def run(self):
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='LoPy',
service_uuid=b'1234567890123456')
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=self.conn_cb)
bluetooth.advertise(True)
#Create a new service on the internal GATT server. Returns a object of type BluetoothServerService.
srv1 = bluetooth.service(
uuid=self.uuid2bytes('00001819-0000-1000-8000-00805f9b34fb'),
isprimary=True)
#Creates a new characteristic on the service. Returns an object of the class GATTSCharacteristic
self.char1 = srv1.characteristic(
uuid=self.uuid2bytes('00002a67-0000-1000-8000-00805f9b34fb'),
properties=Bluetooth.PROP_BROADCAST | Bluetooth.PROP_INDICATE,
value=1)
#Creates a callback that will be executed when any of the triggers occurs
char1_cb = self.char1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.char1_cb_handler)
class bluetooth:
def __init__(self):
self.bluetooth = Bluetooth()
self.bluetooth.set_advertisement(name=ble_device_name,
manufacturer_data=manufacturer_data,
service_data=None,
service_uuid=private_UUID)
self.bluetooth.advertise(True)
#service_acc
self.service_acc = self.bluetooth.service(uuid=service_acc_UUID,
isprimary=True,
nbr_chars=3,
start=True)
self.character_acc_x = self.service_acc.characteristic(
uuid=character_acc_x_UUID, properties=None, value=33)
self.character_acc_y = self.service_acc.characteristic(
uuid=character_acc_y_UUID, properties=None, value=34)
self.character_acc_z = self.service_acc.characteristic(
uuid=character_acc_z_UUID, properties=None, value=35)
def updateValue(self, accelerate=None, gps=None):
if (accelerate != None):
float_bytes = struct.pack('f', accelerate[0])
#print(float_bytes)
print(accelerate[0], accelerate[1], accelerate[2])
total_bytes = b''
total_bytes = struct.pack('<f', accelerate[0]) + struct.pack(
'<f', accelerate[1]) + struct.pack(
'<f', accelerate[2]) + struct.pack(
'<f', gps[0]) + struct.pack('<f', gps[1])
self.character_acc_x.value(total_bytes)
self.character_acc_y.value(total_bytes)
self.character_acc_z.value(total_bytes)
class ble:
def __init__(self):
self.bluetooth = Bluetooth()
self.bluetooth.set_advertisement(name=ble_device_name,
manufacturer_data=manufacturer_data,
service_data=None,
service_uuid=private_UUID)
self.bluetooth.advertise(True)
#service
self.service_acc = self.bluetooth.service(uuid=service_acc_UUID,
isprimary=True,
nbr_chars=3,
start=True)
self.character_acc_x = self.service_acc.characteristic(
uuid=character_acc_x_UUID, properties=None, value=33)
self.character_acc_y = self.service_acc.characteristic(
uuid=character_acc_y_UUID, properties=None, value=34)
self.character_acc_z = self.service_acc.characteristic(
uuid=character_acc_z_UUID, properties=None, value=35)
def updateValue(self, accelerate=None):
if (accelerate != None):
self.character_acc_x.value(accelerate[0])
self.character_acc_y.value(accelerate[1])
self.character_acc_z.value(accelerate[2])
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)
def __init__(self, mesh_mac):
self.status = {
'connected' : False
}
bluetooth = Bluetooth(modem_sleep=False)
bluetooth.set_advertisement(name='PyGo (mac:' + str(mesh_mac) + ')', service_uuid=0xec00)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED, handler=self.conn_cb)
bluetooth.advertise(True)
srv_rx = bluetooth.service(uuid=0xec00, isprimary=True)
self.chr_rx = srv_rx.characteristic(uuid=0xec0e, value=0)
srv_tx = bluetooth.service(uuid=0xed00, isprimary=True)
self.chr_tx = srv_tx.characteristic(uuid=0xed0e, value=0)
self.unpacker = None
def _init(self):
self.status = {'connected': False}
bluetooth = Bluetooth(modem_sleep=False)
adv_name = self.ble_name
bluetooth.set_advertisement(name=adv_name, service_uuid=0xec00)
print("BLE name:", adv_name)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=self.conn_cb)
bluetooth.advertise(True)
srv_rx = bluetooth.service(uuid=0xec00, isprimary=True)
self.chr_rx = srv_rx.characteristic(uuid=0xec0e, value=0)
srv_tx = bluetooth.service(uuid=0xed00, isprimary=True)
self.chr_tx = srv_tx.characteristic(uuid=0xed0e, value=0)
self.unpacker = None
def BLEServer():
###### Second, set up BLE server service ######
pycom.heartbeat(False)
bluetooth = Bluetooth() #create a bluetooth object
bluetooth.set_advertisement(name='LoPyServer' + str(globalvar.device_id),
service_uuid=b'3333333333333333')
#using callback conn_cb to check client's connection
##Function: conn_cb(callback for bluetooth object events checking)
##Description:check there is any client connected to the service
def conn_cb(bt_o):
events = bt_o.events(
) #using events to check if there is any client connected to the service
if events & Bluetooth.CLIENT_CONNECTED: #2
print("Client connected")
pycom.rgbled(0x007f00) # green
elif events & Bluetooth.CLIENT_DISCONNECTED: #4
bt_o.disconnect_client()
print("Client disconnected")
pycom.rgbled(0x7f0000) # red
time.sleep(3)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
#set up BLE service
srv1 = bluetooth.service(uuid=b'3333333333333333', isprimary=True)
#set up service character
chr1 = srv1.characteristic(uuid=b'3333333333333333',
properties=Bluetooth.PROP_READ
| Bluetooth.PROP_WRITE,
value=5)
#char1_read_counter = 0
def char1_cb_handler(chr):
#global char1_read_counter
#char1_read_counter += 1
global BLEConnectionCounter
events = chr.events()
print('events is ' + str(events))
if events & Bluetooth.CHAR_WRITE_EVENT: #16
print("Write request with value = {}".format(chr.value()))
elif events & Bluetooth.CHAR_READ_EVENT: #8
#modify here to send its device_id to other clients
BLEConnectionCounter += 1
return str(globalvar.device_id) + ' ' + str(BLEConnectionCounter)
#using the callback to send the data to other clients
chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char1_cb_handler)
def BlueToothFun():
global deviceID
global connectionCounter
#Also act as a server
pycom.heartbeat(False)
bluetooth = Bluetooth() #create a bluetooth object
bluetooth.set_advertisement(name='LoPyServer1',
service_uuid=b'1234567890123456')
#using callback conn_cb to check client's connection
##Function: conn_cb(callback for bluetooth object events checking)
##Description:check there is any client connected to the service
def conn_cb(bt_o):
events = bt_o.events(
) #using events to check if there is any client connected to the service
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
pycom.rgbled(0x007f00) # green
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
pycom.rgbled(0x7f0000) # red
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
#
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=b'1234567890123456', isprimary=True)
chr1 = srv1.characteristic(uuid=b'ab34567890123456', value=5)
#char1_read_counter = 0
def char1_cb_handler(chr):
#global char1_read_counter
#char1_read_counter += 1
global connectionCounter
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
print("Write request with value = {}".format(chr.value()))
else:
#modify here to send message to other clients
#connectionCounter += 1
return str(deviceID)
#using the callback to send the data to other clients
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char1_cb_handler)
'''srv2 = bluetooth.service(uuid=1234, isprimary=True)
def startSending(dataList: list, callback, shouldClear):
global data
global call
global bluetooth
global clear
clear = shouldClear
call = callback
pycom.rgbled(0x70000ff)
data = dataList
print("data" + str(data))
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='Loy', service_uuid=b'1234567890123456')
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=b'serviceA90123456', isprimary=True)
srv2 = bluetooth.service(uuid=b'serviceB90123456', isprimary=True)
srv3 = bluetooth.service(uuid=b'serviceC90123456', isprimary=True)
srv4 = bluetooth.service(uuid=b'serviceD90123456', isprimary=True)
chr1 = srv1.characteristic(uuid=b'temp567890123456', value="")
chr2 = srv2.characteristic(uuid=b'light67890123456', value="")
chr3 = srv3.characteristic(uuid=b'time567890123456', value="")
chr4 = srv4.characteristic(uuid=b'id34567890123456', value="")
chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char1_cb_handler)
chr2.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char2_cb_handler)
chr3.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char3_cb_handler)
chr4.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char4_cb_handler)
def bt_check(self):
av = AV()
av.blue()
bluetooth = Bluetooth()
bluetooth.set_advertisement(name=BLE_DEVICE_NAME,
manufacturer_data=BLE_DEVICE_NAME,
service_uuid=0001)
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=0001, isprimary=True)
chr1 = srv1.characteristic(uuid=0002, value=5)
if self.config["state"] == 0:
lock_state = 0
else:
lock_state = 1
def char1_cb_handler(chr):
if chr.value() == bytes(BLE_SECRET_KEY, "utf-8"):
if self.config["state"] == 0:
self.lock()
av.locked()
return 'good'
else:
self.unlock()
av.unlocked()
return 'good'
srv2 = bluetooth.service(uuid=0003, isprimary=True)
chr2 = srv2.characteristic(uuid=0004, value=lock_state)
char1_cb = chr2.callback(trigger=Bluetooth.CHAR_WRITE_EVENT,
handler=char1_cb_handler)
time.sleep(20)
av.off()
bluetooth.advertise(False)
def connect(self):
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='Blynk')
def conn_cb(bt):
events = bt.events()
if events & Bluetooth.CLIENT_CONNECTED:
self.bout = b''
print("Client connected")
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
BlynkProtocol.disconnect(self)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
nus = bluetooth.service(
uuid=unhex('6E400001-B5A3-F393-E0A9-E50E24DCCA9E'),
isprimary=True,
nbr_chars=2)
self.rx = nus.characteristic(
uuid=unhex('6E400002-B5A3-F393-E0A9-E50E24DCCA9E'),
properties=Bluetooth.PROP_WRITE | Bluetooth.PROP_WRITE_NR,
value='')
self.tx = nus.characteristic(
uuid=unhex('6E400003-B5A3-F393-E0A9-E50E24DCCA9E'),
properties=Bluetooth.PROP_READ | Bluetooth.PROP_NOTIFY,
value='')
bluetooth.advertise(True)
def rx_cb(chr):
data = chr.value()
print('>', data)
self.process(bytes(data))
def tx_subsc(chr):
print("Client subscribed", chr)
BlynkProtocol.connect(self, login=False)
self.tx.callback(trigger=Bluetooth.CHAR_SUBSCRIBE_EVENT,
handler=tx_subsc)
self.rx.callback(trigger=Bluetooth.CHAR_WRITE_EVENT, handler=rx_cb)
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))
- 3. It receives the bluetooth cmds to open/close back door throw proximity sensor
"""
# Broadcasting BLE and stablish connection
from network import Bluetooth
import time
import machine
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='PyWagenHub',
manufacturer_data='manufacturer data',
service_uuid=b'1234567890123456')
service = bluetooth.service(b'1234567890123457',
isprimary=True,
nbr_chars=1,
start=True)
def conn_cb(bt_o):
events = bt_o.events(
) # This method returns the flags and clears the internal registry
print(events)
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
print("Start State:{} ".format(start_state))
main_protocol_thread = _thread.start_new_thread(protocol_state_machine,
(start_state, 1))
bluetooth = Bluetooth()
service_uuid = util.uuid2bytes('00002A6E00001000800000805F9B34FB')
bluetooth.set_advertisement(name='Comfort', service_uuid=service_uuid)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=service_uuid, isprimary=True, nbr_chars=2)
heater_ch = srv1.characteristic(
uuid=util.uuid2bytes('00001AEF00001000800000805F9B34FB'),
properties=Bluetooth.PROP_NOTIFY,
value=0)
controller_ch = srv1.characteristic(
uuid=util.uuid2bytes('00001CDE00001000800000805F9B34FB'),
properties=Bluetooth.PROP_WRITE | Bluetooth.PROP_READ,
value=0)
heater_cb = heater_ch.callback(trigger=Bluetooth.CHAR_READ_EVENT,
handler=heater_cb_handler)
controller_cb = controller_ch.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
else:
if True:
#if char1_read_counter < 3:
print('Read request on char 1')
else:
return 'ABC DEF'
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='gpy4gcam', service_uuid=1)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=1, isprimary=True, start=False)
cv = '2020-01-01 00:00:00'
chr1 = srv1.characteristic(uuid=2, value=cv)
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char1_cb_handler)
srv1.start()
def chr1_update(Now):
# rtc = machine.RTC()
# Now = rtc.now()
strDateTime = '{:04d}-{:02d}-{:02d} {:02d}:{:02d}:{:02d}'.format(
Now[0] + 1, Now[1], Now[2], Now[3], Now[4], Now[5])
# srv1.stop()
# chr1 = srv1.characteristic(uuid=2, value=strDateTime)
print("init")
bt = Bluetooth()
bt.set_advertisement(
name='Pycom BT test server5',
service_uuid=666,
manufacturer_data=b'deadbeef',
service_data=b'cafebabe'
) # bytes([0xC0, 0x01, 0xD0, 0x0D, 0xC0, 0x01, 0xD0, 0x0D, 0xC0, 0x01, 0xD0, 0x0D, 0xC0, 0x01, 0xD0, 0x0D, ])) # b'1234567890123456')
bt.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
print("service 1")
srv1 = bt.service(
isprimary=True, uuid=1
) # bytes([0xCA, 0xFE, 0xBA, 0xBE, 0xCA, 0xFE, 0xBA, 0xBE, 0xCA, 0xFE, 0xBA, 0xBE, 0xCA, 0xFE, 0xBA, 0xBE, ]))
chr11 = srv1.characteristic(uuid=11, value=87)
chr11.callback(trigger=Bluetooth.CHAR_WRITE_EVENT | Bluetooth.CHAR_READ_EVENT,
handler=char11_cb_handler)
chr12 = srv1.characteristic(uuid=12, value=99)
# chr13 = srv1.characteristic(uuid=13, value=33)
print("service 2")
srv2 = bt.service(
isprimary=True,
uuid=2,
)
chr21 = srv2.characteristic(uuid=4567, value=9) # 0x1234)
chr21.callback(trigger=Bluetooth.CHAR_READ_EVENT, handler=char21_cb_handler)
# chr22 = srv2.characteristic(uuid=89, value=2) # 0x1234)
# Function to caculate the pwm value for the angle given.
def setServoPwn(angle):
servo.duty_cycle(
((angle / 180) * 0.05) +
0.05) # calculate the right value for PWM based on the angle given
bluetooth = Bluetooth() # Get a bluetooth instance
bluetooth.set_advertisement(name='FyPi') # Set the name
bluetooth.callback(
trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb) # set up the callbacks for connect and disconnect events
bluetooth.advertise(True) # advertise the device
print("Started BLE")
srv1 = bluetooth.service(
uuid=0x1815, isprimary=True
) # set up the service to display the current angle of the servo
chr1 = srv1.characteristic(
uuid=0x2763,
value=currentAngle) # set up the characteristic to get the server angle
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT,
handler=char1_cb_handler
) # set up the callback when writen to characteristic
pwm = PWM(0, frequency=50) # make a pwm provider
servo = pwm.channel(0, pin='P23',
duty_cycle=0.0) # Setup the pwm for the servo
setServoPwn(currentAngle) # Set the servo the the initial angle
class BLE():
# This class initializes the BLE mode in the fipy and also checks
# if the BLE mode param is on or not
def __init__(self, name, uuid):
self.ble = Bluetooth()
self.ble.set_advertisement(name=name, service_uuid=uuid)
self.setup()
def connect_cb(self, bt_o):
# callback for connection
print('enter connect_cb\n')
events = bt_o.events()
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
self.string = ""
def setup(self):
# sets up all the services and characteristics
print("Enter Setup\n")
self.ble.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED, handler=self.connect_cb)
self.ble.advertise(True)
# main service switches
config_service = self.ble.service(uuid=0xfff0, isprimary=True, nbr_chars=1)
# main service
self.message = config_service.characteristic(uuid=0xfff0, value=0)
# nvram declarations
self.string = ""
pycom.nvs_set('id', 0)
pycom.nvs_set('mode', 0)
pycom.nvs_set('wifi', 0)
pycom.nvs_set('mqtt', 0)
pycom.nvs_set('lora', 0)
pycom.nvs_set('ssid', 0)
pycom.nvs_set('pass', 0)
pycom.nvs_set('server', 0)
pycom.nvs_set('port', 0)
pycom.nvs_set('appSkey', 0)
pycom.nvs_set('nwkSkey', 0)
pycom.nvs_set('temp_sensor', 0)
pycom.nvs_set('temp_f', 0)
pycom.nvs_set('accl_sensor', 0)
pycom.nvs_set('accl_f', 0)
pycom.nvs_set('alt_sensor', 0)
pycom.nvs_set('alt_f', 0)
pycom.nvs_set('light_sensor', 0)
pycom.nvs_set('light_f', 0)
# callbacks to deploy_handler which will use the switch_dict to switch between chars
msg_cb = self.message.callback(trigger=Bluetooth.CHAR_WRITE_EVENT | Bluetooth.CHAR_READ_EVENT, handler=self.msg_handler)
# restart details callback)
print("waiting for callback")
def msg_handler(self,chr):
print("Entered msg_handler\n")
# handles write and read requests from the client
print(chr.value())
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
msg = chr.value().decode('utf-8')
self.string += msg
print("string is" + self.string)
if msg[len(msg)-2:] == '>e':
self.list = []
self.list = self.string[:len(self.string)-2].split(";")
msg_list = msg[1:len(msg)-2].split(";")
print(self.list)
self.execute(self.list)
return # device should reset after this
elif events & Bluetooth.CHAR_READ_EVENT:
NvsStore('deveui', binascii.hexlify(LoRa().mac()).decode('utf-8'))
return binascii.hexlify(LoRa().mac()).decode('utf-8')
def execute(self, msg_list):
for x in range(len(msg_list)):
if msg_list[x] == '':
msg_list[x] = '0'
print(msg_list)
print("count" + str(len(msg_list)))
if len(msg_list) == 15:
NvsStore('id', msg_list[0])
if msg_list[2] == "1":
NvsStore('wifi', msg_list[2])
NvsStore('ssid', msg_list[5])
NvsStore('pass', msg_list[6])
else:
pycom.nvs_set('wifi', 0)
if msg_list[3] == "1":
NvsStore('mqtt', msg_list[3])
NvsStore('server', msg_list[7])
NvsStore('port', msg_list[8])
else:
pycom.nvs_set('mqtt', 0)
if msg_list[4] == "1":
NvsStore('lora', msg_list[4])
NvsStore('appskey', msg_list[9])
NvsStore('nwkskey', msg_list[10])
else:
pycom.nvs_set('mqtt', 0)
if msg_list[11] != 0:
NvsStore('temp_sensor', '1')
NvsStore('temp_f', msg_list[11])
else:
pycom.nvs_set('temp_sensor', 0)
if msg_list[12] != 0:
NvsStore('alt_sensor', '1')
NvsStore('alt_f', msg_list[12])
else:
pycom.nvs_set('alt_sensor', 0)
if msg_list[13] != 0:
NvsStore('accl_sensor', '1')
NvsStore('accl_f', msg_list[13])
else:
pycom.nvs_set('accl_sensor', 0)
if msg_list[14] != 0:
NvsStore('light_sensor', '1')
NvsStore('light_f', msg_list[14])
else:
pycom.nvs_set('light_sensor', 0)
if int(msg_list[2]) + int(msg_list[4]) == 0:
print("YAS")
NvsStore('mode', 0)
NvsStore('mode', msg_list[1])
pycom.rgbled(0xffffff)
time.sleep(2)
pycom.rgbled(0x000000)
print("ENTERING DEPLOY MODE IN 5 seconds")
time.sleep(5)
machine.reset()
else:
print("INCORRECT DATA STREAM")
self.string = ""
from network import Bluetooth
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='FiPy', service_uuid=0xffffff01234)
def conn_cb (bt_o):
events = bt_o.events()
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED, handler=conn_cb)
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=0xfff0, isprimary=True)
chr1 = srv1.characteristic(uuid=0x1000, value="ssid")
def char1_cb_handler(chr):
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
chr1.value(chr.value())
print("Write request with value = {}".format(chr.value()))
else:
return chr1.value()
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT | Bluetooth.CHAR_READ_EVENT, handler=char1_cb_handler)
def BLEServer():
bluetooth = Bluetooth() #create a bluetooth object
bluetooth.set_advertisement(name=settings['deviceid'],
service_uuid=settings['filipsblue_service'])
#using callback conn_cb to check client's connection
##Function: conn_cb(callback for bluetooth object events checking)
##Description:check there is any client connected to the service
def conn_cb(bt_o):
events = bt_o.events(
) #using events to check if there is any client connected to the service
global isConnected
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
isConnected = True
pycom.rgbled(0x007f00) # green
elif events & Bluetooth.CLIENT_DISCONNECTED:
bt_o.disconnect_client(
) # in this way other client will have the chance to connect?
print("Client disconnected")
isConnected = False
pycom.rgbled(0x7f0000) # red
time.sleep(3)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
print("Started BLE advertising")
###########################
# BLE Ambient Sensor Service
###########################
ambient_sensor_service = bluetooth.service(
uuid=settings['ambient_sensor_service'], isprimary=True, nbr_chars=2
) # nbr_chars indicates the number of characteristics of this service
#set up service characteristic
ambient_sensor_chr = ambient_sensor_service.characteristic(
uuid=settings['ambient_sensor_chr'],
properties=Bluetooth.PROP_NOTIFY,
value='NA')
ambient_sensor_sample_interval_chr = ambient_sensor_service.characteristic(
uuid=settings['ambient_sensor_sample_interval_chr'],
properties=Bluetooth.PROP_WRITE,
value='NA')
def ambient_sensor_sample_interval_cb_handler(chr):
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
print("ambient_sensor_sample_interval_cb_handler : Raw value: {}".
format(chr.value()))
try:
sample_interval = float(chr.value())
ambient_sensor.set_sample_interval(sample_interval)
print("Updated ambient sampling rate: {}".format(
sample_interval))
except:
print(
"ambient_sensor_sample_interval_cb_handler : Invalid value. Expected type float."
)
pass
ambient_sensor_sample_interval_chr.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT,
handler=ambient_sensor_sample_interval_cb_handler)
ambient_sensor_service.start()
def ble_ambient_sensor_callback(lux_sample):
print("Should we notify? : " + str(isConnected))
# Can take an integer, a string or a bytes object. Can only be called if there clients are connected?
# Should trigger notification if a client has registered for notifications
if isConnected:
try:
ambient_sensor_chr.value(
str(lux_sample)) # Send the notification over BLE
print("Emitted lux value: " + str(lux_sample))
except:
# Some error happened during notification.
# Most likely no client is connected to receive notifications.
# Disconnect bluetooth communication.
bluetooth.disconnect_client()
ambient_sensor = AmbientSensor(
callback_on_emit=ble_ambient_sensor_callback)
_thread.start_new_thread(ambient_sensor.start_sampling,
()) # Start sampling the ambient sensor
###########################
# BLE Light Source Service
###########################
light_source_service = bluetooth.service(
uuid=settings['light_source_service'], isprimary=True)
#set up service characteristic
light_source_chr = light_source_service.characteristic(
uuid=settings['light_source_chr'],
properties=Bluetooth.PROP_WRITE,
value='\xff\xff\xff')
def light_source_chr_cb_handler(chr):
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
colorsArray = chr.value()
try:
print("light_source_chr_cb_handler : Raw value: {}".format(
chr.value()))
red = colorsArray[0]
green = colorsArray[1]
blue = colorsArray[2]
print("Set LED with value = {} {} {}".format(red, green, blue))
set_LED_rgb(red, green, blue)
except:
print(
"light_source_chr_cb_handler : Invalid value. Expected byte array of length 3."
)
pass
light_source_chr.callback(trigger=Bluetooth.CHAR_WRITE_EVENT,
handler=light_source_chr_cb_handler)
light_source_service.start()
to_send = []
rx_data = []
enable_send_to_lora = False
poll_again = True
message_sent_to_lora = False
msg = b''
cpt = 0
length_totale = 0
######################### Initialisation du bluetooth ##########################
bluetooth = Bluetooth()
bluetooth.set_advertisement(name=NAME, service_uuid=service_uuid)
bluetooth.advertise(True)
# Definition du service et des caracteristiques
service = bluetooth.service(uuid=service_uuid, nbr_chars=4, isprimary=True)
char_send = service.characteristic(uuid=char_send_uuid,
properties=Bluetooth.PROP_WRITE)
char_sent = service.characteristic(uuid=char_sent_uuid,
properties=Bluetooth.PROP_NOTIFY)
char_receive = service.characteristic(uuid=char_receive_uuid,
properties=Bluetooth.PROP_NOTIFY)
char_lora_ready = service.characteristic(uuid=char_lora_ready_uuid,
properties=Bluetooth.PROP_NOTIFY
| Bluetooth.PROP_READ,
value=b'\x00')
def test(*arg):
msg = b'test'
type = b'\x01'
from network import Bluetooth
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='LoPy', service_uuid=0x180F)
def conn_cb (bt_o):
events = bt_o.events()
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED, handler=conn_cb)
srv1 = bluetooth.service(uuid=0x180F, isprimary=True)
chr1 = srv1.characteristic(uuid=0x2A19, value='50')
srv2 = bluetooth.service(uuid=0x180A, isprimary=True)
chr2 = srv2.characteristic(uuid=0x2A29, value='name string')
bluetooth.advertise(True)
def char1_cb_handler(chr):
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
print("Write request on char1 with value = {}".format(chr.value()))
else:
print("Read request on char1 value = {}".format(chr.value()))
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT | Bluetooth.CHAR_READ_EVENT, handler=char1_cb_handler)
#
# mkfifo ~/myfifo
# while sleep 1; do socat /dev/ttyACM1,b115200,echo=0,raw ~/myfifo; done &
# minicom -o -D ~/myfifo
bluetooth = Bluetooth()
bluetooth.set_advertisement(
name='gpy4gcam',
service_uuid=uuid2bytes('d9293538-3087-11ea-aec2-2e728ce88125'))
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
# srv1 = bluetooth.service(uuid=uuid2bytes('d9293538-3087-11ea-aec2-2e728ce88125'), isprimary=True, nbr_chars=2)
srv1 = bluetooth.service(uuid=0xAA1, isprimary=True, nbr_chars=2)
cv = '2020-01-01 00:00:00'
chr1 = srv1.characteristic(uuid=0xaaa1, value=cv)
chr2 = srv1.characteristic(uuid=0xaaa2, value=9)
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char1_cb_handler)
char2_cb = chr2.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=char2_cb_handler)
# srv1.start()
def chr1_update(Now):
# rtc = machine.RTC()
#alkutehtävät käynnistyksessä
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='Kuormanohjausyksikkö', service_uuid=b'1234567890123456')
def conn_cb (bt_o):
global connected
events = bt_o.events() # this method returns the flags and clears the internal registry
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
connected = True
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
connected = False
#Create service and characteristic
wifiService = bluetooth.service(uuid='0000000000000000', isprimary=True)
wifiChara = wifiService.characteristic(uuid='0000000000000002', properties=Bluetooth.PROP_BROADCAST | Bluetooth.PROP_WRITE)
infoService = bluetooth.service(uuid='0000000000000001',isprimary=True)
infoChara = infoService.characteristic(uuid='0000000000000003',properties=Bluetooth.PROP_BROADCAST | Bluetooth.PROP_READ,value=0)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED, handler=conn_cb)
wifiChara.callback(trigger=Bluetooth.CHAR_WRITE_EVENT, handler=receiveWifiInfo)
infoChara.callback(trigger=Bluetooth.CHAR_READ_EVENT, handler=sendInfo)
connected = False
ssid = "aalto open"
password = ""
proceed = False
[ssid,password]=openWifiInfo()
class BLE():
# This class initializes the BLE mode in the fipy and also checks
# if the BLE mode param is on or not
def __init__(self, name, uuid):
self.ble = Bluetooth()
self.ble.set_advertisement(name=name, service_uuid=uuid)
self.setup()
def connect_cb(self, bt_o):
# callback for connection
print('enter connect_cb\n')
events = bt_o.events()
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
def setup(self):
# sets up all the services and characteristics
print("Enter Setup\n")
self.ble.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=self.connect_cb)
self.ble.advertise(True)
# main service switches
boot_service = self.ble.service(uuid=0xfff0,
isprimary=True,
nbr_chars=5)
wifi_service = self.ble.service(uuid=0xfff1,
isprimary=True,
nbr_chars=2)
mqtt_service = self.ble.service(uuid=0xfff2,
isprimary=True,
nbr_chars=2)
lora_service = self.ble.service(uuid=0xfff3,
isprimary=True,
nbr_chars=3)
restart_service = self.ble.service(uuid=0xfff4,
isprimary=True,
nbr_chars=1)
#lte_service = self.ble.service(uuid=0xfff3, isprimary=True, nbr_chars=1)
misc_service = self.ble.service(uuid=0xfff5,
isprimary=True,
nbr_chars=4)
# characteristic / service declarations
self.id_f = boot_service.characteristic(uuid=0x01, value=0)
pycom.nvs_set('id', 0)
self.mode_f = boot_service.characteristic(uuid=0x02, value=0)
pycom.nvs_set('mode', 0)
# generic services to be added to boot service
self.wifi_f = boot_service.characteristic(uuid=0x03, value=0)
pycom.nvs_set('wifi', 0)
self.mqtt_f = boot_service.characteristic(uuid=0x04, value=0)
pycom.nvs_set('mqtt', 0)
self.lora_f = boot_service.characteristic(uuid=0x05, value=0)
pycom.nvs_set('lora', 0)
#self.lte_f = boot_service.characteristic(uuid=0x2002, value=0)
#pycom.nvs_set('lte', 0)
# restart declaration
self.restart_f = restart_service.characteristic(uuid=0x01, value=0)
# wifi_service chars
self.wifi_ssid = wifi_service.characteristic(uuid=0x01, value=0)
self.wifi_pass = wifi_service.characteristic(uuid=0x02, value=0)
# mqtt_service chars
self.mqtt_server = mqtt_service.characteristic(uuid=0x03, value=0)
self.mqtt_port = mqtt_service.characteristic(uuid=0x04, value=0)
# lora_service chars
self.lora_deveui = lora_service.characteristic(uuid=0x01, value=0)
self.lora_appSkey = lora_service.characteristic(uuid=0x02, value=0)
self.lora_nwkSkey = lora_service.characteristic(uuid=0x03, value=0)
# sensor_service chars -> light, pressure, humidity, temperature, altitude
self.temp_sensor = misc_service.characteristic(uuid=0x01, value=0)
self.alt_sensor = misc_service.characteristic(uuid=0x03, value=0)
self.accl_sensor = misc_service.characteristic(uuid=0x05, value=0)
self.light_sensor = misc_service.characteristic(uuid=0x07, value=0)
# callbacks to deploy_handler which will use the switch_dict to switch between chars
id_f_cb = self.id_f.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.deploy_handler)
mode_f_cb = self.mode_f.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.deploy_handler)
wifi_f_cb = self.wifi_f.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.deploy_handler)
mqtt_f_cb = self.mqtt_f.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.deploy_handler)
lora_f_cb = self.lora_f.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.deploy_handler)
#lte_f_cb = self.lte_f.callback(trigger=Bluetooth.CHAR_WRITE_EVENT | Bluetooth.CHAR_READ_EVENT, handler=self.deploy_handler)
# restart details callback
restart_f_cb = self.restart_f.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT, handler=self.restart_handler)
# wifi details callback
wifi_cb1 = self.wifi_ssid.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.wifi_handler)
wifi_cb2 = self.wifi_pass.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.wifi_handler)
print("Enter callback mqtt\n")
# mqtt details callback
mqtt_cb1 = self.mqtt_server.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.mqtt_handler)
mqtt_cb2 = self.mqtt_port.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.mqtt_handler)
# lora details callback
lora_cb1 = self.lora_deveui.callback(trigger=Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.CHAR_READ_EVENT,
handler=self.lora_handler)
lora_cb2 = self.lora_appSkey.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT, handler=self.lora_handler)
lora_cb3 = self.lora_nwkSkey.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT, handler=self.lora_handler)
# sensor details callback
temp_sensor_cb = self.temp_sensor.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT, handler=self.sensor_handler)
alt_sensor_cb = self.alt_sensor.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT, handler=self.sensor_handler)
accl_sensor_cb = self.accl_sensor.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT, handler=self.sensor_handler)
light_sensor_cb = self.light_sensor.callback(
trigger=Bluetooth.CHAR_WRITE_EVENT, handler=self.sensor_handler)
print("setup done/n")
def deploy_handler(self, chr):
print("Entered Deploy Handler\n")
# handles write and read requests from the client
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
val = chr.value().decode('utf-8')
print(val[0])
print(val)
if val[0] == '0':
self.id_f.value(val[1:])
NvsStore('id', val[1:])
if val[0] == '1':
self.mode_f.value(val[1])
NvsStore('mode', val[1])
elif val[0] == '2':
self.wifi_f.value(val[1])
NvsStore('wifi', val[1])
elif val[0] == '3':
self.mqtt_f.value(val[1])
NvsStore('mqtt', val[1])
elif val[0] == '4':
self.lora_f.value(val[1])
NvsStore('lora', val[1])
else:
pass
elif events & Bluetooth.CHAR_READ_EVENT:
return "REJECTED"
def wifi_handler(self, chr):
print("Wifi Handler\n")
# handles writing the wifi ssid and password
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
val = chr.value().decode("utf-8")
print(val)
if val[0] == '0':
self.wifi_ssid.value(val[1:])
x = val[1:]
NvsStore('ssid', x)
print(NvsExtract('ssid').retval())
elif val[0] == '1':
self.wifi_pass.value(val[1:])
NvsStore('pass', val[1:])
print(NvsExtract('pass').retval())
elif events & Bluetooth.CHAR_READ_EVENT:
try:
print("Connected to ssid: " + x)
except NameError:
print("not declared yet")
print("exit")
def lora_handler(self, chr):
# handles writing the lora deveui, appSkey and nwkSkey
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
val = chr.value().decode('utf-8')
if val[0] == '0':
NvsStore('deveui',
binascii.hexlify(LoRa().mac()).decode('utf-8'))
elif val[0] == '1':
self.lora_appSkey.value(val[1:])
NvsStore('appSkey', val[1:])
elif val[0] == '2':
self.lora_nwkSkey.value(val[1:])
NvsStore('nwkSkey', val[1:])
elif events & Bluetooth.CHAR_READ_EVENT:
return binascii.hexlify(LoRa().mac()).decode('utf-8')
def restart_handler(self, chr):
events = chr.events()
print("restart handler\n")
if events & Bluetooth.CHAR_WRITE_EVENT:
val = chr.value().decode("utf-8")
if val == b'1':
machine.reset(
) # hard reset resets hardware and software except firmware loaded
else:
print("Breach")
def mqtt_handler(self, chr):
print("MQTT handler")
events = chr.events()
val = chr.value().decode("utf-8")
if events & Bluetooth.CHAR_WRITE_EVENT:
if val[0] == '0':
self.wifi_ssid.value(val[1:])
NvsStore('server', val[1:])
elif val[0] == '1':
self.wifi_pass.value(val[1:])
NvsStore('port', val[1:])
elif events & Bluetooth.CHAR_READ_EVENT:
print("Connected to server: " + str(self.mqtt_server.value()))
def sensor_handler(self, chr):
print("Sensor handler")
events = chr.events()
val = chr.value().decode("utf-8")
if events & Bluetooth.CHAR_WRITE_EVENT:
if val[0] == '0':
self.temp_sensor.value(val[1])
NvsStore('tempsensor', val[1])
NvsStore('temp_f', val[2:])
elif val[0] == '1':
self.alt_sensor.value(val[1])
NvsStore('altsensor', val[1])
NvsStore('alt_f', val[2:])
elif val[0] == '2':
self.accl_sensor.value(val[1])
NvsStore('acclsensor', val[1])
NvsStore('accl_f', val[2:])
elif val[0] == '3':
self.light_sensor.value(val[1])
NvsStore('lightsensor', val[1])
NvsStore('light_f', val[2:])
else:
pass # for now
class BLEUart:
def __init__(self):
self.status = {'connected': False}
self.rx_data = []
def begin(self, name):
self._ble = Bluetooth()
# Some apps require the service uuid to be part of the advertising packet for the device to show up
# as Uart capable, like the Bluefruit Connect app
self._ble.set_advertisement(
name=name,
service_uuid=unhex('6E400001-B5A3-F393-E0A9-E50E24DCCA9E'))
#self._ble.set_advertisement(name=name)
self._ble.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=self.conn_callback)
self._ble.advertise(True)
nus = self._ble.service(
uuid=unhex('6E400001-B5A3-F393-E0A9-E50E24DCCA9E'),
isprimary=True,
nbr_chars=2)
self.rx = nus.characteristic(
uuid=unhex('6E400002-B5A3-F393-E0A9-E50E24DCCA9E'),
#properties=Bluetooth.PROP_WRITE | Bluetooth.PROP_WRITE_NR,
properties=Bluetooth.PROP_WRITE_NR,
value='')
self.tx = nus.characteristic(
uuid=unhex('6E400003-B5A3-F393-E0A9-E50E24DCCA9E'),
#properties=Bluetooth.PROP_READ | Bluetooth.PROP_NOTIFY,
properties=Bluetooth.PROP_NOTIFY,
value='')
self.tx.callback(trigger=Bluetooth.CHAR_SUBSCRIBE_EVENT,
handler=self.tx_subsc_callback)
self.rx.callback(trigger=Bluetooth.CHAR_WRITE_EVENT,
handler=self.rx_callback)
def end(self):
self.status['connected'] = False
self.rx_data = []
self._ble.disconnect_client()
self._ble.deinit()
def conn_callback(self, bt):
events = bt.events()
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
self.status['connected'] = True
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
self.status['connected'] = False
self.rx_data = []
def rx_callback(self, chr, msg):
data = chr.value()
#print('BLE data received')
strdata = str(data, 'utf-8')
#print('> ', strdata)
self.rx_data.append(strdata)
def tx_subsc_callback(self, chr, msg):
print("Client subscribed", chr.value())
def write(self, msg):
if self.status['connected'] == True:
while len(msg):
data = msg[:20]
msg = msg[20:]
print('BLE data send:')
print('<', data)
self.tx.value(data)
self.tx.value('\r\n')
def available_data(self):
return (True if (len(self.rx_data) > 0) else False)
def get_data(self):
if self.available_data():
data = self.rx_data[0]
del self.rx_data[0]
return data
else:
return 0
pycom.heartbeat(False)
#===============================================================================
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='LoPy',manufacturer_data='Pycom', service_data='Blutooth Low Energy')
bluetooth.start_scan(-1) # scan forever
pycom.rgbled(0x00007f) # Blue
#===============================================================================
init_value = 0x20
char1_read_counter = 0
#===============================================================================
# UUID are READ LSB first (little endian)
# i.e.
# b'BLUTOOTH_SERVICE' = b'424c55544f4f54485f53455256494345'
# will appear as 45434956-5245-535F-4854-4F4F54554C42
b'BLUTOOTH_SERVICE'
srv1 = bluetooth.service(uuid=b'BLUTOOTH_SERVICE', isprimary=True)
char1 = srv1.characteristic(uuid=b'CHARACTERISTIC!!', value=40)
char1.value(init_value)
#===============================================================================
def char1_cb_handler(char1):
global char1_read_counter
events = char1.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
print("Write request with value = {}".format(char1.value()))
if (char1_read_counter < 1):
print('Read request on char 1')
else:
print('Read request on char 1')
char1.value(init_value + char1_read_counter) # overwrite the characteristic value
char1_read_counter += 1
#===============================================================================
# def char21_cb_handler(chr, data):
# # The value is not used in this callback as the WRITE events are not processed.
# events, value = data
# if events & Bluetooth.CHAR_READ_EVENT:
# print('Read request on char 21')
bluetooth = Bluetooth()
bluetooth.set_advertisement(name='LoPy',
service_uuid=0x283B52D274704517BC39E852B24739EA)
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=0x6CADF9A03F4B4A228CBD283788B9EE5C,
nbr_chars=4,
isprimary=True)
# srv2 = bluetooth.service(uuid=0x2021, nbr_chars=3 ,isprimary=True)
#
chr1 = srv1.characteristic(uuid=0x283B52D274704517BC39E852B24739EA,
properties=Bluetooth.PROP_READ,
value=0x000000)
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_READ_EVENT,
handler=char1_cb_handler)
chr_x = srv1.characteristic(uuid=0x0CE418AAE6164546B5EE3EC89E5975D9,
properties=Bluetooth.PROP_READ,
value=0x000000)
chr_y = srv1.characteristic(uuid=0x80725E09370E4BD0A0A7DFB7E40BD31A,
properties=Bluetooth.PROP_READ,
value=0x000000)
chr_z = srv1.characteristic(uuid=0xF35C90EF359A4E83BF5D209F9C3F1E6D,
def conn_cb(bt_o):
events = bt_o.events(
) # this method returns the flags and clears the internal registry
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
bluetooth.advertise(True)
srv1 = bluetooth.service(uuid=b'1234567890123456', isprimary=True)
chr1 = srv1.characteristic(uuid=b'ab34567890123456', value=5)
def char1_cb(chr):
print("Write request with value = {}".format(chr.value()))
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT, handler=char1_cb)
srv2 = bluetooth.service(uuid=1234, isprimary=True)
chr2 = srv2.characteristic(uuid=4567)
class BluetoothApi:
"""Many examples integrated from
https://microchipdeveloper.com/wireless:ble-gatt-data-organization
https://development.pycom.io/firmwareapi/pycom/network/bluetooth/
https://github.com/sandeepmistry/arduino-BLEPeripheral
https://github.com/kriswiner/nRF52832DevBoard/blob/master/BMP280_nRF52.ino
https://forum.pycom.io/topic/2826/how-to-send-data-to-characteristic-over-ble/17
"""
def __init__(self):
self.bt = None
def start(self):
""" """
print('Starting Bluetooth')
self.bt = Bluetooth()
# Default
#self.bt.init(id=0, mode=Bluetooth.BLE, antenna=Bluetooth.INT_ANT, modem_sleep=True)
#self.bt.init(id=0, antenna=Bluetooth.INT_ANT, modem_sleep=False)
self.bt.init(modem_sleep=False)
return
print('Entering main loop')
while True:
print('--- loop ---')
adv = self.bt.get_adv()
print('adv:', adv)
# Give the system some breath.
print('machine.idle()')
machine.idle()
utime.sleep(10.0)
continue
def scan(self, duration):
"""
:param duration:
"""
duration = int(duration)
print('Starting Bluetooth scan for {} seconds'.format(duration))
self.bt.start_scan(duration)
while self.bt.isscanning():
#print('is-scanning')
adv = self.bt.get_adv()
if adv:
# try to get the complete name
name_short = self.bt.resolve_adv_data(adv.data,
Bluetooth.ADV_NAME_SHORT)
name_complete = self.bt.resolve_adv_data(
adv.data, Bluetooth.ADV_NAME_CMPL)
print('names:', name_short, name_complete)
service_data = self.bt.resolve_adv_data(
adv.data, Bluetooth.ADV_SERVICE_DATA)
print('service_data:', service_data)
mfg_data = self.bt.resolve_adv_data(
adv.data, Bluetooth.ADV_MANUFACTURER_DATA)
if mfg_data:
# try to get the manufacturer data (Apple's iBeacon data is sent here)
data = ubinascii.hexlify(mfg_data)
print('data:', data)
print('Bluetooth scanning stopped')
def find_heart_rate(self):
""" """
adv = self.bt.get_adv()
if adv and self.bt.resolve_adv_data(
adv.data, Bluetooth.ADV_NAME_CMPL) == 'Heart Rate':
try:
conn = self.bt.connect(adv.mac, timeout=5000)
services = conn.services()
for service in services:
utime.sleep(0.050)
if type(service.uuid()) == bytes:
print('Reading chars from service = {}'.format(
service.uuid()))
else:
print('Reading chars from service = %x' %
service.uuid())
chars = service.characteristics()
for char in chars:
if (char.properties() & Bluetooth.PROP_READ):
print('char {} value = {}'.format(
char.uuid(), char.read()))
conn.disconnect()
except:
print("Error while connecting or reading from the BLE device")
else:
utime.sleep(0.050)
utime.sleep(10.0)
def advertise(self):
"""https://development.pycom.io/firmwareapi/pycom/network/bluetooth/"""
device_name = get_device_name()
print('Advertising device {}'.format(device_name))
# TODO: Get from settings
self.bt.set_advertisement(name=device_name,
service_uuid=b'1234567890123456')
def conn_cb(bt_o):
"""
:param bt_o:
"""
print("Callback happened")
# Returns flags and clear internal registry
events = bt_o.events()
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected:", events)
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
self.bt.callback(trigger=Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED,
handler=conn_cb)
self.bt.advertise(True)
def start_service(self):
"""https://development.pycom.io/firmwareapi/pycom/network/bluetooth/gattsservice/
https://development.pycom.io/firmwareapi/pycom/network/bluetooth/gattscharacteristic/
https://www.bluetooth.com/specifications/gatt/characteristics/
https://docs.python.org/3/library/struct.html
The format field determines how a single value contained in the Characteristic Value is formatted.
The information contained on this page is referenced in Bluetooth® Core Specification Volume 3, Part G, Section 3.3.3.5.2.
https://www.bluetooth.com/specifications/assigned-numbers/format-types/
"""
print('Starting service')
# A. Battery Service
# UUID: 180F
# Abstract: The Battery Service exposes the state of a battery within a device
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.service.battery_service.xml
battery = self.bt.service(uuid=0x180F,
isprimary=True,
nbr_chars=1,
start=True)
# Battery Level
# UUID: 2A19
# Abstract: The current charge level of a battery.
# 100% represents fully charged while 0% represents fully discharged
# Format: uint8
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.battery_level.xml
battery_level = battery.characteristic(uuid=0x2A19, value=78)
# B. Environmental Sensing Service (ESS)
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.service.environmental_sensing.xml
# https://www.bluetooth.com/specifications/assigned-numbers/environmental-sensing-service-characteristics/
# https://github.com/sandeepmistry/arduino-BLEPeripheral/issues/215
# https://github.com/sandeepmistry/arduino-nRF5/issues/248
environment = self.bt.service(uuid=0x181A,
isprimary=True,
nbr_chars=5,
start=True)
# Temperature
# UUID: 2A6E
# InformativeText: Unit is in degrees Celsius with a resolution of 0.01 degrees Celsius
# Format: sint16
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.temperature.xml
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.temperature_measurement.xml
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.temperature_type.xml
# https://github.com/ARMmbed/ble/blob/master/ble/services/HealthThermometerService.h
# https://github.com/ARMmbed/ble/blob/master/ble/services/EnvironmentalService.h
# Temperature Celsius
# UUID: 2A1F
# Format: sint16
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.temperature_celsius.xml
self.temp = 42.42
temperature = environment.characteristic(uuid=0x2A1F)
def temp_getter(chr):
"""
:param chr:
"""
print('Getting characteristic:', chr)
value = sint16(self.temp * 10)
print('Value:', value)
self.temp += 1
return value
print('Adding characteristic callback')
temperature_callback = temperature.callback(
trigger=Bluetooth.CHAR_READ_EVENT, handler=temp_getter)
# Temperature Measurement
# UUID: 2A1C
# Format: Variable length structure
# Value Format: FLOAT (IEEE-11073 32-bit FLOAT)
# Abstract: The Temperature Measurement characteristic is a variable length structure
# containing a Flags field, a Temperature Measurement Value field and, based upon the
# contents of the Flags field, optionally a Time Stamp field and/or a Temperature Type field.
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.temperature_measurement.xml
print('Adding Temperature Measurement')
temperature_measurement = environment.characteristic(
uuid=0x2A1C, value=encode_temperature_2a1c(42.428423))
# Scientific Temperature
# UUID: 2A3C
# Format: float64 (IEEE-754 64-bit floating point)
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.scientific_temperature_celsius.xml
# http://forum.espruino.com/conversations/306536/
# https://stackoverflow.com/questions/36655172/how-to-read-a-ble-characteristic-float-in-swift
# For the 'f', 'd' and 'e' conversion codes, the packed representation uses the IEEE 754
# binary32, binary64 or binary16 format (for 'f', 'd' or 'e' respectively), regardless of
# the floating-point format used by the platform.
# https://docs.python.org/3/library/struct.html
#print('Adding Scientific Measurement')
#temperature_sci = environment.characteristic(uuid=0x2A3C, value=float64(42.42))
# Humidity
# UUID: 2A6F
# InformativeText: Unit is in percent with a resolution of 0.01 percent
# Format: uint16
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.humidity.xml
humidity1 = environment.characteristic(uuid=0x2A6F,
value=uint16(86.86 * 100))
humidity2 = environment.characteristic(uuid=0x2A6F,
value=uint16(50.55 * 100))
# Pressure
# UUID: 2A6D
# InformativeText: Unit is in pascals with a resolution of 0.1 Pa
# Format: uint32
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.pressure.xml
# Weight
# UUID: 2A98
# InformativeText: Unit is in kilograms with a resolution of 0.005
# Format: uint16
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.weight.xml
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.weight_measurement.xml
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.weight_scale_feature.xml
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.weight.xml
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.weight_measurement.xml
# https://github.com/oesmith/gatt-xml/blob/master/org.bluetooth.characteristic.weight_scale_feature.xml
weight = environment.characteristic(uuid=0x2A98,
value=uint16(25.44 * 2 * 100))
# GPS
# https://forum.pycom.io/topic/5012/can-only-see-value-of-first-gatt-characteristic
"""
lan = bt.service(0x1819, nbr_chars=3)
# 0.001 precision
lan.characteristic(uuid=0x2AAE, value=int(gps.lat * 1000))
lan.characteristic(uuid=0x2AAF, value=int(gps.lon * 1000))
lan.characteristic(uuid=0x2AB3, value=int(gps.alt * 1000))
"""
# Generic Access
# UUID: 1800
# Abstract: The generic_access service contains generic information
# about the device. All available Characteristics are readonly.
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Services/org.bluetooth.service.generic_access.xml
# Generic Attribute Service
# UUID: 1801
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Services/org.bluetooth.service.generic_attribute.xml
# String Characteristic
# UUID: 2A3D
# A generic UTF8 string which may be used in Services requiring strings.
# https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.string.xml
srv1 = self.bt.service(uuid=BluetoothUuid.to_bytes_le(
'15ECCA29-0B6E-40B3-9181-BE9509B53200'),
isprimary=True,
nbr_chars=2,
start=True)
#generic_attribute = self.bt.service(uuid=0x1800, isprimary=True, nbr_chars=2, start=True)
#wifi_ssid = generic_attribute.characteristic(uuid=0x2A3D, properties=Bluetooth.PROP_BROADCAST | Bluetooth.PROP_INDICATE | Bluetooth.PROP_NOTIFY | Bluetooth.PROP_READ | Bluetooth.PROP_WRITE, value="default")
#wifi_ssid = generic_attribute.characteristic(uuid=0x2A3D, properties=Bluetooth.PROP_NOTIFY | Bluetooth.PROP_READ | Bluetooth.PROP_WRITE, value="default")
wifi_ssid = srv1.characteristic(uuid=0x2A3D)
#wifi_password = generic_attribute.characteristic(uuid=0x2A3D, properties=Bluetooth.PROP_READ | Bluetooth.PROP_WRITE)
#print('wifi_ssid:', wifi_ssid, dir(wifi_ssid))
#cfg = wifi_ssid.config()
#print('cfg:', cfg)
#wifi_ssid.config(name='hallodri')
print('wifi_ssid:', wifi_ssid)
print('wifi_ssid:', dir(wifi_ssid))
def wifi_callback(characteristic):
"""
:param characteristic:
"""
print('Characteristic callback:', characteristic)
#print('attr_obj:', characteristic.attr_obj)
events = characteristic.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
print("Write request with value = {}".format(
characteristic.value()))
else:
pass
value = characteristic.value()
print('Reading characteristic:', value)
print('Adding characteristic callback')
wifi_ssid_callback = wifi_ssid.callback(
trigger=Bluetooth.CHAR_READ_EVENT | Bluetooth.CHAR_WRITE_EVENT,
handler=wifi_callback)
#wifi_password_callback = wifi_password.callback(trigger=Bluetooth.CHAR_READ_EVENT | Bluetooth.CHAR_WRITE_EVENT, handler=wifi_callback)
#print('instance:', wifi_ssid.instance())
# Characteristic User Description
# UUID: 0x2901,0x2902
print(wifi_ssid_callback)
print(dir(wifi_ssid_callback))
srv1.characteristic(uuid=0x2901, value="hello world 1")