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by chuckh
Thu Feb 04, 2016 4:32 pm
Forum: Troubleshooting
Topic: Bluetooth RFCOMM - Jessie
Replies: 30
Views: 35345

Re: Bluetooth RFCOMM - Jessie

I was thinking I might be able to see some useful information in debugfs, although I am not very familiar with it: pi@raspberrypi:~ $ sudo ls -l /sys/kernel/debug/bluetooth total 0 drwxr-xr-x 3 root root 0 Feb 3 23:25 hci0 -r--r--r-- 1 root root 0 Jan 30 09:17 l2cap -rw-r--r-- 1 root root 0 Jan 30 0...
by chuckh
Thu Feb 04, 2016 7:45 am
Forum: Troubleshooting
Topic: Bluetooth RFCOMM - Jessie
Replies: 30
Views: 35345

Re: Bluetooth RFCOMM - Jessie

No clarity on the occasional failure of rfcomm to close /dev/rfcomm0 when the remote device disconnects. Waiting for a long time (several minutes) after disconnecting does not seem to cause an automatic cleanup. I was trying to work around this by using rfcomm listen inside a loop, instead of rfcomm...
by chuckh
Sat Jan 30, 2016 4:44 pm
Forum: Troubleshooting
Topic: Bluetooth RFCOMM - Jessie
Replies: 30
Views: 35345

Re: Bluetooth RFCOMM - Jessie

@Douglas6 That's an interesting test. I'd say I get roughly 80% failure rate with 'cat {}' in there, and about 10% failure rate without. A timing race maybe? Another data point: the Android application seems to work perfectly when talking to an Ubuntu 14.04 desktop PC running bluez4. I transferred t...
by chuckh
Wed Jan 27, 2016 5:06 pm
Forum: Troubleshooting
Topic: Bluetooth RFCOMM - Jessie
Replies: 30
Views: 35345

Re: Bluetooth RFCOMM - Jessie

I am trying to accomplish the same thing as the OP: talk to a Raspberry Pi from an Android phone serial application. In my case the Android app is https://play.google.com/store/apps/details?id=nextprototypes.BTSerialController&hl=en This is my first effort at RPi Bluetooth and I am using the jessie ...
by chuckh
Sun Feb 15, 2015 7:23 pm
Forum: Other
Topic: Ubuntu / Linaro for Raspberry Pi 2
Replies: 309
Views: 131950

Re: Ubuntu / Linaro for Raspberry Pi 2

@tinkernick - I'm planning to bring up ROS on Pi2 as well; can you post a step-by-step?

Thanks,
Chuck
tinkernick wrote:Have got ROS running with turtlebot - including Kinect - using the image you have made. Have got the depth camera working (data looks sensible), but the RGB camera isn't at the moment.

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