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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36 views

Bluetooth stops working after using HDMI audio output

I have been unable to hear anything from my rasberryPi4 out of my wireless headphones just after I used the HDMI port on my monitor (which also stopped working at the same time). I know that the issue ...
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25 views

Why does this callback method run indefinitely?

I've recently stumbled upon this very useful code which I got from this link https://github.com/Douglas6/cputemp. I've modified the code for clarity reasons and so "application" class is ...
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Gdb and the use of bluetooth

Need to get the device "name" for bluetooth. What I mean; do they use ttyAMA0 or something else?
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80 views

Raspberry Pi 1 B+ bluetooth not working with dongle

I have a raspberry pi b+ and i'm currently trying to establish connection over bluetooth with my pc/phone to send some data from a sensor. I have plugged in a generic usb bluetooth dongle and it is ...
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1answer
60 views

Sharing my phone's internet to Raspberry Pi 3 via Bluetooth (Tether)

I want to share my mobile data from my phone to the pi (so when I connect to the pi, it automatically gets internet, so I dont have manually setup a mobile hotspot). I tried this with some older ...
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16 views

Switch between Bluetooth Inputs

I have a phone and a tablet that I would like to connect via Bluetooth to an Amplifier in my car. I would like to be able to easily switch the audio between the two devices. eg, quickly switch from ...
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24 views

Send Audio to Android Device Over Bluetooth Programmatically

I'm hoping to use the Raspberry Pi as a Bluetooth microphone for an android device. The basic idea is to feed audio from a USB microphone to the Raspberry pi, remove background noise, and then send ...
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61 views

Running bluetooth on Raspberry Pi 4

I hope this is the correct group for this question. If not I can redirect the post. I have developped a BSP for Raspberry Pi 4 2G using Buildroot. I enabled the rpi-bt-firmware, rpi-firmware and the ...
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52 views

Multiple Bluetooth speakers with Multiple Raspberry Pi’s

I want to be able to connect multiple Bluetooth speakers to raspberry pi’s, with two different inputs. My end goal is to have a Sonos-like system, where all the speakers are playing in sync. Inputs: ...
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38 views

What is the best method to sniff bluetooth on a Raspberry Pi?

Just bluetooth sniffing, what software does that, has to work on a Raspberry Pi
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44 views

HELP - Bluetoothctl Scan in Python3

I'm new to python and with bluetoothctl and I need to automate the bluetoothcl scan on process in python so that I just need to open the python file and start scanning right away. I've been doing a ...
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152 views

How To Revive Failed Bluetooth?

Raspberry Pi 4 Model B Rev 1.2, Raspbian GNU/Linux 10 (buster) This is a remote Pi that reads temperature sensors (indoor and out) and posts the results to a web host. Cha Am Weather The sensor ...
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192 views

RPi 3b+; updating bluez to 5.50-1.2~deb10u2 fails/hangs/

As topic says, after running apt update the OS (running Raspbian GNU/Linux 10 (buster) on kernel 5.10.52-v7+) wants me to update bluez and its dependencies. The version it's trying to update to is 5....
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1answer
90 views

How to stop pulseaudio from deleting your .asoundrc file on startup?

I have a Raspberry Pi 4 and have been messing around with Pulseaudio and Alsa a lot lately. I wrote an asoundrc file which I want the system to run every time it's on. However, Pulseaudio keeps ...
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17 views

Calling pulseaudio: paplay - p record.wav from python script doesn't work

Objective: run a wav file from python on a Bluetooth headset paired to the raspberry Pi. So far my code works well when I run it on the raspberry pi in python. Once I call the same python script from ....
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1answer
88 views

Accepting and trust automatically Bluetooth devices

I will use my Raspberry Pi headlessly, that's why I would like to be able to connect to it with my smartphone in Bluetooth. Hence I need it to pair and trust automatically the device (with or without ...
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99 views

Pi 4, Bluetooth 5, Long-Range mode

I'm playing about with flic buttons and the flicd service and only getting about 10m range indoors at the moment. Although Bluetooth 5 has the Coded PHY mode for long-range, I've read that the pi4 (or ...
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1answer
54 views

Raspberry pi 3B+ bluetooth yes/no

I hope someone can help me with this, as it's driving me crazy! I have connected mmy wife's and my mobile/cell phone via bluetooth to the rpi. So far so good. However, when I run bluetoothctl I notice ...
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2answers
93 views

Is there a way to lower the bluetooth signal strength, on a Pi 4?

I've set up the bluetooth and Works as intended, but the signal strength is much more than I need it to be. I need the range to be half of what it is right now. Update: Found a solution using the ...
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1answer
55 views

Detecting a Pi Bluetooth server on an IPhone

I am trying to set up an IoT device using a Raspberry Pi 3A+. I want the Pi to connect to WiFi, so for this I set up an access point on which the WiFi credentials can be sent. The issue is finding ...
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14 views

How to list only valid bluetooth devices?

I have setup a Pi4 using PyBluez to create a Bluetooth server. The client is on an Android phone using Android Studio. So far it is working the way I need to except that I wish to automate the first ...
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48 views

How to fix possible dbus permissions problem on bluetooth connect?

I'm trying to connect my Sony DS4 Controller to my RPi4 over Bluetooth. It has worked before and I have my BT headphones working, but the controller now really don't want to Connect. I have ...
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257 views

Cannot Pair Xbox Series X Controller via Bluetooth

I'm trying to pair an Xbox Series X controller to my Raspberry Pi 4B, but I've had no luck despite following all online instructions. I've disabled ERTM by running echo 'options bluetooth disable_ertm=...
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48 views

Use RPi3 to read sensor data from Arduino Uno with HM-10 bluetooth module

I want to use Rpi3 and bluepy read sensor data from Arduino Uno with HM-10. I write program like this : import bluepy.btle as btle p = btle.Peripheral("D8:A9:8B:7C:01:EB") while True: # ...
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119 views

Sound playback trough bluealsa-aplay not working as a service

I am trying to manually setup my raspberry pi 4 as a Bluetooth audio receiver, but there is no sound playback when I start the bluealsa-aplay service I created. It only works when I run the bluealsa-...
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1answer
59 views

How much is ble Tx power of RPI zero WH

I'm planning to estimate distances between some RPI ZERO WH using bluetooth. I'd like to know Tx power of BLE of RPI ZERO WH to measure distance.
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26 views

BlueZ 5.58 Connection Fail

I am working on the BlueZ 5.58 library using the Raspberry Pi 4. So far, I am able to install an updated version of the BlueZ 5.58 & making sample test cases. (refrance BLE GATT Server) While ...
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23 views

BlueZ 5.58 Authentication using Public & Private key

I am working on the BlueZ 5.58 library using the Raspberry Pi 4 module on Raspbian OS. I have found that the agent.py application has implemented the public-private key & fixed key authentication. ...
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448 views

Using a USB Bluetooth dongle on Pi 4

I recently purchased the Techkey Bluetooth dongle since I know the Pi system is unable to connect to multiple Bluetooth devices simultaneously. Unfortunately, I haven't had any luck doing so. I got ...
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352 views

How to make sure BlueZ NoInputNoOutput agent does not ask for user authorization?

I am trying to pair my custom made BLE device with a Raspberry Pi 4, using the bluepy library, programmatically. I do not want to press "accept" or type "yes" whenever I try to ...
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297 views

Audio alternatives for Raspberry Pi 400

So as you all know, the Raspberry Pi 400 does NOT have an audio jack, which is pretty annoying especially when I need to get audio output from it. Can I connect to a Raspberry Pi 3B via Bluetooth from ...
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1answer
67 views

Can I connect over 15 Bluetooth devices with raspberry Pi 4B 4GB ram using usb Bluetooth apapters

I have a raspberry Pi 4B 4GB ram and I want to connect it to 16 Bluetooth oximeters(BLE) and take readings after every 20 secs. Now I know that pi can connect to only 7-8 Bluetooth devices at a time ...
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2answers
194 views

bluetooth is not working after updation

am using pi 4 8GB for last 6 months everything was going well. Last week i updated my OS(raspbian). After that bluetooth is not working properly. i can able to pair a device successfully, but am not ...
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100 views

Raspberrypi4B: Unable to establish a BLE connection between RPi4B and Ubuntu Laptop

I am unable to establish an ble connection between my Raspberrypi4B and Laptop. Configuration is as below: Laptop: Ubuntu-20.04.2 LTS, bluez version: 5.53 Raspberrypi4B: Ubuntu-21.04 bluez version: 5....
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51 views

Raspberry pi4 + Lineage OS + bluetooth headset Dont work

hello im having some problem to use a headset bluetooth on a raspberry. in you tube i can hear the sound perfectly but in Linphone ( a softphone app or any other softphone ) i can hear and talk ...
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16 views

Raspberry pi with Android lineageOS 17 external bluetooth dongle

I have a raspberry pi3 with a android lineageOS 17 instaled. but in my raspberry my bluetooth is not working. I bought a bluetooth dongle usb to pair my bluetooth headset but it dont recognize the ...
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54 views

RPI-4 Bluetooth board does not find iOS devices

On a brand new RPI-4, I cannot find apple iphones neither using module bluetooth nor bluez package. I tried to scan for BLE devices and all the command line tools such as bluetoothctl and hciconfig to ...
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88 views

Cannot find any devices when using BlueZ as bluetooth mesh provisioner

I am currently trying to setup a bluetooth mesh network using 5 raspberry pi 4's using BlueZ's solution to do. After having setup the device to act as a provisioner I have issues when trying to scan ...
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122 views

Raspberry Pi 4B: Cannot pair any bluetooth devices

I have just installed the current release of TwisterOS (2.0.1) together with the packages (bluez blueman pi-bluetooth and bluetooth) on my brand new Raspberry Pi 4B. Even though scanning works just ...
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60 views

Raspberry Pi 4 not detecting Wireless headphones

Raspberry Pi 4 is not detecting my realme Buds Wireless Pro headphones I tried trouble shooting the issue by referring the following : https://peppe8o.com/fixed-connect-bluetooth-headphones-with-your-...
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1answer
607 views

Pi 4 change Bluetooth MAC adress

I want to change the bluetooth mac address of the builtin wifi/bluetooth chip, but all my attempts have been futile despite multiple sources (including the commands) implying it to be possible. See e....
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330 views

Interpreting errors in bluetoothctl service

I have a retropie on Raspberry Pi 4 that doesn't seem to connect to my Xbox one controller. Checking sudo systemctl status bluetooth.service yields bluetooth.service - Bluetooth service ...
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1answer
156 views

Vlc only outputs audio to bluetooth

I've got a weird problem right now. I updated everything a couple of weeks ago (sudo apt update, upgrade etc.) and after that I had issues with the sound output to my tv via hdmi. I managed to fix it ...
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20 views

Sound settings seem to be fine but don't hear anything

I've got the RPI4 Model B. A while ago I had it connected trough Bluetooth with a simple JBL speaker. It worked and I could hear the sound that was coming from the Pi. Recently, I moved the Pi and ...
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116 views

Bluetooth device connection lost after a second

With the Raspberry Pi 3B i was able to succesfully pair and connect a Barcodescanner (OPN2006). For this, I used the following code: pi@raspberrypi:~ $ bluetoothctl Agent registered [bluetooth]# power ...
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19 views

Is it possible to configure a Raspberry Pi 4 to become a Bluetooth adapter for a desktop PC?

My PC Doesn't have bluetooth, so I wold like to use my Raspberry pi 4 as a bridge between my switch pro controller and my desktop PC. I've read that i'ts possible to connect the controller to the ...
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3answers
116 views

Bluetooth Audio Sink causing long shutdown

I have a Raspberry Pi 4B running the latest version of Buster. I am going to run the system headless booting directly to a command prompt (but not the lite version). I have written a python program ...
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1answer
89 views

How to get Bluetooth back in panel?

After install the drivers and stuff for a 3.5 inch LCD screen, my RPis Bluetooth seems to be disabled... The applet doesn't show in the panel like the wifi and volume does. Before the installation ...
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40 views

How to apply authentication pin while making BLE connection using Bluez5.60

I'm trying to connect my Raspberry Pi 3B+ over BLE GATT Server using the Bluez5.6 library. I have successfully tested the BLE server application. Able to connect & communicate over the GATT ...
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189 views

Getting iPhone bluetooth to pair with a raspberry pi to serve as 4G hotspot

I'm trying to figure out a way to pair an iPhone to a Raspberry Pi 4 (with a PIN ideally, but without is okay). Once paired, I'm going to set up the iPhone as a hotspot. All user interaction has to be ...

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