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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bluetooth network traffic monitoring

Is there anything that I can use to monitor my Bluetooth traffic just like the resource monitor in windows? I want to know the B/sec of sent and received packets of Bluetooth.
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Bluetooth on raspberry 4 without Linux

I'm working on non-Linux compliant OS and now trying to enable bluetooth on Raspberry Pi 4. I have some necessary drivers such as: gpio, uart (pl011 and mini-uart), mailbox and expgpio through that ...
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Connecting Raspberry Pi to Two HC-05

I am working on a project that requires me to use a Raspberry Pi 3B+ to read frequently published (< .1 sec) data from two HC-05 devices and write that data to a file. Is this possible or do I have ...
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Running script from cmd for bluetooth connection

my project requires data transfer with android app via bluetooth. I’ve tested the code by running it in thonny and it works fine. Since I want to run the script as soon as raspberry pi boots up, I ran ...
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Raspberry Pi sending a file to Windows 11 via Bluetooth

My goal is to send an image from a Raspberry Pi 4 to a Windows 10 / Windows 11 machine using bluetooth and OBEX. So far I can pair the two devices but the Windows machine sees the Pi as an audio ...
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Bluetooth keyboard and mouse not responding properly Pi4

I got Pi4 for about a year now. I have a keyboard+mouse combo with one bluetooth dongle. It had been working perfectly fine but now there are problems. If I take the keyboard and mouse closer to the ...
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Can I have a Raspberry Pi serve as an emulator for my BLE device?

I've just discovered that the (software) BLE emulator that I had hoped to use for a project I'm working on is non-functional, so I need to take another approach. I gather that there are all kinds of ...
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Bluepy connection with ESP32 and PRI4 issues

Recently I used bluepy in ESP32 and RPI4 Bluetooth connection, ESP32 for server, RPI for clint, found that the data is collected about 5 to 50 times , the connection will be disconnected, after ...
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How to aggregate time-synced data from one RPi to another over bluetooth

I am currently working on a landslide-detection project coded in Python for a research group. At present we have two different sets of sensors running on two different RPis. One RPi has a strain gauge ...
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Bluetooth LE between raspberry pi and nrf52

I try to use raspberry pi 4 to connect nrf52 via Bluetooth LE,I can use nRFconnect to connect nrf52,but when I use raspberry pi to connect to nrf52,and failed. pi@raspberrypi:~ sudo gatttool -t ...
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two raspberry pi 4 communication via BLE

I need to pass a stream of data from raspberry pi 4 to pi 4. and I downloaded /home/pi/Downloads/bluez-5.50/test/example-advertisement,and can successfully run it,two pi can connect,but I don't know ...
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Update BLE broadcast message at low latency

I want to use RPis to broadcast every 50ms a new updated message of just a few bytes, for its listeners to receive. Is this possible? How?
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Send audio output to Bluetooth speaker

I am working on a python script that lets raspberry pi 4 play audio announcements (mp3 format) at specified times. I am using the python os library to send the play audio commands to system. aplay -l ...
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bluetooth is not connecting

I'm having trouble connecting my Raspberry pi 400 to my bluetooth speaker: GDBus.Error:org.bluez.Error.AlreadyExists: Already Exists Any idea on how to resolve this? Same message pops up for my ...
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SSH to RSP 0W via bluetooth

I'm starting a new project for my RSP 0W. I wold like to SSH to it via bluetooth from my Mac (Big sur). I already can SSH via wifi but for my project no wifi will be available. I already tried ...
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Want to transmit video data from a sensor connected to my Raspberry Pi over bluetooth to a mobile device

As I understand sending video data over bluetooth isnt its primary use case but the resolution of this video is extremely small therefore I think it might be possible in that sense. This is my first ...
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Raspberry Pi is unable to pair to iphone

I see the the PIN is sent to device and once the pin accepted it tries to pair but fails -"Timeout was reached"
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DAC quality effect on Bluetooth music streaming

I want to transmit music(Spotify and mp3 files) to my Bluetooth speakers from my Raspberry Pi. I have read that the onboard DAC on Pi isn't good so use an external DAC with better sound quality. ...
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Is there a limit to bluetooth dongles (for Beacon Advertising)

Hey happy helpful people, this might be a generic PC or maybe UNIX question, I'm not sure. I'll ask here since I plan to do this with a Pi, but further information would be also fine. I'm planning to ...
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Bluetoothctl from script with submenu

I m just trying to prepare script which emulate BLE Peripheral Device. I am using bluetoothctl like this: bluetoothctl -- power on bluetoothctl -- advertise on Above scripts works properly, but I ...
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Can't connect and pair to bluetooth devices after upgrade from Buster to Bullseye

I did an upgrade from Debian Buster to Bullseye on a Raspberry PI Zero W. Now I can't connect to bluetooth devices anymore and can't pair. Also already paired devices don't work anymore. I've tried ...
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WiFi/BT link on desktop as icon

I'm setting up a Pi4 to land on a blank page and have streaming services like Netflix as large icons and they run in kiosk mode. So I've hidden the bar across the top. What I would like to do is to ...
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Short Bluetooth audio distortion at regular intervals

I'm using a Pi 4 to receive Bluetooth audio and play it back via HDMI on a TV, using stock 32 bit Raspi OS Buster. It works out of the box, using the built in Bluetooth device. However, at regular ...
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Connect wirelessly to pi 4 terminal

What is the simplest way to connect directly to a raspberry pi 4 wirelessly so that I can run commands in a terminal, equivalent to SSH'ing to it but without an ethernet cable or an Access Point? The ...
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BLE cannot scan after cloning Raspberry Pi 3

I have raspberry-pi 2 and i made a python program. My python program can detect BLE and send scan results using MQTT. The program will run automatically when restarted [Using cron-table]. Then I did ...
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Bluetooth.service issue on Raspberry Pi 4

I have recently received a new Raspberry Pi 4 board and am currently trying to enable the bluetooth service using an external adapter. However, I had encountered the following error: bluetooth....
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Keep UART Bluetooth enabled during boot with USB Bluetooth adapter installed

I have a Raspberry Pi 3 Model B Rev 1.2 with a built in Bluetooth adapter on the UART, if I plug in a USB Bluetooth device, both Bluetooth adapters are enabled and work. However, if you reboot the RPI ...
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RF Direction Finding

Is it possible to build a system with a raspberry pi and antennas to find the rough direction of a radio frequency emitter such as a Wifi router, a Bluetouth Tag, or, a 5G cell tower? I cannot use ...
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Send USSD command to mobile phone connected via bluez to raspberrypi 4

I just start working with ofono and when I want to send USSD command. when I use initiate-ussd <modem> I get this error: Traceback (most recent call last): File "/home/pi/workspace/libs/...
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Pi can't make WiFi, Bluetooth and USB device detection work and boots in command line every time. Is there a possible fix?

My Raspberry Pi 4B 8GB RAM has TwisterOS. A power outage happened and then the Pi boots in CLI only at first. I have to execute 'startx' everytime I boot. Then some of my settings were changed, like ...
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problem connecting x-box controller to RPI raspian buster (NOT retropie)

I have tried all the tutorials I can find (eg https://howchoo.com/pi/xbox-controller-raspberry-pi for connecting my new X-box One wireless controller but cannot get it to work. Please help! If I ...
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Noisy sound when using bluetooth HFP with Ofono and pulseaudio

Following everything mentionned here On my Raspberry Pi 4 with Raspbian Bullseye. I have an issue with the incoming and outgoing sound of HFP when calling with my paired phone. I can hear and speak ...
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ps3 remote stopped connecting to RETROPIE

Hi I am new to retropie and just flashed my first card yesterday. The day I flashed my card, I managed to connect an original ps3 controller with no issues but this morning when I woke up my ...
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Use bluetooth keyboard from startup

I wanted to install manjaro on my raspberry pi, but there is problem: I only have bluetooth keyboard, so I can't select anything in bios. Is there a way to connect is from startup? Sorry for my ...
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Sendind data from Huawei Scale 3 to Raspberry Pi

I plan to buy wireless body scale and it would be nice to get that data wireless to my Raspberry Pi 4. I don't want to use any smart phone apps and clouds. OpenScale supports many scales but it is ...
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Raspberry Pi, how can i turn bluetooth on and off over Python script?

i want to play either a sound, which is saved on my raspberry pi as a MP3 file or send a song from my phone over bluetooth to my Pi. So i found out, that if i run a song over bluetooth and play one ...
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Trying to connect my RaspberryPi4 to a Bluetooth modem and have it trusted and paired, but get error can't connect RFCOMM socket

I have a RaspberryPi 4 and am trying to connect it to a Bluetooth modem. I have paired and trusted the modem, but when I try to connect to the modem I get the message that the connection failed (from ...
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How to save the bluetooth connection type between Raspberry Pi and Android Phone?

I have a Raspberry Pi with bluetooth installed, I'm able to connect to my Android's phone via bluetooth, but it's getting connected as a headset. However, when I go to bluetooth manager on Raspberry ...
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BlueZ Profile RequireAuthentication=False not working when trying to initiate connection without pairing

Following up from this question: How can I open a connection to my Raspberry Pi over Bluetooth without having to pair? I am trying to connect from my Windows Laptop to my Raspberry Pi over Bluetooth ...
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How can I open a connection to my Raspberry Pi over Bluetooth without having to pair?

I'm extremely new to Raspberry Pi and Bluetooth in general and have been having some trouble and confusion connecting between my computer and Pi programmatically. I'm trying to open a Bluetooth ...
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Serial Communication Between Windows and RPi Over Bluetooth

I have tried following a lot of posts online, but I could still not solve my issue. I want to instantiate serial communication between my RPi and my Windows 11 computer. Currently, I have connected ...
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Sending set-top box bluetooth commands

I am trying to create an automation scenario, where i use a raspberry pi 4 as a remote controller to send bluetooth commands to an Android set-top box, what's the best way to actually make this work? ...
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BlueZ receive Bluetooth sensor information

Good afternoon, First of all I apologize for asking questions in this thread but this is my first time writing on StackExchange. I am doing a university work where it is necessary through a Raspberry ...
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How Can I Send Data from Raspberry Pi to MIT App Inventor using RFCOMM

I want to Send a Data from my Raspberry Pi 3B+ to an MIT App that I created. I can send Data from my MIT to Raspberry Pi even to Arduino using rfcomm-server.py that comes from the PyBlueZ. but I cant ...
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Bluetooth disconnects when SSH connection closes (RPi Zero 2)

I am trying to use a headless Rpi Zero 2 (Raspian 11) for bluetooth audio streaming. I can establish a connection to a bluetooth speaker using bluetoothctl connect XX:XX:XX:XX:XX:XX from an SSH ...
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How do I send user's wifi credentials to my RPI wirelessly?

I am working on a project which would require me to connect my Rpi 0 w to my home wifi. I want to send the pi wifi credentials(ssid and psk) over my phone the very first time and then on subsequent ...
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Bluletooth mic for raspberry pi

I have a bluetooth speaker. I am able to pair it with my android phone and able to take calls via it. So it does have a working microphone in it. When I connect this to my raspberry pi zero 2 W, it ...
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Bluetooth not functioning on default Arch Linux (armv6) install

I am simply trying to get Bluetooth to work on the latest version of Arch build for the Raspberry Pi Zero W (original, not 2). I have the latest version of Arch(armv6) successfully running on the rpi ...
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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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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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