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# Test BLE GAP device name get/set
from micropython import const
import time, machine, bluetooth
TIMEOUT_MS = 5000
_IRQ_CENTRAL_CONNECT = const(1 << 0)
_IRQ_CENTRAL_DISCONNECT = const(1 << 1)
_IRQ_PERIPHERAL_CONNECT = const(1 << 6)
_IRQ_PERIPHERAL_DISCONNECT = const(1 << 7)
_IRQ_GATTC_CHARACTERISTIC_RESULT = const(1 << 9)
_IRQ_GATTC_READ_RESULT = const(1 << 11)
GAP_DEVICE_NAME_UUID = bluetooth.UUID(0x2A00)
last_event = None
last_data = None
value_handle = 0
def irq(event, data):
global last_event, last_data, value_handle
last_event = event
last_data = data
if event == _IRQ_CENTRAL_CONNECT:
print("_IRQ_CENTRAL_CONNECT")
elif event == _IRQ_CENTRAL_DISCONNECT:
print("_IRQ_CENTRAL_DISCONNECT")
elif event == _IRQ_PERIPHERAL_CONNECT:
print("_IRQ_PERIPHERAL_CONNECT")
elif event == _IRQ_PERIPHERAL_DISCONNECT:
print("_IRQ_PERIPHERAL_DISCONNECT")
elif event == _IRQ_GATTC_CHARACTERISTIC_RESULT:
if data[-1] == GAP_DEVICE_NAME_UUID:
print("_IRQ_GATTC_CHARACTERISTIC_RESULT", data[-1])
value_handle = data[2]
elif event == _IRQ_GATTC_READ_RESULT:
print("_IRQ_GATTC_READ_RESULT", data[-1])
def wait_for_event(event, timeout_ms):
t0 = time.ticks_ms()
while time.ticks_diff(time.ticks_ms(), t0) < timeout_ms:
if isinstance(event, int):
if last_event == event:
break
elif event():
break
machine.idle()
# Acting in peripheral role.
def instance0():
multitest.globals(BDADDR=ble.config("mac"))
# Test setting and getting the GAP device name before registering services.
ble.config(gap_name="GAP_NAME")
print(ble.config("gap_name"))
# Create an empty service and start advertising.
ble.gatts_register_services([])
print("gap_advertise")
multitest.next()
try:
# Do multiple iterations to test changing the name.
for iteration in range(2):
# Set the GAP device name and start advertising.
ble.config(gap_name="GAP_NAME{}".format(iteration))
print(ble.config("gap_name"))
ble.gap_advertise(20_000)
# Wait for central to connect, then wait for it to disconnect.
wait_for_event(_IRQ_CENTRAL_CONNECT, TIMEOUT_MS)
wait_for_event(_IRQ_CENTRAL_DISCONNECT, 4 * TIMEOUT_MS)
if last_event != _IRQ_CENTRAL_DISCONNECT:
return
finally:
ble.active(0)
# Acting in central role.
def instance1():
multitest.next()
try:
for iteration in range(2):
# Wait for peripheral to start advertising.
time.sleep_ms(500)
# Connect to peripheral.
print("gap_connect")
ble.gap_connect(0, BDADDR)
wait_for_event(_IRQ_PERIPHERAL_CONNECT, TIMEOUT_MS)
if last_event != _IRQ_PERIPHERAL_CONNECT:
return
conn_handle, _, _ = last_data
if iteration == 0:
print("gattc_discover_characteristics")
ble.gattc_discover_characteristics(conn_handle, 1, 65535)
wait_for_event(lambda: value_handle, TIMEOUT_MS)
# Wait for all characteristic results to come in (there should be an event for it).
time.sleep_ms(500)
# Read the peripheral's GAP device name.
print("gattc_read")
ble.gattc_read(conn_handle, value_handle)
wait_for_event(_IRQ_GATTC_READ_RESULT, TIMEOUT_MS)
# Disconnect from peripheral.
print("gap_disconnect:", ble.gap_disconnect(conn_handle))
wait_for_event(_IRQ_PERIPHERAL_DISCONNECT, TIMEOUT_MS)
if last_event != _IRQ_PERIPHERAL_DISCONNECT:
return
finally:
ble.active(0)
ble = bluetooth.BLE()
ble.active(1)
ble.irq(irq)
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