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by CarlRJ
Wed Apr 26, 2017 6:24 pm
Forum: General discussion
Topic: !Linux
Replies: 2
Views: 432

Re: !Linux

Is there a way to load a stand alone program onto the RPi-3 HW without linux? I want to load a time critical exe and not have linux interrupt it. There are various systems for what is called "bare metal programming" on the Raspberry Pi, one which is often cited is Ultibo , which makes use of Free P...
by CarlRJ
Wed Apr 26, 2017 5:29 am
Forum: General discussion
Topic: Commercial Use of the Pi
Replies: 203
Views: 28207

Re: Commercial Use of the Pi

Io510k wrote:So, you're in, yes? You want to help achieve the goal of commercial Pi0w!
Do you make a living at willfully misreading clear statements from others, or is this a part-time hobby?
by CarlRJ
Tue Apr 25, 2017 9:27 pm
Forum: General discussion
Topic: Alernative ways to power a Pi
Replies: 32
Views: 5185

Re: Alernative ways to power a Pi

... These closets are designed to not have power for compliance reasons and would be a huge pain if needed. ... Why not replace the switch with a switch-and-outlet module that fits in the same space? ... Can't add an outlet? Or *won't* add an outlet? It sounds to me like you have a classic case of ...
by CarlRJ
Tue Apr 25, 2017 6:45 pm
Forum: General discussion
Topic: Will running the Pi from a USB source damage it?
Replies: 12
Views: 1894

Re: Will running the Pi from a USB source damage it?

The Pi Zero uses noticeably less power than the 3B, and costs $5. Checked it out but I'm afraid I need the wifi connectivity of the 3B for easier maintenance. Thanks for the suggestion though, I might use the zero on some other project. As others have pointed out... same points originally mentioned...
by CarlRJ
Tue Apr 25, 2017 6:02 am
Forum: General discussion
Topic: Alernative ways to power a Pi
Replies: 32
Views: 5185

Re: Alernative ways to power a Pi

OP cited $1000 to put in the needed outlets...a dozen or more, as I recall. At $70 for a battery per installation, that hits $1000 pretty fast. I got the impression the OP was quoting $1000 per closet for putting in outlets. Presumably the closets are not all in a neat row (else you'd just have one...
by CarlRJ
Mon Apr 24, 2017 9:03 pm
Forum: General discussion
Topic: Alernative ways to power a Pi
Replies: 32
Views: 5185

Re: Alernative ways to power a Pi

Random thought - how often do you have personnel visiting these closets for routine/scheduled maintenance? Would a car or truck battery (w/suitable voltage converter) run a Pi that long (with a suitable safety margin)? Take the solar cells and nine different ways of tapping into room power out of th...
by CarlRJ
Mon Apr 24, 2017 8:35 pm
Forum: General discussion
Topic: IMAP Serve
Replies: 3
Views: 585

Re: IMAP Serve

It's been a long time since I've messed with such things (on an enterprise level), but postfix is _much_ easier to set up and maintain than sendmail, and dovecot is _much_ easier to set up and maintain than cyrus. FWIW.
by CarlRJ
Mon Apr 24, 2017 8:26 pm
Forum: General discussion
Topic: which raspberry pi should I get
Replies: 7
Views: 2544

Re: which raspberry pi should I get

Size comparison image attached. That image is NOT useful for size comparisons, each board is zoomed to fit. It shows a Pi Zero being nearly as big as a B-series Pi and having about as much surface area as an A-series Pi (compare the size of the 40-pin connector holes in the Pi Zero in the bottom ro...
by CarlRJ
Mon Apr 24, 2017 7:55 pm
Forum: General discussion
Topic: Will running the Pi from a USB source damage it?
Replies: 12
Views: 1894

Re: Will running the Pi from a USB source damage it?

AFAIK it shouldnt damage the pi. However the pi may become unstable or crash, which may corrupt the data on the sd card. Plus, there's the issue of the display, proudly representing the store to customers, with an inexplicable lightning symbol in the corner. It was a good idea, but didn't pan out. ...
by CarlRJ
Mon Apr 24, 2017 7:48 pm
Forum: General discussion
Topic: Exec format error
Replies: 8
Views: 10079

Re: Exec format error

Their download page lists iOS and Android versions, which run on ARM architecture but are completely incompatible with the Raspberry Pi's hardware and Linux distributions, and they also list Linux versions, which are compiled only for Intel's x86 architecture family. Tell them you need the libraries...
by CarlRJ
Sun Apr 23, 2017 7:42 pm
Forum: General discussion
Topic: 3.5" Pitft screen settings help
Replies: 6
Views: 1377

Re: 3.5" Pitft screen settings help

Maybe I'm being too picky, but for instance some of my taskbar icons are merging with each other because of the screen resolution and the taskbar and chromium bar at the top take up so much space you can't even tell what you're looking up when going through videos on like youtube.com Anyone have an...
by CarlRJ
Fri Apr 21, 2017 7:16 pm
Forum: General discussion
Topic: ubifs faster than ext4?
Replies: 11
Views: 1853

Re: ubifs faster than ext4?

Is the ubifs faster on the RPI than the current ext4 filesystem? If you're trying this hard to make the Pi go faster (given this thread and others), I'd suggest you may be misunderstanding the intent of the Pi. Any desktop x86 PC (even several generations old) is going to blow its doors off. The Pi...
by CarlRJ
Fri Apr 21, 2017 4:41 pm
Forum: General discussion
Topic: Micro SD capacity
Replies: 15
Views: 1647

Re: Micro SD capacity

supra wrote:Don't try this on pi zero, because the pi zero used 2.0 usb.
Every Raspberry Pi ever made does most of its IO through the single USB2 interface on the SoC. The microSD slot connects to the SoC's SDIO interface, but this still won't win many races.
by CarlRJ
Fri Apr 21, 2017 4:15 pm
Forum: General discussion
Topic: Micro SD capacity
Replies: 15
Views: 1647

Re: Micro SD capacity

To expound on what Dougie said, indications are that the best microSD cards, from Samsung and SanDisk, are very popular targets for counterfeiters. If you want real cards that actually work, buy from an established store that has too much reputation to lose if they bought into a "great deal" on some...
by CarlRJ
Fri Apr 21, 2017 6:44 am
Forum: General discussion
Topic: Broken Galaxy to powerful Rasberry pi
Replies: 4
Views: 746

Re: Broken Galaxy to powerful Rasberry pi

Hey does anyone know if I can turn my old Galaxy S6 Active into a pi? Only the screen is broken A Raspberry Pi isn't a state of mind, it's a very specific combination of hardware. If your phone doesn't have that very specific set of hardware, it can't be a Raspberry Pi. It might be a small computer...
by CarlRJ
Thu Apr 20, 2017 3:06 am
Forum: General discussion
Topic: Forum search box a joke?
Replies: 17
Views: 2597

Re: Forum search box a joke?

So it looks like you all agree with me - it's not fit for purpose. There's lots of free forum software out there. Clearly the best is not being used here. "Free forum software". Yes, all it takes is an abundance of free time to make it all work (including porting in all their existing content). I w...
by CarlRJ
Wed Apr 19, 2017 9:10 pm
Forum: General discussion
Topic: Forum search box a joke?
Replies: 17
Views: 2597

Re: Forum search box a joke?

I wouldn't call it a joke - it's not something they've done to trick you for their amusement. That characterization seems a bit inflammatory. It is, however, not very effective. The frequently recommended workaround is as you described, asking Google for " your search terms site:raspberry.org ". The...
by CarlRJ
Tue Apr 18, 2017 8:15 pm
Forum: General discussion
Topic: old pi update problem
Replies: 6
Views: 1089

Re: old pi update problem

GarethD wrote:Does this mean the older pi isn't being supported anymore or is it just a problem with my setup?
Every Raspberry Pi ever made is still supported, thus far, and the latest Raspbian works a treat on them - amongst various Pi's I've got two model B's running 24/7.
by CarlRJ
Tue Apr 18, 2017 5:55 pm
Forum: General discussion
Topic: Re-formatting the SD card
Replies: 25
Views: 79467

Re: Re-formatting the SD card

If it's merely the case that the filesystems are jumbled and you want to start over, I highly recommend Etcher , as it's a one-step operation: you point it at the card (it'll probably detect it on its own) and the OS image you want to use, and it does the rest, formatting and setting up the proper p...
by CarlRJ
Mon Apr 17, 2017 9:30 pm
Forum: General discussion
Topic: microSD card max size
Replies: 16
Views: 8239

Re: microSD card max size

RichardUK wrote:
DougieLawson wrote:Switch to Raspbian and use Etcher to unzip it and write it to your SDCard
100% agree, Etcher is excellent and works on all platforms.
Well, the most popular x86 platforms, but that does cover almost all the use cases.
by CarlRJ
Mon Apr 17, 2017 12:19 am
Forum: General discussion
Topic: Future Pi Zero W Suggestion
Replies: 93
Views: 7618

Re: Future Pi Zero W Suggestion

While I know I am simply flogging the room temperature equine, I still think more people would benefit from a battery option . . . :P Another way to look at it is that the camera connector leverages a bunch of capability that's already in the SoC (it has two CSI and 2 DSI channels if I understand c...
by CarlRJ
Sun Apr 16, 2017 4:38 pm
Forum: General discussion
Topic: Future Pi Zero W Suggestion
Replies: 93
Views: 7618

Re: Future Pi Zero W Suggestion

Yes, they could manage to put out a revised Zero W with an antenna connector, if they saw sufficient justification to do so. So you are saying jamesh is wrong. NO. Now you're twisting words on purpose. Please stop that. jamesh never said it was impossible to build, he quoted the guy in charge as sa...
by CarlRJ
Sun Apr 16, 2017 3:54 pm
Forum: General discussion
Topic: Idea for RP silk screen
Replies: 18
Views: 1600

Re: Idea for RP silk screen

So it is just another fanciful utopian dream whilst sitting in your ivory tower, even at a cost of 0.005p per board it is money that could be spent on Charitable Aims and satisfy the Charities Board that money was not spent on frivilities. "Utopian dream"? "Ivory tower"? Where'd that come from? Eas...
by CarlRJ
Sun Apr 16, 2017 3:34 pm
Forum: General discussion
Topic: Future Pi Zero W Suggestion
Replies: 93
Views: 7618

Re: Future Pi Zero W Suggestion

I get the sense that having the regs pooh pooh stuff and label it as "impossible" and "not gonna happen" is part of the mystique. They want the public to consider it impossible, precisely so that when it happens, everybody can hail the conquering heroes as having done, yet again, the impossible. It...
by CarlRJ
Sun Apr 16, 2017 3:10 pm
Forum: General discussion
Topic: Future Pi Zero W Suggestion
Replies: 93
Views: 7618

Re: Future Pi Zero W Suggestion

Perfectly good reasons why antenna connector isn't going to happen. I just didn't list them because they have all been stated already. The FCC issue is the big one. There are indeed good reasons it is not likely to happen, but all I am saying is it's not "impossible" for it to happen. First we have...

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