def nrf_uuid_to_uuid(self, nrf_uuid):
"""
:type nrf_uuid: BLEUUID
:rtype: Uuid
"""
if nrf_uuid.base.type == 0:
raise ValueError("UUID Not registered: {}".format(nrf_uuid))
if nrf_uuid.base.type == nrf_types.BLEUUIDBase.BLE_UUID_TYPE_BLE:
return Uuid16(nrf_uuid.get_value())
base = None
for uuid_base in self.registered_vs_uuids:
if nrf_uuid.base.type == uuid_base.type:
base = uuid_base
if base is None:
raise ValueError("Unable to find registered 128-bit uuid: {}".format(nrf_uuid))
return Uuid128.combine_with_base(nrf_uuid.value, base.base)
MATH_SERVICE_UUID = Uuid128("deadbeef-0011-2345-6679-ab12ccd4f550")
# Hex conversion characteristic. A central writes a byte sequence to this characteristic
# and the peripheral will convert it to its hex representation. e.g. "0123" -> "30313233"
HEX_CONVERT_CHAR_UUID = MATH_SERVICE_UUID.new_uuid_from_base(0xbeaa)
# Counting characteristic. The peripheral will periodically send out a notification on this characteristic
# With a monotonically-increasing, 4-byte little-endian number
COUNTING_CHAR_UUID = MATH_SERVICE_UUID.new_uuid_from_base("1234")
# Properties for the hex conversion and counting characteristics
HEX_CONVERT_CHAR_PROPERTIES = gatts.GattsCharacteristicProperties(
read=True,
notify=True,
indicate=True,
write=True,
max_length=128,
variable_length=True)
COUNTING_CHAR_PROPERTIES = gatts.GattsCharacteristicProperties(
read=False, notify=True, max_length=4, variable_length=False)
# Time service, report's the current time. Also demonstrating another wait to create a UUID
_TIME_SERVICE_BASE_UUID = "beef0000-0123-4567-89ab-cdef01234567"
TIME_SERVICE_UUID = Uuid128.combine_with_base("dead", _TIME_SERVICE_BASE_UUID)
# Time characteristic. When read, reports the peripheral's current time in a human-readable string
TIME_CHAR_UUID = TIME_SERVICE_UUID.new_uuid_from_base("dddd")
# Properties for the time characteristic
TIME_CHAR_PROPERTIES = gatts.GattsCharacteristicProperties(
read=True, max_length=30, variable_length=True)