@jmarcelino SOLVED Thanks for the help. Was able to adapt the example to connect to my Lopy and get a specific service with no issues. Some tips for anybody else trying to do access a GATT service. If you use the Pycom example it will print out a services.uuid like this b'\xdet-\xf0p\x13\x12\xb5DK\xb1\xc5 \xff\x95\xa4' . But if you are trying to access the service using the UUID as it appears it will not work. So what I did (as suggested by jmarcelino) was use binascii.hexlify to get a hex value. Which in this case was -----de742df0701312b5444bb1c520ff95a4' ,then use that as the value with binascci.unhexlify as the uuid input like this service.uuid()==binascii.unhexlify(b'de742df0701312b5444bb1c520ff95a4'): Another way to get the uuid is to use the Android Nordic Semiconductor nRF Connect app (or similar) to get the hex value for the UUID and then use unhexlify as above.

Even with an External Antenna the BLE seems to have quite some problems. Sometimes it doesnt find anyhting at all.

@wituwitu Did you find a way to solve this problem ? I'm having the same issue, I'm pretty sure I'm doing something wrong but I cannot find a solution

@kutysam Hmm ok! One of our engineers is having a look at it today so I'll keep you posted!

Have started on issue on this in github https://github.com/pycom/pycom-micropython-sigfox/issues/37

Any news to HomeKit Integration?

Hi @cylex, Could you please update to the latest firmware? Version 1.7.0b1 introduced a number of fixes for the BLE code examples. You can check what version of firmware that your device is currently running by using the commands from the REPL import os os.uname() Thanks! Alex

@scott Thank you for you reply. I tested the server side notifications yesterday and my first tests worked so it looks good so far.

Yes. I disable the heartbeat and set a color as part of the BLE initialization.

@tainanfish You might be surprised what LoRa can do (and remember in LoRa you CAN set the TX power) but if the question is just cost, then the GPS will be about the same ($8 for a GPS module, same as a LoRa module) To me the problem with GPS is it's even higher power consumption than WiFi.

@iber LoPy currently only supports Bluetooth LE GATT protocol which in simple terms is a key/value read+write protocol (like a simple database) and ill suited for streaming serialized data like JSON. You should however be able to make your mobile app write to Bluetooth LE characteristics on the LoPy which then set the WiFi and password. The GATTS example should give you the right idea: https://docs.pycom.io/pycom_esp32/library/network.Bluetooth.html#network.characteristic.events

@nagarjuna-reddy same here

My lopy4 arrived and i tested with it, too, although i was pretty sure it wouldn't make a difference. It didn't, it does the same thing. I left my lopy running since yesterday noon and from 270 readings, 223 were correct. So that's around 17-18% loss.

@redimo Good luck. Thanks for the update. We scan BLE for 10 seconds then delete/restart the ble object. I'm noting there are maybe 3 updates we've not tried yet for BLE reliability. Maybe they are better? Very interested in how it works for you.