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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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11 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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20 views

How to make more efficient reading of GPIO

My (python) program (on Raspberry Pi zero W) turns on/off a GPIO pin (connected to a relay module) depending on the RSSI signal of my phone (connected via bluetooth) and the status of one more GPIO ...
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21 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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1answer
62 views

How to use serial and bluetooth at the same time

I'm working on a drone project using a mobile phone do send pitch/roll/throttle and yaw to a Rpi 4 2GB over bluetooth. This is no problem. But, then I want to send these values to the ...
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2answers
23 views

How can I connect 2+ Rpis outside of a wireless net

I’m building an AI powered robotic car which needs multiple Pi, one driving, one sensing, one learning etc. The individual boards need to talk to each other, most likely using MQTT, outside of a ...
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15 views

Connect mobile phone/app to Pi Zero W via Bluetooth

Is there any easy way to connect my android (later ios too) device to my pi zero w via Bluetooth? I'm looking for a way to send data to my mobile phone without using Wifi. edit: I want to write an ...
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40 views

Connect Bluetooth Mouse automatically

My Raspberry Pi works well and I can connect my bluetooth mouse without any problems BUT when the Pi is restarted the mouse has to be reconneted. The mouse is there under bluetooth but needs to ...
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17 views

Pairing Rpi and windows PC for bluetooth over serial

I am currently working rpi 3B+ and windows system. thing is I want to use bluetooth over serial to windows PC. Before that happens RPI and Windows must be paired first, that is not happening at the ...
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1answer
33 views

Raspberry discoverable and pairable without pin keep disconnecting

I want to send bytes to my raspberry pi 3 through bluetooth with an application on my smartphone. Bluetoothctl works fine, pairable, discoverable, agent NoInputNoOutput all work. However, my phone ...
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1answer
48 views

Is it possible to log any discoverable Bluetooth/BLE via headless pi?

Has anyone built a bluetooth/BLE sniffer that runs headless and logs MAC addresses of all discoverable BT/BLE devices? What resources did you use? I've found a tutorial on Adafruit, https://learn....
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2answers
52 views

Setting up a shell script to run at boot with sudo permission

I had issue with BLE Connection which would drop after certain time which I solved using solution from this post: https://unix.stackexchange.com/questions/288978/how-to-configure-a-connection-...
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20 views

Bluetooth not founded - Raspberry Pi 3 B + connection with IoS devices

What is the procedure to enable Raspberry Pi 3 B+ for send and receive data with IoS Devices? I developed an application, that enables the raspberry bluetooth to receive network configurations and ...
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1answer
145 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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25 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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89 views

Will the RPi-4 work with a Logitech K830 keyboard?

Ideally in Bluetooth mode? But at least in wireless mode with a dongle. Pi runs Raspbian & connects to family TV & is wirelessly connected to home network. Therefore, is ideal to have a back-...
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57 views

How to make wireless or bluetooth microphone work on raspberry 4

I'm running raspbian-buster on raspberry 4. I need to make wireless or Bluetooth microphone work. It's a production base project. I've tried with common headset which used for cellphones.But it's ...
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1answer
147 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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37 views

connecting raspberry pi to android tablet over bluetooth

I am familiar with this and this. I am trying to send a message from raspberry pi terminal to an android app. I am on Raspbian Stretch headless (NO gui) Now, I am doing : sudo bluetoothctl power ...
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1answer
80 views

Is it possible to configure a Raspberry Pi 3 to become a Bluetooth adapter for a desktop PC?

Stupid question, but I've been looking everywhere. I want to configure my Raspberry Pi 3 so that it can basically serve as a bluetooth adapter for my desktop pc. Is this possible, or does it only work ...
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2answers
62 views

PI Zero W Bluetooth Device not recognised yocto poky

I have built an yocto poky image with bitbake and it doesn't seem to recognise the bluetooth device/controller. I have seen this issue and doesn't help. My local.conf has extra for distro features ...
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28 views

Share Internet with a Pi Zero over Bluetooth?

How do I share my Macbook's Internet connectivity with a Raspberry Pi Zero over a Bluetooth PAN? I am able to SSH into my RPi Zero via Bluetooth on pan0 interface, so the Bluetooth connection works. ...
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1answer
112 views

Can Raspberry Pi use ANT+ as well as Bluetooth?

Since ANT+ and Bluetooth/BLE all use 2.4 GHz radio-waves, and most Raspberry Pi models can use Bluetooth, is it possible to communicate through the ANT+ protocol from a Raspberry Pi without adding any ...
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29 views

MFRC522 and Bluetooth not work together

I have a program in which I use pyqt5, MFRC522 and bluetooth. I have 3 threads, one for the interface, one for the MFRC522 and one for the bluetooth. If I run the MFRC522 and the bluetooth separately ...
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0answers
32 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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28 views

Is there a relatively cheap accelerometer that I can wirelessly connect to a raspberry pi 3

I’m interested in building a wristband that turns on a light when the wearer of the wristband makes a sharp movement. I am thinking of connecting a wireless accelerometer to a raspberry pi 3 that I ...
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1answer
47 views

obexd - Receive files error

I am facing the below error while trying to receive files via bluetooth. The pairing is successful and sending files from the board to the phone is also successful. But receiving files from phone to ...
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0answers
40 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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0answers
33 views

How to trigger iOS/Android Camera through Raspberry Pi Bluetooth?

For my current project I want to connect a raspberry pi to an android/iOS phone and trigger the camera without any additional app on the phone. I know that this is theoretical possible, as there are ...
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0answers
27 views

Send command (start/stop) wirelessly to a DC motor from raspberry pi3

I know we can connect a dc motor with GPIO pins and star/stop/control speed etc. of it. Is there any way to control that motor wirelessly(over wifi/bluetooth) from raspberry pi? Raspberry pi in one ...
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0answers
103 views

Two Bluetooth headphones connected to the RPi 4 B at the same time?

Has anybody successfully connected two Bluetooth headphones to the RPi 4 at the same time? What profiles does it support?
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1answer
147 views

Wifi Speakers like bluetooth speakers using raspberry pi 3b+

So basically I was able to use my raspberry pi as a bluetooth audio out device that is, connecting a speaker via audio jack I'm able to make it a Bluetooth speaker. I'm wondering if there's a specific ...
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0answers
196 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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38 views

Can the Raspberry Pi Zero W receive data from multiple Bluetooth Low Energy peripherals simultaneously?

Does the Bluetooth radio on the Raspberry Pi Zero W v1.3 allow it to receive data from multiple Bluetooth Low Energy peripherals simultaneously?
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274 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 ...
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1answer
41 views

Using RPi Zero W as Bluetooth smart device

I'm trying to setup my RPi Zero W as a Terrarium Controller and I want to be able to create an Android app to control the settings and and such over Bluetooth. I've found tons of tutorials on setting ...
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0answers
41 views

Internet Through USB

Is it possible to get an internet connection for a Rasberry pi zero from a USB connected to a Win 10 pc? or is it possible to connect to a Bluetooth wifi Hotspot without an OS on a Rasberry Pi Zero?
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2answers
36 views

How to enable BlueTooth when TX/RX already being used

We have the TX/RX Gpio already being used on the Raspberry Pi 3B+ . I believe the onboard Bluetooth uses the same ? How can I get bluetooth working when our TX/RX is already being used. Right now I'...
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147 views

Sudden influx of “frame reassembly failed” messages after Raspbian update

Problem Looking in /var/log/syslog, I see a lot of messages like this: Bluetooth: hci0: Frame reassembly failed (-84) Here's a recent segment from the logs: Jul 9 02:23:34 apple-pi kernel: [ 3268....
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1answer
35 views

How to get song information using PulseAudio?

I want to have a script that is continuously running in the background while I connect my phone via Bluetooth to play music. I need the script to get the total time length of the track, the current ...
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0answers
128 views

Integrated Bluetooth on my RPi 3 is not working!

So, basically I am connecting a Bluetooth earpiece to my RPi 3.B The problem started when I typed the following in the terminal sudo bluetoothctl the following output came ""Waiting to connect to ...
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2answers
99 views

Is there a way to see if bluetooth scanning/advertising are running?

I have made a python script based on this github in order to use ble scanning/advertising. This script will run a long time and the Bluetooth thread might have a problem which caused them to stop. I ...
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0answers
21 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
64 views

Is it possible to bluetooth packet using onboard in Raspberry Pi?

I'm trying to sniff bluetooth packet of nearby smartphone. There are plenty of guides, but they just show the number of bluetooth devices like this: Scanning for BLE devices (5s) ... Found 2 BLE ...
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0answers
36 views

Maximizing the number of active BLE/Bluetooth connections

I would like to connect around 30 smartphones via BLE to a Raspberry PI enabled system, however, googling around showed that it supports up to 5-7 active connections only. It is expected these 30 ...
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0answers
38 views

Bluetooth connection between Raspberry pi and BT speaker falls

I have Raspberry pi 3B+ and bluetooth speaker Beats Pill+. Using alsa I am transferring audio from rpi to speaker. It works well but after few minutes bluetooth connection falls down. Using dmesg logs ...
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1answer
173 views

Bluetooth discoverable mode is automatically turned OFF

I want to set up the Bluetooth on boot so I can connect to it whenever I want with a device which is not trusted by the Raspberry Pi Bluetooth. I set up the Bluetooth on boot on my Raspberry Pi this ...
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1answer
201 views

Mini UART Bluetooth PAN on Pi Zero W

I followed these instructions to enable a Bluetooth PAN on my Raspberry Pi Zero W. It mostly works fine, but it occupies a serial port. I need UART (mounted at /dev/ttyAMA0) for serial communications, ...
2
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2answers
103 views

Raspberry pi 3B+ and Beats Pill+ bluetooth speaker

I have Raspberry pi 3B+ and bluetooth speaker Beats Pill+. I am trying to forward all audio to this speaker and use it as default. Bluetooth connection between rpi and speaker is not a problem, using ...
2
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0answers
74 views

Configure AlexaPi to use bluetooth speaker connected to my Raspberry Pi 3B+

I am trying to clone Alexa on my RaspberryPi 3B+. Following are the links which I am following. https://github.com/alexa-pi/AlexaPi https://github.com/alexa-pi/AlexaPi/wiki/Installation I have done ...
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0answers
14 views

Displaying specific information from Raspberry Pi to a bluetooth display

I have a project on Raspberry Pi and I want to display angle variation recorded from sensors connected to RPi but the display must be connected via Bluetooth. Is this possible?