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Recent questions tagged bluetooth

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bluetooth - Android BLE API: GATT Notification not received

Device used for testing: Nexus 4, Android 4.3 Connection is working fine but the onCharacteristicChangedMethod of ... with a possible solution? See Question&Answers more detail:os...

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

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1.3k views

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bluetooth lowenergy - Android BLE BluetoothGatt.writeDescriptor() return sometimes false

I'm trying to write BLE Android app. I found that sometimes when I call BluetoothGatt.writeDescriptor() it ... sentence to other functions. See Question&Answers more detail:os...

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

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803 views

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bluetooth - Google Glass GDK: How to Communicate with Android Device

I'm looking for a way to send data between my Android Device and Google Glass that doesn't rely on Cloud ... transfer data in both directions. See Question&Answers more detail:os...

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

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974 views

1 answer

bluetooth - file transfer with BLE

I use a X-NUCLEO-BNRG2A1 with a NUCLEO-L476RG . I want to transfer a file (a driver) with the BLE ... from:https://stackoverflow.com/questions/65841588/file-transfer-with-ble...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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bluetooth lowenergy - Is it possible to detect/scan for Samsung Galaxy Watch using BLE in react native?

I'm working with this library in achieving two features in my react native app for iOS and Andriod Feature I was ... -detect-scan-for-samsung-galaxy-watch-using-ble-in-react-native...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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952 views

1 answer

bluetooth - Trying to pair my raspberry to my phone via pybluez

Hello I'm going to explain my problem really quickly. First I'm using Pybluez library on my Raspberry Pi 3. I ... /65864382/trying-to-pair-my-raspberry-to-my-phone-via-pybluez...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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bluetooth - playback sound on amazon echo from debian linux

I use Blueman-Manager for managing Bluetooth devices on my Linux machine. When I try to connect the Linux ... /questions/65867996/playback-sound-on-amazon-echo-from-debian-linux...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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968 views

1 answer

bluetooth - SwiftUI: Function for writing characteristic to BLE Peripheral using data from different views

I am building an app in SwiftUI that communicates over BLE with a custom device that has an LED ring light ... -for-writing-characteristic-to-ble-peripheral-using-data-from-d...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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bluetooth lowenergy - Android Ble MTU size

I use BluetoothGatt.requestMtu(512) in my android application. First time it works well But Right after Mtu is ... https://stackoverflow.com/questions/65883084/android-ble-mtu-size...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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982 views

1 answer

bluetooth - Can't Send Command to BLE Device Philips Hue Bulb (Connection Drops)

I am trying to turn my bluetooth Hue bulb on/off and change brightness using my Raspberry Pi 4B. The bulb is ... /cant-send-command-to-ble-device-philips-hue-bulb-connection-drops...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

bluetooth - Sending data to BLE device with javascript won't work

I have a bluetooth device and want to turn it on with the p5ble library. https://itpnyu.github.io/p5ble- ... questions/65937328/sending-data-to-ble-device-with-javascript-wont-work...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

1 answer

bluetooth lowenergy - Android: Why is BluetoothLeScanner sometimes not discovering any BLE device?

I'm using BluetoothLeScanner to scan for BLE devices, which I start using: startScan(null, settings. ... -why-is-bluetoothlescanner-sometimes-not-discovering-any-ble-device...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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795 views

1 answer

bluetooth - Audio streaming with disruptions

I am in the process of developing an audio solution for a situation where audio packets cannot be sent ... ://stackoverflow.com/questions/65545441/audio-streaming-with-disruptions...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

bluetooth - Android Share APK via share option for >= android version 7.0

I'm trying to make a share button which share my application through other media like Bluetooth, ShareIt, Xender.... ... /android-share-apk-via-share-option-for-android-version-7-0...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

790 views

1 answer

bluetooth lowenergy - Chipsets/Devices supporting Android 5 BLE peripheral mode

**Overview of devices known so far: Nexus 6, Nexus 9, Moto E 4G LTE, LG G4, Galaxy S6, Samsung ... .com/questions/26482611/chipsets-devices-supporting-android-5-ble-peripheral-mode...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

bluetooth - How to add Serial Port Profile v1.2 in Bluez v5.5?

My OS is Yocto (2.4 rock). I checked to Bluez website, it supports spp(Serial Port Profile) v1.1. I need to update ... /66058515/how-to-add-serial-port-profile-v1-2-in-bluez-v5-5...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

943 views

1 answer

bluetooth - How to add Serial Port Profile v1.2 in Bluez v5.5?

My OS is Yocto (2.4 rock). I checked to Bluez website, it supports spp(Serial Port Profile) v1.1. I need to update ... /66058515/how-to-add-serial-port-profile-v1-2-in-bluez-v5-5...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

997 views

1 answer

bluetooth - 蓝牙游戏手柄无法创建/ dev / input / event(Bluetooth gamepad doesn't create /dev/input/event)

I want to use a Gamesiyr T1d gamepad (Bluetooth) to read it's commands with Python, on a Raspberry Pi 3 B+ (Buster). (我想在 ... here? (我在这里想念的是什么？) ask by XYAB translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

bluetooth - 使用HC05 [STM32]连接到ELM327 BT（不像看起来那样简单）(Connecting to ELM327 BT with HC05 [STM32] (Not as simply as look like))

i would like to connect STM32F4 with ELM327 via bluetooth using HC-05. (我想使用HC-05通过蓝牙将STM32F4与ELM327连接 )I've got some ... s wrong? (有谁知道，怎么了？) ask by HansAndDeep translate from so...

asked Mar 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

bluetooth - 使用HC05 [STM32]连接到ELM327 BT（不像看起来那样简单）(Connecting to ELM327 BT with HC05 [STM32] (Not as simply as look like))

i would like to connect STM32F4 with ELM327 via bluetooth using HC-05. (我想使用HC-05通过蓝牙将STM32F4与ELM327连接 )I've got some ... s wrong? (有谁知道，怎么了？) ask by HansAndDeep translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

bluetooth - 蓝牙游戏手柄无法创建/ dev / input / event(Bluetooth gamepad doesn't create /dev/input/event)

I want to use a Gamesiyr T1d gamepad (Bluetooth) to read it's commands with Python, on a Raspberry Pi 3 B+ (Buster). (我想在 ... here? (我在这里想念的是什么？) ask by XYAB translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

bluetooth - 蓝牙游戏手柄无法创建/ dev / input / event(Bluetooth gamepad doesn't create /dev/input/event)

I want to use a Gamesiyr T1d gamepad (Bluetooth) to read it's commands with Python, on a Raspberry Pi 3 B+ (Buster). (我想在 ... here? (我在这里想念的是什么？) ask by XYAB translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

bluetooth - 蓝牙游戏手柄无法创建/ dev / input / event(Bluetooth gamepad doesn't create /dev/input/event)

I want to use a Gamesiyr T1d gamepad (Bluetooth) to read it's commands with Python, on a Raspberry Pi 3 B+ (Buster). (我想在 ... here? (我在这里想念的是什么？) ask by XYAB translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

938 views

1 answer

bluetooth lowenergy - Can an Android app discover a local BLE GATT server?

If Android app A sets up a BLE GATT server, can Android app B (on the same device) discover and connect to that GATT server as a client?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

bluetooth lowenergy - Can Scanner know the advertising channel?

As described, BLE Scanner can not know the advertising channel. How to get BLE advertising channel index number ... link-layer-connections Can Scanner know the advertising channel?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

bluetooth lowenergy - Service returned by GetGattServicesForUuidAsync doesn't help enumerate characteristics

Instead of searching for the service of interest, I tried the following auto f = leDev.GetGattServicesForUuidAsync(servUuid).get( ... know what is that I am not doing right, Thanks...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

bluetooth - Which BluetoothLE handle do I need to write on to enable notifications?

This is my first shot working with bluetooth and I'm confused about which channel I should be sending my write ... be sending notifications with my actions. Thanks for any help!...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

899 views

1 answer

bluetooth lowenergy - How to check the number of Ble devices that can connect with an Android Phone

Each phone can connect a limited number of Ble devices, how do I know how many Ble devices one phone can connect to Thanks All...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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