Messages

1

6000 - Tosa / VoIP On the 6000

« on: August 21, 2005, 08:49:35 pm »

Hey Christefano,

Thanks, that stuff just exploded. Most of our real-time machine learning code is available at  the http://www.media.mit.edu/wearables CVS.

I haven't tried Vonage yet, will probably do soon. I'll let you know what I find out.

-Anmol

2

iPAQ Forum / Oe For Mot. E680/i

« on: August 09, 2005, 05:37:53 pm »

Hey, I though that the e680i was built using the MontaVista embedded environemnt, and pretty much locked out until Motorola decided to give developers permissions?

Otherwise, applications developed  for the Zaurus would be a very close match with the e680i.

-Anmol

3

6000 - Tosa / Multiple Apps Accessing Audio

« on: August 08, 2005, 11:49:18 am »

Thanks. I wanted to access the audio while kphone/VOIP is running, so I can execute my speech feature processing code at the same time.

I ended up adding some multi-threaded code to kphone to open the mic and stream the audio out.

4

6000 - Tosa / VoIP On the 6000

« on: August 04, 2005, 08:12:42 pm »

Thanks for all the info guys. kphone installed without any issues,

686113@fwd.pulver.com

The next thing on my list is to open /dev/dsp with two applications simultaneously. I have speech feature processing code that calculates stress, empathy and activity for people in conversation. I want to run this real-time speech feature processing on the Zaurus while using kphone.

I have another post in the same forum about how this is done on a regular linux system.  

Also, I plan on getting a Vonage account so I can make regular PSTN calls with the Z. Anyone have any issues with this, I saw the blog which describes how it might be done.

-Anmol

5

6000 - Tosa / Multiple Apps Accessing Audio

« on: August 04, 2005, 08:02:06 pm »

I was wondering if anyone had tried having multiple applications accessing the audio sub-system on the SL6000 (or any other Zaurus).

You would want something like this is if you want to play mp3's and do VOIP at the same time, or maybe record your VOIP conversations using a console app.

Most desktop Linux distributions allow for mixing of serveral audio sources. From what I gather, this may be enabled in hardware, or may rely on applications like aRTs or ESD to combine the channels, so you can play games and mp3's at the same time. On the Zarus, trying this throws a "/dev/dsp busy" error. I tried searching for esd or arts (ps axu | grep arts) but they don't seem to be running on the Zaurus.

I was wondering if people had tried this sort of a thing or had suggestions about it. I would have to read more about these and see if they could be cross-compiled for the Z.

Thanks,
-Anmol

6

6000 - Tosa / Expansion Sleeve For Sl6000?

« on: July 13, 2005, 09:59:44 pm »

Does anyone know where I can get one? Can't seem to find one on Amazon, Ebay, or the other two SL6000 resellers.

Anyone want to sell one in decent condition?

-Anmol

7

6000 - Tosa / Kismet on the 6000

« on: July 13, 2005, 07:42:47 pm »

probably running out of space.  try this. do a terminal session and then type:

df -h

Alright, fixed it!  I basically ended up doing the following,

- Followed Craig's instructions (usbctl, wlanctl-ng) after every run to shutdown the wireless card
- Used a C application instead of a bash script

The error seemed to be from the driver. I was running 'free' and 'df' in my bash script, and watching out for substantially low memory or disk space.

So now I have a Zaurus application(KismetManager) that continiously scans for 802.11 access points and bluetooth devices in  proximity. It fires up every 60 seconds, scans, stores networks and BTids into a log file and goes back to sleep. Its going to be part of a larger application that maps these to a BuddyList and known locations, and also records my speech and  motion when interesting events occur. If only I had a SL6000 expansion sleeve, I could also take images at the 'interesting' moments. Its been running for the last 5 hours straight ;-)

Cool, thanks a lot guys. All of this stuff is open source, and although we don't have a stable release yet, I can post links to our CVS.

-Anmol

8

6000 - Tosa / Kismet on the 6000

« on: July 07, 2005, 06:20:44 pm »

Arrgh! I've spent the last few days seeking a reliable wireless network scanner which can run on the Zaurii for hours on end (I can arrange an external battery). I'm trying to build software which can approximate my location (kinda rough indoor GPS) based on wifi access points, similar to the IBM placelab project.

- Kismet 2003
Installs cleanly, but freezes up after an hour or so.  It seemed like kismet_client would die after a while, so I wrote a shell script which invoked kismet_server for 100 seconds (after network configuration), kill it, and then sleep for 2  minutes. The system freezes up after a few tries (5-7).

- Kismet 2005
Installs cleanly, thanks to Craig and Ken's instructions. Same problem though, freezes up even faster (10-15 minutes). I looked at the changelog, but wasn't sure what is exactly causing the freezeups.

- Wellenreiter II
Installs cleanly, doesn't freeze up, but scanning slows down after 5-6 minutes, ultimately coming to a halt

- iwlist wlan0 scan
This should give me a list of available networks, which is basically what I care about. However, the iwlist scan command is apparently not implemented in the SL6000 iwtools package

For all these, I'm storing my log files on a 256 MB CF card, so it isn't running out of disk space. I've been using two SL6000s with the Sharp ROM, so its not about a particular Zaurus. I'm in an area where I can see atleast 15 access points and several networks. Kismet 2005 with the same configuration (except source=) works fine on my Knoppix laptop for hours on end.

AFAIK, there are only two possible causes. Either the Zaurus/Kismet combination is running out of memory, or the network card is put into a bad state. I'm not sure what to try next to diagnose and fix the problem. Probably something to check how much memory is being used.

If someone here has Kismet / Wellenreiter working for hours on end without dying out, I would love to know how.

Sorry for the long post, but I'm looking for any ideas.

Thanks,
-Anmol

9

6000 - Tosa / Kismet on the 6000

« on: June 28, 2005, 01:47:07 pm »

Thanks all for testing out the latest version of Kismet. I'm still using the 2003 version.

Just wondering if the latest version still had the problem of Kismet (console) hanging after an hour or so. On my SL 6000s, Kismet tends to hang after an hour or so of scanning for networks. (I'm using Kismet to scan wifi networks and obtain an approximate idea of my location, so I need it running hours at a time).

Any ideas if Wellenrieter would be a better solution?

-A

10

6000 - Tosa / Socket 2.5 bluetooth - now working

« on: August 30, 2004, 11:48:14 pm »

Aha. I found the Bluetooth FAQ on ZUG and got the appropriate ipks. Even after following instructions and moving the file /etc/pcmcia/bm3.conf, when I run,

/etc/rc.d/init.d/bluetooth restart

I get,
...
Starting Bluetooth..Can't get port settings: Input/output error
Can't initialise device.. I / o error

-Anmol
SL6000 out of the box with Socket  Bluetooth CF A / J

11

6000 - Tosa / Socket 2.5 bluetooth - now working

« on: August 30, 2004, 11:01:33 pm »

I'm using a Socket Bluetooth CF for the SL-6000. Can someone send me a link to appropriate BlueZ ipkg?

I tried the BlueZ link from Zaurus Software Index, for both combined ipkg and individual ipks for the latest versions of bluez utils, libs and hcidump. However, modprobe cannot locate 'hci_uart' and 'rfcomm'. I assume that after installing the ipkgs I delete the file mentioned above.

Thanks,
-Anmol

12

6000 - Tosa / external mics with sl6000

« on: August 29, 2004, 10:20:16 pm »

yup. works perfect. Saw the impedance post about mikes.

13

6000 - Tosa / Headphones

« on: August 29, 2004, 10:18:27 pm »

Yup, absolutely right. I saw the impedance post, and just verified it.

Anyone know of really cool mikes to use? I'm using Chameleon cellphone headsets, which are okay but not 'secret service' cool factor.

Thanks,
-A

14

Accessories / Zaurus with Bluetooth Mics?

« on: August 29, 2004, 08:55:02 am »

Some addtional info - using a bluetooth headset requires talking to it using the headset profile (HSP). I'm not sure if bluetooth implementation for the Zaurus supports this profile

-A

15

6000 - Tosa / 'Dream Config' - Possible?

« on: August 29, 2004, 08:34:22 am »

Hmm. Doesn't connecting a headset require talking using the headset profile for bluetooth (rather than the SPP)? Does the Zaurus support it?

-A