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by morphy_richards
Thu Jul 06, 2017 2:02 pm
Forum: Scratch
Topic: Scratch 2 - segmentation fault
Replies: 8
Views: 1669

Re: Scratch 2 - segmentation fault

...interestingly, putting the same SD card into a raspberry pi 2 and it works fine. I didn't notice a hardware req in the blog post? (but then I do have a tendency to scan read things)
Not sure if the pi2 will fit in the case they have made... if it does I will just give it to them.
by morphy_richards
Thu Jul 06, 2017 1:54 pm
Forum: Scratch
Topic: Scratch 2 - segmentation fault
Replies: 8
Views: 1669

Scratch 2 - segmentation fault

An electronics student intends to use Scratch 2 on an A+ for a project. Having installed 2017-07-05 (current latest) Rasbian with them, clicking the menu item for Scratch 2 and the hourglass mouse pointer appears for a short while and then goes away and nothing else happens. Typing the command scrat...
by morphy_richards
Sat Apr 29, 2017 5:57 am
Forum: General discussion
Topic: BBC click "unhackable email server"
Replies: 3
Views: 495

BBC click "unhackable email server"

Very interesting article on click about Raspberry Pi being used in American company "nomx" "100% secure personal email server". This company is claiming it has achieved "absolute security"
(Spoiler, it's not "absolutely", or even "quite" secure)
by morphy_richards
Fri Mar 10, 2017 5:14 pm
Forum: Off topic discussion
Topic: Low Power.
Replies: 54
Views: 4499

Re: Low Power.

I can't help thinking that if capacitors were a sensible and economic way to store electricity then we would not be using batteries all over the place. From torches and phones to Teslas. We don't. So I guess they are not. It was only a few years ago or so that I heard of super caps, this young man ...
by morphy_richards
Wed Feb 22, 2017 4:17 pm
Forum: General discussion
Topic: HTML 5 clientless browser based remote desktop for pi
Replies: 38
Views: 5966

Re: HTML 5 clientless browser based remote desktop for pi

Everything is now (almost) working as expected, however, it's taking an age when, after creating a direct network connection between Pi and PC for the login page to show. Even after the Pi has been turned on for some time, when you first establish the physical connection and type in the address of t...
by morphy_richards
Wed Feb 22, 2017 1:41 pm
Forum: General discussion
Topic: HTML 5 clientless browser based remote desktop for pi
Replies: 38
Views: 5966

Re: HTML 5 clientless browser based remote desktop for pi

Its should be ...

Code: Select all

_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi
sudo  /usr/local/sbin/guacd start

exit 0
1) spell sudo correctly (thanks Piglet)
2) don't try to start tomcat7 from rc.local
by morphy_richards
Wed Feb 22, 2017 12:42 pm
Forum: General discussion
Topic: HTML 5 clientless browser based remote desktop for pi
Replies: 38
Views: 5966

Re: HTML 5 clientless browser based remote desktop for pi

Doh!
I've been wondering why it wasn't working! :lol:
by morphy_richards
Tue Feb 21, 2017 1:12 pm
Forum: General discussion
Topic: HTML 5 clientless browser based remote desktop for pi
Replies: 38
Views: 5966

Re: HTML 5 clientless browser based remote desktop for pi

Have had a couple of issues. 1 - when using a sense hat, I cant seem to make LEDs light up. This may be totally unrelated to this headless / browser based desktop setup so I am trying again with a different build of Raspbian. 2- Guacd demon doesn't start after a reboot (although it should. So adding...
by morphy_richards
Fri Feb 17, 2017 4:22 pm
Forum: General discussion
Topic: HTML 5 clientless browser based remote desktop for pi
Replies: 38
Views: 5966

Re: HTML 5 clientless browser based remote desktop for pi

... or at least I will be, SWMBO has just informed me I have to peel carrots :(
by morphy_richards
Fri Feb 17, 2017 4:15 pm
Forum: General discussion
Topic: HTML 5 clientless browser based remote desktop for pi
Replies: 38
Views: 5966

Re: HTML 5 clientless browser based remote desktop for pi

I am revisiting this because I want to recreate DaveSpice's method of creating remote desktop access via a web browser on a PC that's directly connected to a raspberry pi via a straight through network connection. Weirdly I cant get it to work, so I have decided to stick with what I know and use Gua...
by morphy_richards
Thu Feb 02, 2017 9:38 pm
Forum: Off topic discussion
Topic: What are those ridiculously humongous LEDs?
Replies: 12
Views: 2305

Re: What are those ridiculously humongous LEDs?

Thanks everyone. Needed for big friendly buttons Simple Simon type cause and effect thingummy. Have got big buttons. Need big friendly lights to go with them
by morphy_richards
Thu Feb 02, 2017 12:17 pm
Forum: Off topic discussion
Topic: What are those ridiculously humongous LEDs?
Replies: 12
Views: 2305

What are those ridiculously humongous LEDs?

Hi,
I've been trying to get hold of some of those really big LEDs. They are really really big, about the size of an actual light bulb, but in the form of an LED but I'm coming up blank. I don't even know what to call them. (I can only seem to find larger ordinary LEDs)

Any ideas anybody?
by morphy_richards
Sat Dec 31, 2016 8:02 pm
Forum: General discussion
Topic: LogIn Nightmare
Replies: 5
Views: 645

Re: LogIn Nightmare

Odd though because by default shouldn't it just load straight to desktop?
Did Jameslambley use an 8gb SD card or bigger? Did he download the latest release? Did he get Lite?

Perhaps best to start again with Noobs if problems persist
by morphy_richards
Sat Dec 31, 2016 7:53 pm
Forum: General discussion
Topic: LogIn Nightmare
Replies: 5
Views: 645

Re: LogIn Nightmare

Did you do this(Google install Raspbian Apple) eg. http://www.macworld.co.uk/how-to/mac/ho ... c-3637490/
by morphy_richards
Tue Dec 20, 2016 3:30 pm
Forum: Using Raspberry Pi in the classroom
Topic: IoT suggestions?
Replies: 16
Views: 4165

Re: IoT suggestions?

You could stick with the rocket, and have it upload images and telemetry data to somewhere online. That should be fairly easy assuming you can transmit data reliably, decent WiFi might be good enough. It is, at least, in the spirit of the internet of things.
by morphy_richards
Tue Dec 20, 2016 12:15 pm
Forum: Using Raspberry Pi in the classroom
Topic: IoT suggestions?
Replies: 16
Views: 4165

Re: IoT suggestions?

What about connecting your pi GPIO to an L293D motor driver. With that in place the world is your oyster. You could, for instance, control motors or some other high power device such as some Estes model rocket ignitors which in turn are in turn connected to some Estes model rockets! There you go, an...
by morphy_richards
Mon Dec 19, 2016 2:06 pm
Forum: General discussion
Topic: How many Pi;s are dead?
Replies: 19
Views: 1920

Re: How many Pi;s are dead?

I've got lots of Pi B's with broken SD card enclosure / connector thingies. They are far from dead though, they merely have flesh wounds. At some point, perhaps I will screw them all down to one long plank to hold the SD cards properly in place and use them to make a load balancing remote access pi-...
by morphy_richards
Sun Dec 18, 2016 7:56 am
Forum: Weather station
Topic: Data from weather station [Solved]
Replies: 12
Views: 2068

Re: Data from weather station

If your weather station Pi is working and has connectivity on your own internal network, you could install dataplicity on it. Dataplicity is really useful in schools with strict firewalls (we are behind three layered organisations, where the actual internet is provided by Virgin, we then have a stri...
by morphy_richards
Wed Dec 14, 2016 7:45 am
Forum: General discussion
Topic: How to connect Pi to library etc Wifi network
Replies: 25
Views: 1979

Re: How to connect outside network to pi?

Search "dataplicity"
by morphy_richards
Fri Nov 04, 2016 3:35 pm
Forum: Off topic discussion
Topic: Mirai in my home network?
Replies: 3
Views: 824

Mirai in my home network?

Hypothetical question. Lets say I had bought a cheap set of internet connected CCTV security cameras, installed in my home and connected them to my home network. The cameras may be infected with the Mirai malware, potentially turning them into part of colossal DDOS botnet. I rip out the cameras and ...
by morphy_richards
Wed Nov 02, 2016 8:40 pm
Forum: Off topic discussion
Topic: Joke involving rpi
Replies: 16
Views: 1834

Re: Joke involving rpi

peterlite wrote:Were smoke signals digital or phase encoded analogue?
Not sure but fairly sure drums are digital.
by morphy_richards
Sun Oct 23, 2016 9:05 pm
Forum: Off topic discussion
Topic: Collective punishment in schools?
Replies: 19
Views: 3054

Re: Collective punishment in schools?

It's counter productive, creates a team approach to bad behaviour with heroes of disruption leading the pack, it disempowers the teacher. It's unjust.
You should complain.
by morphy_richards
Mon Oct 17, 2016 6:04 pm
Forum: Off topic discussion
Topic: Collective punishment in schools?
Replies: 19
Views: 3054

Re: Collective punishment in schools?

Have you spoken to other parents? Often there are WhatsApp / Facebook groups for parents of children in particular classes, or there is even face to face. Parent power once it's a few is very significant
by morphy_richards
Sun Oct 16, 2016 11:39 am
Forum: Using Raspberry Pi in the classroom
Topic: Another lots of headless pi's thread. Load balancing.
Replies: 2
Views: 932

Another lots of headless pi's thread. Load balancing.

I'm thinking about a new approach to providing access to raspberry Pi's. Unless you have a dedicated room it can be problematic swapping things over etc. I've been toying with the idea of using clientless remote desktop access for a while so students will be able to access a Linux computer for progr...

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