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by williamhbell
Sat May 24, 2014 12:30 am
Forum: Troubleshooting
Topic: Not booting up
Replies: 13
Views: 1773

Re: Not booting up

I have just tried a standard wired USB keyboard with no dongles inserted but directly into the Pi and also the powered USB. The Pi doesn't boot at all, like this including taking it out and back in after powering up the Pi. If you remove the powered hub from the Raspberry Pi USB and connect just th...
by williamhbell
Sat May 24, 2014 12:23 am
Forum: Teaching and learning resources
Topic: Getting the Pi to send an e-mail
Replies: 1
Views: 1497

Re: Getting the Pi to send an e-mail

All of the configuration file changes can be avoiding by using python's smtp library, #!/usr/bin/env python # A program to send an email with gmail import smtplib from email.mime.text import MIMEText def sendGmail(fromaddr, toaddr, username, password, email_body, email_subject): # Build the email ms...
by williamhbell
Thu May 22, 2014 12:01 am
Forum: Wanted
Topic: Wanted: old model B (256MB ram)
Replies: 11
Views: 8494

Re: Wanted: old model B (256MB ram)

I still have old model B that I'm not using anymore. I've had quite a few usb issues with the old model, so you might want to take that into account. I don't really want any money for it anymore, so if you are ok with just paying the shipping costs (I live in Belgium btw), just send me a pm... Have...
by williamhbell
Wed May 21, 2014 11:52 pm
Forum: Troubleshooting
Topic: Not booting up
Replies: 13
Views: 1773

Re: Not booting up

Right I have the powered USB. However surprisingly I still have the same problem. I have the red power light on and oasionally the green ACT one flashes but nothing on screen. This probably means that the keyboard is not recognised due to a power problem or there is some USB issue with the hub and ...
by williamhbell
Wed May 21, 2014 8:24 pm
Forum: General discussion
Topic: Help with BrickPi Please!
Replies: 7
Views: 2075

Re: Help with BrickPi Please!

If you just need Python and Scratch access to the BrickPi, then Raspbian and the instructions in the BrickPi article in Issue 23 of The MagPi (http://www.themagpi.com) produce a working setup.
by williamhbell
Wed May 21, 2014 8:19 pm
Forum: Automation, sensing and robotics
Topic: Lego + Pi (Beginner)
Replies: 3
Views: 1546

Re: Lego + Pi (Beginner)

You should be able to use another microprocessor chip to do this. The code at
https://github.com/mindboards/ev3source ... d_analog.c
explains how LEGO devices work.
by williamhbell
Wed May 21, 2014 8:16 pm
Forum: Troubleshooting
Topic: Pi import errror!
Replies: 2
Views: 631

Re: Pi import errror!

Hi. quick question this time, When i got the latest DexterInd image, i tried (as part of installation) typing import BrickPi , its brings up. bash:import: command not found ? how can i get this to work? Sam Hi Sam, The BrickPi Python code has since been packaged as a PyPi package: https://pypi.pyth...
by williamhbell
Wed May 21, 2014 8:10 pm
Forum: Troubleshooting
Topic: Not booting up
Replies: 13
Views: 1773

Re: Not booting up

However, is this is to do with power, it should book OK when neither dongle is is yes ? It doesn't, if I try to boot up with no dongles it doesnt boot, when I put a dongle in it does..... Can you define "doesn't"? When there is no keyboard or mouse present, then the Raspberry Pi will switch to head...
by williamhbell
Wed May 21, 2014 8:04 pm
Forum: Beginners
Topic: VNC connection has root priviledges
Replies: 1
Views: 443

Re: VNC connection has root priviledges

I've configured TightVNC as per the instructions in the help section , and it worked very well, but for the fact that my VNC session is as 'root' - which strikes me as dangerous for a noob! How do I specify an ordinary user account for the VNC connection? Yes, running as root is not a good idea. Tr...
by williamhbell
Wed May 21, 2014 7:54 pm
Forum: Other programming languages
Topic: MS DOS
Replies: 4
Views: 5125

Re: MS DOS

DougieLawson wrote:Is there any value in trying to get MSDOS running on a RPi?
Microsoft and the Computer History Museum have released the source code at http://www.computerhistory.org/ms-dos-e ... agreement/
Why not use dosbox,

Code: Select all

sudo apt-get install dosbox
?
by williamhbell
Wed May 21, 2014 7:45 pm
Forum: C/C++
Topic: Learning C
Replies: 13
Views: 2586

Re: Learning C

Are there any good resources for learning C for Raspberry Pi? You could always try the C Cave series in The MagPi. The list of articles can be found by going to http://magpiindex.steverigg.co.uk/index.php and then selecting "Programming C/C++" from the category menu. The articles build from simple ...
by williamhbell
Wed May 21, 2014 2:56 pm
Forum: Scratch
Topic: Scratch to hardware API: call for discussions
Replies: 55
Views: 16152

Re: Scratch to hardware API: call for discussions

Just a bit of info picked up at the Jamboree - a foundation developer has suggested making a background running C++ daemon to monitor if Scratch is running or not -and if it is - then handle any requests from Scratch to communicate to the GPIO pins. Can't see any reason a daemon would be needed; ju...
by williamhbell
Sat May 17, 2014 2:44 pm
Forum: Raspbian
Topic: Raspbian Image
Replies: 3
Views: 859

Re: Raspbian Image

Hi Paul, When dealing with a large number of Raspberry Pis, it can save a lot of time to build your own image. In this manner one can apt-get upgrade, change the keyboard, language and add other software etc. before making an image to copy. (gparted to reduce the image size and ssh key removal are a...
by williamhbell
Sat May 17, 2014 2:36 pm
Forum: Scratch
Topic: Scratch and robotics
Replies: 14
Views: 3614

Re: Scratch and robotics

Hello, I thought a while about this coding problem. Problems like this where a 'success feedback' is needed typically need a 'hardware abstraction layer' HAL, handling communication to external device and hiding communication details, timeouts and more. In scratch 1.4, the only way I know to implem...
by williamhbell
Sun May 11, 2014 9:57 pm
Forum: Other projects
Topic: MagPi: more volunteers needed
Replies: 0
Views: 1560

MagPi: more volunteers needed

Hi, Due to a range of factors, we are very low on MagPi team effort at the moment. Would anyone be willing to help for a month or more? We are looking for people to fill all roles : layout, testing, graphics, and proof reading. If you have a little time available please email editor@themagpi.com Tha...
by williamhbell
Fri May 02, 2014 8:50 pm
Forum: Other projects
Topic: MagPi Issue 23
Replies: 0
Views: 1452

MagPi Issue 23

Hi,

Issue 23 of the MagPi just went live:
http://www.themagpi.com/issue/issue-23/

Best regards,

Will
by williamhbell
Thu May 01, 2014 10:55 pm
Forum: Scratch
Topic: Scratch and robotics
Replies: 14
Views: 3614

Re: Scratch and robotics

Hi Ben, From experiments with scratchpy on the Raspberry Pi, the maximum stable sensor update rate is about 2Hz. This was achieved by using a trigger message from the Python side, to minimise the CPU usage in Scratch. The Python code and examples used for the BrickPi can be found in Issue 23 of the ...
by williamhbell
Tue Apr 29, 2014 12:29 pm
Forum: User groups and events
Topic: Glasgow Raspberry Pi day?
Replies: 3
Views: 1705

Glasgow Raspberry Pi day?

Hi,

Would anyone be interested in a Glasgow (Scotland) Raspberry Pi day? While it is a long way off, I am starting to setup an event later this year. If you're interested, please can you send me a private message or reply to this thread?

Thanks and best regards,

Will
by williamhbell
Sun Apr 06, 2014 7:44 am
Forum: Other projects
Topic: MagPi Issue 22
Replies: 1
Views: 1738

MagPi Issue 22

Hi,

Issue 22 of the MagPi went live this morning:
http://www.themagpi.com/issue/issue-22/

Best regards,

Will
by williamhbell
Wed Mar 26, 2014 10:25 pm
Forum: User groups and events
Topic: Raspberry Pi au CERN
Replies: 1
Views: 1061

Re: Raspberry Pi au CERN

Similar to all previous events, this event will be in French and English. The number of people signed up is approaching 90. If you are near to Geneva and willing to present a project or drop in for the day, please get in touch soon.

à bientôt,

Will
by williamhbell
Sun Mar 16, 2014 8:16 am
Forum: Teaching and learning resources
Topic: MagPi education: special offer
Replies: 0
Views: 955

MagPi education: special offer

Hi,

Printed copies of the MagPi are now available as part of a limited-time special offer for schools:
http://www.themagpi.com/education/

Best regards,

Will
by williamhbell
Tue Mar 11, 2014 3:57 pm
Forum: User groups and events
Topic: Raspberry Pi au CERN
Replies: 1
Views: 1061

Raspberry Pi au CERN

There will be another Raspberry Pi programming day at CERN, on the 12th of April:
http://home.web.cern.ch/students-educat ... g-day-cern
by williamhbell
Sat Mar 08, 2014 10:01 am
Forum: Français
Topic: comment "hacker" minecraft pi?
Replies: 7
Views: 1537

Re: comment "hacker" minecraft pi?

Bonjour,

Pour le Raspberry Pi, il y a seulement:
http://pi.minecraft.net/
Cette version utilise le processeur graphique et le processeur à virgule flottante du Pi.

à bientôt,

Will
by williamhbell
Fri Mar 07, 2014 11:38 pm
Forum: Français
Topic: comment "hacker" minecraft pi?
Replies: 7
Views: 1537

Re: comment "hacker" minecraft pi?

Salut,

Il y a des exemples de Minecraft avec Python dans le MagPi:
http://www.themagpi.com/issue/issue-11/ ... i-edition/
Ce n'est pas nécessaire de copier l'API, si vous avez changé le PYTHONPATH.

à bientôt,

Will
by williamhbell
Thu Mar 06, 2014 11:11 am
Forum: Scratch
Topic: Scratch to hardware API: call for discussions
Replies: 55
Views: 16152

Re: Scratch to hardware API: call for discussions

Hi, Following requests from local schools, a flexible I/O interface for Scratch was created: https://pypi.python.org/pypi/RpiScratchIO/ http://www.themagpi.com/issue/issue-20/ (pages 36-39) since then documentation on how to add any additional device has been written. This is as simple as writing a ...

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