def terminate_handler(bulb_led, device):
global exit_signal_received
if isinstance(bulb_led, Bulb):
bulb_led.stop_music()
if isinstance(device, ble_device_type):
device.disconnect()
print("exit")
exit_signal_received = True
# start
queue = Queue(maxsize=1)
#BLE connection
client = BleakClient(address_ledstrip)
client.connect()
client.write_gatt_char(IO_DATA_CHAR_UUID, bytearray([0xCC, 0x23, 0x33]))
#Yeelight Connection
bulb_led = Bulb("192.168.1.72", effect="smooth")
bulb_led.start_music(2000)
time.sleep(1)
t = threading.Thread(name="color_change_thread",
target=color_setter_thread,
args=(
bulb_led,
client,
queue,
))
t.start()
class BASE_BLE_DEVICE:
def __init__(self,
scan_dev,
init=False,
name=None,
lenbuff=100,
rssi=None,
log=None):
# BLE
self.ble_client = None
if hasattr(scan_dev, 'address'):
self.UUID = scan_dev.address
self.name = scan_dev.name
self.rssi = scan_dev.rssi
self.address = self.UUID
else:
self.UUID = scan_dev
self.name = name
self.rssi = rssi
self.address = self.UUID
self.connected = False
self.services = {}
self.services_rsum = {}
self.services_rsum_handles = {}
self.chars_desc_rsum = {}
self.readables = {}
self.writeables = {}
self.notifiables = {}
self.readables_handles = {}
self.writeables_handles = {}
self.notifiables_handles = {}
self.loop = asyncio.get_event_loop()
# self.raw_buff_queue = asyncio.Queue()
self.kb_cmd = None
self.is_notifying = False
self.cmd_finished = True
self.len_buffer = lenbuff
#
self.bytes_sent = 0
self.buff = b''
self.raw_buff = b''
self.prompt = b'>>> '
self.response = ''
self._cmdstr = ''
self._cmdfiltered = False
self._kbi = '\x03'
self._banner = '\x02'
self._reset = '\x04'
self._traceback = b'Traceback (most recent call last):'
self._flush = b''
self.output = None
self.platform = None
self.break_flag = None
self.log = log
#
if init:
self.connect()
# do connect
def set_event_loop(self, loop):
self.loop = loop
# self.ble_client.loop = loop
async def connect_client(self, n_tries=3, log=True):
n = 0
self.ble_client = BleakClient(self.UUID)
while n < n_tries:
try:
await asyncio.wait_for(self.ble_client.connect(timeout=3),
timeout=60)
self.connected = await self.ble_client.is_connected()
if self.connected:
self.name = self.ble_client._device_info.name()
if log:
self.log.info("Connected to: {}".format(self.UUID))
break
except Exception as e:
if log:
if not self.break_flag:
self.log.error(e)
self.log.info('Trying again...')
else:
break
time.sleep(1)
n += 1
async def disconnect_client(self, log=True, timeout=None):
if timeout:
await asyncio.wait_for(self.ble_client.disconnect(),
timeout=timeout)
else:
await self.ble_client.disconnect()
self.connected = await self.ble_client.is_connected()
if not self.connected:
if log:
self.log.info("Disconnected successfully")
def connect(self, n_tries=3, show_servs=False, log=True):
self.loop.run_until_complete(
self.connect_client(n_tries=n_tries, log=log))
self.get_services(log=show_servs)
def is_connected(self):
return self.loop.run_until_complete(self.ble_client.is_connected())
def disconnect(self, log=True, timeout=None):
self.loop.run_until_complete(
self.disconnect_client(log=log, timeout=timeout))
def set_disconnected_callback(self, callback):
self.ble_client.set_disconnected_callback(callback)
def disconnection_callback(self, client):
self.connected = False
# RSSI
def get_RSSI(self):
if hasattr(self.ble_client, 'get_rssi'):
self.rssi = self.loop.run_until_complete(
self.ble_client.get_rssi())
else:
self.rssi = 0
return self.rssi
# SERVICES
def get_services(self, log=True):
for service in self.ble_client.services:
if log:
print("[Service] {0}: {1}".format(service.uuid.lower(),
service.description))
self.services[service.description] = {
'UUID': service.uuid.lower(),
'CHARS': {}
}
self.services_rsum_handles[service.description] = []
for char in service.characteristics:
self.services_rsum_handles[service.description].append(
char.handle)
if "read" in char.properties:
try:
self.readables[char.description] = char.uuid
self.readables_handles[char.handle] = char.description
except Exception as e:
print(e)
if "notify" in char.properties or 'indicate' in char.properties:
try:
self.notifiables[char.description] = char.uuid
self.notifiables_handles[
char.handle] = char.description
except Exception as e:
print(e)
if "write" in char.properties or 'write-without-response' in char.properties:
try:
self.writeables[char.description] = char.uuid
self.writeables_handles[char.handle] = char.description
except Exception as e:
print(e)
try:
self.services[service.description]['CHARS'][char.uuid] = {
char.description: ",".join(char.properties),
'Descriptors': {
descriptor.uuid: descriptor.handle
for descriptor in char.descriptors
}
}
except Exception as e:
print(e)
self.chars_desc_rsum[char.description] = {}
for descriptor in char.descriptors:
self.chars_desc_rsum[char.description][
descriptor.description] = descriptor.handle
if log:
try:
print(
"\t[Characteristic] {0}: ({1}) | Name: {2}".format(
char.uuid, ",".join(char.properties),
char.description))
except Exception as e:
print(e)
if log:
for descriptor in char.descriptors:
print("\t\t[Descriptor] [{0}]: {1} (Handle: {2}) ".
format(descriptor.uuid, descriptor.description,
descriptor.handle))
self.services_rsum = {
key: [
list(list(val['CHARS'].values())[i].keys())[0]
for i in range(len(list(val['CHARS'].values())))
]
for key, val in self.services.items()
}
# WRITE/READ SERVICES
def fmt_data(self, data, CR=True):
if sys.platform == 'linux':
if CR:
return bytearray(data + '\r', 'utf-8')
else:
return bytearray(data, 'utf-8')
else:
if CR:
return bytes(data + '\r', 'utf-8')
else:
return bytes(data, 'utf-8')
async def as_read_descriptor(self, handle):
return bytes(await self.ble_client.read_gatt_descriptor(handle))
def read_descriptor_raw(self, key=None, char=None):
if key is not None:
# print(self.chars_desc_rsum[char])
if key in list(self.chars_desc_rsum[char]):
data = self.loop.run_until_complete(
self.as_read_descriptor(self.chars_desc_rsum[char][key]))
return data
else:
print('Descriptor not available for this characteristic')
def read_descriptor(self, key=None, char=None, data_fmt="utf8"):
try:
if data_fmt == 'utf8':
data = self.read_descriptor_raw(key=key,
char=char).decode('utf8')
return data
else:
data, = struct.unpack(data_fmt,
self.read_char_raw(key=key, char=char))
return data
except Exception as e:
print(e)
async def as_read_char(self, uuid):
return bytes(await self.ble_client.read_gatt_char(uuid))
def read_char_raw(self, key=None, uuid=None, handle=None):
if key is not None:
if key in list(self.readables.keys()):
if handle:
data = self.loop.run_until_complete(
self.as_read_char(handle))
else:
data = self.loop.run_until_complete(
self.as_read_char(self.readables[key]))
return data
else:
print('Characteristic not readable')
else:
if uuid is not None:
if uuid in list(self.readables.values()):
if handle:
data = self.loop.run_until_complete(
self.as_read_char(handle))
else:
data = self.loop.run_until_complete(
self.as_read_char(uuid))
return data
else:
print('Characteristic not readable')
def read_char(self, key=None, uuid=None, data_fmt="<h", handle=None):
try:
if data_fmt == 'utf8': # Here function that handles format and unpack properly
data = self.read_char_raw(key=key, uuid=uuid,
handle=handle).decode('utf8')
return data
else:
if data_fmt == 'raw':
data = self.read_char_raw(key=key,
uuid=uuid,
handle=handle)
return data
else:
data, = struct.unpack(
data_fmt,
self.read_char_raw(key=key, uuid=uuid, handle=handle))
return data
except Exception as e:
print(e)
async def as_write_char(self, uuid, data):
await self.ble_client.write_gatt_char(uuid, data)
def write_char(self, key=None, uuid=None, data=None, handle=None):
if key is not None:
if key in list(self.writeables.keys()):
if handle:
data = self.loop.run_until_complete(
self.as_write_char(handle, data))
else:
data = self.loop.run_until_complete(
self.as_write_char(self.writeables[key],
data)) # make fmt_data
return data
else:
print('Characteristic not writeable')
else:
if uuid is not None:
if uuid in list(self.writeables.values()):
if handle:
data = self.loop.run_until_complete(
self.as_write_char(handle, data))
else:
data = self.loop.run_until_complete(
self.as_write_char(uuid, data)) # make fmt_data
return data
else:
print('Characteristic not writeable')
def write_char_raw(self, key=None, uuid=None, data=None):
if key is not None:
if key in list(self.writeables.keys()):
data = self.loop.run_until_complete(
self.as_write_char(self.writeables[key],
self.fmt_data(
data, CR=False))) # make fmt_data
return data
else:
print('Characteristic not writeable')
else:
if uuid is not None:
if uuid in list(self.writeables.values()):
data = self.loop.run_until_complete(
self.as_write_char(uuid, self.fmt_data(
data, CR=False))) # make fmt_data
return data
else:
print('Characteristic not writeable')
def read_callback(self, sender, data):
self.raw_buff += data
def read_callback_follow(self, sender, data):
try:
if not self._cmdfiltered:
cmd_filt = bytes(self._cmdstr + '\r\n', 'utf-8')
data = b'' + data
data = data.replace(cmd_filt, b'', 1)
# data = data.replace(b'\r\n>>> ', b'')
self._cmdfiltered = True
else:
try:
data = b'' + data
# data = data.replace(b'\r\n>>> ', b'')
except Exception as e:
pass
self.raw_buff += data
if self.prompt in data:
data = data.replace(b'\r',
b'').replace(b'\r\n>>> ', b'').replace(
b'>>> ',
b'').decode('utf-8', 'ignore')
if data != '':
print(data, end='')
else:
data = data.replace(b'\r',
b'').replace(b'\r\n>>> ', b'').replace(
b'>>> ',
b'').decode('utf-8', 'ignore')
print(data, end='')
except KeyboardInterrupt:
print('CALLBACK_KBI')
pass
#
async def as_write_read_waitp(self, data, rtn_buff=False):
await self.ble_client.start_notify(self.readables['TX'],
self.read_callback)
if len(data) > self.len_buffer:
for i in range(0, len(data), self.len_buffer):
await self.ble_client.write_gatt_char(
self.writeables['RX'], data[i:i + self.len_buffer])
else:
await self.ble_client.write_gatt_char(self.writeables['RX'], data)
while self.prompt not in self.raw_buff:
await asyncio.sleep(0.01, loop=self.loop)
await self.ble_client.stop_notify(self.readables['TX'])
if rtn_buff:
return self.raw_buff
async def as_write_read_follow(self, data, rtn_buff=False):
if not self.is_notifying:
try:
await self.ble_client.start_notify(self.readables['TX'],
self.read_callback_follow)
self.is_notifying = True
except Exception as e:
pass
if len(data) > self.len_buffer:
for i in range(0, len(data), self.len_buffer):
await self.ble_client.write_gatt_char(
self.writeables['RX'], data[i:i + self.len_buffer])
else:
await self.ble_client.write_gatt_char(self.writeables['RX'], data)
while self.prompt not in self.raw_buff:
try:
await asyncio.sleep(0.01, loop=self.loop)
except KeyboardInterrupt:
print('Catch here1')
data = bytes(self._kbi, 'utf-8')
await self.ble_client.write_gatt_char(self.writeables['RX'],
data)
if self.is_notifying:
try:
await self.ble_client.stop_notify(self.readables['TX'])
self.is_notifying = False
except Exception as e:
pass
self._cmdfiltered = False
if rtn_buff:
return self.raw_buff
def write_read(self, data='', follow=False, kb=False):
if not follow:
if not kb:
try:
self.loop.run_until_complete(
self.as_write_read_waitp(data))
except Exception as e:
print(e)
else:
asyncio.ensure_future(self.as_write_read_waitp(data),
loop=self.loop)
# wait here until there is raw_buff
else:
if not kb:
try:
self.loop.run_until_complete(
self.as_write_read_follow(data))
except Exception as e:
print('Catch here0')
print(e)
else:
asyncio.ensure_future(self.as_write_read_follow(data,
rtn_buff=True),
loop=self.loop)
def send_recv_cmd(self, cmd, follow=False, kb=False):
data = self.fmt_data(cmd) # make fmt_data
n_bytes = len(data)
self.write_read(data=data, follow=follow, kb=kb)
return n_bytes
def write(self, cmd):
data = self.fmt_data(cmd, CR=False) # make fmt_data
n_bytes = len(data)
self.write_char_raw(key='RX', data=data)
return n_bytes
def read_all(self):
try:
return self.raw_buff
except Exception as e:
print(e)
return self.raw_buff
def flush(self):
flushed = 0
self.buff = self.read_all()
flushed += 1
self.buff = b''
def wr_cmd(self,
cmd,
silent=False,
rtn=True,
rtn_resp=False,
long_string=False,
follow=False,
kb=False):
self.output = None
self.response = ''
self.raw_buff = b''
self.buff = b''
self._cmdstr = cmd
# self.flush()
self.bytes_sent = self.send_recv_cmd(cmd, follow=follow,
kb=kb) # make fmt_datas
# time.sleep(0.1)
# self.buff = self.read_all()[self.bytes_sent:]
self.buff = self.read_all()
if self.buff == b'':
# time.sleep(0.1)
self.buff = self.read_all()
# print(self.buff)
# filter command
if follow:
silent = True
cmd_filt = bytes(cmd + '\r\n', 'utf-8')
self.buff = self.buff.replace(cmd_filt, b'', 1)
if self._traceback in self.buff:
long_string = True
if long_string:
self.response = self.buff.replace(b'\r', b'').replace(
b'\r\n>>> ', b'').replace(b'>>> ',
b'').decode('utf-8', 'ignore')
else:
self.response = self.buff.replace(b'\r\n', b'').replace(
b'\r\n>>> ', b'').replace(b'>>> ',
b'').decode('utf-8', 'ignore')
if not silent:
if self.response != '\n' and self.response != '':
print(self.response)
else:
self.response = ''
if rtn:
self.get_output()
if self.output == '\n' and self.output == '':
self.output = None
if self.output is None:
if self.response != '' and self.response != '\n':
self.output = self.response
if rtn_resp:
return self.output
async def as_wr_cmd(self,
cmd,
silent=False,
rtn=True,
rtn_resp=False,
long_string=False,
follow=False,
kb=False):
self.output = None
self.response = ''
self.raw_buff = b''
self.buff = b''
self._cmdstr = cmd
self.cmd_finished = False
# self.flush()
data = self.fmt_data(cmd) # make fmt_data
n_bytes = len(data)
self.bytes_sent = n_bytes
# time.sleep(0.1)
# self.buff = self.read_all()[self.bytes_sent:]
if follow:
self.buff = await self.as_write_read_follow(data, rtn_buff=True)
else:
self.buff = await self.as_write_read_waitp(data, rtn_buff=True)
if self.buff == b'':
# time.sleep(0.1)
self.buff = self.read_all()
# print(self.buff)
# filter command
if follow:
silent = True
cmd_filt = bytes(cmd + '\r\n', 'utf-8')
self.buff = self.buff.replace(cmd_filt, b'', 1)
if self._traceback in self.buff:
long_string = True
if long_string:
self.response = self.buff.replace(b'\r', b'').replace(
b'\r\n>>> ', b'').replace(b'>>> ',
b'').decode('utf-8', 'ignore')
else:
self.response = self.buff.replace(b'\r\n', b'').replace(
b'\r\n>>> ', b'').replace(b'>>> ',
b'').decode('utf-8', 'ignore')
if not silent:
if self.response != '\n' and self.response != '':
print(self.response)
else:
self.response = ''
if rtn:
self.get_output()
if self.output == '\n' and self.output == '':
self.output = None
if self.output is None:
if self.response != '' and self.response != '\n':
self.output = self.response
self.cmd_finished = True
if rtn_resp:
return self.output
def kbi(self, silent=True, pipe=None):
if pipe is not None:
self.wr_cmd(self._kbi, silent=silent)
bf_output = self.response.split('Traceback')[0]
traceback = 'Traceback' + self.response.split('Traceback')[1]
if bf_output != '' and bf_output != '\n':
pipe(bf_output)
pipe(traceback, std='stderr')
else:
self.wr_cmd(self._kbi, silent=silent)
async def as_kbi(self):
for i in range(1):
print('This is buff: {}'.format(self.raw_buff))
await asyncio.sleep(1, loop=self.loop)
data = bytes(self._kbi + '\r', 'utf-8')
await self.ble_client.write_gatt_char(self.writeables['RX'], data)
def banner(self, pipe=None, kb=False, follow=False):
self.wr_cmd(self._banner,
silent=True,
long_string=True,
kb=kb,
follow=follow)
if pipe is None and not follow:
print(self.response.replace('\n\n', '\n'))
else:
if pipe:
pipe(self.response.replace('\n\n', '\n'))
def reset(self, silent=True):
if not silent:
print('Rebooting device...')
self.write_char_raw(key='RX', data=self._reset)
if not silent:
print('Done!')
async def as_reset(self, silent=True):
if not silent:
print('Rebooting device...')
await self.as_write_char(self.writeables['RX'],
bytes(self._reset, 'utf-8'))
if not silent:
print('Done!')
return None
def get_output(self):
try:
self.output = ast.literal_eval(self.response)
except Exception as e:
if 'bytearray' in self.response:
try:
self.output = bytearray(
ast.literal_eval(
self.response.strip().split('bytearray')[1]))
except Exception as e:
pass
else:
if 'array' in self.response:
try:
arr = ast.literal_eval(
self.response.strip().split('array')[1])
self.output = array(arr[0], arr[1])
except Exception as e:
pass
pass