gevent.sleep(DEVICE_POLL_INTERVAL)
def find_init_emotiv_non_windows():
global g_serial_number
global g_os_decryption
global g_device
global g_old_model
device_path = ''
devices = hidapi.hid_enumerate()
for device in devices:
is_emotiv = False
try:
if "Emotiv" in device.manufacturer_string:
is_emotiv = True
elif "Emotiv" in device.product_string:
is_emotiv = True
elif "EPOC" in device.product_string:
is_emotiv = True
elif "Brain Waves" in device.product_string:
is_emotiv = True
elif device.product_string == '00000000000':
is_emotiv = True
elif "EEG Signals" in device.product_string:
is_emotiv = True
if is_emotiv:
g_serial_number = device.serial_number
device_path = device.path
break
except:
pass
if g_serial_number == '':
print("Could not find device.")
shutdown_everything()
return
g_old_model = is_old_model(g_serial_number)
g_os_decryption = os.path.exists('/dev/eeg/raw')
if g_os_decryption:
g_device = open("/dev/eeg/raw")
else:
try:
g_device = hidapi.hid_open_path(device_path)
except Exception, ex:
print ex.message
shutdown_everything()
def setup_not_windows(self):
"""
Setup for headset on a non-windows platform.
Receives packets from headset and sends them to a Queue to be processed
by the crypto thread.
"""
if os.path.exists('/dev/eeg/raw'):
self.hid = open("/dev/eeg/raw")
if self.hid is not None:
# The decryption is handled by the Linux epoc daemon. We don't need to handle it.
self.platform += " raw_eeg"
else:
path, serial_number = hid_enumerate(hidapi, self.platform)
if len(path) == 0:
print_hid_enumerate(system_platform, hidapi)
raise Exception("Device not found")
self.serial_number = serial_number
self.hid = hidapi.hid_open_path(path)
def setup_not_windows(self):
"""
Setup for headset on a non-windows platform.
Receives packets from headset and sends them to a Queue to be processed
by the crypto thread.
"""
if os.path.exists('/dev/eeg/raw'):
self.hid = open("/dev/eeg/raw")
if self.hid is not None:
# The decryption is handled by the Linux epoc daemon. We don't need to handle it.
self.platform += " raw_eeg"
else:
path, serial_number = hid_enumerate(hidapi, self.platform)
if len(path) == 0:
print_hid_enumerate(system_platform, hidapi)
raise Exception("Device not found")
self.serial_number = serial_number
self.hid = hidapi.hid_open_path(path)
def tx_type2(handle, msg):
msg = bytes('@', 'utf-8') + seq2.to_bytes(1, byteorder='big') + bytes('{}\n@@@@@@@@@@@@@'.format(msg), 'utf-8')
hidapi.hid_write(handle, msg)
def rx(handle, numBytes=0x10):
return hidapi.hid_read_timeout(handle, numBytes, 1000)
def getPpm(handle):
tx_type2(handle, '*TR')
return int.from_bytes(rx(handle)[2:4], byteorder='little')
# Setup Device
hidapi.hid_init()
for dev in hidapi.hid_enumerate(vendor_id=0x03eb, product_id=0x2013):
handle = hidapi.hid_open_path(dev.path)
print('reading info from device')
tx_type1(handle, '*IDN?')
info = rx(handle) + rx(handle) + rx(handle) + rx(handle) + rx(handle) + rx(handle) + rx(handle)
print('ret:"' + str(info) + '"')
# Setup Chart
data_x = []
data_y = []
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
def fechAndDraw(i):
can_chase = True
can_chase_debug = int(a)
print "can_chase"
elif o == '-g':
can_guide = True
can_guide_mode = int(a)
print "can_guide"
elif o == '-i':
save_image = True
print "save_image"
# open teensy hid
path = find_teensy()
if path:
# open hid
dev = hidapi.hid_open_path(path)
if program != None:
print "set program", program
# create write program packet
buf, buf_size = create_teensy_program_packet(program)
# write to teensy
write_teensy(dev, buf, buf_size)
if dir1 != None:
print "set motors", dir1, pwm1, dir2, pwm2
# create set_motor packet
buf, buf_size = create_teensy_set_motor_packet(dir1, pwm1, dir2, pwm2)
# write to teensy
write_teensy(dev, buf, buf_size)
if freq != None:
print "beep", freq, duration
# create beep packet