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add LE advertisement and HR service

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This commit is contained in:
Gilles Boccon-Gibod
2025-05-04 11:31:15 -07:00
parent 6926d5cb70
commit 57fbad6fa4
1 changed files with 28 additions and 18 deletions
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46
apps/pair.py
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@@ -36,6 +36,8 @@ from bumble.core import (
from bumble.gatt import (
GATT_DEVICE_NAME_CHARACTERISTIC,
GATT_GENERIC_ACCESS_SERVICE,
GATT_HEART_RATE_SERVICE,
GATT_HEART_RATE_MEASUREMENT_CHARACTERISTIC,
Service,
Characteristic,
CharacteristicValue,
@@ -225,15 +227,6 @@ def read_with_error(connection):
raise ATT_Error(ATT_INSUFFICIENT_AUTHENTICATION_ERROR)
def write_with_error(connection, _value):
if not connection.is_encrypted:
raise ATT_Error(ATT_INSUFFICIENT_ENCRYPTION_ERROR)
if not AUTHENTICATION_ERROR_RETURNED[1]:
AUTHENTICATION_ERROR_RETURNED[1] = True
raise ATT_Error(ATT_INSUFFICIENT_AUTHENTICATION_ERROR)
# -----------------------------------------------------------------------------
def on_connection(connection, request):
print(color(f'<<< Connection: {connection}', 'green'))
@@ -332,16 +325,13 @@ async def pair(
device.le_enabled = True
device.add_service(
Service(
'50DB505C-8AC4-4738-8448-3B1D9CC09CC5',
GATT_HEART_RATE_SERVICE,
[
Characteristic(
'552957FB-CF1F-4A31-9535-E78847E1A714',
Characteristic.Properties.READ
| Characteristic.Properties.WRITE,
Characteristic.READABLE | Characteristic.WRITEABLE,
CharacteristicValue(
read=read_with_error, write=write_with_error
),
GATT_HEART_RATE_MEASUREMENT_CHARACTERISTIC,
Characteristic.Properties.READ,
Characteristic.READ_REQUIRES_AUTHENTICATION,
bytes(1),
)
],
)
@@ -437,7 +427,27 @@ async def pair(
else:
if mode == 'le':
# Advertise so that peers can find us and connect
# Advertise so that peers can find us and connect.
# Include the heart rate service UUID in the advertisement data
# so that devices like iPhones can show this device in their
# Bluetooth selector.
device.advertising_data = bytes(
AdvertisingData(
[
(
AdvertisingData.FLAGS,
bytes(
[AdvertisingData.LE_GENERAL_DISCOVERABLE_MODE_FLAG]
),
),
(AdvertisingData.COMPLETE_LOCAL_NAME, 'Bumble'.encode()),
(
AdvertisingData.INCOMPLETE_LIST_OF_16_BIT_SERVICE_CLASS_UUIDS,
bytes(GATT_HEART_RATE_SERVICE),
),
]
)
)
await device.start_advertising(auto_restart=True)
else:
# Become discoverable and connectable