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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Python script is using 3.5mm jack instead of Bluetooth speaker

I am trying to use a python script which works fine as intended. Even the Bluetooth speaker is working fine with this RPi when playing some audio or video file through GUI. The only problem I am ...
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Can Raspberry Pi receive a smartphone screen feed wirelessly and display on LCD screen?

I am envisioning an application and trying to decide if Raspberry Pi could be the right platform for this. I have a 4" LCD screen which can be powered by a Raspberry Pi. The idea is to mirror the ...
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Failed to pair: org.bluez.Error.ConnectionAttemptFailed

Failed to pair: org.bluez.Error.ConnectionAttemptFailed. I am trying to connect my bluetooth joystick controller '8bitdo Pro 2' to my RPi4. Below is the error I get. This appears to be the same error ...
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Raspberry Pi 4 autoconnect Bluetooth HC-05

I am currently using raspberry pi 4 in my school project and i would like the Pi autoconnect during startup. However, i failed to do that. i have tried: File rc.local crontab -e My python script can ...
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bluetoothd CPU usage constant at 100 %

I've had this problem for a few months where the Pi 4 gets very hot to the touch, and it invariably turns out that bluetoothd is stuck at 100 % CPU usage, saturating one core. Currently htop tells me ...
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Can I use Rasberry Pi's network by Bluetooth tethering

I saw that it provides the Internet of PC/SMART PHONE to Raspberry through Bluetooth tethering. Could it be the other way around? I want to connect the network connected to the Raspberry Pi via LAN to ...
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Can I use an HM10 connected to a Raspberry Pi Pico to read from a BLE notification?

I have a Raspberry Pi Pico and would like to read BLE notify data from an external sensor should using an HM10. I've seen the HM-10 datasheet and don't see anything there that would be of help. Is it ...
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Automatically accept bluetooth devices

Disclaimer: I am a beginner. I'm trying to setup my pi 1 model b+ as a bluetooth audio reciever i followed the steps on here: https://github.com/nicokaiser/rpi-audio-receiver. running the newest pi os ...
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GPIO only outputs 1.8V when using Bluedot

I have setup a basic circuit to control a relay using a Raspberry Pi 4B. I have tried controlling it with both a push button and the Bluedot app. When implementing with the push button, the GPIO pins ...
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bluetooth pan priorization over 4G in iphone

So, I created a Bluetooth PAN connection between the raspberry and the iphone using the following: How can I set up a bluetooth PAN connection with a Raspberry Pi and an iPod? everything went ok, the ...
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Setup external Bluetooth usb dongle

I want to use an external Bluetooth 5.1 USB adapter on Pi4. The chip on the adapter is Realtek RTL8671b. I googled how to get an external BT work and most of the tutorials suggest disabling the ...
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Let the Raspberry Pi be recognised as USB mouse and forward signals from a bluetooth mouse?

I am not sure whether this is the correct stackexchange section. I would like to find a solution to use a Raspberry Pi Zero 2 W in a chain like this: Bluetooth mouse/trackpad -> Raspberry Pi Zero 2 ...
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How can i switch my Audio Source between bluetooth and a .mp3 file from my directory?

I have plugged a USB-Speaker to my raspberry pi. My goal is, to connect my phone via bluetooth to the raspberry and play a sound on my USB-Speaker over bleutooth. On the other side, I want to be able ...
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mi home bluetooth thermometer 2 how to connect

I bought this device hoping to use it with my hobby project, a programmable home thermostat based on a Raspberry Pi board. Using Python and the BLEAK library, I can find it on a BLE scan quite easily: ...
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Can I disable Bluetooth Bonding on a Raspberry Pi?

Just to get things straight, since the Androids documentation uses these terms interchangeably and makes everything more confusing. Pairing is the exchange of temporary encryption keys, which ...
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Bluetooth serial connection between Pi and MacOS Monterey on M1 Macbook both with builtin bluetooth

How do I connect a Raspberry Pi 4 Model B Rev 1 to an M1 Macbook Pro 16" using rfcomm over a Bluetooth connection? I'm able to connect the devices via Bluetooth but then not over the Bluetooth ...
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How to connect Raspberry PI 3 B to two Bluetooth modules or more using Linux Commands

I'm working on a project; that needs to send data from the two Arduinos using two Bluetooth Module (One using HC-06 and the other using HC-05) to Raspberry PI 3 B; so that the RPi 3 need to connect to ...
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Is there a way to control the 64 bit Raspberry PI OS with an XBox Controller?

With the 32 bit Raspberry Pi OS (32 bit Raspbian), many people recommend using the xboxdrv driver for acting as a mouse substitute to control Raspberry Pi OS. It will map “A” as left click, “B” as ...
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pybluez bad install

Yesterday I installed my Raspberry Pi OS Lite (Debian Bullseye) using Raspberry Pi imager on my Mac. Everything in the most straightforward, up-to-date version. Today I began working with Python. ...
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switch pro controllers bluetooth raspberry pi steam link not working

I have the following setup: 3 switch pro controllers paired with blueman bluetooth Raspberry Pi 4 Model B Rev 1.2 Raspbian GNU/Linux 10 (buster) latest steam link to my windows 10 pc as long as I ...
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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 encounter nethogs in raspi but it only monitors wifi network. I want to know the B/sec of ...
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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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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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67 views

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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