The GATT Client is the device that requests data from the server, otherwise known as the master device (commonly this might be a phone/tablet/PC). All transactions are initiated by the master, which receives a response from the slave.
Closes the BLE connection. Returns None.
Returns True if the connection is still open. False otherwise.
Example:
from network import Bluetooth
import ubinascii
bluetooth = Bluetooth()
# scan until we can connect to any BLE device around
bluetooth.start_scan(-1)
adv = None
while True:
adv = bluetooth.get_adv()
if adv:
try:
bluetooth.connect(adv.mac)
except:
# start scanning again
bluetooth.start_scan(-1)
continue
break
print("Connected to device with addr = {}".format(ubinascii.hexlify(adv.mac)))
Performs a service search on the connected BLE peripheral (server) a returns a list containing objects of the class GATTCService if the search succeeds.
Example:
# assuming that a BLE connection is already open
services = connection.services()
print(services)
for service in services:
print(service.uuid())
