Raspberry Pi

Questions tagged [bluez]

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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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13 views

RPi3 Bluetooth Tethering Setup

I'm trying to setup automatic Bluetooth Tethering without a GUI, and I can't find anything that works online. A lot of forums just end at the mention of "Blueman." The only way I could even find to ...
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83 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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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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66 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
296 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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34 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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1answer
54 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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103 views

Sox error: ALSA lib bluealsa-pcm.c:200:(io_thread) PCM FIFO write error: Broken pipe

I'm trying to use my Raspberry Pi as a white noise generator using SOX and my bluetooth speaker (BOSE mini soundlink II). Everything works great at first, however after a certain period of time (as ...
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2answers
388 views

Raspberry Pi 3B+ BLE peripheral : Android can't retrieve services list, OK with iPhone and Win10

I try to make a Raspberry Pi 3B+ act as a BLE peripheral. I downloaded latest version (5.50) of bluez stack here : https://git.kernel.org/pub/scm/bluetooth/bluez.git. I execute provided examples in /...
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1answer
371 views

bluez - failure to pair bluetooth remote

I'm trying to pair my PS3 remote with my RPi 3, through bluetoothctl. The steps I'm attempting: place the remote in pair mode run bluetoothctl [bluetooth]# devices Device 00:19:C1:5A:24:7B BD Remote ...
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60 views

Bluez Android/iOS control

Hey guys I created bluetooth speaker from my Pi Zero W. Everything works as I want. I implemented my own absolute volume control using d-bus which work as needed. Connection from Iphone work perfectly ...
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303 views

Develop a communicattion between a Raspberry with BLE server and a Raspberry with BLE client

I have been developing an small project which requieres a communication between two Raspberries, the first one acts as a Beacon and the second one tries to connect to that beacon and obtain the RSSI ...
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1answer
2k views

Rpi Bluetooth Android Device Connection Pairing Problem

I'm trying to connect my rpi0 w to any android device via Bluetooth LE(low energy) , i can pair but i can't connect them ,an error always showed (Connection failed,No usable services on this device ) ...
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148 views

Rpi Zero W - How to automatically accept bluetooth pairing and log mac and info request?

I am using Raspbian Stretch 9.4 on a Zero W. The goal is to deploy it headless for long periods of time where it will broadcast a specified bluetooth signal. When someone tries to connect to it, it ...
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232 views

BLE Connect fails with page timeout

I've got a custom BLE 4.1 device and I'm trying to connect it to Raspberry PI 3 B+ using hcitool, gatttool, bluetoothctl, ..., without success. The device is an NRF BLE chip with the Nordic UART ...
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1answer
203 views

Bluetooth Blues

I've discovered again that cursing and swearing at inanimate objects doesn't actually improve things, so I'll try posting a question. A couple of months ago I attempted a fairly ambitious project (...
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338 views

hcitool does not find devices despite GUI showing multiple

I'm trying to better understand C (and bluetooth) using a Raspberry Pi 3 b+ as the testing grounds. I started by writing a C program that uses BlueZ to scan for bluetooth devices (script pretty common ...
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124 views

Python Bluetooth connection automatically

Is there any way to connect Bluetooth device automatically without manually entering the passkey and automatically trusting the device?
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1answer
276 views

Connecting a new Bluetooth device without monitor?

We are trying to connect a Bluetooth device without a passkey and trusting default yes in Python. I am running a headless Raspberry PI 3, and I want it to automatically accept pairings from any ...
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63 views

How do i turn my raspberry pi to a BLE peripherial to connect with an iOS device and query it for data

I have installed the latest of bluez (bluez-5.50), tried different suggestions from folks and nothing works, I can't find my raspberry pi on my IOS device using different BLE scanner apps. Can someone ...
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673 views

Pi zero as bluetooth keyboard?

I am attempting to use a Pi as a bluetooth keyboard. There are several guides I have found for this, such as this on from impythonist. However, they seem to be outdated, and so far as I can tell ...
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34 views

RPi 3B+ won't discover PC on bluetooth

I am trying to connect my Windows 10 PC and RPi via Bluetooth, but my RPi doesn't show my PC as an available device. My PC also does not show my RPi as available. It is weird because my phone can ...
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1answer
201 views

Pulseaudio module-combine-sink always throws Failure

I am new to pulseaudio. As per my requirement, I need my audio output to be routed to either connected speaker, bluetooth speaker, or both. I am able to play the media file on speaker, or bluetooth ...
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1answer
7k views

How to stream sound to a bluetooth device from a raspberry pi zero

I have a raspberry pi zero W and I would like to stream sound over bluetooth to a bluetooth-enabled speaker / headphone. So how to achieve this with alsa?