class PyBluetooth:
def __init__(self, name, serviceUUID):
self._bt = Bluetooth()
self.setAdvertisement(name=name, serviceUUID=serviceUUID)
self._bt.callback(trigger=Bluetooth.CLIENT_CONNECTED,
handler=self.onClientConnect,
arg=self)
self._bt.callback(trigger=Bluetooth.CLIENT_DISCONNECTED,
handler=self.onClientConnect,
arg=self)
self._services = {}
def __del__(self):
self._bt.disconnect_client()
def addService(self, uuid, characteristicNumber=0, isPrimary=False):
self._services[uuid] = self._bt.service(self.formatUUID(uuid),
nbr_chars=characteristicNumber,
isprimary=True)
return self._services[uuid]
def getService(self, uuid):
return self._services[uuid]
def setAdvertisement(self,
name,
manufacturerData=None,
serviceData=None,
serviceUUID=None):
self._name = name
if serviceUUID != None:
serviceUUID = self.formatUUID(serviceUUID)
self._bt.set_advertisement(name=name,
manufacturer_data=manufacturerData,
service_data=serviceData,
service_uuid=serviceUUID)
def startAdvertisement(self):
self._bt.advertise(True)
def stopAdvertisement(self):
self._bt.advertise(False)
def formatUUID(self, uuid):
uuid = uuid.encode().replace(b'-', b'')
tmp = binascii.unhexlify(uuid)
return bytes(reversed(tmp))
def onClientConnect(self):
events = self._bt.events()
print("[" + self._name + "]: Client connected")
pycom.heartbeat(False)
pycom.rgbled(0x110011)
def onClientDisconnect(self):
print("[" + self._name + "]: Client disconnected")
pycom.heartbeat(True)
class Blues:
# Initialization method.
def __init__(self):
print('Advertising Bluetooth...')
self.mBluetooth = Bluetooth()
self.mEvents = self.mBluetooth.events()
# self.mBluetooth.init([id=0, mode=Bluetooth.BLE, antenna=Bluetooth.INT_ANT, modem_sleep=False, pin=None, privacy=True, secure_connections=True, mtu=200])
self.mBluetooth.set_advertisement(
name='FiPy', service_uuid=2)
self.mBluetooth.callback(trigger=self.mBluetooth.CLIENT_CONNECTED |
self.mBluetooth.CLIENT_DISCONNECTED, handler=self.Connection)
self.mBluetooth.advertise(True)
# Create Service & Characteristic
self.CreateServChar()
self.mCharacteristic.callback(
trigger=self.mBluetooth.CHAR_WRITE_EVENT | self.mBluetooth.CHAR_READ_EVENT, handler=self.CharCallback)
# Connection method: Used as callback function to detect a BLE connection.
def Connection(self, zResponse):
self.mEvents = zResponse.events()
if self.mEvents & self.mBluetooth.CLIENT_CONNECTED:
print("Client connected")
elif self.mEvents & self.mBluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
def CreateServChar(self):
# Create service and characteristic
self.mService = self.mBluetooth.service(
uuid=3, isprimary=True)
self.mCharacteristic = self.mService.characteristic(
uuid=31, properties=self.mBluetooth.PROP_WRITE | self.mBluetooth.PROP_READ, value=6)
def CharCallback(self, chr, zResponse):
self.mEvents, value = zResponse
if self.mEvents & self.mBluetooth.CHAR_READ_EVENT:
print("Read from Char = {}".format(value))
if self.mEvents & self.mBluetooth.CHAR_WRITE_EVENT:
print("Written to Char = {}".format(value))