Questions tagged [bluetooth]

For questions pertaining to Bluetooth setup, usage and troubleshooting on the Raspberry Pi, whether onboard or via a USB dongle.

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Using TomTom LINK 410/510 with RPi

Basically, my car insurance comes to an end in a week or so. It’s black box insurance so I was wondering if the old device could be reverse engineered to work with an RPi. It is either a TomTom LINK ...
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1answer
12 views

Not getting an “Enter Pin” prompt when pairing with BLE device

I have a custom board that uses BLE to get Wifi credentials. I'm trying to pair with the board using my Pi. I'm using bluetoothctl. Here's what I get when I try to pair: [bluetooth]# agent on Agent is ...
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25 views

Best way to expose a web interface without connecting to a Wifi

I've multiple small projects on raspberry pi zero w in mind. They are all some 3D printed part that will have some led, sensors, ... Usually, they will work independently, and some of them will be ...
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8 views

Pi4, Enhance BLE channel hopping

As the Cypress chip on RPi4 is handling Wifi and BLE, it can be useful if it would share Wifi channel information prior BLE connection. In BLE connection request RPi sends out the allowed BLE channels ...
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5 views

Pi4, BlueZ Limit channels

(How) is it possible to limit the usable channels for bt connections? I.e I want to connect to a device with gatttool. As gatttool does not have any of this low-level setting., can I somehow limit the ...
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429 views

What Bluetooth profiles does the Pi Zero W natively support?

I've started looking for tutorials for Pi's and Bluetooth, but I don't have any experience with Bluetooth and Linux, and it seems that the Bluetooth stack on Raspbian and/or Linux is not full featured ...
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33 views

Bluetooth speaker connected but no audio, AV earphone no audio (only VLC is good), HDMI working propedly

My Bluetooth speaker device (JBL Charge 4) connected, but no audio. The /etc/dbus-1/system.d/bluetooth.conf edited. I change the "default" context policy from "deny" to "allow&...
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1answer
15 views

Installing Gattlib error

Like many others, I've had problems installing gattlib using pip. I've followed the steps outline in this question to no avail: Pybluez and Gattlib error The steps that give me the error: hg clone ...
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258 views

Bluetooth hci0 device suddenly missing on 4B

After a recent reboot of my 4B I noticed that my bluetooth connections had stopped working. I noticed that bluetoothctl reported no device, and further that sudo hciconfig hci0 up indicates Can't get ...
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2answers
887 views

Off grid communication

Over the last couple of weeks, I’ve become interested in off-grid communication, and I am currently looking into creating a simple communication protocol wherein multiple raspberry pi’s are able to ...
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1answer
76 views

Is there a way to connect to a Raspberry server with only bluetooth?

Let's say I installed an API on my raspberry pi (with Php, python, it doesn't matter). Is there a way for my Android phone to make direct requests on my API through Bluetooth ? (If my raspberry and my ...
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84 views

How can I get the set attribute of each “device” in an array

What I am wondering is how I can loop through paired_devices and get the "name" attribute for each device. This is only a short amount of the code, if more is needed, feel free to comment below. def ...
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2answers
8k views

Bluetooth Headphones paired/connected but no audio

I am currently running the latest Raspian Jessie on my Raspberry Pi 3 and I have attempted to use my Sony bluetooth headphones. I am able to pair and connect the headphones, but when I try to switch ...
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1answer
27 views

Disallow multiple bluetooth connections

I recently created a Raspberry Bluetooth music player with MQTT control, and discovered that, Raspberry allows multiple users to connect at the same time, and plays up to 3 people's music (which is ...
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How do I fix my crashed bluetooth? [duplicate]

After an apt update today, my bluetooth menu disappeared from the menu bar. Even the services are not running anymore. Whenever I am trying to fix something(with systemctl and apt), this message ...
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10k views

How to stream sound to a bluetooth device from a raspberry pi zero

I have a raspberry pi zero W and I would like to stream sound over bluetooth to a bluetooth-enabled speaker / headphone. So how to achieve this with alsa?
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56 views

System doesn't discover bluetooth adapter

I have custom buildroot image built for Raspberry Pi Zero W. My primary goal is to be able to activate on-board blueetoth, however I seem to have immense problems achieving it. My main problem is that ...
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22 views

BLE data receive and send from arduino HC08 to raspberry pi

I have noticed that there are lots of topics about classic BT connect to arduino and send data to raspberry pi by creating virtual port (using rfcomm) I have tried this method for BLE Device. However ...
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1answer
1k views

Bluetooth service being skipped

I'm attempting to use a HC-06 bluetooth module on a raspberry pi zero (not w). I have it wired correctly and have used it before on older versions of raspbian, but I decided to update to the lastest ...
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1answer
898 views

Bluetooth Devices List not being remembered on reboot

I've searched high and low for some kind of solution to my problem, but it seems NO ONE experiences this!? I'll admit, everything was working fine up until some random point (so frustrating, I have no ...
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1answer
17 views

RPi Zero W as bluetooth keyboard / mouse “passthrough”

I'm looking for a solution to allow me to use the RPi Zero W as a gadget that will connect to my bluetooth keyboard and then present itself to my PC as a regular USB keyboard. This is workaround to ...
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1answer
141 views

Freeze caused by bluetooth and webcam

My web app has a webcam running using ng-camera(based on webcam.js), and a separate bluetooth sniffer running on node js on the background. After several minutes running, the app and raspberry pi will ...
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22 views

Raspberry Pi as a bluetooth receiver and transmitter

I'm brand new to Raspberry Pi. I have a laptop and phone - both with spotify and media monkey. I have a set of bluetooth headphones and a bluetooth speaker. What I'd like to do is have a Raspberry ...
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1answer
496 views

No wifi or bluetooth on raspberry pi zero w

I have bought a raspberry pi zero w and performed the headless setup and used ssh to connect to my pc.But it does not detect the wifi interface and always gives 'No wireless interface found' when i ...
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22 views

Connect and use Bluetooth headset

I am on a Raspberry Pi 2 Model B with Raspbian buster and have issues using my Bluetooth headset. I tried to use some of the several available HowTos. Best working for me are the HowTos using bluealsa....
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1answer
8k views

Connect Raspberry PI 3 B to Bluetooth speaker and microphone

I have Bluetooth speaker which has microphone in it, when I use it with iPhone and my PC, the microphone works fine. Now I connected it to Raspbian on Raspberry PI 3 B via inbuilt bluetooth, speaker ...
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1answer
4k views

Headless bluetooth pairing on a raspberry pi zero using a pin?

So I recently got started using a pi zero (running the most recent raspbian) as something to drive an image display application. I'll be sending it files over bluetooth via a file transfer protocol (...
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1k views

Raspberry Pi 3B+ doesnt play audio via BT speaker

so I wanted to play audio via a bluetooth speaker. I tried it with my Phillips BTM3160 and my Creative iRoar Go. The Pi wouldn't even connect to the Phillips one and on the Creative it plays with the ...
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31 views

BluetoothError: (111, 'Connection refused')

I'm trying to connect raspberry pi 4 to my ubuntu laptop. I setup a rfcomm server on my laptop, the code is given below: import bluetooth server_sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM) ...
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2answers
1k views

Bluetooth headset paired and connected, but can't be selected as audio output

I'm stuck getting a pretty standard A2DP Bluetooth headset to work with Raspbian Buster on an RPi 4. I successfully paired it with the RPi and can connect it via the GUI, and the buttons on the ...
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1answer
607 views

Bluetooth Connecting two devices

I am trying to set up bluetooth so that I can play music from both my phone and my computer in alternation (ie, if I want to go in the other room on a call where the phone stops playing, i can switch ...
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1answer
2k views

How to boost bluetooth range?

I have had some success connecting to my Bluetooth devices but only when I'm in the same room as the Rpi. This limits the utility somewhat... I had hoped to be able to use them anywhere in my home. I ...
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1answer
205 views

Can't connect to bluetooth switch

I have a Pi3 running Jessie and I'm trying to connect to this plug, https://www.amazon.com/gp/product/B00PG50OSM/ref=od_aui_detailpages00?ie=UTF8&psc=1. I've been able to pair and trust the device,...
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265 views

Problem installing Bluetooth Dongle on Raspberry Pi 3 running Windows 10 IOT Core

I recently bought the plugable Bluetooth USB adapter usb-bt4le and I want to use it with my RPi3. I have windows 10 core IoT installed on the RPi. I have disabled the on-board bluetooth and I wish to ...
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12 views

Raspberry Pi 3 : how to find device number and card number with bluetooth

I'm trying to set up google assistant on my raspberry pi with this guide: https://pimylifeup.com/raspberry-pi-google-assistant/comment-page-2/?unapproved=27549&moderation-hash=...
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2answers
51 views

Bluetooth audio not working from webserver

I created my local website for a magic mirror project. This project includes my google calendar, weather ifo, timers, internet radio, ... For the timers and internet radio I would like to hear the ...
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40 views

Playing audio on Bluetooth speaker using pygame

I know there are already posts related to this question, but there aren't any I can find that have worked for me. I am attempting to get an iHome B66 Bluetooth speaker to play sound coming from my ...
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1answer
196 views

Not able to pair Raspberry Pi3 and iBeacon using Bluetooth

In my current project, I am working with iBeacon in the area of IoT. Basically iBeacon works on Bluetooth wireless technology. I am using Raspberry Pi 3 (with in-built WiFi and Bluetooth). Pi 3 ...
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24 views

How to bind raspberry pi bluetooth com ports to a /dev/rfcomm or /dev/ttry device

I have bluetooth device which on windows has 2 com ports com3 amd com4 I found the device using bluetoothctl agent on scan on pair ##:##:##:##:##:## rfcomm bind /dev/rfcomm0 00:16:A6:00:06:E6 ...
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144 views

bluetoothctl hangs with “connect to bluetoothd”

I have a Raspberry Pi 3 and I have been playing with the bluetooth functionality. It worked for a while: I successfully paired a Windows machine with my Pi, but now it does not work anymore. I used ...
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7 views

dbus and qdbus not working suddenly

I am using dbus and qdbus to control my phone from a pi using Bluetooth to pause play etc. songs and all of a sudden dbus and qdbus dont work anymore All other functions work i can head music from he ...
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1answer
690 views

WHY my Python BLE device discover codes don't catch as many devices as Raspberry Pi OS panel does?

I developed some BLE device discovery python codes from the example given in https://github.com/pybluez/pybluez/blob/master/examples/ble/scan.py which are run on a Google AIY Raspberry pi. from ...
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1answer
266 views

Pi 3 Bluetooth Software Requirements

I am using Minibian(a minimal Debian based OS), and trying to set up bluetooth so that I can stream audio to a bluetooth speaker from my Pi. What are the minimum packages I need to get bluetooth ...
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14 views

How to set up /etc/asound.conf for both bluetooth and soundcard on Rpi3

I can get sound to bt or soundcard, but how to set up for both?? this in /etc/asound.conf give bt pcm.!default { type plug slave.pcm { type bluealsa device "91:AD:70:FD:8D:3C" profile "a2dp" } } ctl....
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2answers
2k views

play audio stream when bluetooth connects

I have a Raspberry Pi Zero W and want it to use as an Internet Radio. So I wrote a Python script that connects to my bluetooth speaker and starts a stream. Everything works fine, but i always need to ...
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20 views

Chopping audio over bluetooth with PulseAudio

I have an issue with a Raspberry Pi 3B+ and audio over bluetooth, it is configured with PulseAudio and BlueZ to connect my phone on the Pi, it works great but there is minor audio cuts (less than 0.5s)...
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13k views

Failed to connect: org.bluez.Error.NotAvailable - Error

I am trying to connect a HC-05 Bluetooth Module (connected to Arduino Uno) to my Raspberry Pi 3 in the hopes of achieving bluetooth communication between the two to send data from the Uno to the Pi. ...
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48 views

Read Incoming Bluetooth Audio On Pi With Python

this is my first post on here! I am trying to make my raspberry pi 3 a bluetooth speaker which synchronizes beat of the music being played from a phone to an LED light strip. For the LED light ...
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2answers
17k views

Raspberry Pi 3 Bluetooth “No default controller available”

I'm running Jessie, and an apt-get update/upgrade has no work to do. The kernel is at version 4.4.11-v7+ #891. An hcitool scan says there's no device available. bluetoothctl says No default controller ...
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1answer
28 views

Bluetooth sound off

after upgrading to debian 10, have encountered problems with the sound transmitted to my bluetooth headphones. The pairing between the RPI and the headphones is done, once from the audio menu I ...

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