Questions tagged as 'bluetooth'

Tagged questions
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How to get information coming via bluetooth?

Good morning, I'm trying to use the Android Bluetooth classes to, every 2 seconds, change the text of a TextView with the information coming via bluetooth. But I do not quite understand how they work, and I have not found many clear examples. Co...
asked by 07.09.2018 / 19:08
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Make multiple connections via Bluetooth

I need my Android application to connect to multiple devices and exchange information with them. To accomplish this I am trying to create a Thread to which it receives the connection of a device, save its mac number, disconnect and open the c...
asked by 22.08.2018 / 10:12
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Increase the speed of the bluetooth HC-05 module

Hello, I have a project with Arduino and with the HC-05 Bluetooth module that receives the MACS of Bluetooth devices around (do not connect, just search). It works, but I would like it to perform better by capturing, for example, devices that pa...
asked by 15.08.2018 / 00:44
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Bluetooth Windows Socket - Can not connect to device: (10049)

I am having socket error problems with code 10049 when I try to connect a bluetooth SSP device, serial port service, in Delphi Tokyo 10.2 in the Windows environment using a TBluetoothSocket class. The error occurs at connection time (TBluetoothS...
asked by 17.07.2018 / 19:09
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SerialRxTx does not receive data - Java

I am testing a class of data receipts via COM ports in Windows. I get this data from an embedded dsPIC-based system. When sending data from the microcontroller to the computer via USB (COM3), the data is received normally, but when using blue...
asked by 07.07.2018 / 04:35
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Android studio ERROR java.lang.NullPointerException

I'm developing a code in android studio and using bluetooth communication. I want to make sure that if a specific data received by the bluetooth is greater than this value, automatically generate a notification in the cell. The error:    j...
asked by 22.09.2017 / 00:31
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Update information received from arduino

I have made an application that interacts with a robotic head with Arduino and would like to know how to automatically receive all the data of the robot without having to trigger the sending of some command A log-like job, always keeping the...
asked by 06.06.2017 / 01:07
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I can not read the value that comes from the Arduino to Cordova

Good morning, I have an application in Cordova. I want to connect it to arduino via bluetooth. I can not receive the value that comes from the Arduino var macAddress = "00:06:66:4D:00:00"; var app = { initialize: function () {...
asked by 25.04.2017 / 13:31
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Error in Handler.obtainMessage

I'm developing an app that uses the Bluetooth connection, but I'm finding a problem that I can not solve. I'm following the direction of this link for such link ... tooth.html. Here is the code below: Handler.obtainMessage(MESSAGE_READ, byte...
asked by 19.08.2016 / 03:22
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Java Android BluetoothAdapter Override?

I'm developing an app that uses the BluetoothAdapter class ... it does not work the way I need it. But I tried to give an Override in the class, but she did not allow it. When we pass the BluetoothAdapter parameter, we are actually passing a...
asked by 30.03.2016 / 15:33