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by paulknewton
Thu May 02, 2013 6:41 am
Forum: Automation, sensing and robotics
Topic: OWI robotic arm edge
Replies: 5
Views: 6063

Re: OWI robotic arm edge

If you want to avoid running the scripts as root, then you will need to add the sufficient permissions to the USB device. This is described in the README here: https://github.com/dannystaple/robot_arm Basically: sudo nano /etc/udev/rules.d/42-usb-arm-permissions.rules and add: SUBSYSTEM=="usb", ATTR...
by paulknewton
Thu Apr 25, 2013 7:20 pm
Forum: Networking and servers
Topic: Berryterminal not finding LTSP server
Replies: 3
Views: 2069

Re: Berryterminal not finding LTSP server

Hi there - Many thanks for getting back to me on my LTSP issues. Yes, I did manage to get it all working. I now understand better all the many things I was getting wrong. You are right that I don't need 2 NICs. After a bit more (quite a bit more!) experimenting, I ended up with a setup that seems to...
by paulknewton
Wed Apr 17, 2013 10:00 am
Forum: Python
Topic: Python shell class object information
Replies: 3
Views: 972

Re: Python shell class object information

In the Python shell, you can type the name of the object to print the contents: >>> s = 'hello world' >>> s 'hello world' The type(obj) function will return a type object representing the type of the instance. This is a built-in function ( http://docs.python.org/2/library/functions.html#type ): >>> ...
by paulknewton
Wed Apr 17, 2013 9:42 am
Forum: Python
Topic: web pages in python
Replies: 4
Views: 1271

Re: web pages in python

I would 2nd the recommendation to look at Flask ( http://flask.pocoo.org/ ). There are many web frameworks around for python (see here: http://wiki.python.org/moin/WebFrameworks for a list). I was looking for something simple and lightweight and I was really surprised how quick Flask enabled you to ...
by paulknewton
Tue Apr 16, 2013 2:10 pm
Forum: Other projects
Topic: Is it possible to change the password on the pi?
Replies: 6
Views: 4340

Re: Is it possible to change the password on the pi?

Did you do the other things I mentioned? Did you first logon? Did this open your desktop or at least give you a shell command line? If you are logged on then you can issue any shell command (type 'ls' and this will list the directory contents). If you can do all of this then I do not know why the 's...
by paulknewton
Mon Apr 08, 2013 6:09 pm
Forum: Português
Topic: Raspberry Pi Ajuda Websites
Replies: 2
Views: 755

Re: Raspberry Pi Ajuda Websites

But he can use the Spanish forum:

http://www.raspberrypi.org/phpBB3/viewforum.php?f=76

paul.
by paulknewton
Mon Apr 08, 2013 5:23 pm
Forum: Other projects
Topic: Is it possible to change the password on the pi?
Replies: 6
Views: 4340

Re: Is it possible to change the password on the pi?

Once you have booted into Linux (I presume something like Raspbian), you log on as 'pi'. If you are booting straight into the X desktop then pen a shell terminal window (there is probably an icon on the desktop if you use the default distribution, or open it from the menu). Once you have your shell ...
by paulknewton
Mon Apr 08, 2013 5:18 pm
Forum: General discussion
Topic: Compact Flash with USB reader
Replies: 4
Views: 2265

Re: Compact Flash with USB reader

My card is made by Integral. 4GB. It doesn't say much else on it (but it is rather old - probably about 5 yrs old).

Perhaps it is your card reader?

paul.
by paulknewton
Mon Apr 08, 2013 2:57 pm
Forum: General discussion
Topic: Banshee media player ?
Replies: 4
Views: 4181

Re: Banshee media player ?

I agree with the previous poster that some of the standard music players are little heavy for the Pi. I tried out a few different ones and came across Clementine. This is a lighter version of Amarok (i.e. the overall GUI is inspired by the general concepts of Amarok) and actually worked really well....
by paulknewton
Sun Apr 07, 2013 7:25 pm
Forum: General discussion
Topic: Compact Flash with USB reader
Replies: 4
Views: 2265

Re: Compact Flash with USB reader

I just tried connecting my CF card vi a multi-card reader, and it worked fine. The Pi recognises the USB device and I can open it in the file explorer: [email protected] ~ $ lsusb Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus ...
by paulknewton
Sat Mar 30, 2013 9:37 pm
Forum: Networking and servers
Topic: BerryTerminal (Edubuntu/LTSP terminal)
Replies: 105
Views: 47912

Re: BerryTerminal (Edubuntu/LTSP terminal)

Hi there - I'm not a networking or LTSP expert, but I've been trying out LTSP at home and I now have it working fine. A few things that you might want to check: You say that you have 2 DHCP servers on the same subnet. As far as I know, you should not be doing this - at least not without configuring ...
by paulknewton
Thu Mar 28, 2013 3:49 pm
Forum: Beginners
Topic: VNC Help
Replies: 3
Views: 1308

Re: VNC Help

Have you started the VNC server on your Pi (something like TightVNC)? Check it is running on the Pi with 'ps -ef' and look for a VNC server. Another common problem is to make sure you are using the correct port. If you already have an X server running, then the VNC server will be running on port 1. ...
by paulknewton
Thu Mar 28, 2013 3:47 pm
Forum: General programming discussion
Topic: Khan Academy Lite
Replies: 9
Views: 3892

Re: Khan Academy Lite

Carrying on from the previous comment about Raspbmc, it seems like the Pi is playing the role of a video player - storing files locally then playing these to the child's TV. Did you think about just putting version of XBMC - perhaps even a re-skinned/slimmed-down version? The advantage you have with...
by paulknewton
Tue Mar 26, 2013 9:03 pm
Forum: Networking and servers
Topic: Latest BerryTerminal via BerryBoot?
Replies: 0
Views: 422

Latest BerryTerminal via BerryBoot?

I have been using BerryBoot on one of my Pi installations to simplify the multi-booting to various OSs (Raspbian, OpenELEC, BerryTerminal). There is a currently a Beta version of BerryTerminal: http://dl.berryboot.com/berryterminal-20130321.zip but this is not the same as the version which is retrie...
by paulknewton
Tue Mar 26, 2013 8:51 pm
Forum: Staffroom, classroom and projects
Topic: kitting out a classroom
Replies: 128
Views: 39581

Re: kitting out a classroom

And by the way, I've been reading this thread with interest. If your enthusiasm in the classroom is anything the enthusiasm you have on this forum then I am sure the kids have a great time in your lessons. You say that "I know next to nothing about networks..." and yet I only understand half of what...
by paulknewton
Tue Mar 26, 2013 8:49 pm
Forum: Staffroom, classroom and projects
Topic: kitting out a classroom
Replies: 128
Views: 39581

Re: kitting out a classroom

At the risk of looking like an idiot...I didn't have the latest version of BerryTerminal. I'm running BerryTerminal using the BerryBoot loader which downloads images of the various OS's from a remote server. I thought that the BerryBoot installer would always retrieve the latest version of BerryTerm...
by paulknewton
Tue Mar 26, 2013 2:19 pm
Forum: Staffroom, classroom and projects
Topic: kitting out a classroom
Replies: 128
Views: 39581

Re: kitting out a classroom

Did you have to do anything special on the client or server side to get the sound working? I tried 'Sound=True' on the cmdline.txt setup but that didn't work. I'm running an Edubuntu installation on the server with the ltsp-server-standalone packages installed.

paul.
by paulknewton
Tue Mar 26, 2013 12:02 pm
Forum: Media centres
Topic: PI does not recognize external hard drive
Replies: 3
Views: 2187

Re: PI does not recognize external hard drive

When you say that the Pi does not recognise the hard drive, is it registering anything at all. For example, do you see any entries in /var/log/messages or /var/log/syslog when you plug in the drive? If you type 'lsusb' does it list the hard drive as a device? As the previous poster mentioned, it doe...
by paulknewton
Mon Mar 25, 2013 10:50 pm
Forum: Networking and servers
Topic: BerryTerminal (Edubuntu/LTSP terminal)
Replies: 105
Views: 47912

Re: BerryTerminal (Edubuntu/LTSP terminal)

The earlier release notes mentioned that sound has now been fixed. Has anyone managed to get local audio playing? Could they give me some pointers on the cmdline.txt parameters to use?

many thanks,
paul.
by paulknewton
Mon Mar 25, 2013 5:54 pm
Forum: Staffroom, classroom and projects
Topic: kitting out a classroom
Replies: 128
Views: 39581

Re: kitting out a classroom

I have been trying out LTSP at home and I also had problems with Compiz crashing. Some of the posts I turned up on Google seemed to suggest that this is quite a common problem. The only solution is to use another desktop environment (I tried gnome-classic which worked quite well). Since then, LTSP h...
by paulknewton
Wed Mar 20, 2013 9:16 pm
Forum: Networking and servers
Topic: Berryterminal not finding LTSP server
Replies: 3
Views: 2069

Berryterminal not finding LTSP server

Hello there - I am trying to use the Berryterminal thin client to access an LTSP server. I have not had any experience using LTSP before, but I jumped in anyway... I downloaded the Edubuntu Live CD and booted from the CD (I don't want to install Edubuntu until I am sure all of this works). I started...
by paulknewton
Tue Mar 19, 2013 1:16 pm
Forum: General discussion
Topic: Can't search for 'hdmi'
Replies: 4
Views: 756

Re: Can't search for 'hdmi'

Is it possible that common words such as 'hdmi' are excluded to avoid too much load on the forum search server? I'm not sure it is a 'bug'.

In which case, wrapping it in '*' is probably only going to make the problem worse.
by paulknewton
Tue Mar 19, 2013 1:02 pm
Forum: General discussion
Topic: How to log into fresh Raspbian install without display?
Replies: 4
Views: 836

Re: How to log into fresh Raspbian install without display?

The Rasbian image has a default 'pi' user. Password = raspberry

When you log in for the first time, you may want to run raspi-config to setup up the timezone, locales etc:

Code: Select all

sudo raspi-config
regards,
paul.
by paulknewton
Tue Mar 19, 2013 9:37 am
Forum: C/C++
Topic: Where to start with C++?
Replies: 5
Views: 1692

Re: Where to start with C++?

If Java is your target, then I am not sure C++ will necessarily help you get up to speed with Java any faster than just jumping straight into Java. At the risk of opening a pointless debate about the relative strengths of different languages, I think you will find that going straight to Java will in...
by paulknewton
Mon Mar 18, 2013 9:37 pm
Forum: Troubleshooting
Topic: Motion Server Crashes Upon Motion in Feed
Replies: 10
Views: 15605

Re: Motion Server Crashes Upon Motion in Feed

If you are running motion in daemon mode, the output is logged to:
/var/log/syslog (you will generally find the error messages here)
/var/log/messages (shows the activity of motion, but not generally any error messages).

paul.

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