Recent questions tagged bluetooth

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bluetooth - packing my app and share to other + android

I'm creating an application for Android and I need a button to send my application to another phone. I ... to send my running application. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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848 views

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bluetooth - How to use gatttool non-interactive mode

I want to write gatttool in non-interactive mode. $ sudo gatttool -i hci0 -b 78:A5:04:44:0A:57 -I [78: ... : I'm using Raspberry Pi and Rasbian. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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841 views

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bluetooth lowenergy - Android 7.0 ble scan no result

When I start ble(Bluetooth Le) scan for seconds, then stop scan. Then start, then stop... after about 5- ... super.onScanFailed(errorCode); } }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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474 views

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bluetooth - BLE peripheral pairing pin on android

I implemented a GATT Server and Client App on Android. The connection is working and I forced pairing by adding ... (settings, data, callback); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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650 views

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bluetooth lowenergy - Using BLE for indoor positioning

I have a project that i need to know that if some smartphones are in the same room to implement that i ... same room that master smartphone is? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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634 views

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bluetooth - Attribute requires authentication before read/write

I am using a Linux computer with bluez version 4.101. I am communicating with a BLE device in slave mode. I am ... maybe it is a pairing issue. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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709 views

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bluetooth - java.io.IOException: read failed, socket might closed or timeout, read ret: -1 on Android 5.0.1 Lollipop version

I am making Bluetooth socket connection to Bluetooth device and want to read bytes from the device. I have ... Can anyone have workaround ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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755 views

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bluetooth lowenergy - What is the max concurrent Ble connections android M+ can have

My app required to connect 9 Ble devices concurrently. In this article and any other resource it write that android ... or N versions? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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693 views

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bluetooth lowenergy - Android AOSP - Definition of scan interval and scan window in android source code

I have downloaded the AOSP Source code for Lollipop 5.0. In api level 21, under bluetooth low energy scan ... in the source code directory. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

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bluetooth lowenergy - Any way to implement BLE notifications in Android-L preview

This question is not about Android notificatinos, but BLE notifications (as the title may hint) I have got ... BLE notifications on Android-L See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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492 views

1 answer

bluetooth lowenergy - Any way to implement BLE notifications in Android-L preview

This question is not about Android notificatinos, but BLE notifications (as the title may hint) I have got ... BLE notifications on Android-L See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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530 views

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bluetooth - Android BLE unexpectedly and repeatedly reconnects to peripheral

I am developing an Android app that interfaces with a BLE device and recently stumbled across some strange behavior: ... Google Pixel - API 25 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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597 views

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bluetooth - Subscribe to a BLE Gatt notification Android

I′m developing an BLE app, based on the Gatt sample project provided by google: https ... } SimpleExpandableListAdapter gattServiceAdapter = new SimpleExpandableListAdapter(this, g...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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647 views

1 answer

bluetooth lowenergy - Raspberry Pi iBeacon connection timing out

I am currently attempting the Raspberry Pi iBeacon tutorial posted by RadiusNetworks at http://developer.radiusnetworks.com ... for any advice! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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684 views

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bluetooth lowenergy - Working with BLE Android 4.3 how to write characteristics?

I am working on a BLE project (Android application) using Android 4.3 API, i have used sample BLE app it is only ... true; } return false; } }; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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554 views

1 answer

bluetooth - Can iOS do central and peripheral work on same app at same time?

Can iOS (iPhone or iPad) app have Core Bluetooth (BTLE) central manger and peripheral manager objects at same ... iOS user interface devices. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

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bluetooth - Creating a Gatt Server?

I have a wider range question here, so if someone could point me to a doc or article that could explain ... in the right direction. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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498 views

1 answer

bluetooth lowenergy - Android BluetoothGatt - status 133 - register callback

First of all I read SOLVED: GATT callback fails to register and took the steps suggested in that post to ... could be helpful! Thanks everyone! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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456 views

1 answer

bluetooth - Android 6.0 Marshmallow BLE : Connection Parameters

The Bluetooth Low Energy connection parameters management seems to have changed in Android 6. I have a BLE ... information from Google ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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583 views

1 answer

bluetooth - Unable to send ATZ command to ELM 327 after establishing connection with ELM327 in android

I have written a code which is successfully able to find the paired OBD and establish the connection with ... .github.com/sankarganesh/6376039 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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723 views

1 answer

bluetooth lowenergy - iOS: didDiscoverPeripheral not called in Background mode

I am Working on BLE project, everything works fine when the app in the foreground.It can discover and connect ... when app in the background? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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841 views

1 answer

bluetooth lowenergy - Solution for BLE scan's SCAN_FAILED_APPLICATION_REGISTRATION_FAILED?

My Android app scans BLE devices, and from a certain point it start to fails with error code 2 (ScanCallback. ... how to handle it properly. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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535 views

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bluetooth - How can I instantiate a L2Cap socket in Android?

I see that a Bluetooth socket can be of type TYPE_L2CAP, but the constructor for BluetoothSocket seems to be ... actually supported by Android? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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501 views

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bluetooth lowenergy - Android listing BLE devices after device scan

Can u provide me the simple code for scanning the nearby BLE devices and list it by device name and MAC ID. I ... since i am new to BLE app. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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457 views

1 answer

bluetooth - BLE Device Bonding Remove Automatically in Android

We are doing below process to do pair with BLE Device. Connect() + discoverServices() + Pairing(Bonding) . Sometimes ... by OS in weird way. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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610 views

1 answer

bluetooth - How to send AT commands based on BT Hands-Free profile in android?

I am trying to establish Bluetooth connection between an Android device with other mobile phone over Handsfree profile. ... . Thanks in advance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

1 answer

bluetooth - GameKit in iPhone SDK 3.0

Do I need to use the Peer Picker to find peers in the new iPhone SDK 3.0? I don't really want to use it, ... Peer Picker, so I can't use that. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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550 views

1 answer

bluetooth lowenergy - Does BluetoothLeAdvertiser work on a Nexus 5 with Android 5.0?

After flashing my Nexus 5 to the Android 5.0 preview release hammerhead-lpx13d, the OS reports that it no ... -preview/issues/detail?id=1570 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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