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

Pi 4, Bluetooth 5, Long-Range mode

I'm playing about with flic buttons and the flicd service and only getting about 10m range indoors at the moment. Although Bluetooth 5 has the Coded PHY mode for long-range, I've read that the pi4 (or ...
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1answer
33 views

Raspberry pi 3B+ bluetooth yes/no

I hope someone can help me with this, as it's driving me crazy! I have connected mmy wife's and my mobile/cell phone via bluetooth to the rpi. So far so good. However, when I run bluetoothctl I notice ...
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31 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.
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24 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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8 views

How to list only valid bluetooth devices?

I have setup a Pi4 using PyBluez to create a Bluetooth server. The client is on an Android phone using Android Studio. So far it is working the way I need to except that I wish to automate the first ...
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23 views

How to fix possible dbus permissions problem on bluetooth connect?

I'm trying to connect my Sony DS4 Controller to my RPi4 over Bluetooth. It has worked before and I have my BT headphones working, but the controller now really don't want to Connect. I have ...
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88 views

Cannot Pair Xbox Series X Controller via Bluetooth

I'm trying to pair an Xbox Series X controller to my Raspberry Pi 4B, but I've had no luck despite following all online instructions. I've disabled ERTM by running echo 'options bluetooth disable_ertm=...
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37 views

Use RPi3 to read sensor data from Arduino Uno with HM-10 bluetooth module

I want to use Rpi3 and bluepy read sensor data from Arduino Uno with HM-10. I write program like this : import bluepy.btle as btle p = btle.Peripheral("D8:A9:8B:7C:01:EB") while True: # ...
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29 views

Sound playback trough bluealsa-aplay not working as a service

I am trying to manually setup my raspberry pi 4 as a Bluetooth audio receiver, but there is no sound playback when I start the bluealsa-aplay service I created. It only works when I run the bluealsa-...
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1answer
27 views

How much is ble Tx power of RPI zero WH

I'm planning to estimate distances between some RPI ZERO WH using bluetooth. I'd like to know Tx power of BLE of RPI ZERO WH to measure distance.
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23 views

BlueZ 5.58 Connection Fail

I am working on the BlueZ 5.58 library using the Raspberry Pi 4. So far, I am able to install an updated version of the BlueZ 5.58 & making sample test cases. (refrance BLE GATT Server) While ...
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17 views

BlueZ 5.58 Authentication using Public & Private key

I am working on the BlueZ 5.58 library using the Raspberry Pi 4 module on Raspbian OS. I have found that the agent.py application has implemented the public-private key & fixed key authentication. ...
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119 views

Using a USB Bluetooth dongle on Pi 4

I recently purchased the Techkey Bluetooth dongle since I know the Pi system is unable to connect to multiple Bluetooth devices simultaneously. Unfortunately, I haven't had any luck doing so. I got ...
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138 views

How to make sure BlueZ NoInputNoOutput agent does not ask for user authorization?

I am trying to pair my custom made BLE device with a Raspberry Pi 4, using the bluepy library, programmatically. I do not want to press "accept" or type "yes" whenever I try to ...
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81 views

Audio alternatives for Raspberry Pi 400

So as you all know, the Raspberry Pi 400 does NOT have an audio jack, which is pretty annoying especially when I need to get audio output from it. Can I connect to a Raspberry Pi 3B via Bluetooth from ...
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1answer
39 views

Can I connect over 15 Bluetooth devices with raspberry Pi 4B 4GB ram using usb Bluetooth apapters

I have a raspberry Pi 4B 4GB ram and I want to connect it to 16 Bluetooth oximeters(BLE) and take readings after every 20 secs. Now I know that pi can connect to only 7-8 Bluetooth devices at a time ...
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2answers
83 views

bluetooth is not working after updation

am using pi 4 8GB for last 6 months everything was going well. Last week i updated my OS(raspbian). After that bluetooth is not working properly. i can able to pair a device successfully, but am not ...
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38 views

Raspberrypi4B: Unable to establish a BLE connection between RPi4B and Ubuntu Laptop

I am unable to establish an ble connection between my Raspberrypi4B and Laptop. Configuration is as below: Laptop: Ubuntu-20.04.2 LTS, bluez version: 5.53 Raspberrypi4B: Ubuntu-21.04 bluez version: 5....
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25 views

Raspberry pi4 + Lineage OS + bluetooth headset Dont work

hello im having some problem to use a headset bluetooth on a raspberry. in you tube i can hear the sound perfectly but in Linphone ( a softphone app or any other softphone ) i can hear and talk ...
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12 views

Raspberry pi with Android lineageOS 17 external bluetooth dongle

I have a raspberry pi3 with a android lineageOS 17 instaled. but in my raspberry my bluetooth is not working. I bought a bluetooth dongle usb to pair my bluetooth headset but it dont recognize the ...
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43 views

RPI-4 Bluetooth board does not find iOS devices

On a brand new RPI-4, I cannot find apple iphones neither using module bluetooth nor bluez package. I tried to scan for BLE devices and all the command line tools such as bluetoothctl and hciconfig to ...
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53 views

Cannot find any devices when using BlueZ as bluetooth mesh provisioner

I am currently trying to setup a bluetooth mesh network using 5 raspberry pi 4's using BlueZ's solution to do. After having setup the device to act as a provisioner I have issues when trying to scan ...
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74 views

Raspberry Pi 4B: Cannot pair any bluetooth devices

I have just installed the current release of TwisterOS (2.0.1) together with the packages (bluez blueman pi-bluetooth and bluetooth) on my brand new Raspberry Pi 4B. Even though scanning works just ...
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37 views

Raspberry Pi 4 not detecting Wireless headphones

Raspberry Pi 4 is not detecting my realme Buds Wireless Pro headphones I tried trouble shooting the issue by referring the following : https://peppe8o.com/fixed-connect-bluetooth-headphones-with-your-...
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1answer
169 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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130 views

Interpreting errors in bluetoothctl service

I have a retropie on Raspberry Pi 4 that doesn't seem to connect to my Xbox one controller. Checking sudo systemctl status bluetooth.service yields bluetooth.service - Bluetooth service ...
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1answer
87 views

Vlc only outputs audio to bluetooth

I've got a weird problem right now. I updated everything a couple of weeks ago (sudo apt update, upgrade etc.) and after that I had issues with the sound output to my tv via hdmi. I managed to fix it ...
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16 views

Sound settings seem to be fine but don't hear anything

I've got the RPI4 Model B. A while ago I had it connected trough Bluetooth with a simple JBL speaker. It worked and I could hear the sound that was coming from the Pi. Recently, I moved the Pi and ...
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105 views

Bluetooth device connection lost after a second

With the Raspberry Pi 3B i was able to succesfully pair and connect a Barcodescanner (OPN2006). For this, I used the following code: pi@raspberrypi:~ $ bluetoothctl Agent registered [bluetooth]# power ...
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16 views

Is it possible to configure a Raspberry Pi 4 to become a Bluetooth adapter for a desktop PC?

My PC Doesn't have bluetooth, so I wold like to use my Raspberry pi 4 as a bridge between my switch pro controller and my desktop PC. I've read that i'ts possible to connect the controller to the ...
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1answer
56 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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1answer
62 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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33 views

How to apply authentication pin while making BLE connection using Bluez5.60

I'm trying to connect my Raspberry Pi 3B+ over BLE GATT Server using the Bluez5.6 library. I have successfully tested the BLE server application. Able to connect & communicate over the GATT ...
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97 views

Getting iPhone bluetooth to pair with a raspberry pi to serve as 4G hotspot

I'm trying to figure out a way to pair an iPhone to a Raspberry Pi 4 (with a PIN ideally, but without is okay). Once paired, I'm going to set up the iPhone as a hotspot. All user interaction has to be ...
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15 views

Startup Bluetooth connection not working when monitor is not connected

I want to achieve a project that could capture images and transfer them to my Android phone via Bluetooth when powering on the Rpi. I achieved this by running a customized python program. Now I am ...
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54 views

Bluetooth Troubleshooting Pi 4

Raspberry pi 4 running Picroft image. Trying to set up the pi as a bluetooth sink receiver as per https://github.com/nicokaiser/rpi-audio-receiver When I try to connect, I see on my phone: "...
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3answers
2k views

Raspberry Pi 4 won't pair to bluetooth devices

I have a raspberry pi 4 that I plan to use as a media center, and I want to pair a controller to it. However, using bluetoothctl to pair a controller results in the controller briefly pairing and then ...
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1answer
81 views

Raspberry Pi bluetooth not detected by any device and also not detecting any devices around it. Details below

I am using the latest version of Raspberry Pi (Buster) on a Raspberry Pi 4,2Gb model. After a fresh flash and boot up, I clicked on the raspberry pi default Bluetooth > clicked "make ...
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83 views

Connect Raspberry PI to smartphone via bluetooth tethering (PAN)

Good evening everyone. I turn on the "bluetooth modem" on my phone, aka bluetooth tethering. And I want my "raspberry pi zero w" to automatically connect to the phone and use the ...
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2answers
32 views

How to make RPI run script without WIFI

I have a RPI with a python script on it that makes the camera record every time you hit enter, and I would like to connect to the pi from my phone or laptop via Bluetooth or another way so I can run ...
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25 views

Raspberry Pi 4 B audio stream from phone clipping with multiple devices

Tl;Dr Multiple bluetooth devices throttle bl-data causing audio skipping. Can external bl-dongle be set up to be used in one application and integrated module in other? I'm trying to setup Raspberry ...
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3answers
500 views

Bluetooth device connection problem on RPi4 with buster

##### PROBLEM ################################# I have a bluetooth device that was connecting fine with RPi4 with buster after the GUI has loaded but I am now having problems with the connection after ...
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46 views

Wireless button to trigger py script on raspberry pi

I'm looking for ideas and products that would enable me to run this setup with a raspberry pi: I'm looking for a wireless wifi or bluetooth button that can be paired or connected to a raspberry pi on ...
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0answers
55 views

Stream Xbox audio to raspberry pi via Xbox Wireless

Is it possible to transfer Xbox Audio to raspberry pi via Xbox Wireless protocol? i.e. using raspberry pi as a Xbox controller. I need to record in-game chat voice conversations, because for some ...
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1answer
511 views

Bluetooth 'Connection failed - no useable services on this device'

I'm trying to communicate between my RPi4 and a custom Android app on my phone via bluetooth. I had paired the devices, established a connection, and was even sending data over a serial connection, ...
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23 views

Trying to Run Python Scripts on the Pi remotely using bluetooth

I am trying to get a script that is currently on my Raspberry pi 3B+ to start using the Bluetooth on the Pi itself from my laptop. I have tried a few things, including pybluez (wouldn't run on my ...
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1answer
162 views

Constant dhcpcd errors: eth0: authentication failed from IP address: No such file or directory

My syslog is full of these errors: Feb 14 13:24:50 raspberrypi dhcpcd[564]: eth0: authentication failed from aa11::1111:aaaa:aa11:a1a1: No such file or directory Feb 14 13:25:54 raspberrypi dhcpcd[564]...
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1answer
601 views

How to best handle Raspberry Pi 4 and Smartphone connection over Bluetooth and Python

I would like to accomplish the following task: Interact via a python script with my Raspberry Pi and a Smartphone. For me it doesn't matter so much whether to use Classic Bluetooth or BLE but for user ...
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0answers
19 views

RPi Zero Wireless Bluetooth unable or missing to receive 6 bytes of data

I am using pydbus to receive 6 digit value from keypad. When i execute in RPi 3B+, it works fine. When i repeat the same in RPi Zero wireless, it seems not working. I have checked from every angle and ...
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1answer
67 views

RPI 4 Bluetooth Mobile Date & Time Sync [closed]

I am trying to build a carputer and I will have my mobile connected to RPI 4 through a external USB Bluetooth interface. The UI on the application will pick the time and date from Raspbian OS and will ...

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