Questions tagged [bluetooth]

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

280 questions with no upvoted or accepted answers
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Audio over Bluetooth module via GPIO

I've worked with the HC-05 Bluetooth module which is a popular module having standard UART TX/RX lines that can be directly connected to the RPi's GPIO. You can use it to set up a Bluetooth terminal ...
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1answer
35 views

Pi Zero W Bluetooth Connection Getting Dropped

I have a Rpi Zero W with headless setup and I am trying to connect my bluetooth speaker into my Raspberry Pi W. I followed this Setup Bluetooth on Raspberry Pi I followed these steps to be exact 1. ...
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30 views

Receive and send bluetooth audio to bluetooth device from Raspberry Pi 3

I have the Raspberry Pi 3 with the latest version of Raspbian Buster and I am looking for a way to have the RPi to receive Bluetooth Audio from a phone or laptop and output the audio to a bluetooth ...
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2answers
105 views

BlueZ BTGATT-client.py WriteValue

I had a successful attempts with BlueZ-5.50 > test > example-gatt-client.py with ESP32 set as HeartRate Sensor Server.I am able to read from ESP32 which i modified to suit the BlueZ example. ...
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1answer
39 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
42 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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1answer
78 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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0answers
63 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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52 views

Can I use A2DP profile as audio input in a phone call for higher quality audio? I am aware this would remove the option for using microphone

I've been able to connect my raspberry pi 4 to my phone as a bluetooth HSP/HFP profile. I used PulseAudio and ofono for that, following this tutorial: https://scribles.net/enabling-hands-free-profile-...
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88 views

Route native Alsa app audio to bluetooth speaker with Pulseaudio?

I have an app that only supports Alsa, and I want to route its audio to a Bluetooth speaker. I'm attempting to use Pulseaudio to do it if that is possible. The Bluetooth speaker is paired and I can ...
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73 views

Bluetooth headphones keep disconnecting/reconnecting

I have a pair of SoundbudSlim+ that I've been using for years on my phone. Trying to get them to work on the Pi4 running up to date Raspbian. I don't need the microphone, just the audio is fine. The ...
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27 views

How to set up an Access Point / WiFi Repeater to connect through Bluetooth?

I had successfully set up my raspberry pi as an access point as WiFi repeater followed this guide: Access point as WiFi router/repeater, optional with a bridge. I would like to set up my raspberry pi ...
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82 views

Serial port communication between nRf52840 dongle and Raspberry pi 4 using Ble

I need to pass a stream of data from raspberry pi 4 to PC through Ble. I can successfully build and run \examples\peripheral\usbd_ble_uart. It can communicate with my android phone using nRF connect ...
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25 views

RPi3 Bluetooth Tethering Setup

I'm trying to setup automatic Bluetooth Tethering without a GUI, and I can't find anything that works online. A lot of forums just end at the mention of "Blueman." The only way I could even find to ...
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0answers
14 views

Headless bluetooth pairing with PIN and making it non-discoverable after pairing

I have used simple-agent found on this link, I wanted to use my Raspberry Pi heedlessly, hence I have hardcoded a specific pin in the code, instead of returning the value entered on the Raspberry Pi ...
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0answers
170 views

Failed to start Bluetooth Service

Could someone help me to rectify this error? pi@raspberrypi:~ $ sudo service bluetooth status ● bluetooth.service - Bluetooth service Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled;...
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44 views

What Bluetoothctl agents are there?

Due to some bluetooth connection issues I've been having connecting some raspberry pis via bluetooth (just for context), I've been looking into different bluetooth agents I could use. There are a few ...
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94 views

Custom Dualshock 4 Script/Program

I've got a Pi 3b that I originally planned to be a dedicated Steam Link. I already followed these instructions to set up a DS4 controller to control it, and it's working just fine so far: https://...
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1answer
71 views

How do I get a list of only bluetooth audio devices?

I'm currently using pexpect in python to use bluetoothctl. I can get a list of all bluetooth devices, but is there a way to narrow down the list to only audio devices (bluetooth speakers, headphones). ...
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1answer
426 views

Problems Connecting to Bluetooth devices through python

I am trying to write a simple python script that connects any bluetooth audio device to the raspberry pi 4. I keep getting "bluetooth.btcommon.BluetoothError: (111, 'Connection refused')" Here is ...
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55 views

Mapping Bluetooth Device

I have been able to successfully map a USB controller with Raspberry Pi 4 using this tutorial: https://core-electronics.com.au/tutorials/using-usb-and-bluetooth-controllers-with-python.html I'm now ...
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0answers
20 views

Using a Raspberry Pi as a bluetooth “switcher”

I like to use a bluetooth headset with multiple devices, but it only connects to one at a time. I want to remove that hassle of always disabling then reenabling bluetooth on my devices. What I am ...
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48 views

How to make it run without internet connection? - what part of code keeps it from running?

My RBPi zero has a spotty reception close to the door where it keeps monitoring registered phones on bluetooth and trigger the door opener. What are the options to make it work without/irregular wifi ...
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147 views

Raspberry Pi Bluetooth/6lowpan to WiFi IPv6 Router. Ping6 Not working

I want to route data between BT/6lowpan interface and wifi interface on a Raspberry Pi platform. Done all the setup as described below. But the Ping6 from Bluetooth (bt0) to Wifi (wlan0) not working. ...
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28 views

What is this prompt saying about bluetooth?

I tried to fix some problems with the bluetooth and uninstall pi-bluetooth. Also installed it .But the problems are bigger now. What is this prompt saying.
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0answers
54 views

Bluetooth and wifi settings not working correctly

I'm working on a project regarding a headless Raspberry Pi 3 B+ The Raspberry have to work as a Bluetooth-speaker with a HifiBerry Amp2 hat on top. The Bluetooth has to be open, and able to accept the ...
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153 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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362 views

bluetoothctl in debian 10 pairing poblem

When I try to pair my RPI Bluetooth with some other Bluetooth it pairs some time and then it is dis-pairing by itself. How can I fix this problem? My OS is Raspbian 10 buster and the version of Bluez ...
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768 views

Alsa Lib PyAudio error on Raspberry Pi 3b+

I was looking at an old question that gave advice for fixing these errors: ALSA lib pcm_dmix.c:1052:(snd_pcm_dmix_open) unable to open slave ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM ...
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136 views

How to access bluetooth controller on `/dev/input/js0` as user/group?

I'm working on an application that is reading an XBox controller connected via bluetooth. After configuring it (see https://pimylifeup.com/xbox-controllers-raspberry-pi/), I noticed that only root has ...
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0answers
53 views

How to connect to Android to Raspberry Pi through Bluetooth

I have been trying to connect my Raspberry Pi B+ with my phone through Bluetooth, my Android phone is also paired with the Pi but couldn't connect. I also tried to connect from terminal using ...
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27 views

Can't get bluetooth headphone mic working with pi

I am trying to get my Bluetooth headphone mic working with pi b+, my headphone gets connected and audio output is also working but its mic isn't working with pi. I had gone through several online ...
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37 views

Trigger Volume Up key press in Android with Bluetooth in Node.js

I'm making an app in Node.js and I need to make a remote shutter for Android's camera via Bluetooth. I'm using Bleno/Noble libraries to achieve Bluetooth connection. As far as I know, selfie sticks ...
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251 views

Raspberry Pi 3 emulating bluetooth keyboard running server

I'm trying to emulate bluetooth keyboard on raspberry pi 3. I'm trying to connect my RPI3 with my lapbtop first via btk_server.py code which I got from github. I downloaded the code from github and ...
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31 views

How do I use my RPi3 to act as a wireless adapter to make a nintendo switch controller?

GOAL: to make a wireless nintendo switch controller First steps, i want to be able to connect a keyboard to the Pi3 to use as a wireless keyboard ie. can connect to another computer or device and ...
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237 views

Mopidy with PulseAudio sound over TCP

So I have been struggling with this for a while now and looked everywhere for solutions. I have installed Mopidy with Spotify extension on my Raspberry Pi 3B but I can't seem to get the pulseaudio ...
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75 views

Can't get Recalbox to pair with my Apple wireless(bluetooth) keyboard 2011

I have a raspberry pi 3 running Recalbox v6.0 and an apple wireless keyboard 2011. I cannot get Recalbox to pair with the keyboard. I have read some posts which suggest you have to unpair the ...
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0answers
234 views

Bluetooth Device keeps connecting/disconnecting (Raspi 3B, Stretch)

I set up my Raspi as A2DP sink and I am able to connect my Laptop and stream audio to the pi. Now I want to connect another device to stream it's audio signal and make FFT analysis. The problem is ...
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0answers
116 views

Pi Zero W 1.1 dead wifi

About a month or two ago I bought a pi zero w from microcenter for a project but I didn’t start on it until now. I now realize the Pi that I got is one of the defective ones with a bad firmware, so ...
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373 views

Raspberry Pi/OBDII/Serial Communications over Bluetooth

Thanks for having a look at my post and my problem :) I'm presently developing an automotive on-board diagnostics scanner application in python3/wxPython. For the communications heavy lifting, I'm ...
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0answers
33 views

Bluealsa not discovering nor connecting with iPhone

I am having a problem in trying to get my iPhone able to discover the raspberry pi as well as getting the raspberrypi to pair with the iPhone. I am using bluealsa as pulseaudio got replaced, however ...
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1answer
1k views

How to set up the Edimax EW-7611ULB combo Bluetooth WIFI dongle

Although, this dongle works (for awhile), there is a problem with the bluetooth driver. After streaming for about an hour, the driver eats up all the Pi memory and the Pi stops responding. Power ...
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0answers
398 views

Connect Raspberry Pi via Bluetooth to Sound Bar

after spending the last couple of weeks trying to connect my bluetooth soundbar to my Raspberry Pi 3 B+ and playing all audio output on it I am close to giving up. Using the GUI I can successfully ...
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0answers
214 views

l2ping bluetooth not timing out fast enough

I have been experimenting with pinging a list of known Bluetooth MAC addresses for a tracking project with a Pi 3, however, the ping does not seem to time out until after 5-7 seconds if there is no ...
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1answer
446 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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153 views

bcm2835-aux-uart 3f215040.serial: unable to register 8250 port - -28

I've compiled LFS for my RPi3B. I've put BCM43430A1.hcd, brcmfmac43430-sdio.bin and brcmfmac43430-sdio.txt in /lib/firmware/brcm/. Copied /usr/src/linux/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b....
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295 views

Raspberry Pi 3B+ Bluetooth undiscoverable on iPhone

I installed latest version of Raspbian Stretch with desktop (which comes with pre installed bluetooth). I turned the bluetooth on, and made it discoverable. At the same time I searched for available ...
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502 views

Live video streaming over bluetooth

I'm currently making a little project, and i need my Raspberry Pi 3b to transmit an USB webcam stream trough Bluetooth to display to an Android smartphone or any other portable device (like another ...
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129 views

Raspberry Pi Audio Bridge

I would like to connect audio from a TV to be received into a Raspberry PI and then be transmitted via Bluetooth to a wireless Bluetooth speaker, is that possible? If so, how? Audio card?
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589 views

Trying to use Ethernet over Bluetooth between Pi boards

I'm trying to use SSH over Bluetooth via Ethernet over Blutooth. I've based my effort thus far on: Bluetooth PAN Network Setup with BlueZ 5.X I believe I have faithfully followed the instructions. ...