All Questions
Tagged with bluetooth-gatt android-studio
9
questions
0
votes
0
answers
28
views
Send first message from peripherals to centrals in android
I have successfully establish a connection and normally I can able to communicate between each other but in my case I need to send a message to the centrals when in onConnectionStateChange callback ...
- 1
1
vote
0
answers
222
views
Bluetooth Low Energy (BLE) Bluetooth Address Randomisation
I am planning to code an application that has the capability of scanning advertising beacons around me and complete a BLE handshake with these beacons. (Basically central and peripheral functions). ...
- 27
0
votes
0
answers
63
views
Arduino not receiving Bluetooth GATT signal
On my android studio app, I have a button that when pressed, sends a "go" signal and on release sends a "stop" signal.
When you hold the button down and then release it works fine ...
- 11
2
votes
1
answer
453
views
Android app keeps going back to main activity UI when I try to display something using an adapter on the current activity
I am very new to android development and am building an app that can read characteristics from a BLE device. I am able to connect to a device and read its characteristics. However, I have a problem is ...
- 169
0
votes
1
answer
687
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Android Studio Wear Os application can't be installed INSTALL_PARSE_FAILED_NO_CERTIFICATES
I'm new in the the magic world of Android Studio. I'm trying to develop a simple Wear Os application to scan the near Bluetooth devices.
MainActivity.java
package com.firstapp.testble;
import android....
- 3
0
votes
1
answer
801
views
BluetoothGattCharacteristic.value returns empty value
I am trying to parse a value of a BluetoothGattCharacteristic to another activity. I can read the characteristic successfully, but then the value it gives me is empty...
I am trying to read the device ...
- 47
0
votes
0
answers
27
views
Wrong data sent while Bluetoothgatt.writecharacterstic
My android device is connected to a BLE dongle. The BLE Dongle is sending me messages for example A at 20 to 40 milliseconds of interval. I am getting messages in onCharacterticChange method. I am ...
- 25
3
votes
1
answer
4k
views
Getting Type_Gatt_Error with status 133 while connecting to AND UA651BLE
I am trying to connect to AnD UA-651BLE blood pressure monitor and get the values in an android app. The app is able to find the device but I am getting Type_Gatt_Error in 'onConnectionStateChange'.
...
- 363
1
vote
2
answers
169
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Which one best method for call a specific function at specific time , Job scheduler or alarm manager
I am communicating Bluetooth device with hardware. I want to send the data at a particular time into Bluetooth module which is the best method to schedule the call function, Which one I should use ...
- 13