Most voted "bluetooth" questions
Bluetooth is an industrial specification for areas of wireless personal networks (Wireless personal area Networks - Pans) considered PAN or even WPAN type. Bluetooth provides a way to connect and exchange information between devices such as mobile phones, laptops, computers, printers and video games via a globally licensed and secure short-range radio frequency. If the question is not about "Bluetooth", do not use this tag.
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answers1450
viewsRemote control of an Android is technically possible?
Today I saw the following video: https://www.youtube.com/watch?v=9J7GpVQCfms Shows a bracelet that projects the screen of an Android phone paired on the user’s arm. This then can manipulate the cell…
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answer998
viewsDoes PHP support Bluetooth?
If not, in general (web) is there support for bluetooth? Is there any way to communicate between PORT WITH (Bluetooth) for the web?
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answer1115
viewsHow to print on Android via a bluetooth printer?
I’ve been searching and found nothing about printing on Android through a Bluetooth printer. Is it possible to do this? Is there a library or SDK?
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answers402
viewsSending information between PC (Windows Form, C#) and Android
I started to elaborate a project scheme, and as an idea I had to have several Androids devices sending data to a computer (I plan to do using Windows Form - C#, and maybe Xamarin for Mobile part). I…
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answer985
viewsSend string via bluetooth on Android
I’m developing an Android app that sends a string with the value ola by bluetooth. How do I send ola by bluetooth to a specific address such as 00:00:00:00:00:00? A function that sends a string via…
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answers666
viewsBluetooth and Android printer
Is there an api to send print orders through an android app? I’ve seen that Samsung included this bluetooth printing feature some time ago, but I can’t find anything about sending print orders…
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answer200
viewsIs there a specific library to work with android and Arduino?
I’m with some automation projects, and I wanted to develop my own app, which controls an Arduino. With little research, I realized that there are several tools that create this communication and…
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answers134
viewsRead Arduino Serial with bluetooth 4.0 using Evothings
I am developing an application, where I want my iPhone touch information with Arduino from bluetooth 4.0. I was able to connect to Bluetooth and also send data through Serial, but I’m not able to…
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answers412
viewsRFID BLUETOOTH PHP
I’m trying to connect an RFID reader to Windows via Bluetooth. I can identify which 'COM' it is, but when I try to call via PHP using 'fopen' for example, from the error "failed to open stream:…
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answers29
viewsSet a matching password?
Good afternoon, I’m making an android application to connect and communicate with an Internet via Bluetooth, my problem is regarding pairing, where I can’t set the password automatically to pair…
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answer392
viewsHow to detect if wi-fi and/or bluetooth are connected
Good afternoon! I wonder if anyone knows any open source for an application to check if the wi-fi or Bluetooth are connected.
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answer128
viewsIs it possible to send values of the gyroscope and a seekbar simultaneously via bluetooth?
Hello, everybody! I’m trying to control a Drone (Hubsan X4) via smartphone sensors. But I can’t send the collected values of the gyroscope and a seekbar simultaneously. The seekbar represents speed…
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answers47
viewsSend json from iphone to a Bluetooth device
I need to create an app that sends a json information (login and password) to a bluetooth device, which will query in a database and see if the login and password are correct. I have this app for…
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answer176
viewsCommunicating Android app with Bluetooth
I’m trying to perform an implementation to display paired Bluetooth devices and those connected around a mobile phone. I did several research, I found a example and now I’m trying to build an…
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answers60
viewsRecognize when my Android gives replay to a bluetooth ping
I need to know what it takes for my Android program to detect when mine bluetooth is responding to a ping command on bluetooth. They’re kind of shooting ping with l2ping against my mobile, on my…
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answers617
viewsPrint Bluetooth Ionic Printer
Someone actually managed to print to bluetooth printer using Ionic, Ordova, phonegap some method that was not native? My project was written in Ionic, soon arose this need :(
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answers922
viewsPrint via bluetooth using PHP on ANDROID
Hello! I am participating in a project made in PHP, which will run on ANDROID (via Phonegap). The app will print to a portable printer via bluetooth communication. The printer is already paired with…
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answer370
viewsCommunication HC-06 with android
Hello, I am layman on the subject and I would like to know how to make, if possible, a data transfer via bluetooth from Android to the module HC-06 of the Internet using the phone pairing itself.…
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answer218
viewsCalling Java (Android) function inside a hybrid mobile application with Javascript
We are building a hybrid web application, which needs to print on a portable printer by bluetooth. But the printer is imported and only comes with a Java SDK, which is not our strong! We needed to…
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answers222
viewsBluetooth service to communicate Java Desktop and Android application
I’m doing tcc, the project is to create a java desktop application and make it communicate with an android application. As this communication will be in a room for example, always in the same…
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answers36
viewsRead values from a bluetooth, in a React application
I have an app in React and I have a Bluetooth connected to an Adian. When I send a value to bluetooth, I’d like to read it in my React app, but I can’t find how to do it.
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answers121
viewsHow to properly connect bluetooth server in C to Android?
I am trying to connect an application between the computer and an android app. The app will be the client and the computer will be the server. Using Bluez( C library for bluetooth on linux) for…
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answers759
viewsReceive data from an Arduino sensor for the Android app ( Android Studio)
Good night! I need a help with the application I’m developing, I made the bluetooth connection of my Arduino with the android app and it’s all right, I can turn on and off small but I do not know…
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answers65
viewsCode on Arduino: App via Bluetooth
The image below shows the application I created to try to communicate with Arduin. Each option sends via serial a letter as shown on the screen. The point is that I need to ensure that the user…
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answers175
viewsBluetooth connection - Raspberry Pi 3 B + with ios devices
What is the procedure to enable Bluetooth from Raspberry Pi 3 B+ to send and receive data via bluetooth with Ios? I developed an application, where through bluetooth (Bluez, Pybluez and…
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answer84
viewsReceive String via Bluetooth and print in a text box
I have a Java code that I adapted to receive a string via bluetooth and when running it in Android Studio does not present errors. However, in the app by clicking the "Start" button to go to…
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answers371
viewsUse bluetooth connection in two activities
I’m creating a small app with two activities, the first is a screen with only a 'connect' button, after connected to the bluetooth module it would change to the second screen (Second Activity) where…
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answer500
viewsReturn Bluetooth devices on Android
Hello, After a lot of research and study I managed to finish a class that returns me the paired and connected bluetooth devices near an Android. The problem I’m encountering is time to update my…
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answers921
viewsHow to create a multiplayer game with bluetooth?
I’m doing a multiplayer game on Unity3d and I’m using Unity’s new networking API, I’ve seen that there are some plugins for Unity that make it possible to create a multiplayer via bluetooth, but are…
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answers48
viewsCorebluetooth - Send and receive a large data pack
I am developing an iOS app using only Corebluetooth, in the same application the device can be a Central or a Peripheral. Well, everything works fine, until I try to send a data packet above the…
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answers842
viewsSend whole type data via Bluetooth connection between android and Uino
I made a method to allow sending strings from android to Arduino through bluetooth and I succeeded! However the question arose of how it would be to send data of type 'int', following this same…
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answers360
viewsbarcode in android printer Bluetooh
I can print anything but the barcode I currently use: byte[] cmd = new byte[3]; cmd[0] = 0x1b; cmd[1] = 0x21; cmd[2] &= 0xEF; out.write(cmd); out.write("Mensagem de teste \n".getBytes()); The…
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answer98
viewsBluetooth communication between an iPad and a PIN-PAD using Objective-C
I need help on how to use Core Bluetooth to communicate with a PIN-PAD. I’d like to know if that’s possible, and if it is, how can I do it? Thank you!
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answers49
viewsJava Android Bluetoothadapter Override?
I’m developing an app that uses the Bluetoothadapter class... it doesn’t work the way I need it. But I went to try to override the class, but she won’t allow it. When we pass the Bluetoothadapter…
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answers39
viewsError in Handler.obtainMessage
I’m developing an app that uses Bluetooth connection, but I’m encountering a problem that I can’t solve. I am following the orientation of this link to such https://developer.android.com/guide/top…
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answer498
viewsHow to send a character(char) via bluetooth
I’d like to send the number 1 via bluetooth on android, already made the part of connection to send - this is the source code public void conectar(ProgressBar loading, BluetoothSocket socket) {…
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answers21
viewsReceive data in edittext from bluetooth reader and save automatically
Hello, I have the following problem, I have a mobile application where I was reading the barcodes by zxing library, but now I bought a data reader via bluetooth, the problem is that I need to…
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answer96
viewsI can’t read the value that comes from Iraq to Cordova
Good morning, I have an application in Cordova. I want to connect it to the Arduino through bluetooth. I can’t get the value that comes from Iraq var macAddress = "00:06:66:4D:00:00"; var app = {…
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answer256
viewsBluetooth in emulator
I’m wondering if it is possible to connect a bluetooth in some emulator, because, I’m doing a project that needs to test bluetooth and I do not have an Android smartphone and I wonder if it has how…
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answers20
viewsReceive information from Google Routes with React Native
I have an application in React Activate with React-Native-google-maps-Directions and I need it to receive information from google routes in real time. For example, "turn right", "turn left". It is…
react react-native google-maps google-maps-android-api-2 bluetoothasked 3 years, 4 months ago Carlos Henrique 1 -
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answers10
viewsBLE plugin limit Bluetooth connection by distance
need to perform a bluetooth connection of an app in Xamarin with another device. I found a plugin called Plugin.BLE. The point is this, the connection between the 2 devices should occur only if both…
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answers46
viewsUpdate information received from Arduin
I have made an application that interacts with a robotic head with Arduino and I would like to know how to automatically receive all the data from the robot without having to trigger the sending of…
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answers393
viewsAndroid studio ERROR java.lang.Nullpointerexception
I’m developing a code in android studio and using bluetooth communication. I want to make that if a specific data received by bluetooth is greater than such value, automatically generates a…
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answer36
viewsHow do I get the result of the window that asks to activate Bluetooth?
Inside an android application, I have a screen that requires bluetooth to be enabled, if it is disabled, the part of the code below asks the user to enable it: final BluetoothManager…
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answers96
viewsIncrease Module Speed bluetooth HC-05
Hello, I have a project with Arduino and the Bluetooth module HC-05 that gets the MACS of Bluetooth devices around (not connect, just search). It works, but I would like it to perform better by…
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answers214
viewsSocket Bluetooth Windows - Can’t 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 Windows environment using a Tbluetoothsocket class. Error…
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answers34
viewsDoubt Bluetooth React Native
Good afternoon, you guys! I am developing a pricing app but I have a question about how to search for Bluetooth devices within the application. I found a very interesting library and seemingly…
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answers84
views[Unhandled Promise rejection: Typeerror: null is not an Object (evaluating 'bleManager.scan')]
I have the following error in bluetooth connection with React Native, I am using the library react-native-ble-manager and the expo for the construction of this app. The error occurs when I try to…
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answers40
viewsReact Native - React-Native-bluetooth-escpos-Printer
I am implementing the printing of a ticket via the React-Native-bluetooth-escpos-Printer lib. I can connect and print. The problem is that in printing, is added the characters &M before any text…
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answer60
viewsHow can I get Bluetoothmanager of the device on Kotlin?
I am learning about Bluetooth in Kotlin and was reading this Google document about Bluetoothadapter https://developer.android.com/reference/android/bluetooth/BluetoothAdapter. I started implementing…