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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1answer
594 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
2k views

USB Bluetooth dongle loses its "PSCAN" state when connected via Bluetooth serial port

I have a CSR 4.0 Bluetooth dongle on my Raspberry Pi. When Raspbian starts, hciconfig shows that the state of hci0 is "UP RUNNING PSCAN". However, every time I connect to the Pi's Bluetooth serial ...
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1answer
590 views

Bluetooth serial failure

I'm trying to connect a BT USB dongle to anything. Once paired, on my Mac (Mac OS X 10.9) I get 'Bluetooth serial failure has occurred. Failed to open RFCOMM serial channel'. It also pairs with my ...
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1answer
2k views

MPD with Bluetooth

Is it possible to run MPD with bluetooth in the Pi? Currently many guides which I have seen are mostly utilizing Upnp/Wifi setup to run. Now this is fine if there was only Apple devices. Since ...
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1answer
868 views

TI sensortag cc2650 connection with Raspberry Pi

I have problem with connection between Rasberry Pi 3 and TI sensortag CC2650. As soon as I power on raspberry, sensortag shuts down, and I can not see him, either from raspberry or from mobile ...
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1answer
27 views

Why does my Bluetooth adapters only allow connection to 5 BLE sensors?

I am trying to connect 7 BLE sensors to my Raspberry Pi using an external bluetooth adapter. However, I can only connect 5 units simoustanely. I have tried with three different bluetooth adapters. Two ...
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2answers
12k views

How to connect a bluetooth device from the command line

I have a headless raspberry pi (it's networked but not plugged into any keyboard or monitor). I've previously used it to play music through a wired speaker plugged into the headphone socket. I was ...
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1answer
4k views

Bluetooth sink has no audio

I found other questions similar to mine but without a working answer. On RPi3 with Raspbian Stretch I'm trying to connect to a Bluetooth speaker. It connects but I have no audio output. pi@rpi(rw):~$ ...
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1answer
2k views

How to set up the Edimax EW-7611ULB combo Bluetooth WIFI dongle

Although, this dongle works (for awhile), there is a problem with the bluetooth driver. After streaming for about an hour, the driver eats up all the Pi memory and the Pi stops responding. Power ...
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1answer
86 views

How do you stream audio from one RPi to another?

I have a RPi Zero W running Stretch and equipped with an Adafruit speaker bonnet. I have followed these instructions including points 1 and 2 mentioned in the comments. The result is a functioning ...
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0answers
37 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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0answers
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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1answer
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
44 views

How Bluedroid can be worked in raspberry pi4B instead of BlueZ

Want to port the bluedroid to raspberry pi4B instead of BlueZ. Because of some causes, only want to use the pi's rootfs, don't use the dbus. how to work it? first of all, as we know,different ...
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1answer
1k views

Rasberry Pi zero and 3 bluetooth transfer speed is slow RFCOMM

I am trying to send a series of bytes from the Raspberry Pi zero W to the Raspberry pi 3 via bluetooth. Im using the PyBluez python package. I believe that Raspberry Pi Zero has Bluetooth 4.1 and ...
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0answers
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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0answers
12 views

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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2answers
1k views

Off grid communication

Over the last couple of weeks, I’ve become interested in off-grid communication, and I am currently looking into creating a simple communication protocol wherein multiple raspberry pi’s are able to ...
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1answer
292 views

Is there a way to connect to a Raspberry server with only bluetooth?

Let's say I installed an API on my raspberry pi (with Php, python, it doesn't matter). Is there a way for my Android phone to make direct requests on my API through Bluetooth ? (If my raspberry and my ...
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1answer
100 views

How can I get the set attribute of each "device" in an array

What I am wondering is how I can loop through paired_devices and get the "name" attribute for each device. This is only a short amount of the code, if more is needed, feel free to comment below. def ...
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1answer
61 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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1answer
2k 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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1answer
159 views

Freeze caused by bluetooth and webcam

My web app has a webcam running using ng-camera(based on webcam.js), and a separate bluetooth sniffer running on node js on the background. After several minutes running, the app and raspberry pi will ...
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1answer
609 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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3answers
118 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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2answers
668 views

Send data to pc over bluetooth or wifi

I am working on a project where i have a motion sensor connected to a arduino connected to a raspberry pi and when the motion sensor detects movement i turn of my Windows pc. I want to connect the ...
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1answer
1k views

Raspberry Pi 3B+ doesnt play audio via BT speaker

so I wanted to play audio via a bluetooth speaker. I tried it with my Phillips BTM3160 and my Creative iRoar Go. The Pi wouldn't even connect to the Phillips one and on the Creative it plays with the ...
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0answers
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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1answer
967 views

Bluetooth Connecting two devices

I am trying to set up bluetooth so that I can play music from both my phone and my computer in alternation (ie, if I want to go in the other room on a call where the phone stops playing, i can switch ...
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1answer
221 views

Can't connect to bluetooth switch

I have a Pi3 running Jessie and I'm trying to connect to this plug, https://www.amazon.com/gp/product/B00PG50OSM/ref=od_aui_detailpages00?ie=UTF8&psc=1. I've been able to pair and trust the device,...
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1answer
338 views

Problem installing Bluetooth Dongle on Raspberry Pi 3 running Windows 10 IOT Core

I recently bought the plugable Bluetooth USB adapter usb-bt4le and I want to use it with my RPi3. I have windows 10 core IoT installed on the RPi. I have disabled the on-board bluetooth and I wish to ...
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1answer
153 views

No audio from HDMI, Bluetooth, or Jack port (Raspberry Pi 4B)

new user here. Finally got around to using my raspberry pi 4B this week and I'm having troubles getting audio from all 3 methods mentioned in the title. I've researched here and there for hours about ...
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2answers
229 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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2answers
94 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
219 views

Not able to pair Raspberry Pi3 and iBeacon using Bluetooth

In my current project, I am working with iBeacon in the area of IoT. Basically iBeacon works on Bluetooth wireless technology. I am using Raspberry Pi 3 (with in-built WiFi and Bluetooth). Pi 3 ...
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0answers
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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0answers
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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0answers
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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2answers
2k views

play audio stream when bluetooth connects

I have a Raspberry Pi Zero W and want it to use as an Internet Radio. So I wrote a Python script that connects to my bluetooth speaker and starts a stream. Everything works fine, but i always need to ...
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3answers
5k views

Bluetooth status: inactive (dead)

I have uninstalled BlueZ from my raspberry pi. sudo apt-get --purge remove bluez Then, I reinstalled it using this tutorial: wget http://www.kernel.org/pub/linux/bluetooth/bluez-5.47.tar.xz tar -xvf ...
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1answer
55 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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1answer
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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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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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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2answers
1k views

Airplay plus Bluetooth Speaker

I would like to develop a Raspberry PI "music receiver" that would play Airplay audio by default, but if a Bluetooth audio source connected to it - it would use that as the audio source instead of ...
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1answer
1k views

/tmp has been reported to be read-only filesystem

Environment: Up to dated rasbian. pi@raspberrypi:/etc $ cat os-release PRETTY_NAME="Raspbian GNU/Linux 9 (stretch)" NAME="Raspbian GNU/Linux" VERSION_ID="9" VERSION=&...
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1answer
940 views

Bluetoothctl connect TIMEOUT exception

This is the error I am getting when I connect to my mobile phone using the connect method in this documentation: https://gist.github.com/egorf/66d88056a9d703928f93, raise TIMEOUT(msg) pexpect....
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2answers
3k views

BLE + RPi 3 + Node.Js

I am currently developing an application where I connect from an Android/iOS app to the Raspberry Pi 3 via Bluetooth/BLE. Once paired, the RPi will send temperature measurements to the mobile app. I ...
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1answer
2k views

cheap temperature sensors with bluetooth

I have a PI and I need to develop an application to sense between 8 to 16 temperature sensors. BMP180 and a multiplexer have been a PITA and I havent been able to make it work. Is there any other way ...
2
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1answer
3k views

Playing audio via bluetooth speaker for Pi3 (Stretch)

This is the oft repeated question on playing audio via bluetooth on RPi. There are too many posts out there, but most of them are dated or do not apply to the stretch version of raspbian and hence ...

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