def isOwnerNearby(self):
'''
Logic here checks if a known BLE device is broadcasting nearby.
If they are, return true. Else, return false
'''
# TODO remove
return False
bt = Bluetooth()
bt.start_scan(ConfigBluetooth.SCAN_ALLOW_TIME) # Scans for 10 seconds
while bt.isscanning():
adv = bt.get_adv()
if adv and binascii.hexlify(adv.mac) == ConfigBluetooth.MAC_ADDR:
try:
if self.debug:
print("Owner device found: {} Mac addr {}".format(
bt.resolve_adv_data(adv.data,
Bluetooth.ADV_NAME_CMPL),
ConfigBluetooth.MAC_ADDR))
conn = bt.connect(adv.mac)
time.sleep(0.05)
conn.disconnect()
bt.stop_scan()
except Exception:
bt.stop_scan()
return True
time.sleep(0.050)
return False
def find_ble(testCase=None):
bluetooth = Bluetooth()
try:
if isinstance(testCase, Exception):
raise testCase
bluetooth.start_scan(5)
while bluetooth.isscanning():
adv = bluetooth.get_adv()
if adv:
mac = ubinascii.hexlify(adv.mac)
if mac == bytearray(GATT_CLIENT_MAC):
#name = bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)
#print(mac, name, adv.rssi)
if not testCase == 'Not found':
rssi = adv.rssi
bluetooth.stop_scan()
break
else:
rssi = -10000
bluetooth.deinit()
except Exception as e:
return -10000
if testCase is not None and not testCase == 'Not found':
rssi = testCase
if rssi >= 0:
return -10000
return rssi
def getBluetoothNetworks():
bl_networks = {}
tmp_mac = []
bl_index = 0
nb_scan = 0
bl = Bluetooth()
while nb_scan < NB_SCAN_BL:
print("scan : %d" % nb_scan)
bl.start_scan(10) #Duration of scan to be define !!!!
while bl.isscanning():
adv = bl.get_adv()
if adv:
if adv.mac not in tmp_mac:
tmp_mac.append(adv.mac)
bl_networks[str(bl_index)] = {
"id": str(ubinascii.hexlify(adv.mac, ":"))[2:19],
"rssi": str(adv.rssi)
}
print("NAME = %s -- MAC : %s -- RSSI = %d" %
(bl.resolve_adv_data(adv.data, bl.ADV_NAME_CMPL),
ubinascii.hexlify(adv.mac, ":"), adv.rssi))
bl_index += 1
nb_scan += 1
tmp_mac = []
utime.sleep(BL_DELAY_SCAN_SEC)
print("getBluetoothNetworks - Done!")
return bl_networks
def initConnection(address):
pycom.rgbled(0xffff00)
pycom.heartbeat(False)
bluetooth = Bluetooth()
bluetooth.start_scan(-1)
bluetooth.init()
while True:
print("starting bluetooth")
global connection
devices = bluetooth.get_advertisements()
try:
if devices is not None and len(devices) > 0:
for device in devices:
uuid = ubinascii.hexlify(device.mac)
if (str(uuid) == address):
print("foud the arduino")
connection = bluetooth.connect(device.mac)
print(device)
bluetooth.stop_scan()
global char
char = getBleChar()
pycom.rgbled(0x00ff00)
return device
except:
print("arduino refused connection trying again")
pycom.heartbeat(True)
closeConnection()
continue
time.sleep(0.05)
pycom.rgbled(0xff0000)
return None
class BluetoothWorker:
def __init__(self, devices):
self.devices = devices
self.bt = Bluetooth()
if self.bt.isscanning():
self.bt.stop_scan()
self.bt.start_scan(-1)
def get_adv(self):
while True:
adv = self.bt.get_adv()
if adv:
self.devices.add_mac(adv.mac, Devices.BLUETOOTH)
else:
break
def bluetooth_scanner():
global ble_thread
try:
while True:
try:
tools.debug('BLE - Starting BLE scanner, RSSI: ' + str(int(globalVars.RSSI_NEAR_THRESHOLD,16) - 256) + " - RTC: " + str(int(utime.time())) + " - REFRESH: " + str(globalVars.MAX_REFRESH_TIME) + " - SCAN: " + str(int(globalVars.BLE_SCAN_PERIOD)) + " - SLEEP: " + str(int(globalVars.STANDBY_PERIOD)) + " - DEBUG: " + str(globalVars.debug_cc) ,'v')
ble_thread = True
bluetooth = Bluetooth()
bluetooth.tx_power(Bluetooth.TX_PWR_SCAN, Bluetooth.TX_PWR_P9)
bluetooth.start_scan(int(globalVars.BLE_SCAN_PERIOD))
while bluetooth.isscanning():
adv = bluetooth.get_adv()
if adv:
if 'WILOC_01' in str(bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)):
data_raw = str(ubinascii.hexlify(adv.data).decode('utf-8'))
if globalVars.MAC_TYPE == "LORA":
mac_proc = data_raw[34:50] # LoRa MAC
elif globalVars.MAC_TYPE == "BLE":
mac_proc = str(ubinascii.hexlify(adv.mac).decode('utf-8')) # MAC BLE
tools.debug('Name: '+ str(bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)) +' MAC: '+ str(mac_proc)+ ' RSSI: ' + str(adv.rssi) + ' DT: '+ str(int(utime.time())) +' RAW: ' + data_raw,'vvv')
if mac_proc not in globalVars.mac_scanned:
tools.debug('Step 1 - New device detected: ' + str(mac_proc),'vv')
globalVars.mac_scanned.append(mac_proc)
if adv.rssi >= (int(globalVars.RSSI_NEAR_THRESHOLD,16) - 256):
wilocMain.checkListType(str(mac_proc), globalVars.ALARM_LIST_TYPE)
globalVars.scanned_frames.append(Device(addr=mac_proc,rssi=adv.rssi, raw=data_raw))
elif 'WIL_C01' in str(bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)):
data_raw = str(ubinascii.hexlify(adv.data).decode('utf-8'))
mac_proc = str(ubinascii.hexlify(adv.mac).decode('utf-8')) # MAC BLE
#tools.debug('BLE Name: '+ str(bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)) +' - BLE MAC: '+ str(mac_proc)+ ' - RSSI: ' + str(adv.rssi) + ' - DT: '+ str(int(utime.time())) +' - RAW: ' + data_raw,'vvv')
if mac_proc not in globalVars.mac_scanned:
tools.debug('Step 1 - BLE New device detected: ' + str(mac_proc),'vv')
globalVars.mac_scanned.append(mac_proc)
if adv.rssi >= (int(globalVars.RSSI_NEAR_THRESHOLD,16) - 256):
wilocMain.checkListType(str(mac_proc), globalVars.ALARM_LIST_TYPE)
globalVars.scanned_frames.append(Device(addr=mac_proc,rssi=adv.rssi, raw=data_raw))
tools.debug('BLE - Stopping BLE scanner ' + str(int(utime.time())),'v')
tools.sleepWiloc(int(globalVars.STANDBY_PERIOD))
except BaseException as ee1:
checkError("Error scanning Bluetooth",ee1)
tools.sleepWiloc(int(globalVars.STANDBY_PERIOD))
except BaseException as e:
checkError("Error thread Bluetooth", e)
ble_thread = False
finally:
ble_thread = False
_thread.start_new_thread(bluetooth_scanner,())
def main():
first = True
while True:
if first == True:
om2m.createApplication('http://smart-iot.lan.uow.edu.au:8181/~/in-cse', 'admin:admin', 'LOPY5')
om2m.createContainer('http://smart-iot.lan.uow.edu.au:8181/~/in-cse/in-name/LOPY5', 'admin:admin', 'WiFi_Connectivity')
om2m.subscribeResource('http://smart-iot.lan.uow.edu.au:8181/~/in-cse/in-name/LOPY5/WiFi_Connectivity', 'admin:admin', 'lopy5_wifi_sub', 'http://smart-iot.lan.uow.edu.au:8081/monitorLopy5Wifi')
wlan = WLAN()
wlan.init(mode=WLAN.STA)
wfResults = wlan.scan()
wifiCon = getWifiConnectivity(wfResults)
print('WiFi Connectivity:')
print(wifiCon)
print(len(wifiCon['names']))
wifiData = {
'Networks': wifiCon['names'],
'MAC Addresses': wifiCon['macs'],
'Signal Strengths': wifiCon['strengths']
}
om2m.createContentInstance('http://smart-iot.lan.uow.edu.au:8181/~/in-cse/in-name/LOPY5/WiFi_Connectivity', 'admin:admin', json.dumps(wifiData) )
if first == True:
om2m.createContainer('http://smart-iot.lan.uow.edu.au:8181/~/in-cse/in-name/LOPY5', 'admin:admin', 'BT_Connectivity')
om2m.subscribeResource('http://smart-iot.lan.uow.edu.au:8181/~/in-cse/in-name/LOPY5/BT_Connectivity', 'admin:admin', 'lopy5_bt_sub', 'http://smart-iot.lan.uow.edu.au:8081/monitorLopy5BT')
first = False
bluetooth = Bluetooth()
bluetooth.start_scan(3)
while bluetooth.isscanning():
time.sleep(1)
btResults = bluetooth.get_advertisements()
btCon = getBTConnectivity(btResults)
print('BT Connectivity:')
print(btCon)
btData = {
'MAC Addresses': btCon['macs'],
'Signal Strengths': btCon['strengths']
}
om2m.createContentInstance('http://smart-iot.lan.uow.edu.au:8181/~/in-cse/in-name/LOPY5/BT_Connectivity', 'admin:admin', json.dumps(btData) )
time.sleep(30)
def scanBluetooth():
bt = Bluetooth()
bt.start_scan(
-1) # Start scanning indefinitely until stop_scan() is called
while True:
adv = bt.get_adv()
if adv:
# try to get the complete name
print("BT Name: {}".format(
bt.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)))
# print out mac address of bluetooth device
print("Mac addr: {}, {}".format(adv.mac,
binascii.hexlify(adv.mac)))
else:
time.sleep(0.5)
time.sleep(3)
def main():
gc.enable()
while True:
WIFI() #Connect to WiFi
set_rtc() #Set RTC time
mqtt1() #Connect Heatcheck Client
mqtt2() #Conenct BLE Client
_thread.start_new_thread(heartbeat, ()) #Start HeartBeat loop
print("Scanning... from: " + MAC) #Prints device MAC
print(TOPIC) #Prints BLE data Topic
global bt
bt = Bluetooth()
if CONFIG.get(
'btExt') == True: #If wnating to use external BLE antenna
Pin('P12', mode=Pin.OUT)(True)
bt.init(antenna=Bluetooth.EXT_ANT)
print("Using Ext for Bt")
bt.start_scan(-1) #Start Scanning for BLE data indefinitely
_thread.start_new_thread(scan, ()) #Start BLE decode loop
print("Scanning....")
running_check() #Start wait loop, checks for incoming messages
machine.reset() #Should never get this ppoint
def isBTDeviceNearby():
bt = Bluetooth()
while True:
print("Scanning for owner BT device nearby...")
bt.start_scan(10) # Scans for 10 seconds
while bt.isscanning():
adv = bt.get_adv()
if adv and binascii.hexlify(adv.mac) == ConfigBluetooth.MAC_ADDR:
try:
print("Owner device found: {} Mac addr {}".format(
bt.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL),
ConfigBluetooth.MAC_ADDR))
conn = bt.connect(adv.mac)
time.sleep(0.05)
conn.disconnect()
bt.stop_scan()
except Exception as e:
print("Exception {}".format(e))
bt.stop_scan()
break
else:
time.sleep(0.050)
# org.bluetooth.service.battery_service - BS_BS_INT = 0x180F
# org.bluetooth.characteristic.battery_level_BS_CHAR = (UUID(0x2A19), FLAG_READ | FLAG_NOTIFY,)
# org.bluetooth.service.weight_scale - WS_WS_INT = 0x181D
# org.bluetooth.characteristic.weight_measurement_WS_CHAR = (UUID(0x2A9D), FLAG_READ | FLAG_NOTIFY,)
# org.bluetooth.service.environmental_sensing - ES _ES_INT = 0x181A
from network import Bluetooth
import time
import struct
print('Create BT')
bluetooth = Bluetooth()
print('Scanning...')
bluetooth.start_scan(2) # start scanning with no timeout
time.sleep(2.1)
if not bluetooth.isscanning():
for adv in bluetooth.get_advertisements():
name = bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)
if name == 'HEN':
mac = adv.mac
try:
print('Connecting to HEN')
conn = bluetooth.connect(adv.mac)
time.sleep(0.05)
services = conn.services()
for service in services:
time.sleep(0.050)
#print('Service: ',service.uuid())
#print('Chars: ',service.characteristics())
import ubinascii
import time
from network import Bluetooth
########################################################
# Scan for bluetooth signals and retrieve data #
########################################################
ids = []
bluetooth = Bluetooth()
bluetooth.start_scan(20)
while bluetooth.isscanning():
adv = bluetooth.get_adv()
if adv:
mfg_data = bluetooth.resolve_adv_data(adv.data,
Bluetooth.ADV_MANUFACTURER_DATA)
if mfg_data:
if (ubinascii.hexlify(mfg_data) == str.encode(
"590002150112233445566778899aabbccddeeff0dd907baabb")):
print("you have arrived", ubinascii.hexlify(mfg_data))
break
else:
if ubinascii.hexlify(mfg_data) not in ids:
ids.append(ubinascii.hexlify(mfg_data))
print(ubinascii.hexlify(mfg_data), " strength ", adv.rssi)
for net in nets: # connect to rpi wifi
if net.ssid == 'cooppifi':
print('rpi found!')
wlan.connect(net.ssid, auth=(net.sec, 'cooppifi2017'), timeout=4000)
for _ in range(20):
time.sleep(1)
if wlan.isconnected():
print("connected to rpi")
break
print('.', end='')
else:
print("could not connect to wifi, resetting lopy...")
machine.reset()
bluetooth = Bluetooth()
bluetooth.start_scan(-1)
adv = None # bluetooth advertisementa
#socket.IPPROTO_UDP
time.sleep(1)
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
#s.connect(socket.getaddrinfo('10.42.0.1', port)[0][-1])
def sendToSocket(beaconID, rssi):
RSSIpositive = rssi * -1
string = str(lopyID) + "," + str(beaconID) + "," + str(RSSIpositive) + ","
data = bytearray(string)
addr = socket.getaddrinfo('10.42.0.1', 7007)[0][-1]
s.sendto(data, addr)
# new mac adresses:
def BLEClient():
#Description: check if the BLE server is set up by another LoPy
#Note: for convention reason, the LoPy server name will be "LoPyServer"+device_id
def checkValidServer(server_name):
if (server_name == None): return False
else:
#check if server_name contains "LoPyServer"
if (re.match('LoPyServer*', server_name)):
return True
else:
return False
global rec_msg
###### Third, set up BLE client service ######
bluetooth_client = Bluetooth()
bluetooth_client.start_scan(10)
#server_name1 = bluetooth_client.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)
counter = 50
#while True:
while counter > 0:
#Gets an named tuple with the advertisement data received during the scanning.
#The structure is (mac, addr_type, adv_type, rssi, data)
adv = bluetooth_client.get_adv()
#servermac = ''#save the serer mac
#use resolve_adv_data to resolve the 31 bytes of the advertisement message
#Here is problem: when disconnect from server, then adv will always be null...
#if get a valid advertisement from one server
if adv:
server_name = bluetooth_client.resolve_adv_data(
adv.data, Bluetooth.ADV_NAME_CMPL)
#print(server_name)
if checkValidServer(server_name):
try:
#Opens a BLE connection with the device specified by the mac_addr argument
#This function blocks until the connection succeeds or fails.
#print(adv.mac)
#global servermac#change servermac to global
#servermac = adv.mac
#counter += 1
conn = bluetooth_client.connect(adv.mac)
#print('connected?',conn.isconnected())
services = conn.services()
#print('This is service',services)
#print(services)
#Yunwei - it seems that only when the type of uuid is bytes then could read the data from server
for service in services:
time.sleep(0.050)
if type(service.uuid()) == bytes:
chars = service.characteristics()
for char in chars:
#check if the character properties is PROP_READ
if (char.properties() & Bluetooth.PROP_READ):
print('char {} value = {}'.format(
char.uuid(), char.read()))
#create lora msg
rec_msg = str(char.read())
counter -= 1
#Use LoRa to send the data out
#s.send(char.read())
time.sleep(5)
#Yunwei
conn.disconnect()
print('connected?', conn.isconnected())
#break
time.sleep(3)
gc.collect()
bluetooth_client.start_scan(10)
except:
print(
"Error while connecting or reading from the BLE device"
)
#break
time.sleep(1)
if (bluetooth_client.isscanning()):
bluetooth_client.stop_scan()
bluetooth_client.deinit()
time.sleep(1)
bluetooth_client.init()
time.sleep(1)
#init again
#bluetooth_client.init(id=0, mode=Bluetooth.BLE, antenna=None)
bluetooth_client.start_scan(10)
else:
bluetooth_client.deinit()
time.sleep(1)
bluetooth_client.init()
time.sleep(1)
bluetooth_client.start_scan(10)
bluetooth_client.stop_scan()
bluetooth_client.deinit()
def setup(dm):
global bt
bt = Bluetooth()
bt.start_scan(-1)
def BlueToothFun():
'''
#Firstly,act as a server
pycom.heartbeat(False)
bluetooth = Bluetooth() #create a bluetooth object
bluetooth.set_advertisement(name='LoPyServer2', service_uuid=b'1234567890123456')
#id for this device
deviceID = 222
#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
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
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)
chr2 = srv2.characteristic(uuid=4567, value=0x1234)
char2_read_counter = 0xF0
def char2_cb_handler(chr):
global char2_read_counter
char2_read_counter += 1
if char2_read_counter > 0xF1:
return char2_read_counter
char2_cb = chr2.callback(trigger=Bluetooth.CHAR_READ_EVENT, handler=char2_cb_handler)'''
#Secondly, also act as client
bt = Bluetooth()
bt.start_scan(-1)
counter = 0
while True:
#Gets an named tuple with the advertisement data received during the scanning.
#The structure is (mac, addr_type, adv_type, rssi, data)
adv = bt.get_adv()
#servermac = ''#save the serer mac
#use resolve_adv_data to resolve the 31 bytes of the advertisement message
#Here is problem: when disconnect from server, then adv will always be null...
if adv and bt.resolve_adv_data(
adv.data, Bluetooth.ADV_NAME_CMPL) == 'LoPyServer1':
try:
#Opens a BLE connection with the device specified by the mac_addr argument
#This function blocks until the connection succeeds or fails.
#print(adv.mac)
#global servermac#change servermac to global
#servermac = adv.mac
counter += 1
conn = bt.connect(adv.mac)
#print('connected?',conn.isconnected())
services = conn.services()
#print('This is service',services)
#print(services)
'''
for service in services:
print('This is service uuid',service.uuid())
time.sleep(0.050)
if type(service.uuid()) == bytes:
print('if bytes:Reading chars from service = {}'.format(service.uuid()))
else:
print('if not bytes: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()))
'''
#Yunwei - it seems that only when the type of uuid is bytes then could read the data from server
for service in services:
time.sleep(0.050)
if type(service.uuid()) == bytes:
chars = service.characteristics()
for char in chars:
#check if the character properties is PROP_READ
if (char.properties() & Bluetooth.PROP_READ):
print('char {} value = {}'.format(
char.uuid(), char.read()) + str(counter))
#Yunwei
conn.disconnect()
print('connected?', conn.isconnected())
#break
time.sleep(1)
bt.start_scan(-1)
except:
print("Error while connecting or reading from the BLE device")
#break
time.sleep(1)
bt.start_scan(-1)
print('Scan again')
class SwarmBluetooth(Body.SwarmBody, Network.SwarmNetwork):
def __init__(self):
#Body.SwarmBody.__init__(self)
#Network.SwarmNetwork.__init__(self)
self.bluetooth = Bluetooth()
self.Collision_Timer = 0
self.Tile_Transmit_Timer = 2
self.bl_threshold = -35
self.RepulsionTime = 2000
pass
#Transmits Information about a Tile that a robot is traversing
#We don't actually need to send temperature information in this message as other bots need not know
def Start_Transmit_Tile_Update(self, RX, RY, Luminosity, Time_Steps):
#This statment may be not good, current unsure
#self.bluetooth.stopscan();
print("Tile Transmit Update" + str(RX) + "/" + str(RY))
#Sets the advertisment that we want, the method work up to 99, uses 01, 10
if RX < 10:
RXM = "0" + str(RX)
else:
RXM = str(RX)
if RY < 10:
RYM = "0" + str(RY)
else:
RYM = str(RY)
ss = RXM + RYM + str(Luminosity)
#print(ss);
self.bluetooth.set_advertisement(name="a_mp",
manufacturer_data="l",
service_data=ss)
self.bluetooth.advertise(True)
#Sets teh timer for how long we should transmit
self.Tile_Transmit_Timer = 200
return -1
def test_transmit(self):
self.bluetooth.set_advertisement(name="a",
manufacturer_data="l",
service_data="99999")
self.bluetooth.advertise(True)
#Broadcasts the selection of a tile as a robots destination
def Broadcast_Tile_Selection(self, Target_Destination, State):
RX = Target_Destination[0]
RY = Target_Destination[1]
print("Broadcasting Tile Selection" + str(RX) + "/" + str(RY))
#Sets the advertisment that we want, the method work up to 99, uses 01, 10
if RX < 10:
RXM = "0" + str(RX)
else:
RXM = str(RX)
if RY < 10:
RYM = "0" + str(RY)
else:
RYM = str(RY)
mes = RXM + RYM + str(State)
self.bluetooth.set_advertisement(name="a_tg",
manufacturer_data="l",
service_data=mes)
self.bluetooth.advertise(True)
self.Tile_Transmit_Timer = 50
return -1
#Handles Transmission and Listening Decisions For a given cycle
#Needs to be run each cycle
def Handle_Bluetooth_Behaviour(self, Swarmbehv_obj, print_boolean):
if self.Collision_Timer > 0:
self.Collision_Timer -= 1
#Transmit if transmission timer is active
#print(str(self.Tile_Transmit_Timer));
if self.Tile_Transmit_Timer > 1:
self.Tile_Transmit_Timer -= 1
#self.bluetooth.stopscan();
#print("Decrementing")
#If stopping transmission
elif self.Tile_Transmit_Timer == 1:
self.bluetooth.advertise(False)
self.Tile_Transmit_Timer -= 1
#Start Scanning
if self.bluetooth.isscanning() == False:
self.bluetooth.start_scan(-1)
#print("Starting A Scan")
#If not transmitting
else:
#If we are scanning for bluetooth transmissions
if self.bluetooth.isscanning():
#print("Scanning");
#Continue to do it
adv = self.bluetooth.get_adv()
if adv:
# try to get the complete name
if print_boolean == True:
pass
#print(self.bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL))
name = self.bluetooth.resolve_adv_data(
adv.data, Bluetooth.ADV_NAME_CMPL)
mfg_data = self.bluetooth.resolve_adv_data(
adv.data, Bluetooth.ADV_MANUFACTURER_DATA)
adv_mes = self.bluetooth.resolve_adv_data(
adv.data, Bluetooth.ADV_SERVICE_DATA)
if print_boolean == True:
pass
#print(adv_mes);
if adv_mes:
if print_boolean == True:
print("MES!")
if mfg_data:
if print_boolean == True:
pass
#print(ubinascii.hexlify(mfg_data))
if adv_mes and name:
bl_strength = adv[3]
#If the strength is past the bl_threshold
if bl_strength > self.bl_threshold:
#We start our collision reverse movement
if self.Collision_Timer == 0:
self.Collision_Timer = self.RepulsionTime
#Ths code wll be req n future
#Unless we are alreay in one, then we cancel it and restart normal movement
#else:
#self.Collision_Timer = 0;
if print_boolean == True:
pass
#print(ubinascii.hexlify(adv_mes))
#print(adv_mes)
#If meesage is an intent update
if name == "a_tg":
#if print_boolean == True:
#print("target recieved!" + str(bl_strength))
#do it
hexd = ubinascii.hexlify(adv_mes)
mx = (int(adv_mes[0]) - 48) * 10 + (
int(adv_mes[1]) - 48)
my = (int(adv_mes[2]) - 48) * 10 + (
int(adv_mes[3]) - 48)
state = int(adv_mes[4]) - 48
if print_boolean == True:
print(mx)
print(my)
print(state)
#If all of them are integers
if isinstance(mx, int) and isinstance(
my, int) and isinstance(state, int):
Swarmbehv_obj.Map_Assignement[mx][my] = state
if print_boolean == True:
#Swarmbehv_obj.Display_Map(Swarmbehv_obj.Map_Light);
pass
elif name == "a_mp":
if print_boolean == True:
print("mapping recieved !")
#If message is a tile update
#Get coords of square
cx = (int(adv_mes[0]) - 48) * 10 + (
int(adv_mes[1]) - 48)
cy = (int(adv_mes[2]) - 48) * 10 + (
int(adv_mes[3]) - 48)
#create temp string
lumin_s = 0
for i in range(4, len(adv_mes)):
lumin_s += (10**(len(adv_mes) - i -
1)) * (int(adv_mes[i]) - 48)
#make temp float
lumin_s = float(lumin_s)
if print_boolean == True:
print(cx)
print(cy)
print(lumin_s)
#If cx and cy are integers
if isinstance(cx, int) and isinstance(
cy, int) and cx > 0 and cy > 0:
Swarmbehv_obj.Map_Light[cx][cy] = lumin_s
Swarmbehv_obj.Map_Bounty[cx][cy] = 0
#Swarmbehv_obj.Area_Matrix[cx][cy] = 1;
#print(Swarmbehv_obj.Area_Matrix);
if print_boolean == True:
Swarmbehv_obj.Display_Map(
Swarmbehv_obj.Map_Light)
#Charge Request Message
elif name == "a_cr":
if print_boolean == True:
print("Charge Request Recieved !")
hexd = ubinascii.hexlify(adv_mes)
mx = (int(adv_mes[0]) - 48) * 10 + (
int(adv_mes[1]) - 48)
my = (int(adv_mes[2]) - 48) * 10 + (
int(adv_mes[3]) - 48)
#t_ID = 0;
#for i in range(4,len(adv_mes)):
#t_ID += (10**(len(adv_mes)-i-1))*(int(adv_mes[i])-48);
Swarmbehv_obj.Charge_Flag = True
#Swarmbehv_obj.classharge_ID = t_ID;
Swarmbehv_obj.Charge_X = mx
Swarmbehv_obj.Charge_Y = my
#If it is not then goto square and transmit intent
#Charge accepted message
elif name == "a_ch":
print("Charge Ticket Accepeted Elsewhere !")
Swarmbehv_obj.Charge_Flag = False
#Used to run handle bluetooth behaviour on a thread
def Handle_Bluetooth_Behaviour_Continuous(self, Swarmbehv_obj,
print_boolean):
while True:
self.Handle_Bluetooth_Behaviour(Swarmbehv_obj, print_boolean)
#Sends a global call for itself to be charged
def Call_For_Charge(self, Swarmbehv_obj, Current_X, Current_Y):
RX = 0
RY = 0
RY = Current_Y
#Check the Tile 2 to the left
if Current_X - 2 > 0:
RX = Current_X - 2
elif Current_X + 2 < math.floor(
Swarmbehv_obj.Arena_X_Mm / Swarmbehv_obj.Arena_Grid_Size_X):
RX = Current_X - 2
else:
pass
RX = Current_X
#Somthing in Y required here ?
#Check the Tile 2 to the right
#Use whichever is not out of the Area_Matrix
#RX = Target_Destination[0];
#RY = Target_Destination[1];
print("Broadcasting Call For Charge" + str(RX) + "/" + str(RY))
#Sets the advertisment that we want, the method work up to 99, uses 01, 10
if RX < 10:
RXM = "0" + str(RX)
else:
RXM = str(RX)
if RY < 10:
RYM = "0" + str(RY)
else:
RYM = str(RY)
mes = RXM + RYM #str(ubinascii.hexlify(machine.unique_id()));
self.bluetooth.set_advertisement(name="a_cr",
manufacturer_data="l",
service_data=mes)
self.bluetooth.advertise(True)
self.Tile_Transmit_Timer = 50
return -1
#Tells other robots to forget if a robot of an ID has been charged
def Call_Charge_Handled(self):
#Simplyt broadcasts nothing with the correct name
mes = "cH"
self.bluetooth.set_advertisement(name="a_ch",
manufacturer_data="l",
service_data=mes)
self.Tile_Transmit_Timer = 50
from secrets import WIFISSID, WIFIPASS
wdt = machine.WDT(timeout=300000)
py = Pysense()
mp = MPL3115A2(py,mode=ALTITUDE) # Returns height in meters. Mode may also be set to PRESSURE, returning a value in Pascals
si = SI7006A20(py)
lt = LTR329ALS01(py)
li = LIS2HH12(py)
bt = Bluetooth()
bt.set_advertisement(name="pycom")
bt.advertise(True)
while True:
wdt.feed()
bt.start_scan(10)
while bt.isscanning():
time.sleep_ms(100)
advs = bt.get_advertisements()
devices = set()
devicetypes = dict()
for adv in advs:
if adv.mac in devices:
continue
devices.add(adv.mac)
print("MAC: "+str(ubinascii.hexlify(adv.mac)))
print("RSSI: "+str(adv.rssi))
print("NameShort: "+str(bt.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_SHORT)))
print("NameComplete: "+str(bt.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)))
mfg_data = bt.resolve_adv_data(adv.data, Bluetooth.ADV_MANUFACTURER_DATA)
if mfg_data:
from network import Bluetooth
import machine
import socket
import pycom
import binascii
import network
from network import WLAN
from machine import RTC
bluetooth = Bluetooth()
bluetooth.set_advertisement(name="lopy2", manufacturer_data="lopy_v2")
bluetooth.start_scan(
-1) #Change to 10 to have it searching for 10 sec instead if forever
#bluetooth.stop_scan()
adv = None
bluetooth.advertise(True)
while True:
adv = bluetooth.get_adv()
if adv and bluetooth.resolve_adv_data(adv.data,
Bluetooth.ADV_NAME_CMPL) == 'lopy1':
try:
bluetooth.connect(adv.mac)
print(
bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_APPEARANCE))
print("Connected to device with addr = {}".format(
binascii.hexlify(adv.mac)))
#bluetooth.connect(adv.mac)
def BLEAndLoRaFun():
###### First, initialize as one LoRa node device ######
# initialize LoRa in LORAWAN mode.
# Please pick the region that matches where you are using the device:
# Asia = LoRa.AS923
# Australia = LoRa.AU915
# Europe = LoRa.EU868
# United States = LoRa.US915
lora = LoRa(mode=LoRa.LORAWAN, region=LoRa.US915)
# create an ABP authentication params
dev_addr = struct.unpack(">l", binascii.unhexlify('26021A14'))[0]
nwk_swkey = binascii.unhexlify('BB515D851353D2AB5ACCD112F0F2C597')
app_swkey = binascii.unhexlify('B74092CB7C5A79CAD681C384ABF925D2')
# remove all the channels
for channel in range(0, 72):
lora.remove_channel(channel)
# set all channels to the same frequency (must be before sending the OTAA join request)
for channel in range(0, 72):
lora.add_channel(channel,
frequency=config.LORA_FREQUENCY,
dr_min=0,
dr_max=3)
# join a network using ABP (Activation By Personalization)
lora.join(activation=LoRa.ABP, auth=(dev_addr, nwk_swkey, app_swkey))
# create a LoRa socket
s = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
# set the LoRaWAN data rate
s.setsockopt(socket.SOL_LORA, socket.SO_DR, 3) # last parameter is 3
# make the socket non-blocking
s.setblocking(False)
'''
###### 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:
print("Client connected")
pycom.rgbled(0x007f00) # green
elif events & Bluetooth.CLIENT_DISCONNECTED:
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', value=5)
#char1_read_counter = 0
def char1_cb_handler(chr):
#global char1_read_counter
#char1_read_counter += 1
global BLEConnectionCounter
events = chr.events()
if events & Bluetooth.CHAR_WRITE_EVENT:
print("Write request with value = {}".format(chr.value()))
else:
#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
char1_cb = chr1.callback(trigger=Bluetooth.CHAR_WRITE_EVENT | Bluetooth.CHAR_READ_EVENT, handler=char1_cb_handler)
'''
###### Third, set up BLE client service ######
bluetooth_client = Bluetooth()
#bluetooth_client.init(id=0, mode=Bluetooth.BLE, antenna=None)
bluetooth_client.start_scan(10)
#server_name1 = bluetooth_client.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL)
counter = 50
#while True:
while counter > 0:
print(counter)
counter -= 1
#Gets an named tuple with the advertisement data received during the scanning.
#The structure is (mac, addr_type, adv_type, rssi, data)
adv = bluetooth_client.get_adv()
#servermac = ''#save the serer mac
#use resolve_adv_data to resolve the 31 bytes of the advertisement message
#Here is problem: when disconnect from server, then adv will always be null...
#if get a valid advertisement from one server
if adv:
server_name = bluetooth_client.resolve_adv_data(
adv.data, Bluetooth.ADV_NAME_CMPL)
#print(server_name)
if checkValidServer(server_name):
try:
#Opens a BLE connection with the device specified by the mac_addr argument
#This function blocks until the connection succeeds or fails.
#print(adv.mac)
#global servermac#change servermac to global
#servermac = adv.mac
#counter += 1
conn = bluetooth_client.connect(adv.mac)
#print('connected?',conn.isconnected())
services = conn.services()
#print('This is service',services)
#print(services)
#Yunwei - it seems that only when the type of uuid is bytes then could read the data from server
for service in services:
time.sleep(0.050)
if type(service.uuid()) == bytes:
chars = service.characteristics()
for char in chars:
#check if the character properties is PROP_READ
properties = char.properties()
print('char properties is ' + str(properties))
if (properties & Bluetooth.PROP_READ):
print('char {} value = {}'.format(
char.uuid(), char.read()))
#Use LoRa to send the data out
#s.send(char.read())
time.sleep(2)
#10 & Bluetooth.PROP_WRITE
#10&Bluetooth.PROP_READ
if (properties & Bluetooth.PROP_WRITE):
print('write to server!')
char.write(b'x02')
time.sleep(2)
#Yunwei
conn.disconnect()
#bluetooth_client.deinit()
bluetooth_client.stop_scan()
time.sleep(3)
bluetooth_client.deinit()
print('deinit')
time.sleep(3)
bluetooth_client.init()
#if(bluetooth_client.isscanning()):
# bluetooth_client.stop_scan()
#bluetooth_client.deinit()
bluetooth_client.start_scan(10)
print('connected?', conn.isconnected())
#break
time.sleep(3)
gc.collect()
#if it's still scan, then need to stop scan first
#bluetooth_client.start_scan(-1)
'''
if(bluetooth_client.isscanning()):
bluetooth_client.stop_scan()
#then scan again
bluetooth_client.start_scan(-1)
'''
except:
print(
"Error while connecting or reading from the BLE device"
)
#break
time.sleep(1)
if (bluetooth_client.isscanning()):
bluetooth_client.stop_scan()
bluetooth_client.deinit()
time.sleep(1)
bluetooth_client.deinit()
time.sleep(1)
#init again
bluetooth_client.init(id=0,
mode=Bluetooth.BLE,
antenna=None)
bluetooth_client.start_scan(10)
else:
bluetooth_client.deinit()
time.sleep(1)
bluetooth_client.init()
time.sleep(1)
bluetooth_client.start_scan(10)
print('Scan again')
else:
print('adv is None!')
time.sleep(3)
'''
time.sleep(3)
#if it's still scan, then need to stop scan first
if(bluetooth_client.isscanning()):
bluetooth_client.stop_scan()
#then scan again
bluetooth_client.start_scan(-1)
'''
#bluetooth_client.stop_scan()
bluetooth_client.stop_scan()
bluetooth_client.deinit()
print('out of loop!')
class BLEScanner(object):
""" BLE scanner for beacons and tags data packages """
def __init__(self, max_list_items=25):
self._beacons = []
self._tags = []
self._max_list_items = max_list_items
self._ble = None
def start(self, timeout=-1):
""" Start beacon scanning """
log.info('Start scanning for beacons and tags')
if self._ble is None:
self._ble = Bluetooth()
self._ble.start_scan(timeout)
while self._ble.isscanning():
self.beacon_data_collect()
def stop(self):
""" Stop BLE """
log.info('Stop scanning for beacons and tags')
if self._ble:
self._ble.stop_scan()
#self._ble.deinit()
#self._ble = None
def set_max_list_items(self, max_list_items):
""" Set the max list items to return"""
self._max_list_items = max_list_items
def reset(self):
""" Reset the retrieved beacon/tag list during scanning """
log.info('Reset beacon/tag list')
self._beacons[:] = []
self._tags[:] = []
@property
def beacons(self):
""" Return the beacons found """
res = list(self._beacons) # make a copy
return res
@property
def tags(self):
""" Return the tags found """
res = list(self._tags) # make a copy
return res
def beacon_data_collect(self):
""" Collect the beacon data """
adv = self._ble.get_adv()
if adv:
if self._ble.resolve_adv_data(adv.data,
Bluetooth.ADV_NAME_CMPL) == "ITAG":
binitag = binascii.hexlify(adv[0])
tag = binitag.decode('UTF-8')
if tag not in self._tags:
log.debug('Found tag [{}]', tag)
self._tags.append(tag)
else:
# try to get the complete name only works with ibeacons
data = self._ble.resolve_adv_data(
adv.data, Bluetooth.ADV_MANUFACTURER_DATA)
if data:
# try to get the manufacturer data (Apple's iBeacon data is sent here)
bindata = binascii.hexlify(data)
beacon = bindata.decode('UTF-8')
# Check if beacon is in list
if beacon not in self._beacons:
log.debug('Found beacon [{}]', beacon)
self._beacons.append(beacon)
class BLEScanner:
def __init__(self, buffer_size):
"""Store buffer in given storage."""
self.beaconlist = []
self.beacontime = []
self.beaconrssi = []
self.beaconevents = []
self.beaconcount = []
self.timelastdata = time.time()
self.eventBuffer = RingBuffer(buffer_size)
self.bluetooth = Bluetooth()
def new_adv_event(self, event):
global beaconlist, beaconevents, timelastdata
if event.events() == Bluetooth.NEW_ADV_EVENT:
anydata = True
while anydata:
adv = self.bluetooth.get_adv()
if adv != None:
timelastdata = time.time()
devid = binascii.hexlify(adv[0]).decode('utf-8')
rssi = str(adv[3] * -1)
if devid not in self.beaconlist:
print('new device found {} @ {}'.format(
devid, timelastdata))
self.beaconlist.append(devid)
self.beacontime.append(timelastdata)
self.beaconrssi.append(rssi)
self.beaconcount.append(0)
#if len(beaconevents) > 20:
# beaconevents.pop(0)
#beaconevents.append([timelastdata, devid, rssi])
self.eventBuffer.add([timelastdata, devid, rssi, 0])
else:
#find index in array of this beacon and check the timelastdata
#update beaconrssi
#decide if stuff shoudl be pushed again
i = self.beaconlist.index(devid)
if self.timelastdata > (self.beacontime[i] + 300):
#update it
self.beacontime[i] = timelastdata
self.beaconrssi[i] = rssi
rx_count = self.beaconcount[i]
self.beaconcount[i] = self.beaconcount[i] + 1
#if len(beaconevents) > 20:
# beaconevents.pop(0)
#beaconevents.append([timelastdata, devid, rssi])
self.eventBuffer.add(
[timelastdata, devid, rssi, rx_count])
#print('Updated index {}'.format(i))
else:
anydata = False
def start_scan(self):
print('Starting BLE scan')
#bluetooth =
self.bluetooth.callback(trigger=Bluetooth.NEW_ADV_EVENT,
handler=self.new_adv_event)
self.bluetooth.init()
self.bluetooth.start_scan(-1)
def BLEAndLoRaFun():
#First, initialize as one LoRa node device
# initialize LoRa in LORAWAN mode.
# Please pick the region that matches where you are using the device:
# Asia = LoRa.AS923
# Australia = LoRa.AU915
# Europe = LoRa.EU868
# United States = LoRa.US915
lora = LoRa(mode=LoRa.LORAWAN, region=LoRa.US915)
# create an ABP authentication params
dev_addr = struct.unpack(">l", binascii.unhexlify('260214B3'))[0]
nwk_swkey = binascii.unhexlify('2C2139EEC68B264BF1F0EDCE183CE33F')
app_swkey = binascii.unhexlify('C25FB9A263307BF86B659298D86D4A45')
# remove all the channels
for channel in range(0, 72):
lora.remove_channel(channel)
# set all channels to the same frequency (must be before sending the OTAA join request)
for channel in range(0, 72):
lora.add_channel(channel,
frequency=config.LORA_FREQUENCY,
dr_min=0,
dr_max=3)
# join a network using ABP (Activation By Personalization)
lora.join(activation=LoRa.ABP, auth=(dev_addr, nwk_swkey, app_swkey))
# create a LoRa socket
s = socket.socket(socket.AF_LORA, socket.SOCK_RAW)
# set the LoRaWAN data rate
s.setsockopt(socket.SOL_LORA, socket.SO_DR, 3) # last parameter is 3
# make the socket non-blocking
s.setblocking(False)
#Second, act as BLE client
bt = Bluetooth()
bt.start_scan(-1)
counter = 0
while True:
#Gets an named tuple with the advertisement data received during the scanning.
#The structure is (mac, addr_type, adv_type, rssi, data)
adv = bt.get_adv()
#servermac = ''#save the serer mac
#use resolve_adv_data to resolve the 31 bytes of the advertisement message
#Here is problem: when disconnect from server, then adv will always be null...
if adv and bt.resolve_adv_data(
adv.data, Bluetooth.ADV_NAME_CMPL) == 'LoPyServer1':
try:
#Opens a BLE connection with the device specified by the mac_addr argument
#This function blocks until the connection succeeds or fails.
#print(adv.mac)
#global servermac#change servermac to global
#servermac = adv.mac
counter += 1
conn = bt.connect(adv.mac)
#print('connected?',conn.isconnected())
services = conn.services()
#print('This is service',services)
#print(services)
'''
for service in services:
print('This is service uuid',service.uuid())
time.sleep(0.050)
if type(service.uuid()) == bytes:
print('if bytes:Reading chars from service = {}'.format(service.uuid()))
else:
print('if not bytes: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()))
'''
#Yunwei - it seems that only when the type of uuid is bytes then could read the data from server
for service in services:
time.sleep(0.050)
if type(service.uuid()) == bytes:
chars = service.characteristics()
for char in chars:
#check if the character properties is PROP_READ
if (char.properties() & Bluetooth.PROP_READ):
print('char {} value = {}'.format(
char.uuid(), char.read()) + str(counter))
#Use LoRa to send the data out
s.send(char.read())
time.sleep(4)
#Yunwei
conn.disconnect()
print('connected?', conn.isconnected())
#break
time.sleep(6)
bt.start_scan(-1)
except:
print("Error while connecting or reading from the BLE device")
#break
time.sleep(1)
bt.start_scan(-1)
print('Scan again')
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")
def checkId():
print("BEACON ID", beaconId)
if beaconId != "":
if str.encode(beaconId) in dangerAreas:
del dangerAreas[str.encode(beaconId)]
bluetooth = Bluetooth()
bluetooth.start_scan(10)
while bluetooth.isscanning():
adv = bluetooth.get_adv()
if adv:
# try to get the complete name
#print(bluetooth.resolve_adv_data(adv.data, Bluetooth.ADV_NAME_CMPL))
if (adv.rssi > -63):
mfg_data = adv.mac #bluetooth.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)
#print(ubinascii.hexlify(mfg_data))
tempIdValue = ubinascii.hexlify(
bluetooth.resolve_adv_data(
adv.data, Bluetooth.ADV_MANUFACTURER_DATA))
time.sleep(2)
print(tempIdValue)
if (tempIdValue == str.encode(beaconId)):
print("you have arrived", adv.rssi)
break
else:
if ubinascii.hexlify(
bluetooth.resolve_adv_data(
adv.data, Bluetooth.
ADV_MANUFACTURER_DATA)) in dangerAreas:
p_out.value(1) #Vibrate the motor
time.sleep(2)
p_out.value(0)
time.sleep(3)
if (len(locations) > 0):
if (dangerAreas[ubinascii.hexlify(
bluetooth.resolve_adv_data(
adv.data, Bluetooth.
ADV_MANUFACTURER_DATA))] !=
locations[-1]):
locations.append(
dangerAreas[ubinascii.hexlify(
bluetooth.resolve_adv_data(
adv.data, Bluetooth.
ADV_MANUFACTURER_DATA))])
print("location: ", locations[-1])
time.sleep(3)
break
else:
locations.append(
ubinascii.hexlify(
bluetooth.resolve_adv_data(
adv.data, Bluetooth.
ADV_MANUFACTURER_DATA)))
print("location: ", locations[-1])
time.sleep(3)
break
print("Location size ", len(locations))
print(
"Data of danger device",
ubinascii.hexlify(
bluetooth.resolve_adv_data(
adv.data,
Bluetooth.ADV_MANUFACTURER_DATA)),
" strength ", adv.rssi)
else:
print(
"Data of device",
ubinascii.hexlify(
bluetooth.resolve_adv_data(
adv.data,
Bluetooth.ADV_MANUFACTURER_DATA)),
" strength ", adv.rssi)
else:
continue
else:
print("No beaconId")
def BLEClientTest():
bluetooth_client = Bluetooth()
bluetooth_client.start_scan(-1)
adv = bluetooth_client.get_adv()
server_name = bluetooth_client.resolve_adv_data(adv.data,
Bluetooth.ADV_NAME_CMPL)
""" Client qui essaie de se connecter au serveur"""
from network import Bluetooth
import time
bt = Bluetooth()
bt.start_scan(5)
def Bluetooth_loo():
adv = bt.get_adv()
if adv and bt.resolve_adv_data(adv.data,
Bluetooth.ADV_NAME_CMPL) == 'Glucose':
try:
print("Connection...")
conn = bt.connect(adv.mac)
print("Connected, starting reading service...")
services = conn.services()
print("Service readed ....")
for service in services:
time.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()
return
#=============================================================================== # This is a simple script that will provide a value to be read over BLE # # For macOS you can use the LightBlue app to observe # # service characteristics are a maximum 2 bytes in size (i.e. 0xFFFF is the max value) #=============================================================================== from network import Bluetooth import pycom import machine #=============================================================================== 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):
def extractHumidity(data):
return data[1] * 0.5
def extractPressure(data):
pres = (data[4] << 8) + data[5] + 50000
return pres / 100
sendData.connectLocalBox('/flash/config.json')
rtc = RTC()
rtc.ntp_sync('fr.pool.ntp.org')
bt = Bluetooth()
try:
bt.start_scan(-1)
except:
bt.stop_scan()
bt.start_scan(-1)
while True:
try:
adv = bt.get_adv()
if adv:
data = str(adv.data, "utf-8")
data = str(data.split("#")[1][:8], "utf-8")
data = ubinascii.a2b_base64(data)
temperature = extractTemperature(data)
humidity = extractHumidity(data)
pressure = extractPressure(data)
id = str(ubinascii.hexlify(adv.mac), "utf-8")
from network import Bluetooth
import time
bt = Bluetooth()
bt.stop_scan()
bt.start_scan(-1)
while True:
adv = bt.get_adv()
print(adv)
if adv:
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_NAME_CMPL))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_NAME_SHORT))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_FLAG))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_16SRV_PART))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_T16SRV_CMPL))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_32SRV_PART))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_32SRV_CMPL))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_128SRV_PART))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_128SRV_CMPL))
print('data %s' % bt.resolve_adv_data(adv.data, bt.ADV_TX_PWR))
time.sleep(4)
if adv and bt.resolve_adv_data(adv.data,
Bluetooth.ADV_NAME_CMPL) == 'Heart Rate':
conn = bt.connect(adv.mac)
services = conn.services()
for service in services:
time.sleep(0.050)
if type(service.uuid()) == bytes:
print('Reading chars from service = {}'.format(service.uuid()))
else:
print("init")
bt = Bluetooth() # antenna=Bluetooth.EXT_ANT)
bt.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED
| Bluetooth.CHAR_READ_EVENT | Bluetooth.CHAR_WRITE_EVENT
| Bluetooth.NEW_ADV_EVENT | Bluetooth.CLIENT_CONNECTED
| Bluetooth.CLIENT_DISCONNECTED | Bluetooth.CHAR_NOTIFY_EVENT,
handler=bt_event_cb)
time.sleep(1)
scan_timeout_s = 2 # how long do we scan. if you want to trace then it should be long!
track_timeout_s = 10 # after how long do we
total_adv_ct = 0
last_adv_time = None
try:
print("start_scan")
bt.start_scan(scan_timeout_s)
except Exception as e:
print("cannot start_scan", e)
print("stop_scan")
bt.stop_scan()
print("start_scan again")
bt.start_scan(scan_timeout_s)
# Adv is a dict of advertisements, ie list of scan results
# Adv[mac] = advertisment
Adv = {}
# Periods is a dictionary of a list of periods
# Periods[mac] = [ [start,end,rssi], [], ... ]
# for each mac (device) we have ever seen we record the periods (start, end, rssi)
Periods = {}