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by Douglas6
Sun Jan 21, 2018 12:30 am
Forum: Troubleshooting
Topic: Bluetooth Speaker
Replies: 2
Views: 73

Re: Bluetooth Speaker

Try clicking on the volume icon and selecting the speaker, as you did the first time.
by Douglas6
Sat Jan 20, 2018 10:23 pm
Forum: General discussion
Topic: Bluetooth states No usable services
Replies: 15
Views: 11404

Re: Bluetooth states No usable services

Without knowing what you have done, it's impossible to say. The above posts reference connecting a mouse, connecting a PC, and now you are trying to connect an OBDII device. Not 'the same issue'. Basically, these are steps to connecting the Pi to a Bluetooth serial device: 1. Enable the Serial Port ...
by Douglas6
Sat Jan 20, 2018 10:03 pm
Forum: General discussion
Topic: Raspberry Pi 3 (can i double the processor power?)
Replies: 15
Views: 661

Re: Raspberry Pi 3 (can i double the processor power?)

[T]he Raspberry Pi provides a cheap but effective environment for learning about parallel computing. Ah, but that was not the question that was asked (and is rarely asked). The OP asked "Can I connect two Pi's together so that I can download web pages faster?" That question is asked frequently, and...
by Douglas6
Sat Jan 20, 2018 10:04 am
Forum: General discussion
Topic: Raspberry Pi 3 (can i double the processor power?)
Replies: 15
Views: 661

Re: Raspberry Pi 3 (can i double the processor power?)

These posts always make me wonder if car manufacturers get customer support questions like "Can I put two Ford Fiestas together to get a 300 horsepower car?"
by Douglas6
Fri Jan 19, 2018 3:25 pm
Forum: General discussion
Topic: Connecting Raspberry pi to multiple devices via bluetooth
Replies: 1
Views: 50

Re: Connecting Raspberry pi to multiple devices via bluetooth

rfcomm watch will take an optional parameter to specify the channel, which will default to '1'. So try something like

Code: Select all

sudo rfcomm watch hci0 3
for the second connection.
by Douglas6
Thu Jan 18, 2018 9:15 pm
Forum: Automation, sensing and robotics
Topic: Unable to detect Bluetooth Tile fob when not in pairing mode
Replies: 3
Views: 91

Re: Unable to detect Bluetooth Tile fob when not in pairing mode

So, you have a recent version. Earlier versions couldn't see BLE at all. I'm afraid I can't help you. I don't have a Tile and have not played with one. BLE manufacturers are slowly getting better about securing their devices. 'Pairing' is not normally a BLE thing, but that is of course very insecure...
by Douglas6
Thu Jan 18, 2018 6:14 pm
Forum: Automation, sensing and robotics
Topic: Unable to detect Bluetooth Tile fob when not in pairing mode
Replies: 3
Views: 91

Re: Unable to detect Bluetooth Tile fob when not in pairing mode

What version of bluetoothctl are you using? How do you put a Tile into pairing mode?
by Douglas6
Wed Jan 17, 2018 3:32 pm
Forum: Troubleshooting
Topic: bluetoothctl Cant pair with google home mini
Replies: 2
Views: 76

Re: bluetoothctl Cant pair with google home mini

Is the Google Home mini in pairable mode? I don't have one so I don't know how to do that. It will be in the manual.
by Douglas6
Sun Jan 14, 2018 8:20 pm
Forum: Advanced users
Topic: Reading raw lebluetooth data without connecting
Replies: 1
Views: 92

Re: Reading raw lebluetooth data without connecting

This looks like advertising data being sent from the sensor (makes sense, as no connection is needed to read it.) You should be able to collect it on the Pi using hcitool and hcidump. I'm afraid I can't help with C code. I would search for C examples of scanning BLE advertising packets.
by Douglas6
Sun Jan 14, 2018 6:08 pm
Forum: Troubleshooting
Topic: OBD-PiTFT Bluetooth Issue
Replies: 3
Views: 97

Re: OBD-PiTFT Bluetooth Issue

Since you have verified that Bluetooth serial communication is working, I wouldn't suspect a Bluetooth serial communication issue. More likely a problem with pyobd-piTFT, or your use of it. I don't have an OBD device, so I can't help test. You might try to contact the pyobd-piTFT author.
by Douglas6
Sat Jan 13, 2018 1:37 am
Forum: Troubleshooting
Topic: Bluetooth freezes
Replies: 8
Views: 813

Re: Bluetooth freezes

That's an issue that has been frequently reported on this forum. If you are using the latest Raspbian Stretch release, I would recommend a

Code: Select all

sudo apt-get update
sudo apt-get dist-upgrade 
I was able to stream music to my Bluetooth speaker over WiFi for many minutes with a minimum of glitches.
by Douglas6
Tue Jan 09, 2018 9:57 pm
Forum: Troubleshooting
Topic: Raspberry Pi bluealsa audio breaks
Replies: 2
Views: 124

Re: Raspberry Pi bluealsa audio breaks

First note: your .asoundrc file is odd; you have the same configuration listed twice. I don't think that would cause problems, but I would remove the lines starting with 'defaults.'. I would also do sudo apt-get update sudo apt-get dist-upgrade . There have been recent updates to BlueZ on Raspbian. ...
by Douglas6
Tue Jan 09, 2018 6:36 pm
Forum: Troubleshooting
Topic: Bluetooth issues with USB dongle after reboot...
Replies: 6
Views: 172

Re: Bluetooth needs to unplug/plug USB dongle after reboot to work correctly...

Have you disabled the onboard Bluetooth adapter? Otherwise, when using a dongle, you'll end up with two adapters, hci0 and hci1. That could cause conflicts or confusion. To disable the onboard Bluetooth add this to /boot/config.txt and reboot: dtoverlay=pi3-disable-bt I believe many of the problems ...
by Douglas6
Mon Jan 08, 2018 8:35 pm
Forum: Java
Topic: Java ibeacon
Replies: 1
Views: 102

Re: Java ibeacon

That sounds like an Android programming question. Probably won't find much help on this forum.
by Douglas6
Mon Jan 08, 2018 7:28 pm
Forum: General discussion
Topic: Any info of a new RPi in 2018
Replies: 6
Views: 386

Re: Any info of a new RPi in 2018

Maybe. End of discussion.
by Douglas6
Mon Jan 08, 2018 7:04 pm
Forum: Other projects
Topic: OBD2 Bluetooth won't connect
Replies: 2
Views: 173

Re: OBD2 Bluetooth won't connect

It looks like you have seen the pertinent posts on this forum. I don't understand why you would need to install BlueZ on a recent version of Raspbian. And I don't understand if you're trying to connect to both a PC and an OBD II device via Bluetooth from the Pi. That would (I think) require two inst...
by Douglas6
Sun Jan 07, 2018 9:20 pm
Forum: Beginners
Topic: Raspberry Pi Bluetooth
Replies: 1
Views: 103

Re: Raspberry Pi Bluetooth

Add the Serial Port Profile on the Pi by following these instructions: https://www.raspberrypi.org/forums/viewtopic.php?p=947185#p947185. Skip the 'rfcomm watch' command. Pair and trust the RN42 from the Pi with bluetoothctl. Then run 'sudo rfcomm connect hci0 AA:BB:CC:DD:EE:FF'. That should create ...
by Douglas6
Sun Jan 07, 2018 6:03 pm
Forum: Troubleshooting
Topic: Bluetooth Speaker not working in Raspbian Stretch
Replies: 2
Views: 156

Re: Bluetooth Speaker not working in Raspbian Stretch

No. Hcitool is listing the device address of the Pi's local Bluetooth adapter. Your .asoundrc file should specify the device address of your speaker. I have a Soundcore II and it works great. What are you using to play the audio?
by Douglas6
Sun Jan 07, 2018 1:57 pm
Forum: Troubleshooting
Topic: bluetooth headphone play difficulty
Replies: 1
Views: 84

Re: bluetooth headphone play difficulty

On recent versions of Raspbian, you don't need PulseAudio. I would uninstall it. Yes, you need to be paired, trusted and connected to the remote device. You also need to set that device as the ALSA default. You can do that from the desktop by RIGHT-clicking on the speaker volume icon and selecting i...
by Douglas6
Sat Jan 06, 2018 10:12 pm
Forum: General discussion
Topic: Can't pair HC06 with my Raspberry pi 3.
Replies: 6
Views: 216

Re: Can't pair HC06 with my Raspberry pi 3.

Your Pi's onboard Bluetooth adapter is not being properly recognized. Could be a hardware problem, but more likely your BlueZ configuration is messed up. I'd get a new SD card and load a new version of Raspbian on it.
by Douglas6
Fri Jan 05, 2018 4:24 pm
Forum: Advanced users
Topic: Custom bluetooth agents
Replies: 10
Views: 1521

Re: Custom bluetooth agents

You don't need PyBluez to run simple-agent. You do need the bluez-utils.py module to run simple-agent and several other of the BlueZ test/ scripts, which are all in Python.
by Douglas6
Fri Jan 05, 2018 3:58 pm
Forum: Troubleshooting
Topic: raspberry pi bluetooth (device listen issue)
Replies: 2
Views: 154

Re: raspberry pi bluetooth (device listen issue)

You'll need to catch any exceptions when trying to read from or write to the port (use a try/except block), and if the exception indicates a lost connection, go back to waiting for a new connection (
client_socket,address = server_socket.accept()).
by Douglas6
Fri Jan 05, 2018 2:31 pm
Forum: Advanced users
Topic: Custom bluetooth agents
Replies: 10
Views: 1521

Re: Custom bluetooth agents

Simply run simple-agent. It will make itself the default.
by Douglas6
Tue Jan 02, 2018 11:32 pm
Forum: Beginners
Topic: Raspbian Stretch - Bluetooth Speakers
Replies: 15
Views: 3477

Re: Raspbian Stretch - Bluetooth Speakers

Try using raspi-config to force audio to the onboard audio-out jack.

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