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# Test BLE GAP connect/disconnect
from micropython import const
import time, machine, bluetooth
TIMEOUT_MS = 4000
_IRQ_CENTRAL_CONNECT = const(1)
_IRQ_CENTRAL_DISCONNECT = const(2)
_IRQ_PERIPHERAL_CONNECT = const(7)
_IRQ_PERIPHERAL_DISCONNECT = const(8)
central_connected = False
central_disconnected = False
peripheral_connected = False
peripheral_disconnected = False
conn_handle = None
def irq(event, data):
global central_connected, central_disconnected, peripheral_connected, peripheral_disconnected, conn_handle
if event == _IRQ_CENTRAL_CONNECT:
print("_IRQ_CENTRAL_CONNECT")
central_connected = True
conn_handle = data[0]
elif event == _IRQ_CENTRAL_DISCONNECT:
print("_IRQ_CENTRAL_DISCONNECT")
central_disconnected = True
elif event == _IRQ_PERIPHERAL_CONNECT:
print("_IRQ_PERIPHERAL_CONNECT")
peripheral_connected = True
conn_handle = data[0]
elif event == _IRQ_PERIPHERAL_DISCONNECT:
print("_IRQ_PERIPHERAL_DISCONNECT")
peripheral_disconnected = True
remote_addr = data[0]
def wait_for(fn, timeout_ms):
t0 = time.ticks_ms()
while time.ticks_diff(time.ticks_ms(), t0) < timeout_ms:
if fn():
return True
machine.idle()
return False
# Acting in peripheral role.
def instance0():
global central_connected, central_disconnected
multitest.globals(BDADDR=ble.config("mac"))
print("gap_advertise")
ble.gap_advertise(20_000, b"\x02\x01\x06\x04\xffMPY")
multitest.next()
try:
# Wait for central to connect, then wait for it to disconnect.
if not wait_for(lambda: central_connected, TIMEOUT_MS):
return
if not wait_for(lambda: central_disconnected, TIMEOUT_MS):
return
central_connected = False
central_disconnected = False
# Start advertising again.
print("gap_advertise")
ble.gap_advertise(20_000, b"\x02\x01\x06\x04\xffMPY")
# Wait for central to connect, then disconnect it.
if not wait_for(lambda: central_connected, TIMEOUT_MS):
return
print("gap_disconnect:", ble.gap_disconnect(conn_handle))
if not wait_for(lambda: central_disconnected, TIMEOUT_MS):
return
finally:
ble.active(0)
# Acting in central role.
def instance1():
global peripheral_connected, peripheral_disconnected
multitest.next()
try:
# Connect to peripheral and then disconnect.
print("gap_connect")
ble.gap_connect(*BDADDR)
if not wait_for(lambda: peripheral_connected, TIMEOUT_MS):
return
print("gap_disconnect:", ble.gap_disconnect(conn_handle))
if not wait_for(lambda: peripheral_disconnected, TIMEOUT_MS):
return
peripheral_connected = False
peripheral_disconnected = False
# Wait for peripheral to start advertising again.
time.sleep_ms(100)
# Connect to peripheral and then let the peripheral disconnect us.
print("gap_connect")
ble.gap_connect(*BDADDR)
if not wait_for(lambda: peripheral_connected, TIMEOUT_MS):
return
if not wait_for(lambda: peripheral_disconnected, TIMEOUT_MS):
return
finally:
ble.active(0)
ble = bluetooth.BLE()
ble.active(1)
ble.irq(irq)
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