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by error404
Thu Jan 26, 2012 9:12 am
Forum: General discussion
Topic: Re: Sad about removal of I2S. Why was this change made?
Replies: 76
Views: 49730

Re: Sad about removal of I2S. Why was this change made?

I'll just +1 the disappointment. Was really looking forward to making use of I2S, but glad I didn't put any time into it .

The possible availability of a hack interests me. I will (impatiently) await release of schematics...
by error404
Wed Jan 25, 2012 8:58 pm
Forum: Other projects
Topic: NFC Sound system
Replies: 4
Views: 2310

Re: NFC Sound system

<t>If you have previously established the Bluetooth pairing then this is basically what will happen, no need for NFC. With NFC you can probably make it happen, but really I don't see the point unless you're trying to sell this to people who can't pair Bluetooth devices <br/> <br/> That said, I don't...
by error404
Wed Jan 25, 2012 6:44 pm
Forum: Other projects
Topic: Google cloud printer?
Replies: 5
Views: 3709

Re: Google cloud printer?

<r>If your printer can work with CUPS (see <URL url="http://www.openprinting.org/printers/">http://www.openprinting.org/printers/</URL> for info on how to make printers work), someone has developed a Python proxy between CUPS and Google Cloud Print. The CUPS part will be available from the Debian pa...
by error404
Wed Jan 25, 2012 6:25 pm
Forum: Other projects
Topic: Re: Making VPN router
Replies: 11
Views: 4552

Re: Making VPN reouter

<t>Cracknel said:<br/> <br/> <br/> But where's the fun in that? <br/> <br/> <br/> <br/> Ending up with a solution that is reliable and works well? OP's query seemed somewhat business oriented, where I really wouldn't want to hack something together with USB NICs. If you're just doing it for fun thou...
by error404
Wed Jan 25, 2012 6:07 pm
Forum: General discussion
Topic: Use RPi as a proxy / net filter
Replies: 22
Views: 24951

Re: Use RPi as a proxy / net filter

<t>I agree mgmt_idiot, this box is less than ideal for this kind of task. The onboard NIC is USB as well.<br/> <br/> There are a few solutions out there that are much more suitable (though indeed more costly) for networking duties. At least something that has an MII interface for its NIC and an 802....
by error404
Wed Jan 25, 2012 5:31 am
Forum: General discussion
Topic: Solar Power
Replies: 54
Views: 17047

Re: Solar Power

<r>Orbitoid said: <br/> <br/> <br/> Any links to a good solar panel/battery combo that might work well?<br/> <br/> <br/> It's hard to dimension a solution without really having a good idea of what the power consumption is. I believe the number that's been thrown around is 2.5W maximum? So a day at m...
by error404
Wed Jan 25, 2012 2:15 am
Forum: Other projects
Topic: Re: Making VPN router
Replies: 11
Views: 4552

Re: Making VPN reouter

Raspberry Pi is about as far from ideal as it gets for this kind of application. You'd be better off with a RouterBoard or even a consumer router with new firmware IMO. Much cleaner, should be more stable, and will probably perform better.
by error404
Tue Jan 24, 2012 7:53 pm
Forum: Other projects
Topic: Possible bluetooth connectivity
Replies: 7
Views: 2918

Re: Possible bluetooth connectivity

<t>SergeantFTC said: <br/> <br/> I would also love to connect an NXT to the Pi, but I believe that requires special drivers from LEGO that are not available on ARM or Linux in general.  :(<br/> NXT uses the Bluetooth serial port protocol, which should be easy to connect to the Pi with a Bluetooth do...
by error404
Tue Jan 24, 2012 5:55 pm
Forum: General discussion
Topic: Solar Power
Replies: 54
Views: 17047

Re: Solar Power

<t>hyuecn said: <br/> <br/> <br/> I have a freeloader and actually it works pretty well, when travelling it was often the only way to get my mobile to charge. However you are right to suggest that it works best by being charged up first by the sun, and then using the stored power rather than chargin...
by error404
Fri Jan 20, 2012 12:14 am
Forum: Other projects
Topic: Music Player and Librabry
Replies: 9
Views: 3197

Re: Music Player and Librabry

<t>rmcgeown said: <br/> <br/> <br/> I want to find a DVI monitor with a powered USB hub. I hope this will allow me to power the R-Pi from the monitor meaning only 1 cable going into the juke box enclosure (to be wall mounted).<br/> <br/> <br/> Should work.<br/> <br/> <br/> The USB HDD might end up a...
by error404
Thu Jan 19, 2012 9:46 pm
Forum: Other projects
Topic: Active Crossovers one per Speaker
Replies: 7
Views: 6424

Re: Active Crossovers one per Speaker

<t>Gert said: <br/> <br/> <br/> Before somebody points to an old post of mine about Audio quality:<br/> <br/> In the past I said the the Raspberry-Pi would have a PCM/I2S  port.<br/> <br/> A while ago I found that not to be true. In the last PCB change the GPIO pins which carry the PCM/I2S signals w...
by error404
Thu Jan 19, 2012 6:02 pm
Forum: Other projects
Topic: Active Crossovers one per Speaker
Replies: 7
Views: 6424

Re: Active Crossovers one per Speaker

<t>Interesting. Good idea. It's certainly possible, but there are some (somewhat) difficult issues to solve. Key among them is going to be synchronization. You're going to want the audio *output*, which means end-to-end latency, between speakers to be synchronized sub-ms. I think NetJACK might be go...
by error404
Thu Jan 19, 2012 5:52 pm
Forum: Other projects
Topic: Music Player and Librabry
Replies: 9
Views: 3197

Re: Music Player and Librabry

rmcgeown said:


Unfortunately LIRC doesnt support USB IR reveivers, so i may have to try and wire i nto the GPIO.



Yes it does? Not sure where you get your information but there are drivers for quite a few IR receivers, now in mainline, that work with LIRC.
by error404
Thu Jan 19, 2012 5:46 pm
Forum: General discussion
Topic: Power Supply
Replies: 15
Views: 4556

Re: Power Supply

<r>bredman said: <br/> <br/> <br/> My current plan is to use one of these.<br/> <br/> <URL url="http://dx.com/mini-usb-power-a.....plug-47372">http://dx.com/mini-usb-power-a.....plug-47372</URL><br/> <br/> It costs $3.63 (free shipping) plus $1.20 for a cable (part 48924).<br/> <br/> The current rat...
by error404
Thu Jan 19, 2012 4:49 am
Forum: Other projects
Topic: Automatic power on/off
Replies: 51
Views: 27248

Re: Automatic power on/off

<t>kme said: <br/> <br/> As far as I have understood the R-Pi won't come near 100 mW when idle. Maybe the half or a quarter. But I don't have solid knowledge.<br/> <br/> I'm talking about effectively 'off' in sleep modes. I assume the processor has sleep modes, and this should get power consumption ...
by error404
Thu Jan 19, 2012 4:45 am
Forum: Other projects
Topic: Mini oscilloscope ?
Replies: 11
Views: 12822

Re: Mini oscilloscope ?

Not without adding an ADC. Maybe doable for around the same price as the DSO Nano - but without a screen...
by error404
Tue Jan 17, 2012 9:56 pm
Forum: General discussion
Topic: How to protect the filesystem without a save shutdown button?
Replies: 61
Views: 29464

Re: How to protect the filesystem without a save shutdown button?

<t>slacer said:<br/> <br/> <br/> I assume each student picks a device out of a lockable cupboard, connects it to monitor, mouse, keyboard, usbstick and power. And is happy if he does not have to ask the teacher for an SD card with a valid OS.<br/> <br/> <br/> Personally I would think that in a lab e...
by error404
Tue Jan 17, 2012 9:07 pm
Forum: Other projects
Topic: Automatic power on/off
Replies: 51
Views: 27248

Re: Automatic power on/off

<t>Yes, you'd of course want both mechanisms. I would just not rely on a software-based solution, even if it's pretty foolproof. Software is too complex to really understand all the possible ways it can fail or get gummed up. The necessary hardware to implement a 1 minute delay is trivial, and prett...
by error404
Tue Jan 17, 2012 9:02 pm
Forum: General discussion
Topic: How to protect the filesystem without a save shutdown button?
Replies: 61
Views: 29464

Re: How to protect the filesystem without a save shutdown button?

<t>I guess this raises a question - does the Pi include a software-controlled power switch, enabling a proper self-shutdown? I'm going to assume no. This is a bit disappointing because it requires a two-step shutdown and precludes an automatic shutdown of e.g. a lab. Since we're talking about relati...
by error404
Tue Jan 17, 2012 8:30 pm
Forum: General discussion
Topic: How to protect the filesystem without a save shutdown button?
Replies: 61
Views: 29464

Re: How to protect the filesystem without a save shutdown button?

<t>Canuck said: <br/> <br/> <br/> I heard it could cause mass corruption if the system is doing something disk intensive, then quickly looses power with ReiserFS.<br/> <br/> <br/> <br/> I've seen Reiser fail spectacularly in this kind of situation as well, but this is due to the quality of Reiser, n...
by error404
Tue Jan 17, 2012 8:25 pm
Forum: Other projects
Topic: Automatic power on/off
Replies: 51
Views: 27248

Re: Automatic power on/off

<t>Don't use a 7805 for this. You'll need a beefy heatsink to not go into thermal shutdown at 300mA, and even then… You really need a switching regulator. The good thing is that you can get them for a buck or two by cannibalizing a cigarette USB charger.<br/> <br/> Does anyone know if there is kerne...
by error404
Tue Jan 17, 2012 8:06 pm
Forum: General discussion
Topic: How to protect the filesystem without a save shutdown button?
Replies: 61
Views: 29464

Re: How to protect the filesystem without a save shutdown button?

<t>The quality of ResierFS notwithstanding, physicals drives are immune to the issues we're discussing here since there is no further abstraction table that needs to be updated, the filesystem is in complete control, and it is possible to guard against incomplete writes.<br/> <br/> I don't really se...
by error404
Tue Jan 17, 2012 7:55 pm
Forum: General discussion
Topic: Raspberry Pi playing 1080p video and AirPlay
Replies: 13
Views: 6686

Re: Raspberry Pi playing 1080p video and AirPlay

<t>It works on other ARM and MIPS boxes like wireless routers and the like, so it should 'just work ™' on Raspberry Pi. Codec support will of course depend on what's been ported, but I am confident that at least FLAC, Ogg and MP3 will be fine; more obscure codecs might not. Debian has packages for i...
by error404
Tue Jan 17, 2012 4:34 am
Forum: General discussion
Topic: freshman question:Is the project open source?
Replies: 2
Views: 873

Re: freshman question:Is the project open source?

No. For now anyway. Their goals in the future in this regard aren't very clear.
by error404
Tue Jan 17, 2012 4:26 am
Forum: General discussion
Topic: Raspberry Pi playing 1080p video and AirPlay
Replies: 13
Views: 6686

Re: Raspberry Pi playing 1080p video and AirPlay

openprivacy said:


Pointers/suggestions/help requested.


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