All Questions
Tagged with bluetooth-gatt gatttool
8
questions
1
vote
3
answers
2k
views
Not working acquire-write for Read/Write characteristic in Bluetoothctl
I connected to smart watch via bluetoothctl. I listed all attribute. Then got info for target UUID (6e400002-b5a3-f393-e0a9-e50e24dcca9e). I saw it has both read and write capability (Read/Write). I ...
- 11
1
vote
0
answers
113
views
Gatttool lost notifications
I am working with a BLE device that currently sends sequential values when subscribing to a notify characteristic. Each returned value starts with f083 and ends with 0000 with each hex value in ...
- 2,200
2
votes
2
answers
3k
views
Light Weight Bluetooth LE library in C
I have been looking around for a simple Bluetooth LE library in C that allows me to scan for BLE devices, connect and receive periodic notifications from a given service UUID from the BLE device. ...
- 131
0
votes
1
answer
5k
views
Intermittently getting connect error: Function not implemented (38) when connecting with gatttool
I'm working on a project where I need to get data from a BLE environmental sensor onto a raspberry pi and send it to a server at regular intervals. The more often I can send, the better. I found a ...
- 21
2
votes
1
answer
2k
views
pygatt: Unable to execute device.subscribe()
I am trying to subscribe to a GATT characteristic.
I have set the "Indicate", "Notify" and "Read" attributes for the GATT characteristic in my BLE device.
I am able to connect to my BLE device and ...
- 533
2
votes
1
answer
2k
views
Cannot read/write to characteristics in BLE
I have a BLED112 dongle and a BLE device which contains a GATT profile with Services-Characteristics.
I have installed pygatt to communicate with my BLE device.
Following is my python code to connect ...
- 533
0
votes
2
answers
7k
views
How to find handles corresponding to different UUIDs of BLE devices
Using gattool, I am able to find the UUIDs correspoing to the handles of my smartwatch as follows:
Device: MAC address
Name: MS1020
Alias: MS1020
Paired: yes
Trusted: yes
Blocked: no
Connected: no
...
- 1,223
0
votes
1
answer
902
views
BLE gatttool reading serial data from bluno?
I am trying to send data over BLE from Bluno to a Raspberry Pi (Raspian), bluez 5.50.
Whilst the connection seems to be fine. I am struck in a point where am unable to retrieve serial data from ...
- 125