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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12 views

Not getting an “Enter Pin” prompt when pairing with BLE device

I have a custom board that uses BLE to get Wifi credentials. I'm trying to pair with the board using my Pi. I'm using bluetoothctl. Here's what I get when I try to pair: [bluetooth]# agent on Agent is ...
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25 views

Best way to expose a web interface without connecting to a Wifi

I've multiple small projects on raspberry pi zero w in mind. They are all some 3D printed part that will have some led, sensors, ... Usually, they will work independently, and some of them will be ...
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8 views

Pi4, Enhance BLE channel hopping

As the Cypress chip on RPi4 is handling Wifi and BLE, it can be useful if it would share Wifi channel information prior BLE connection. In BLE connection request RPi sends out the allowed BLE channels ...
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5 views

Pi4, BlueZ Limit channels

(How) is it possible to limit the usable channels for bt connections? I.e I want to connect to a device with gatttool. As gatttool does not have any of this low-level setting., can I somehow limit the ...
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1answer
15 views

Installing Gattlib error

Like many others, I've had problems installing gattlib using pip. I've followed the steps outline in this question to no avail: Pybluez and Gattlib error The steps that give me the error: hg clone ...
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33 views

Bluetooth speaker connected but no audio, AV earphone no audio (only VLC is good), HDMI working propedly

My Bluetooth speaker device (JBL Charge 4) connected, but no audio. The /etc/dbus-1/system.d/bluetooth.conf edited. I change the "default" context policy from "deny" to "allow&...
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1answer
27 views

Disallow multiple bluetooth connections

I recently created a Raspberry Bluetooth music player with MQTT control, and discovered that, Raspberry allows multiple users to connect at the same time, and plays up to 3 people's music (which is ...
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13 views

How do I fix my crashed bluetooth? [duplicate]

After an apt update today, my bluetooth menu disappeared from the menu bar. Even the services are not running anymore. Whenever I am trying to fix something(with systemctl and apt), this message ...
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22 views

BLE data receive and send from arduino HC08 to raspberry pi

I have noticed that there are lots of topics about classic BT connect to arduino and send data to raspberry pi by creating virtual port (using rfcomm) I have tried this method for BLE Device. However ...
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1answer
17 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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22 views

Raspberry Pi as a bluetooth receiver and transmitter

I'm brand new to Raspberry Pi. I have a laptop and phone - both with spotify and media monkey. I have a set of bluetooth headphones and a bluetooth speaker. What I'd like to do is have a Raspberry ...
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22 views

Connect and use Bluetooth headset

I am on a Raspberry Pi 2 Model B with Raspbian buster and have issues using my Bluetooth headset. I tried to use some of the several available HowTos. Best working for me are the HowTos using bluealsa....
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31 views

BluetoothError: (111, 'Connection refused')

I'm trying to connect raspberry pi 4 to my ubuntu laptop. I setup a rfcomm server on my laptop, the code is given below: import bluetooth server_sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM) ...
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12 views

Raspberry Pi 3 : how to find device number and card number with bluetooth

I'm trying to set up google assistant on my raspberry pi with this guide: https://pimylifeup.com/raspberry-pi-google-assistant/comment-page-2/?unapproved=27549&moderation-hash=...
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40 views

Playing audio on Bluetooth speaker using pygame

I know there are already posts related to this question, but there aren't any I can find that have worked for me. I am attempting to get an iHome B66 Bluetooth speaker to play sound coming from my ...
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24 views

How to bind raspberry pi bluetooth com ports to a /dev/rfcomm or /dev/ttry device

I have bluetooth device which on windows has 2 com ports com3 amd com4 I found the device using bluetoothctl agent on scan on pair ##:##:##:##:##:## rfcomm bind /dev/rfcomm0 00:16:A6:00:06:E6 ...
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7 views

dbus and qdbus not working suddenly

I am using dbus and qdbus to control my phone from a pi using Bluetooth to pause play etc. songs and all of a sudden dbus and qdbus dont work anymore All other functions work i can head music from he ...
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How to set up /etc/asound.conf for both bluetooth and soundcard on Rpi3

I can get sound to bt or soundcard, but how to set up for both?? this in /etc/asound.conf give bt pcm.!default { type plug slave.pcm { type bluealsa device "91:AD:70:FD:8D:3C" profile "a2dp" } } ctl....
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20 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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48 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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21 views

Serial communication with arduino over bluetooth

I am using rfcomm to connect to an Arduino nano (HC-06 bluetooth module) from my RPI 4B+. It works flawlessly and the two devices are able to communicate with no issues. I need to be able to connect ...
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1answer
94 views

RPI4 bluetooth device paired and connected and set to audio sink but wont play a sound

I saw one post with a similar title but the solution program featured did not really answer the question nor work for my case. I am paired and I have my output set to the blue tooth speaker and ...
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1answer
49 views

Wifi, BT on RPi4

Question is very straightforward: Who is the manufacturer of the onboard Wifi of RPi4? All datasheet and specs only shows: 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE I'm ...
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43 views

How to stream audio via bluetooth to an airplay speaker?

I am trying to send audio using bluetooth to my raspberry pi which then should forward the music to an airplay speaker (in my case a HomePod). The first step of sending music to the pi is ...
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19 views

Raspberry Pi Bluetooth HCI Event Code Meaning

I am recently playing with Bluetooth on my Raspberry Pi. I understand the code such as: sudo hcitool -i hci0 cmd 0x08 0x0008 1e 02 01 1a 1a ff 4c 00 02 15 e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 ...
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56 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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2answers
51 views

Bluetooth audio not working from webserver

I created my local website for a magic mirror project. This project includes my google calendar, weather ifo, timers, internet radio, ... For the timers and internet radio I would like to hear the ...
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1answer
36 views

Connecting bluetooth keyboard automatically at boot

I made a raspberry pi robot that you can control with the keyboard and I want to use my bluetooth keyboard with it. The python program automaticley starts. I used /etc/rc.local to do this. #!/bin/sh ...
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26 views

How can I communicate from the terminal on the RP over Bluetooth with my Android device?

I am trying to launch an app on my Android device over Bluetooth when my ultrasonic sensor is triggered on my Raspberry Pi. I have installed a terminal emulator on my Android device and am ...
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1answer
52 views

Connecting a phone microphone to Raspberry Pi using Bluetooth

I own a Raspberry Pi 4B model and I want to record my voice with the Raspberry Pi. Since I don’t have a Bluetooth microphone or headset (with microphone incorporated), I want to connect my Samsung ...
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1answer
17 views

Using Serial and Bluetooth device (external device) same time especially for using external BT dongle

I want to use Serial and BT same time on RPi 4B (Python) I thought I cannot use it so I attached usb blutooth dongle (CSR4.0?) on it. But I only can find references on the net using default BT when I ...
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24 views

Connect nrf52 Board to Raspberry Pi(as gateway) and create mesh network using other raspberry pis(as nodes),nrf52 dk will be mediator between Pis

I am making mesh network using Raspberry pi and NRF52 DK. I install bluez 5 and meshctl on raspberry pi. I successfully connected nrf52 dk using bluetooth. I attached screen shot. Now, I want to ...
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1answer
28 views

Bluetooth sound off

after upgrading to debian 10, have encountered problems with the sound transmitted to my bluetooth headphones. The pairing between the RPI and the headphones is done, once from the audio menu I ...
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39 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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69 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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1answer
76 views

Bluetooth cannot be started

Using Raspbian Lite on my RaspberryPi 4. Havent been able to get the Bluetooth working. I tried $ sudo systemctl start bluetooth but $ systemctl status bluetooth ● bluetooth.service - Bluetooth ...
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65 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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1answer
34 views

How to connect an Raspberry pi to an android phone via bluetooth?

I am working on a project in which I'm supposed to take some readings from sensors, then do some analysis on them and output a result. I want to display this result on my android phone. How would I go ...
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26 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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54 views

How to restart/release rfcomm for bluetooth communication?

I am trying to connect raspberry pi to my galaxy note to use it for serial communication. I have somewhat succeeded at that. First I paired it and trusted through bluetoothctl. Then I run sudo rfcomm ...
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17 views

Only one application can output audio to bluetooth speaker at a time

I have a rpi 3b+ running on the latest Raspbian Stretch with desktop (2019 April 09), I updated/upgraded all packages to newest version, everything related to bluetooth & audio is kept default. I ...
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12 views

How to set up bluetooth broadcasting on a pi 3 b v1.2

um new to working with bluetooth on linux or on a raspberry pi but i have managed to set up the controllers. What i want to accomplish now is using python to connect or broadcast my raspberry pi as a ...
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68 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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30 views

Adding Flags to BLE HID Advertisement using bluez Raspberry Pi 3 Model B+

I'm trying to mock a BLE connection between and Android phone and a HID BLE mouse by using bluez 5.50 on a Raspberry Pi 3 Model B+ to create a mock HID BLE mouse. I've managed to advertise the device ...
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1answer
36 views

Connecting to TE M5600 bluetooth 4.0 pressure sensor

A similar question has been asked before , but I'm unsure how to add a follow up question .... Essentially, I want to connect one of these M5600 sensors to a RPI to use with a python script of ...
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23 views

HSP not displaying on Bluetooth Control When added in sdptools

I am currently configuring my raspberry PI to act as a bluetooth headset. I have been following this tutorial https://scribles.net/enabling-hands-free-profile-on-raspberry-pi-raspbian-stretch-by-using-...
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92 views

bluetoothd: Failed to obtain handles for “Service Changed” characteristic

I can't manage to make my Pi 3 bluetooth working. As you can see I updated the /etc/systemd/system/bluetooth.target.wants/bluetooth.service file. But it doesn't seem to make the service working. $ ...
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1answer
46 views

Terrible sound quality when recording over bluetooth

I have paired a Jabra Talk 15 headset with a Raspberry Pi 3B (and PulseAudio). I can play sound through the headset well. When I record using arecord though, I get almost completely garbled audio. ...
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23 views

Connect Ípega to retropie via Bluetooth

I am trying to configure a Raspberry pi 3 with retropie. The base config is ok, and the emulators are working fine with USB controller (Dualshock 4). Now I want to connect a Bluetooth Joypad made for ...
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0answers
41 views

help getting ble-mesh (bluetooth mesh) working

I was hoping to get some help. I have been working on getting bluetooth mesh working on my raspberry pi 4 for a few days and feel I am hitting a brick wall. I am referring to this pdf that was ...

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