Connect Lopy to Windows over BLE

[Anja Keller]

Hey, i could use some help.

I am traying to send pysense data to my Windows Pc from BLE.

My first problem is i see the Lopy and i can connect him. But a few second later the Lopy disconnected.

And the secouns Problem is the GATT service what is to do with the uuid and the characteristic?

This is my code:
from network import Bluetooth

pycom.rgbled(0x00008b) # blue

#Bluetooth initialisierung

bluetooth = Bluetooth()
bluetooth.set_advertisement(name='LoPy', service_uuid=b'1234567890123456')

def conn_cb (bt_o):
events = bt_o.events() # this method returns the flags and clears the internal registry
if events & Bluetooth.CLIENT_CONNECTED:
print("Client connected")
pycom.rgbled(0x00ff00)
elif events & Bluetooth.CLIENT_DISCONNECTED:
print("Client disconnected")
pycom.rgbled(0xFF0000)

bluetooth.callback(trigger=Bluetooth.CLIENT_CONNECTED | Bluetooth.CLIENT_DISCONNECTED, handler=conn_cb)

bluetooth.advertise(True)

srv1 = bluetooth.service(uuid=b'1223190123456', isprimary=True)
chr1 = srv1.characteristic(uuid=b'ab3451230123456', value=5)
while True:
print("Send Data")
chr1.value("here is the data need to be send it should be a very very long string")
time.sleep(3.050)

def char1_cb_handler(chr, data):

# The data is a tuple containing the triggering event and the value if the event is a WRITE event.
# We recommend fetching the event and value from the input parameter, and not via characteristic.event() and characteristic.value()
events, value = data
if  events & Bluetooth.CHAR_WRITE_EVENT:
    print("Write request with value = {}".format(value))
else:
    print('Read request on char 1')