def adv_stop_cb(data):
global pdu_count, adv_content
print("Advertising stopped")
adv_content = (adv_content + 1) % 3
if adv_content == 0:
# advertise UID
interval = 100
timeout = 10000
elif adv_content == 1:
# advertise URL
interval = 100
timeout = 15000
else:
# advertise TLM
interval = 100
timeout = 150
pdu_count += 1
payloads[2] = bb.eddy_encode_tlm(battery_level, temperature, pdu_count,
uptime.get() /
1000) # TLM Eddystone payload
payload = payloads[adv_content]
ble.advertising(interval,
timeout=timeout,
payload=payload,
mode=ble.ADV_UNCN_UND)
ble.start_advertising()
print("Advertising restarted with", ble.btos(payload))
# Configure security. BLE security is very flexible.
# In this case we declare that the device has only an output capability (CAP_DISPLAY_ONLY),
# that we require a bonding (storage of the keys after pairing)
# and that we want both secure connection and main in the middle protection.
# Since we have CAP_DISPLAY_ONLY, we also declare a passkey that will be shown to the user
# to be entered on the master (i.e. the smartphone) to finalize the bonding.
ble.security(capabilities=ble.CAP_DISPLAY_ONLY,
bonding=ble.AUTH_BOND,
scheme=ble.AUTH_SC | ble.AUTH_MITM,
key_size=16,
passkey=225575)
# To do so, we need a callback to display the passkey when needed
ble.add_callback(ble.EVT_SHOW_PASSKEY, show_key_cb)
# Setup advertising to 50ms
ble.advertising(50)
# Start the BLE stack
ble.start()
# Now start advertising
ble.start_advertising()
except Exception as e:
print(e)
# loop forever
while True:
print(".")
if random(0, 100) < 50 and notifications_enabled and connected:
value = bytearray(cn.get_value())
#import the ESP32 BLE driver: a BLE capable VM is also needed!
from espressif.esp32ble import esp32ble as bledrv
# then import the BLE module and beacons
from wireless import ble
from wireless import ble_beacons as bb
streams.serial()
try:
# initialize BLE driver
bledrv.init()
# Set GAP name and no security
ble.gap("Zerynth",security=(ble.SECURITY_MODE_1,ble.SECURITY_LEVEL_1))
# set advertising options: advertise every second with custom payload in non connectable undirected mode
ble.advertising(20,payload=bb.ibeacon_encode("fb0b57a2-8228-44cd-913a-94a122ba1206",10,3,-69),mode=ble.ADV_UNCN_UND)
# Start the BLE stack
ble.start()
# Now start advertising
ble.start_advertising()
except Exception as e:
print(e)
# loop forever
while True:
print(".")
sleep(10000)
ble.start_advertising()
print("Advertising restarted with", ble.btos(payload))
try:
# initialize BLE driver
bledrv.init()
# Set GAP name and no security
ble.gap("Zerynth", security=(ble.SECURITY_MODE_1, ble.SECURITY_LEVEL_1))
ble.add_callback(ble.EVT_ADV_STOPPED, adv_stop_cb)
# set advertising options: advertise every second with custom payload in non connectable undirected mode
# after 10 seconds, stop and change payload
ble.advertising(100,
timeout=10000,
payload=payloads[adv_content],
mode=ble.ADV_UNCN_UND)
# Start the BLE stack
ble.start()
# Now start scanning for 30 seconds
ble.start_advertising()
except Exception as e:
print(e)
# loop forever
while True:
print(".")
sleep(10000)