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by MrBunsy
Wed Mar 18, 2015 9:21 pm
Forum: Camera board
Topic: Low latency wifi stream possible?
Replies: 42
Views: 63023

Re: Low latency wifi stream possible?

MrBunsy, did you use the commands from the blog instructions on the RPi side? Not quite - I set the server (pi) side up so it was listening...and stuck that in a while loop with bash. I prefer your idea of having the RPi listen so I used a similar command in a while loop but how do you keep it from...
by MrBunsy
Mon Dec 29, 2014 9:35 am
Forum: Graphics, sound and multimedia
Topic: Can I make this video project work?
Replies: 10
Views: 1453

Re: Can I make this video project work?

Oh, I'd read that as a design assumption.
by MrBunsy
Mon Dec 29, 2014 9:25 am
Forum: Graphics, sound and multimedia
Topic: Can I make this video project work?
Replies: 10
Views: 1453

Re: Can I make this video project work?

If you're not running off batteries, why power the pi down at all?
by MrBunsy
Sat Nov 08, 2014 10:53 am
Forum: General discussion
Topic: Are ARM based computers the future?
Replies: 77
Views: 12661

Re: Are ARM based computers the future?

An interesting point from a talk from a chap from ARM I remember at uni - there was no good technical reason why intel can't get similar performance out of x86. Their processors are basically RISC inside with an x86 wrapper already. So, intel will lose out because they need that RISC-CISC 'wrapper' ...
by MrBunsy
Fri Nov 07, 2014 6:49 pm
Forum: Troubleshooting
Topic: Raspberry Pi Into an FM Transmitter
Replies: 5
Views: 1014

Re: Raspberry Pi Into an FM Transmitter

I'm not sure encouraging polluting the spectrum can really be seen as a 'good' thing.
by MrBunsy
Sat Nov 01, 2014 10:33 am
Forum: General discussion
Topic: Arduino and Pi
Replies: 11
Views: 1547

Re: Arduino and Pi

You'd need to write some software to run on the arduino and do what you want with the GPIO based on what commands you send over whichever link you go for. You could use the Pi's UART if you didn't want to use USB.
by MrBunsy
Sat Mar 29, 2014 7:36 pm
Forum: Beginners
Topic: remote access question
Replies: 4
Views: 790

Re: remote access question

Screen (http://en.wikipedia.org/wiki/GNU_Screen) will do what you want. There are various alternatives too, but screen's what I personally use. It means you can re-access your session despite losing your original ssh session. Alternatively you can start the server in the background by putting & at t...
by MrBunsy
Sat Mar 29, 2014 6:37 pm
Forum: Graphics, sound and multimedia
Topic: Wirelessly Send Audio to Pi
Replies: 4
Views: 1107

Re: Wirelessly Send Audio to Pi

Might Shairport (https://github.com/abrasive/shairport) do what you want?
by MrBunsy
Tue Feb 25, 2014 7:07 pm
Forum: General discussion
Topic: RPi Battery Pack
Replies: 7
Views: 911

Re: RPi Battery Pack

I had an idea the other day - a lead acid battery and an in-car cigarette lighter USB socket might be sufficient. Depends how well regulated it is.
by MrBunsy
Mon Feb 17, 2014 4:48 pm
Forum: General discussion
Topic: RPi Battery Pack
Replies: 7
Views: 911

Re: RPi Battery Pack

I stuck (I think, I'll have to go and track down my notes or circuit board to confirm) the capacitors on the input and out put that the datasheet recommended.
by MrBunsy
Mon Feb 17, 2014 3:44 pm
Forum: General discussion
Topic: RPi Battery Pack
Replies: 7
Views: 911

Re: RPi Battery Pack

by MrBunsy
Mon Feb 17, 2014 3:43 pm
Forum: General discussion
Topic: RPi Battery Pack
Replies: 7
Views: 911

Re: RPi Battery Pack

That certainly looks like it'd do what you want. What I've done for my pi-on-a-robot is buy a cheap 12v lead acid battery and a regulated DC-DC converter to bring that down to 5V, but I can't currently find the exact converter I used.
by MrBunsy
Mon Feb 17, 2014 2:22 pm
Forum: General discussion
Topic: RPi Battery Pack
Replies: 7
Views: 911

Re: RPi Battery Pack

Do you want to buy a complete solution, or are you happy to do some soldering yourself?
by MrBunsy
Tue Sep 10, 2013 8:52 pm
Forum: General discussion
Topic: NSA spying and Raspberry Pi
Replies: 56
Views: 15939

Re: NSA spying and Raspberry Pi

@MrBunsy I can still use internet banking securely, I don't get the logic here. Internet banking relies on verifying that you are actually talking to your bank when you log in. Not some rogue counterfeit. That depends on certificates issued by trusted third parties. The certificate authorities. If ...
by MrBunsy
Mon Sep 09, 2013 5:23 pm
Forum: General discussion
Topic: NSA spying and Raspberry Pi
Replies: 56
Views: 15939

Re: NSA spying and Raspberry Pi

Glad I'm not the only one that feels that way! Personally (and I suspect for a large chunk of the population) there's far, far more risk of me killed or maimed from being run over than blown up. I'd rather have personal freedom, freedom to protest, freedom to not be spied upon, and risk the odd bomb...
by MrBunsy
Sun Sep 08, 2013 3:34 pm
Forum: General programming discussion
Topic: Pi to Computer
Replies: 2
Views: 938

Re: Pi to Computer

I'm pretty sure a few modern games use this technique: http://www.raknet.net/raknet/manual/natpunchthrough.html to allow people without port-forwarding set up manually or with UPnP to host. But for the vast majority of things, if you want to host , rather than simply connect to, something then you d...
by MrBunsy
Sat Sep 07, 2013 6:10 pm
Forum: General discussion
Topic: NSA spying and Raspberry Pi
Replies: 56
Views: 15939

Re: NSA spying and Raspberry Pi

There is of course a lot of technicalities of TLS that I don't understand but the general idea seems to be: 1) Before I offer my password, or any other "secret" info to the forum I would really like to know that I am actually talking to the forum. Not some other evil entity who is just pretending t...
by MrBunsy
Sat Sep 07, 2013 1:32 pm
Forum: General discussion
Topic: NSA spying and Raspberry Pi
Replies: 56
Views: 15939

Re: NSA spying and Raspberry Pi

Heater wrote:cyrano,
There's nothing wrong with TLS/SSL
As I just said on another thread here, we have to assume that all the certificate authorities are compromised by the NSA at this time. We cannot trust them.
But RSA in and of itself still looks to be secure, so long as your keys are big enough.
by MrBunsy
Tue Aug 27, 2013 5:11 pm
Forum: Python
Topic: how take data string from serial and write into file
Replies: 11
Views: 5727

Re: how take data string from serial and write into file

Post the full new code? Post the full errors?
by MrBunsy
Mon Aug 26, 2013 7:08 pm
Forum: Python
Topic: how take data string from serial and write into file
Replies: 11
Views: 5727

Re: how take data string from serial and write into file

Why keep closing and opening? Why not just keep the file open?
by MrBunsy
Mon Aug 26, 2013 9:02 am
Forum: Automation, sensing and robotics
Topic: Hawk-Pi Goal Line Technology. Kickstarter project?
Replies: 1
Views: 866

Re: Hawk-Pi Goal Line Technology. Kickstarter project?

How're you planning on tracking the ball? If you're going to be using cameras, probably best identify what you could use and then work out how much processing power you'll need to deal with the data after that. Unless you're after creating something that requires a huge time and effort, would you no...
by MrBunsy
Tue Aug 20, 2013 8:41 pm
Forum: Off topic discussion
Topic: Is it safe to buy stuff with no FCC/CE certification?
Replies: 7
Views: 1531

Re: Is it safe to buy stuff with no FCC/CE certification?

Not quite. It may not meet shielding/interference standards, but there is utterly no danger from the signals put out by wireless communications devices - other than interfering with other wireless communications devices. No danger at the legal power levels , to be picky. Crank up the power and you ...
by MrBunsy
Sat Aug 17, 2013 9:22 pm
Forum: General discussion
Topic: [SOLVED] Colors in putty
Replies: 5
Views: 8948

Re: Colors in putty

Settings for this are in the .bashrc file. I can't find any particularly good links to give you, but the Arch wiki may help: https://wiki.archlinux.org/index.php/Color_Bash_Prompt
by MrBunsy
Mon Aug 12, 2013 6:45 pm
Forum: General discussion
Topic: how long it can be on without rest
Replies: 14
Views: 2352

Re: how long it can be on without rest

uptime 05:21:42 up 314 days, 5:29, 1 user, load average: 0.37, 0.14, 0.08 8-) Wot? No reboot? Don't you update the kernel at all? I was trying to get to a year uptime. A powercut has stopped me, alas. I've now finally replaced it with an up-to-date raspbian, rather than the original soft float sque...
by MrBunsy
Thu Aug 08, 2013 6:27 pm
Forum: General discussion
Topic: Recommend a Pi alternative for a (usable) NAS?
Replies: 15
Views: 10496

Re: Recommend a Pi alternative for a (usable) NAS?

If power requirement isn't too much of an issue, a low power atom board would work.

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