Android scan Bluetooth devices

Create a Bluetooth Scanner With Android's Bluetooth AP

  1. We have successfully made our own Bluetooth scanner and learned the following: request the necessary Bluetooth permissions; enable Bluetooth on your phone; get a list of paired devices; scan and display a list of nearby Bluetooth devices; establish a Bluetooth connection between two devices; send and receive data over a Bluetooth connectio
  2. Call method bluetoothScanning, context is required. void bluetoothScanning(){ IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND); context.registerReceiver(mReceiver, filter); final BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); mBluetoothAdapter.startDiscovery();}// Create a.
  3. - Show battery level of connected bluetooth devices (only from Android 9) - Show signal strength, codec information (aptX, LDAC, SBC and others) - Replay any scan in history, see any bt devices in..
  4. To find BLE devices, you use the startScan () method. This method takes a ScanCallback as a parameter. You must implement this callback, because that is how scan results are returned. Because scanning is battery-intensive, you should observe the following guidelines
  5. Scan Bluetooth Devices. To start scan bluetooth device, simple call bluetoothAdapter.startDiscovery (). In order to receive the list of found bluetooth devices, we have to implement a BroadcastReceiver for BluetoothDevice.ACTION_FOUND. AndroidBluetooth.java
  6. Through Android Bluetooth API, developers can access most of bluetooth functionalities and let the applications wirelessly connect to bluetooth devices.Before connecting to a device, an application must discover or scan available bluetooth devices, request pairing and connect to the device
  7. Among many ways, Bluetooth is a way to send or receive data between two different devices. Android platform includes support for the Bluetooth framework that allows a device to wirelessly exchange data with other Bluetooth devices. Android provides Bluetooth API to perform these different operations. Scan for other Bluetooth devices

How to scan for available bluetooth devices in range in

  1. boolean isEnabled () returns true if the bluetooth adapter is enabled. boolean disable () disables the bluetooth adapter if it is enabled. String getName () returns the name of the bluetooth adapter. boolean setName (String name) changes the bluetooth name
  2. Scan for all available Android devices supporting BLE, Use any Android device with Android OS starting from 4 to 10 to Scan
  3. GitHub - dmilicic/Android-Bluetooth-Scanner: This is an open source bluetooth scanner for Android. It serves me as a boilerplate for building apps that interact with Bluetooth devices. master. Switch branches/tags. Branches
  4. When this method is called, first we are starting the discovery of detectable bluetooth devices. The discovery process usually involves an inquiry scan of about 12 seconds, followed by a page scan of each new device to retrieve its Bluetooth name. This is an asynchronous call, it will return immediately
  5. You can only scan for other nearby Bluetooth devices that are already set to be discoverable. Scanning for nearby Bluetooth devices is Asynchronous, which means the OS will do this in the background at its own speed and rate. We can only scan for X amount of time (currently 12 seconds) and then the discovery ends
  6. Use BtScanner to search bluetooth device. New a scanner BtScanner mScanner = new BtScanner ( 3000 ); // Input scan peroid (ms) // or use defult constructor BtScanner(

Once your app has permission to use Bluetooth, your app needs to access the BluetoothAdapter and determine if Bluetooth is available on the device. If Bluetooth is available, the device will scan for nearby BLE devices. Once a device is found, the capabilities of the BLE device are discovered by connecting to the GATT server on the BLE device BLUETOOTH_ADMIN: Allows the app to scan for and bond with Bluetooth devices. ACCESS_FINE_LOCATION: As of Android M (6.0) and above, location permission is required for the app to get BLE scan results. The main motivation behind having to explicitly require the users to grant this permission is to protect users' privacy. A BLE scan can often unintentionally reveal the user's location to.

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In order to connect to a BLE device you must first scan for it. You do this with the BluetoothLeScanner object you can obtain from the BluetoothAdaptor. To start the scan you call startScan and you.. The BluetoothAdapter is the entry-point for all Bluetooth interaction. Using this, you can discover other Bluetooth devices, query a list of bonded (paired) devices, instantiate a BluetoothDevice using a known MAC address, and create a BluetoothServerSocket to listen for communications from other devices

The Samsung Galaxy S8 running Android 7.0 notes that Bluetooth scanning will cause the phone to connect to nearby devices even while Bluetooth is turned off. The Pixel 2 running Android 8.1. Basically, before Android 12, the ability to scan for nearby Bluetooth or Wi-Fi devices were tied to Android's broader location permission. The reason this was the case makes sense: You can..

Bluetooth Scanner - Bluetooth finder - pairing - Apps on

Find BLE devices Android Developer

  1. Fix an Android device that freezes or won't respond; Fix a screen that isn't working right on Android; Reset your Android device to factory settings; Get manufacturer help for your device; Fix Bluetooth problems on Android; Get the most life from your Android device's battery; Get to know your Android phone . Learn how to use your Android device and get the most out of Google. Get step-by-step.
  2. Last post show the first step to enable Bluetooth, this post show how to scan BLE devices in range
  3. Hi, all my old BLE projects don't go on android 9 and up. Which is the right procedure? I've tried the new version of BLE extension, I've activate Location services, but when I click on Scan no devices are shown. When I call the BluetoothLE.StartScanning the BluetoothLE.Scanning remains always false. Thank you
  4. Scan the Plug-and-Play bar code PAPBTH (File 1 field) from the User's Guide to configure the scanner for the correct interface. For those two barcodes, click on the File 2 field. Ensure the Bluetooth radio is switched on the host (smartphone, tablet, PC) device. Discover the scanner with the 'scan devices' option on the Android and select pair.
  5. Building Android Apps to Control Bluetooth LE Devices. Subscribe to our Newsletter. Oct 7, 2019 Technology. Bluetooth; Android; Kotlin; IoT; Internet of Things ; BLE; Bluetooth is the wireless protocol designed to be used with devices that are, roughly speaking, in the same room. So it operates at shorter range than Wifi, but longer range than NFC. But unlike a Wifi device, Bluetooth devices.

Android-er: Scan Bluetooth Device

  1. An Android device can target and scan for specific Bluetooth devices more efficiently when using BLE. BLE APIs let app developers create filters for finding devices with less involvement from the host controller. Caution: BLE scanning needs location permissions as BLE scanning identifies objects that could be used for geolocation. Turning off Location services will turn off Bluetooth scanning..
  2. SDK version to 18 in your app. Next add these permissions and feature tags in the manifest tag of your app manifest
  3. Through Android Bluetooth API, developers can access most of bluetooth functionalities and let the applications wirelessly connect to bluetooth devices. Before connecting to a device, an application must discover or scan available bluetooth devices, request pairing and connect to the device. (apk + source code at the bottom of this post
  4. The description of Bluetooth Scanner App. Easily scans and pairs Bluetooth devices with your Android TV. Design intended for Android TV. NOTE: For Sony Android TV users, make sure that your TV model supports A2DP Bluetooth profile. Please don't blame the app if your Bluetooth device does not pair with your Android TV. Show More

How to Programmatically Scan or Discover Android Bluetooth

In this video, i have explained that How to find any undetectable bluetooh devices in android mobile or device How to periodically scan for bluetooth devices on android . Hi this may sound as a stupid question.But I was unable to find any answers for this, thus posting here. I am building an indoor application which continuously scans the bluetooth dongles located at different locations in a place like a mall or library.As I move in the mall with android phone in my hand I should be able to get the. In android, Bluetooth is a communication network protocol, which allows devices to connect wirelessly to exchange the data with other Bluetooth devices. Generally, in android applications by using Bluetooth API's we can implement Bluetooth functionalities, such as searching for the available Bluetooth devices, connecting with the devices and managing the data transfer between devices within. Discovery of Nearby Bluetooth Devices in Android. 7 December, 2016 6 March, 2015 by Javier Rodríguez. Facebook. Twitter. Linkedin. For some time now, it is common to see how Bluetooth technology is present in many of the gadgets we use daily. With it, we can share files with our friends, integrate our phone into the audio system of our car or even connect gamepads to the video game console. Much like powering your cell phone off and then back on, another form of soft reset for an Android device is to remove the battery while the device is powered on. Wait about 30 seconds, plug the battery back in, power the phone on and see if the Bluetooth will connect

Android - Bluetoot

Android Bluetooth List Paired Devices Example. The getBoundedDevices() method of BluetoothAdapter class provides a set containing list of all paired or bounded bluetooth devices. In this example, we are checking if the bluetooth is turned off, if yes then turn it on and list all the paired devices. activity_main.xm The program can locate and then browse various Bluetooth devices you might have in your vicinity. The program was designed only for use with Microsoft's Bluetooth Stack so if you don't have that installed, this software might be a little bit useless. The speed of Bluetooth Scanner could use some improvement, but overall it relies on MS Bluetooth Stack so the developers of this utility aren't.

Android Bluetooth Tutorial - javatpoin

I have an app that processes multiple items through Bluetooth. As I need to pair and unpair with dozens of items every day, it's a frustratingly lengthy process having to scan and pair in the Android OS, then start up my app, do the operations on the item, close the app completely, call up the Android pair & scan utility again, unpair the item, scan for any new items, pair again then start. Mit Zebras Dienstprogramm Scan-to-Connect (STC) können Sie in einem einzigen Schritt umgehend Datenerfassungsgeräte von Zebra mit einem Bluetooth ®-fähigen PC, Tablet oder Smartphone verbinden. STC reduziert den Prozess von bis zu 15 Schritten und Bildschirmwechsel auf einen einzigen. Dadurch, dass es sogar automatisch Ihre Android-basierte Anwendung startet, können Sie schneller mit. Android Bluetooth Low Energy Example. Since BLE was introduced in API 18 and cannot be used on old devices, due to change of Bluetooth specifications. I suggest you to specify the min SDK version to 18 in your app. Next add these permissions and feature tags in the manifest tag of your app manifest The Android platform includes Android Bluetooth APIs for Bluetooth connectivity, which allows an Android device to exchange data with other bluetooth enabled devices wirelessly. Through the Android Bluetooth APIs, an app can perform the following Bluetooth functionalities: Scan for other Bluetooth devices. Query for paired Bluetooth devices But sometimes it just cannot detect your Android device or auto Bluetooth of feature doesn't work on some mobiles. 2. Btoolkit Bluetooth Manager Btoolkit bluetooth manager automatically scans the Android devices and attaches one Android device with one of your contacts so you can easily access them. You can sort, filter the list of Android.

By using the Bluetooth Low Energy (BLE) APIs, you can connect a mobile web app on an Android device to a remote Arduino device and provide a user interface to an embedded device. In this tutorial, learn to build a mobile application that opens and closes your garage door Background BLE scans for Android devices could be divided into two different groups depending on the mechanisms used for scheduling background tasks. During the last few years, Android has changed background processing and added Doze mode, limited implicit broadcasts, and limited background behavior and. Most of the new solutions will not work for old Android versions and all the old solutions.

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Scanning for Low Energy Bluetooth Android Devices - Andel

Bluetooth 5 advertising extension. Android 8.0 supports Bluetooth 5, which provides broadcasting improvements and flexible data advertisement for BLE. Bluetooth 5 supports BLE Physical Layers (PHYs) that retain the reduced power consumption of Bluetooth 4.2 and let users choose increased bandwidth or range android.permission.ACCESS_COARSE_LOCATION - required for BLE scanning on Android 5.0 (API 21) or higher. Note: This is dangerous permission from API 23. So, to use all the features, our manifest file should look like this: Features: We need also to make sure that the smartphone or tablet has a built-in Bluetooth adapter. If we just want to make our mobile app unavailable for devices without. I will be using an Android phone for testing purposes and not an Android virtual device. The Android app that you develop can be used with any other microcontroller, I only used the Arduino in this example with the HC-06 bluetooth module since they are both cheap and popular. I'm going to be creating other posts with different microcontrollers.

GitHub - dmilicic/Android-Bluetooth-Scanner: This is an

Bluetooth Audio Widget Battery Free Android. This is another app by magdelphi and with this app, you can listen on all devices Bluetooth. This app will also show you Bluetooth device battery level. This app allows you to listen music in good quality and allows you to manage Bluetooth audio device in one touch เชื่อมต่อ Bluetooth Device ด้วย Android Bluetooth Low Energy (BLE) Taweewong Tocharoen. Follow. Feb 14, 2020 · 4 min read. ในชีวิตประจำวันเรามีการส่งข้อมูลผ่าน Bluetooth กับอุปกรณ์รอบตัวเรากันอยู่แล้ว ไม่ว่าจะเป็น. Best Java code snippets using android.bluetooth.le.ScanResult (Showing top 20 results out of 315) Add the Codota plugin to your IDE and get smart completions; private void myMethod {G s o n g = new Gson() GsonBuilder gsonBuilder; gsonBuilder.create() new GsonBuilder().create() Smart code suggestions by Tabnine} origin: AltBeacon/android-beacon-library @MainThread @Override public void. Buy OBD2 Scanner Bluetooth 4.0 OBDII Scan Tool for Android Device & iOS (No Need to Pair on iPhone/iPad), Foseal Car Diagnostic OBD 2 Check Engine Light Code Reader Work w/ 3rd Party app OBD Fusion Torque: Code Readers & Scan Tools - Amazon.com FREE DELIVERY possible on eligible purchase Cycle Bluetooth - Turn your mobile device's Bluetooth radio off and on again in the Settings app. Relaunch App - Quit the Bluetooth LE Connect app and restart it. (instructions for iOS & Android) Cycle Power - Restart your mobile device by powering it off and restarting. Doing one or both of the above solves most peripheral scanning issues

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If I use the standard Android search for device mechanism for Bluetooth devices, I can find my nRF51822 and get connected. On the other side, if I use the standard search for device mechanism of iOS (iPhone), I am not able to see my nRF51822. Additionally I`m not able to get connected to the nRF51822. If I use a special Bluetooth scanner application on the iPhone, I can see the nRF51822. OBDLink scanner only works with Android and Windows devices and has an extensive range of compatible vehicles. This is one of the best bluetooth obdii scan tool works on all 1996 and plus models including light trucks sold in the USA. However, it does not work on hybrid and electric vehicles. Android phones: 2.2 and plus versions Bluetooth OBDII Scan Tool for Android Devices: Amazon.de: Auto Select Your Cookie Preferences We use cookies and similar tools to enhance your shopping experience, to provide our services, understand how customers use our services so we can make improvements, and display ads

Android Things supports both Bluetooth and Bluetooth Low Energy APIs. In this blog post, we will use the Bluetooth LE API to communicate between a server (an Android Things board) and a client (an Android app on a phone / watch).We will build a counter device for our awesomeness: every time you feel awesome (for any reason whatsoever), press a button on your mobile device Android. On Android, a Bluetooth device communicates with us via a BluetoothGattCallback which is hard to use because of the asynchronous timing needed to get it working correctly. These methods need to block the execution until onCharacteristicWrite is called back for the characteristic yack! But things have evolved and now much better/easier. First we have Kotlin with Coroutines & Flow.

Android Bluetooth Part 2: Scan For Near Devices, List them

startScan Scan for Bluetooth LE devices. Since scanning is expensive, stop as soon as possible. The Cordova app should use a timer to limit the scan interval. Android API >= 23 requires ACCESS_COARSE_LOCATION permissions to find unpaired devices. Permissions can be requested by using the hasPermission and requestPermission functions. Android. See, back in Android 6 Marshmallow, Google changed things so that apps needed location permissions to scan for Bluetooth devices.At the time, the rationale was that Bluetooth was going to be used. MUNBYN Android Barcode Scanner, 2D Zebra Scanner, Rugged IP67 Android Barcode Scanner Pistol Grip, Android 9.0 Scanner, 4G WiFi Android Scanner Handheld for Warehouse, Inventory. 5.0 out of 5 stars. 1. $579.00. $579. . 00. $29.00 coupon applied at checkout. Save $29.00 with coupon

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Bluetooth, TCP, HTTP and Barcode Scanner Data Acquisition for Android. GetBlue is a versatile Android application for bi-directional data acquisition. GetBlue collects data from Bluetooth SPP, TCP/IP, HTTP and camera scanners automatically in the background. The captured data is forwarded to adjustable target devices, files, online spreadsheets. This video is another helpful tip from AndroidGuideHQ. It will show you how to pair up your bluetooth device with just about any Android device. In the vid.. A bluetooth scanner is born to read barcodes (a camera is born to take photo) so performance are very high, has it's integrated battery and there are a lot of models: pistol grip; ring scanner; pocket scanner; I have created a little repo on GitHub. It'a a good starting point to connect a scanner to an Android device via bluetooth. It. Android. Add these permissions in your AndroidManifest file. Let's code. In this sample project, I have two ViewModels: MainPageViewModel which scans the Bluetooth devices; PrintPageViewModel which allows you to print text. MainPage / MainPageViewModel. To access all the Bluetooth management using we will be using the Central Manager. ICentralManager _centralManager = Shiny.ShinyHost.Resolve. Android and iOS devices also have very different battery impact depending on type of scans and the number of Bluetooth Low Energy devices in the vicinity. With newer chipsets and advances in software, by 2014 both Android and iOS phones had negligible power consumption in real-life Bluetooth Low Energy use

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Scanning For Bluetooth Devices in Android - STG Consultin

GitHub - RustFisher/BluetoothScanner: Android Bluetooth

Scan bluetooth devices android tutorial. Rs507 with your device where the app is running ex. Intent turnon new intent bluetoothadapter action request enable. In this post i m going to outline how you can prompt the user to enable turn on bluetooth in your android device how to show already paired bluetooth devices and how to scan for new bluetooth devices in range. For this tutorial you ll. Highlighted features: - Find all bluetooth devices, including connected, paired and unknown devices. - Keep track of your devices - bluetooth 4.0 scanner - Connect to bt devices - Find Low energy and classic devices, including smart watch or band, TV, computer and others. - Pair and unpair bt device - Show battery level of connected bluetooth devices (only from Android 9) - Show signal. Wireless Barcode Scanner for Android Use your mobile device as a barcode scanner and transmit the scanned codes directly to target systems. Camera Image Support Take or browse pictures and send them immediately. Quantities and Numeric Input Use the app for inventory controls and add quantities to scanned barcodes. Text Fields Add descriptions or notes to captured data. Predefined Input. Scan, Pair, Connect to Bluetooth device from Ubuntu from command line using bluetoothctl; How Android Bluetooth Profiles are enabled and Services are activated ? Top Pages. Embedded, Linux, Android, Opensource, Web Tech. Embedded Linux. ADB Commands. Android. Application Programming Interface ( API ) Recent Posts . How to Install Skype on Ubuntu 20.04 and 18.04 ? How to install Google Chrome.

How to pairing bluetooth device . SLAM, Computer vision, Ubuntu, Software. Jump to: ☰ Menu [Android] Android bluetooth pairing in code (안드로이드 블루투스 페어링) 09/27/18 on Android. How to pairing bluetooth device. 이 글에서는 안드로이드 어플에서 직접 주변에 있는 기기들을 검색하고 pairing을 수행하는 방법에 대해서 설명한다. 이전. Bluetooth can also be used for sharing files, pairing the mobile device to a Bluetooth-enabled automobile, and much more. This tutorial shows how to manage Bluetooth on an Android device. With. By default, the app will automatically connect to your devices when you activate Bluetooth on your Android device, but you can choose to connect when you unlock the screen, or even when you charge your phone. Bluetooth Auto Connect is a very useful app that makes it easier to connect and manage your Bluetooth devices. It's the perfect app for anyone who uses multiple Bluetooth headphones.

Bluetooth Low Energy Android Developer

Bluetooth Low Energy on Android, Part 1. There are many resources available on Bluetooth on Android, but unfortunately many are incomplete snippets, use out-of-date concepts, or only explain half of the puzzle! In this series, we will learn how to set up both a Bluetooth Low Energy (BLE) Client and Server and demystify the Generic Attribute. iOS and Android's Bluetooth APIs allow apps to communicate with BLE devices. The API simplifies the way apps implement BLE and allows multiple apps to use BLE at the same time, but it also introduces many undocumented behaviors. Unfortunately, the only way to understand these behaviors is through experimentation. The behavior we'll be focusing on today is how iOS and Android handle. Get the current Bluetooth scan mode of the local Bluetooth adapter. State: Get the current state of the local Bluetooth adapter. ThresholdClass: This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) ThresholdTyp

The Ultimate Guide to Android Bluetooth Low Energy Punch

ScanResult for Bluetooth LE scan. Skip to main content. Contents Exit focus mode. Language. Save; Edit; Share. Twitter Returns the remote bluetooth device identified by the bluetooth device address. Handle : The handle to the underlying Android instance. (Inherited from Object) IsConnectable: IsLegacy: JniIdentityHashCode (Inherited from Object) JniPeerMembers: PeerReference (Inherited. - Make sure Bluetooth is enabled on the Pocketjet -Try turning the Pocketjet off, then back on -Try Unpairing the device under Android's Settings app > Bluetooth. After Unpairing, Pair it and try it again. -Try rebooting your Android device. 5. Tap Print. Tap the desired Print selection. 6. Upon selecting your choice, a Preview will appear Before Android 12, the ability to scan for nearby Bluetooth or Wi-Fi devices were tied to Android's broader location permission. The reason this was the case makes sense. You can. Go to device manager and right-click on your computer name and click Scan for hardware changes Install the bluetooth devicedrivers from the manufacturer's website, if any. What worked for me was just to turn on/enable/set ti automatic Bluetooth support. I realise you said you'd already set it to auto but did you scan for hardware changes after? Last edited by Bastet; 04 Jan 2017 at 10:34. My.

Making Android BLE work — part 1

Location Accuracy for your Android device (a.k.a. Google Location Services) To get a more accurate location for your phone, Turn Wi-Fi scanning and Bluetooth scanning on or off. Send your location in an emergency. To help first responders find you quickly, dial an emergency number. For example, dial 911 in the US or 112 in Europe. If Android Emergency Location Service (ELS) works in your. Scan the Bluetooth Devices nearby 2. Pair or Connect the Bluetooth Device 3. Find the Location Where You Lost the Bluetooth Device 4. Unpair the Device 5. Settings to On/Off Application Mode 6. Rating 7. Contact Us 8. Share Note: Bluetooth and location should be ON once you connect the device. Also once you connect the device app will auto turn on the Bluetooth if its not on. Remove or un-pair.

Bluetooth Android Developer

Compatible with Android, Windows and other Bluetooth based mobile devices, including popular models such as the Samsung Galaxy S4/5/6/7, Google Nexus, Motorola Moto G, HTC One and many more. HID Bluetooth communication allows you to start scanning instantly, saving you the time and the cost of software development From your Android Smartphone or tablet, go to your SETTINGS, then WIRELESS & NETWORKS, then BLUETOOTH SETTINGS. Turn on Bluetooth, scan for the nearby devices and pair your phone with the scanner. The name of the scanner will vary depending on the model: Examples would be OBDII, OBD-II, VLink, ELM327, OBD2, The default password is 1234. 4 QML Bluetooth Scanner Example. A QML example about locating Bluetooth devices. This is an example on how to locate Bluetooth devices in QML. The user has the choice to run three different types of Bluetooth scans. The device retrieves information about the remote device within Bluetooth range. This implies that the remote device can be discovered The App would scan and connect to our devices. Once selected, the App would send AT commands to the device according to our specifications. Skills: Android, Mobile App Development See more: android app scan vin numbers, android app route bluetooth audio, android app rim bluetooth, cost develop android app, need develop android app, develop android app karaoke, android app scan vin numbe Bluetooth Low Energy (BLE) is a part of the Bluetooth 4.0 specification which additionally also includes Classic Bluetooth and Bluetooth High Speed Protocols. Compared to classic Bluetooth, BLE is intended to use lesser power while maintaining similar communication range. BLE is an always off technology and only transmits short amounts of data when required. This significantly reduces power.

the scanner to the Android device. DS6878 Android Tablet DS6878 2D IMAGER PAIRING THE DS6878 TO ANDROID. EBRA TECHNOLOGIES 7 INSTRUCTION GUIDE PAIRIN THE DS6878 TO A TABLET Under Settings, select Wireless Networks. Turn Bluetooth on. 2 Select Search for Devices. From Available Devices, select the DS6878. The serial number of the scanner assists in identifying the correct device. 3 DS6878 2D. When the Android device finds a new Bluetooth device and calls the OnReceive method, the class checks that the event is definitely the right one (i.e. BluetoothDevice.ActionFound). Then it checks that the devices are not already paired (i.e. 'Bonded') and again my class just writes some details to the console about the Bluetooth device that its found 3. Navigate to your host device's Bluetooth settings. 4. Tap on your scanner's Bluetooth name to pair with it. 5. After pairing through your host device's Bluetooth settings, launch (or open) the application you wish to use with your scanner. Examples of Bluetooth-SPP supporting applications include SerialMagic Gears for Android and SerialMagic. So if an app gets access to use Bluetooth in your phone, it is likely that it can also retrieve your location. So it makes sense that an app asks for location access when it try to scans for Bluetooth devices. So the dependency on location for Bluetooth is added in Android 6 (Marshmallow) onwards. Moreover in recent Android version (10 onwards.

Google can still use Bluetooth to track your Android phone

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