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by Cheetah
Fri Jan 10, 2014 9:48 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 113846

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

I was wondering did you ever build this case, which looked pretty cool ? They occasionally post updates on their Twitter feed, e.g.: https://twitter.com/ModMyPi/status/421624658635411456. They previously indicated they were going to do a kickstarter some time in January to help bootstrap the fundin...
by Cheetah
Fri Jan 10, 2014 12:50 am
Forum: General discussion
Topic: Power switch now available for Pi
Replies: 48
Views: 38394

Re: Power switch now available for Pi

Looks good, but the external 120v - 5v adapter is still wasting power all the time. It would be better to have this switch cut power at the mains instead, using some kinyd of relay. Making a device that can turn on a relay at mains level when disconnected from the mains, and be electrically safe, w...
by Cheetah
Mon Dec 16, 2013 4:58 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 113846

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

Check the dates and the content of the tweets ... the kickstarter campaign is what's slated to start in January.
by Cheetah
Tue Dec 10, 2013 6:58 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 113846

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

Jb2cool wrote:I suspect a lot of the potential buyers for this have done something else now.
On the other hand, I haven't seen anything like this available anywhere else. I for one am still intending to be near the front of line if & when they're available :)
by Cheetah
Wed Nov 06, 2013 2:58 pm
Forum: General discussion
Topic: Power switch now available for Pi
Replies: 48
Views: 38394

Re: Power switch now available for Pi

The hub you referenced has a mechanism to prevent backpowering? Because it doesn't state anything to that effect and the single review suggests otherwise. I don't see anything in the review that suggests it provides back power. IME very few hubs do, esp. not good ones, and providing back power is i...
by Cheetah
Thu Oct 31, 2013 2:07 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 113846

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

http://imageshack.us/scaled/large/607/2c8h.jpg http://imageshack.us/scaled/large/401/3jm3.jpg I realize there's nothing you can do about it, certainly at this point, but it's unfortunate that the arrangement of the header(s) on the Pi mean that the ribbon cable is on the "far side", so you can't co...
by Cheetah
Wed Oct 30, 2013 4:49 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 113846

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

I think with the hub and HDD you are making it a little too niche. Have you thought about the extra space just being more of a free development area? Sell a number of boards like the Adafruit Perma-Proto and allow users to have this as a case designed to protect their prototypes. Personally I find ...
by Cheetah
Mon May 20, 2013 6:55 pm
Forum: Camera board
Topic: STICKY: Foundation (old) Camera Board information
Replies: 446
Views: 308191

Re: Foundation Camera Board information

I've been looking in to inserting direct to a container, but there are issues with the GPU firmware - untested code that isn't included in the Raspberry Pi firmware build. SO its not a quick fix. Wouldn't it be easier, and more maintainable, if the containerization was done in the userspace app? I ...
by Cheetah
Mon May 20, 2013 5:43 pm
Forum: Camera board
Topic: STICKY: Foundation (old) Camera Board information
Replies: 446
Views: 308191

Re: Foundation Camera Board information

Just to clarify... there is licensing required to emit a MPEG4 (.mp4) stream ("wrapper" around H.264) that is separate from the H.264 license? .mp4 != MPEG4 != H.264 Technically speaking, H.264 is a subset of the MPEG4 spec (Part 10, Advanced Video Coding). As a result, .mp4 and .m4v files often co...
by Cheetah
Fri May 03, 2013 1:50 pm
Forum: Advanced users
Topic: 64-bit toolchain
Replies: 5
Views: 2623

Re: 64-bit toolchain

I would assume the basic rationale is that you can run the i686 toolchain on an x86_64 machine (assuming you install the i686 libc and such from your package manager), meaning that only one binary distribution is necessary.
by Cheetah
Fri May 03, 2013 1:33 pm
Forum: Camera board
Topic: STICKY: Foundation (old) Camera Board information
Replies: 446
Views: 308191

Re: Foundation Camera Board information

As an aside, one thing that does throw a spanner in the works from an end user perspective is that it requires more memory allocated to the GPU to handle the input and encoder buffers (GPU split). I assume this is something that will "just work" for people with the experimental-ish CMA feature enab...
by Cheetah
Thu Apr 25, 2013 8:42 pm
Forum: Camera board
Topic: STICKY: Foundation (old) Camera Board information
Replies: 446
Views: 308191

Re: Foundation Camera Board information

So, a TV might be able to display HDMI in at 60fps (if your source can produce it), but I wonder if they are capable of decoding 1080p60, I assume they are. Must purely depend on the device being plugged in. Anything that can decode 3D will be able to :) Since the only way most people will be able ...
by Cheetah
Mon Apr 22, 2013 10:06 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 113846

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

Given this update, I will repeat and amplify my prior post: WANT WANT WANT WANT WANT :P On a more coherent note, the updated renders look quite nice. Also, for us USAians, do you expect to have a US wall wart as an option, and do you have a rough idea what international shipping to the USA on someth...
by Cheetah
Mon Apr 22, 2013 6:50 pm
Forum: Camera board
Topic: STICKY: Foundation (old) Camera Board information
Replies: 446
Views: 308191

Re: Foundation Camera Board information

Is this really true? I thought all H.264 encoders had at least 1/2 second or more of latency as they had to accumulate some number of frames to compare and work out the best inter-frame compression strategies. Or maybe my info is outdated, at least with MPEG2 I think you typically worked one GOP at...
by Cheetah
Tue Feb 19, 2013 11:26 pm
Forum: General programming discussion
Topic: Remote backup script
Replies: 2
Views: 998

Re: Remote backup script

The screen program is an awesome tool that, among other things, can help you with this problem. sudo apt-get install screen man screen google: unix screen The basic problem you're having, FYI, is that the rsync app on the pi is running in a terminal connected to your ssh session. When you end the se...
by Cheetah
Tue Feb 19, 2013 11:17 pm
Forum: General discussion
Topic: Using SSD to run Pi
Replies: 3
Views: 11418

Re: Using SSD to run Pi

The way the CPU on the RPi boots, you cannot get rid of the SD card entirely. However you don't need to have anything except the boot loader and the kernel on it. You can (and many do) have everything else on a USB drive of one sort or another. It is in fact quite often faster. On the other hand, yo...
by Cheetah
Tue Feb 19, 2013 11:15 pm
Forum: HATs and other add-ons
Topic: Basic automatic power supply
Replies: 16
Views: 3362

Re: Basic automatic power supply

My EE is rather basic and a bit rusty, but I'm pretty sure you need to be able to supply current to the base of the transistor, and you need something to cause the capacitor's voltage to rise slowly once the pin from the RPi stops pulling it low. So, I think you would you need a weak(!) pull-up resi...
by Cheetah
Sat Feb 09, 2013 6:31 am
Forum: Troubleshooting
Topic: Low BogoMIPS
Replies: 4
Views: 10451

Re: Low BogoMIPS

That's why it's called "BogoMips" ... because it's pretty bogus. It will give you a reasonable idea of what kind of speed up you're getting with an overclock on the same CPU, but it's useless when trying to compare one CPU against a different one, and it certainly isn't meant to measure the CPU's MHz.
by Cheetah
Sat Feb 09, 2013 6:18 am
Forum: General discussion
Topic: beware of overclocking?
Replies: 16
Views: 5586

Re: beware of overclocking?

I hit SD card stability issues with just the smallest overclock in raspi-config (800MHz). It would totally trash the filesystem, effectively replacing the contents of one file with that of another, and that often being for critical files, requiring a fresh SD card image to boot. IMO, if you're tryin...
by Cheetah
Wed Feb 06, 2013 11:20 pm
Forum: Other programming languages
Topic: Assign Bash array elements into unique predictiable variable
Replies: 4
Views: 1334

Re: Assign Bash array elements into unique predictiable vari

Why do you want to do this in the first place? If you're potentially getting hundreds of elements, assigning them to separate variables is almost guaranteed to make your life harder. It can be done, but it's almost never a good idea.
by Cheetah
Wed Feb 06, 2013 10:16 pm
Forum: General discussion
Topic: Remote control Pi desktop?
Replies: 3
Views: 925

Re: Remote control Pi desktop?

sudo apt-get install x11vnc I use this on PCs to control "native" X11 displays. It is reliable, but it can be a CPU hog, depending on what you're doing on the screen, so running it on the Pi may be slow. There used to be a vnc module for the X11 server that would hook into the display updates direct...
by Cheetah
Wed Feb 06, 2013 10:11 pm
Forum: Advanced users
Topic: Hibernate (suspend to disk)?
Replies: 4
Views: 2421

Re: Hibernate (suspend to disk)?

... In fact, it seems that no ARM arch in linux has ARCH_HIBERNATION_POSSIBLE :(
by Cheetah
Wed Feb 06, 2013 9:21 pm
Forum: Other projects
Topic: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ideas
Replies: 133
Views: 113846

Re: ModMyPi Mk.2 USB Hub, 2.5'' HDD, Patch Bay, On/Off - Ide

Want want want want :D The integrated USB hub & power in an enclosure is the big thing for me. Right now anything I do with my Pi is a rat's nest not fit to be exposed to my feline friends, this looks like it would largely solve that problem. An option for a "tall" cover for the Pi opening so that i...
by Cheetah
Wed Feb 06, 2013 12:21 pm
Forum: Advanced users
Topic: Hibernate (suspend to disk)?
Replies: 4
Views: 2421

Re: Hibernate (suspend to disk)?

My thought with hibernate was that hibernating and resuming might be faster than a shutdown and boot, for when you need to remove power temporarily for some reason. Hence why I was looking at suspend to disk instead of suspend to ram.
by Cheetah
Wed Feb 06, 2013 3:02 am
Forum: Advanced users
Topic: Hibernate (suspend to disk)?
Replies: 4
Views: 2421

Re: Hibernate (suspend to disk)?

Aah well, the "try it out" method says: doesn't work at all :(

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