Change visibility of some properties
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parent
5c06fc131a
commit
4f8b698a14
192
sem6000.py
192
sem6000.py
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@ -1,5 +1,4 @@
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from bluepy import btle
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import struct
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import time
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import uuid
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@ -13,9 +12,10 @@ class SEMSocket():
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frequency = 0
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mac_address = ""
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custom_service = None
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read_char = None
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write_char = None
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notify_char = None
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_read_char = None
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_write_char = None
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_notify_char = None
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_btle_device = None
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connected = False
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def __init__(self, mac, auto_reconnect_timeout = None):
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@ -27,92 +27,6 @@ class SEMSocket():
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# initial connection may fail. It is up to the code what to do
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pass
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class NotConnectedException(Exception):
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pass
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class BTLEMessage():
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MAGIC_START = bytearray([0x0f])
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MAGIC_END = bytearray([0xff, 0xff])
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__data = bytearray()
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__cmd = bytearray(1) # cmd cannot be empty
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__payload = bytearray()
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def __init__(self, btle_device, cmd=bytearray(), payload=bytearray()):
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self.__btle_device = btle_device
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self.cmd = cmd
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self.payload = payload
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@property
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def cmd(self):
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return self.__cmd
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@cmd.setter
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def cmd(self, cmd):
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self.__data = self.MAGIC_START + bytearray(1) + cmd + self.payload + bytearray(1) + self.MAGIC_END
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self.__cmd = cmd
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self.__calc_length()
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self.__calc_checksum()
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@property
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def payload(self):
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return self.__payload
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@payload.setter
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def payload(self, payload):
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self.__data = self.MAGIC_START + bytearray(1) + self.cmd + payload + bytearray(1) + self.MAGIC_END
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self.__payload = payload
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self.__calc_length()
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self.__calc_checksum()
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def __calc_checksum(self):
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checksum = 1
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for i in range(2, self.__data[1] + 2):
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checksum += self.__data[i]
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self.__data[-3] = checksum & 0xff
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def __calc_length(self):
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self.__data[1] = 1 + len(self.__payload) + 1 # cmd + payload + checksum
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def send(self):
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if not self.__btle_device.connected:
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self.__btle_device.reconnect(self.__btle_device.auto_reconnect_timeout)
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self.__btle_device.write_char.write(self.__data, True)
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self.__btle_device.btle_device.waitForNotifications(5)
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class BTLEHandler(btle.DefaultDelegate):
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def __init__(self, btle_device):
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btle.DefaultDelegate.__init__(self)
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self.btle_device = btle_device
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def handleNotification(self, cHandle, data):
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message_type = data[2]
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if message_type == 0x00:
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if data[4] == 0x01:
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print("Checksum error!")
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else:
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print("Unknown error:", data)
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elif message_type == 0x03: #switch toggle
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print("Switch toggled")
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self.btle_device.getStatus()
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elif message_type == 0x04: #status related data
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self.btle_device.voltage = data[8]
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self.btle_device.current = (data[9] << 8 | data[10]) / 1000
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self.btle_device.power = (data[5] << 16 | data[6] << 8 | data[7]) / 1000
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self.btle_device.frequency = data[11]
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self.btle_device.powered = bool(data[4])
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elif message_type == 0x17:
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if data[5] == 0x00 or data[5] == 0x01:
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if not data[4]:
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print("Login successful")
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else:
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print("Login failed")
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else:
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print("5th byte of login-response is > 1:", data)
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else:
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print ("Unknown message from Handle: 0x" + format(cHandle,'02X') + " Value: "+ format(data))
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def getStatus(self):
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#15, 5, 4, 0, 0, 0, 5, -1, -1
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cmd = bytearray([0x04])
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@ -164,14 +78,14 @@ class SEMSocket():
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def __reconnect(self):
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try:
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self.btle_device = btle.Peripheral(self.mac_address,addrType=btle.ADDR_TYPE_PUBLIC,iface=0)
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self.btle_handler = self.BTLEHandler(self)
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self._btle_device = btle.Peripheral(self.mac_address,addrType=btle.ADDR_TYPE_PUBLIC,iface=0)
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self._btle_handler = self.BTLEHandler(self)
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self.custom_service = self.btle_device.getServiceByUUID(0xfff0)
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self.read_char = self.custom_service.getCharacteristics("0000fff1-0000-1000-8000-00805f9b34fb")[0]
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self.write_char = self.custom_service.getCharacteristics("0000fff3-0000-1000-8000-00805f9b34fb")[0]
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self.notify_char = self.custom_service.getCharacteristics("0000fff4-0000-1000-8000-00805f9b34fb")[0]
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self.btle_device.setDelegate(self.btle_handler)
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self._custom_service = self._btle_device.getServiceByUUID(0xfff0)
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self._read_char = self._custom_service.getCharacteristics("0000fff1-0000-1000-8000-00805f9b34fb")[0]
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self._write_char = self._custom_service.getCharacteristics("0000fff3-0000-1000-8000-00805f9b34fb")[0]
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self._notify_char = self._custom_service.getCharacteristics("0000fff4-0000-1000-8000-00805f9b34fb")[0]
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self._btle_device.setDelegate(self._btle_handler)
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except btle.BTLEException as e:
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self.connected = False
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else:
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@ -212,4 +126,88 @@ class SEMSocket():
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# self.GetSynConfig()
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# #self.GetSN()
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class NotConnectedException(Exception):
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pass
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class BTLEMessage():
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MAGIC_START = bytearray([0x0f])
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MAGIC_END = bytearray([0xff, 0xff])
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__data = bytearray()
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__cmd = bytearray(1) # cmd cannot be empty
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__payload = bytearray()
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def __init__(self, btle_device, cmd=bytearray(), payload=bytearray()):
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self.__btle_device = btle_device
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self.__cmd = cmd
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self.__payload = payload
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@property
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def cmd(self):
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return self.__cmd
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@cmd.setter
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def cmd(self, cmd):
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self.__data = self.MAGIC_START + bytearray(1) + cmd + self.__payload + bytearray(1) + self.MAGIC_END
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self.__cmd = cmd
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self.__calc_length()
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self.__calc_checksum()
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@property
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def payload(self):
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return self.__payload
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@payload.setter
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def payload(self, payload):
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self.__data = self.MAGIC_START + bytearray(1) + self.__cmd + payload + bytearray(1) + self.MAGIC_END
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self.__payload = payload
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self.__calc_length()
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self.__calc_checksum()
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def __calc_checksum(self):
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checksum = 1
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for i in range(2, self.__data[1] + 2):
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checksum += self.__data[i]
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self.__data[-3] = checksum & 0xff
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def __calc_length(self):
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self.__data[1] = 1 + len(self.__payload) + 1 # cmd + payload + checksum
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def send(self):
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if not self.__btle_device.connected:
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self.__btle_device.reconnect(self.__btle_device.auto_reconnect_timeout)
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self.__btle_device._write_char.write(self.__data, True)
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self.__btle_device._btle_device.waitForNotifications(5)
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class BTLEHandler(btle.DefaultDelegate):
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def __init__(self, btle_device):
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btle.DefaultDelegate.__init__(self)
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self.__btle_device = btle_device
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def handleNotification(self, cHandle, data):
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message_type = data[2]
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if message_type == 0x00:
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if data[4] == 0x01:
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print("Checksum error!")
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else:
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print("Unknown error:", data)
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elif message_type == 0x03: #switch toggle
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print("Switch toggled")
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self.__btle_device.getStatus()
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elif message_type == 0x04: #status related data
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self.__btle_device.voltage = data[8]
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self.__btle_device.current = (data[9] << 8 | data[10]) / 1000
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self.__btle_device.power = (data[5] << 16 | data[6] << 8 | data[7]) / 1000
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self.__btle_device.frequency = data[11]
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self.__btle_device.powered = bool(data[4])
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elif message_type == 0x17:
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if data[5] == 0x00 or data[5] == 0x01:
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if not data[4]:
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print("Login successful")
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else:
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print("Login failed")
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else:
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print("5th byte of login-response is > 1:", data)
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else:
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print ("Unknown message from Handle: 0x" + format(cHandle,'02X') + " Value: "+ format(data))
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