Get Client Mac Address in GATTSService/Characteristic

[neilh93]

I'm connecting to my LoPy using my Android phone and the app "BLE Scanner".

I would like to be able to print the MAC address of my Android phone once i try to read on a characteristic but i'm unsure how this is done using GATTSService/Characteristic.

from network import Bluetooth

bluetooth = Bluetooth()
bluetooth.set_advertisement(name='LoPy', service_uuid=b'1234567890123456')

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=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:
		if char1_read_counter < 3:
			print(bluetooth.client(mac_adder)) #print phone MAC address??
		else:
			return 'ABC DEF'

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)

[ledbelly2142]

I am having some issues with Bluetooth and the GATTSService/Characteristic, can't write multiple values.

Are you able to write multiple values?

[neilh93]

@ledbelly2142 I can write multiple times from the app on my phone to the Characteristic if that's what you mean?

are you writing values from a mobile app? or do you want multiple values per characteristic? because as far as i am aware each characteristic has a single value and you can create multiple characteristics.

[ledbelly2142]

We created a service with multiple characteristics but could only see the first characteristic using BLE scanner.