Go to advanced search

by Douglas6
Sat Oct 13, 2018 3:10 pm
Forum: General discussion
Topic: Suggestion for a Christmas Gift
Replies: 7
Views: 230

Re: Suggestion for a Christmas Gift

Including a known good power supply (such as the official one) could save your recipients a lot of grief. And an SD card flashed with the latest Raspbian would make you a Super Santa.
by Douglas6
Thu Oct 11, 2018 8:28 pm
Forum: Troubleshooting
Topic: amsynth delay
Replies: 4
Views: 137

Re: amsynth delay

I like to reward persistence, but I'm afraid I have very little knowledge in this area. I did however recently read an article on Amsynth on the Pi (can't find it now) that described functionable performance in conjunction with the Jack sound server. There's lots of information on the web regarding ...
by Douglas6
Wed Oct 10, 2018 3:19 pm
Forum: Troubleshooting
Topic: No Bluetooth Adapter found
Replies: 3
Views: 82

Re: No Bluetooth Adapter found

I've never had any problems with BLE under 5.23, which is why I ask. If you have any links to those problems, I'd be interested.
by Douglas6
Wed Oct 10, 2018 1:57 pm
Forum: Troubleshooting
Topic: No Bluetooth Adapter found
Replies: 3
Views: 82

Re: No Bluetooth Adapter found

In uninstalling pi-bluetooth, you have uninstalled the hciuart.service, which is responsible for attaching BlueZ with the Pi's UART via HCI.

I would try re-installing pi-bluetooth, although I don't know how that will affect your system now.

What was the motivation for replacing BlueZ 5.23?
by Douglas6
Wed Oct 10, 2018 12:35 am
Forum: Automation, sensing and robotics
Topic: Increase Pi USB Bluetooth RX power.
Replies: 5
Views: 200

Re: Increase Pi USB Bluetooth RX power.

Bccmd seems to be specific to CSR chipsets, and I am far from proficient with the command sets of particular manufacturers. So, again, I don't know.
by Douglas6
Tue Oct 09, 2018 4:04 pm
Forum: Troubleshooting
Topic: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module
Replies: 9
Views: 113

Re: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module

Grrrrr. The only profile that should be needed on the Pi-side is SPP. You have me stumped, sorry.

Please update this thread if you find anything out.
by Douglas6
Tue Oct 09, 2018 3:41 pm
Forum: Troubleshooting
Topic: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module
Replies: 9
Views: 113

Re: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module

Ok, this might be worth a try (might not.) Edit the Bluetooth configuration file: sudo nano /etc/bluetooth/main.conf and add this line at the bottom ControllerMode = bredr Reboot. My thinking is the 'dual-mode' nature of the RN4678 is confusing the Pi. The above command should cause the Pi to ignore...
by Douglas6
Tue Oct 09, 2018 3:12 pm
Forum: Troubleshooting
Topic: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module
Replies: 9
Views: 113

Re: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module

Sorry, I'm out of ideas. It certainly does sound like non-standard behavior on the RN4678 side. Wait. One more idea. Give me a minute.
by Douglas6
Tue Oct 09, 2018 2:36 pm
Forum: Troubleshooting
Topic: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module
Replies: 9
Views: 113

Re: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module

That all looks good. What if you try to connect directly to the device with

Code: Select all

sudo rfcomm connect hci0 D8:80:39:F5:08:52
Does that tell you anything? The only advice I have is rather vapid; try to unpair and re-pair the devices.
by Douglas6
Tue Oct 09, 2018 2:00 pm
Forum: Troubleshooting
Topic: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module
Replies: 9
Views: 113

Re: Bluetooth SPP connection between a Raspberry Pi 3 and a RN4678 module

I'm afraid I have no experience with the RN4678. What does

Code: Select all

sudo sdptool browse D8:80:39:F5:08:52 
say?

In bluetoothctl, enter 'info D8:80:39:F5:08:52' What does it tell you?
by Douglas6
Mon Oct 08, 2018 11:54 pm
Forum: Automation, sensing and robotics
Topic: Increase Pi USB Bluetooth RX power.
Replies: 5
Views: 200

Re: Increase Pi USB Bluetooth RX power.

My gut feeling is to say no. I know that's not helpful with no backup documentation. I just think that, if there were a simple software tweak to increase range, the manufacturer would have already tweaked it.
by Douglas6
Mon Oct 08, 2018 5:18 pm
Forum: Troubleshooting
Topic: Unable to get bluetooth working.
Replies: 8
Views: 154

Re: Unable to get bluetooth working.

Yup, my guess is that's a duff dongle. I've done well by paying $8 - $10 for a name brand dongle
by Douglas6
Mon Oct 08, 2018 4:34 pm
Forum: Troubleshooting
Topic: Unable to get bluetooth working.
Replies: 8
Views: 154

Re: Unable to get bluetooth working.

Try

Code: Select all

sudo hciconfig hci0 up
and post the results.

What's the make and model of the dongle?
by Douglas6
Mon Oct 08, 2018 12:18 am
Forum: Troubleshooting
Topic: Unable to get bluetooth working.
Replies: 8
Views: 154

Re: Unable to get bluetooth working.

I'm not certain that the journalctl error you listed is causing the problem. It's very odd that hciconfig recognizes the device but bluetoothctl does not (unless hciconfig reports the adapter as down).

Could you post the results of hciconfig and opening bluetoothctl?
by Douglas6
Sat Oct 06, 2018 1:09 am
Forum: Python
Topic: imports and classes
Replies: 3
Views: 122

Re: imports and classes

Python recognizes what files are imported, and does not import them again.
by Douglas6
Fri Oct 05, 2018 11:23 pm
Forum: Beginners
Topic: HC-05 and Pi
Replies: 6
Views: 149

Re: HC-05 and Pi

Also on the rx line of the JC-05. do I need a voltage divider? Some tutorial say yes but yet many don't and I don't recall I use it in the last time either. Are you connecting an HC-05 to the Raspberry Pi? I think it depends on the carrier board. I seem to recall I got away without one, but I could...
by Douglas6
Fri Oct 05, 2018 10:42 pm
Forum: Beginners
Topic: HC-05 and Pi
Replies: 6
Views: 149

Re: HC-05 and Pi

The master/slave relationship (or should it be 'parent/worker'? No, it should not) in serial communications only refers to connecting. The slave waits for a connection, the master initiates a connection. After that, the two are peers; either device can read or write. Bluetooth pairing is another top...
by Douglas6
Fri Oct 05, 2018 6:37 pm
Forum: Troubleshooting
Topic: Unable to get bluetooth working.
Replies: 8
Views: 154

Re: Unable to get bluetooth working.

How did you "update to Stretch"? I recommend you try flashing a new SD card with a recent Stretch image, and try that.
by Douglas6
Fri Oct 05, 2018 2:08 pm
Forum: General discussion
Topic: Unable to create rfcomm in device file system (Bluetooth)
Replies: 3
Views: 83

Re: Unable to create rfcomm in device file system (Bluetooth)

Try this. Unpair the phone by entering 'remove <bdaddr>' in bluetoothctl. I would also remove the pairing on the phone as well. Then pair the devices again. I usually pair from the phone; enter 'discoverable on' in bluetoothctl on the Pi, then use the phone to scan and pair with the Pi. I typically ...
by Douglas6
Fri Oct 05, 2018 1:04 pm
Forum: Python
Topic: How to mute sounds on OMXPlayer
Replies: 8
Views: 142

Re: How to mute sounds on OMXPlayer

Thanks again DirkS, you're always correcting my broken links. That was a copy/paste, weird.
by Douglas6
Fri Oct 05, 2018 12:41 pm
Forum: Python
Topic: How to mute sounds on OMXPlayer
Replies: 8
Views: 142

Re: How to mute sounds on OMXPlayer

There's a Python version of dbuscontrol.sh here: https://github.com/Douglas6/omxcontrol/ ... control.py.

Yes it's my code, and yes, I think it still works. Might help you.

[EDIT: Link corrected.]
by Douglas6
Fri Oct 05, 2018 12:28 pm
Forum: General discussion
Topic: Unable to create rfcomm in device file system (Bluetooth)
Replies: 3
Views: 83

Re: Unable to create rfcomm in device file system (Bluetooth)

First, you'll need to enable the Serial Port Profile on the Pi. See this post: https://www.raspberrypi.org/forums/viewtopic.php?p=947185#p947185. Also, make sure the devices are paired and trusted. [EDIT: Ah, I see from your link that it includes adding the SPP in the instructions. Make sure SPP is ...
by Douglas6
Fri Oct 05, 2018 12:07 am
Forum: Media centres
Topic: Netflix on raspberry pi 3 B+
Replies: 14
Views: 843

Re: Netflix on raspberry pi 3 B+

2 cents from one who has lurked on this forum for years. Forget about using the Pi for Netflix or other DRM providers like Amazon, Hulu, etc. If it works, it won't for long. Other options exist, similarly priced to the Pi.

Use the Pi for what it was intended: learning to write your own code.
by Douglas6
Thu Oct 04, 2018 10:22 am
Forum: Other
Topic: Bluetooth not working in Raspberry Pi 3B+ with Xubuntu 18.04
Replies: 5
Views: 225

Re: Bluetooth not working in Raspberry Pi 3B+ with Xubuntu 18.04

You might try installing pi-bluetooth.

Go to advanced search