def print_out_services(self):
"""Walks through all self.servies printing out the uuids and their
names. Should only be called *after* services_resolved() has been
called."""
print("RESOLVED SERVICES:")
for s in self.services:
print(s.uuid, " " + ser_to_name.get(s.uuid[4:8], "Unknown"))
if s.characteristics:
for c in s.characteristics:
print(" -", c.uuid,
char_to_name.get(c.uuid[4:8], "Unknown"))
def characteristic_value_updated(self, characteristic, value):
"Callback after reading a value or notification of value"
if characteristic.uuid == self._UUID_CHARACTER_FIRMWARE_VER:
print("Firmware version:", value.decode("utf-8"))
elif characteristic.uuid == self._UUID_CHARACTER_BAT_LVL:
print("Battery level:", value[0])
elif characteristic.uuid == self._UUID_CHARACTER_HR_MEASURE:
# TODO: There is much more information. See example code.
print("HR Rec:", value[1])
self.register(value[1])
else:
print(
"Unrecognised value:", value, "from:", characteristic.uuid,
char_to_name.get(characteristic.uuid[4:8],
"Char name unrecognised."))