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by W. H. Heydt
Tue Feb 20, 2018 7:26 pm
Forum: General discussion
Topic: raspberry pi foundation charity donation via facebook
Replies: 5
Views: 205

Re: raspberry pi foundation charity donation via facebook

I would be suspicious of anyone offering to pass through your donation to a charity. At the very least, they will probably take a cut for the "service". At worst it is a complete and utter scam and they'll take all of the money you "donate" for themselves, no matter who you intended it for. If you ...
by W. H. Heydt
Tue Feb 20, 2018 5:45 pm
Forum: Off topic discussion
Topic: RPi4
Replies: 20
Views: 550

Re: RPi4

Not a Pi Dev here but don't hold your breath...you will turn blue waiting. i hope it’s sometime soon As do we all, but sensible people know that "soon" is a relative term. For the Pi4B (as good a name as any), you have the statement from Eben Upton already quoted. The other thing he said on the sub...
by W. H. Heydt
Tue Feb 20, 2018 5:20 pm
Forum: General discussion
Topic: raspberry pi foundation charity donation via facebook
Replies: 5
Views: 205

Re: raspberry pi foundation charity donation via facebook

I would be suspicious of anyone offering to pass through your donation to a charity. At the very least, they will probably take a cut for the "service". At worst it is a complete and utter scam and they'll take all of the money you "donate" for themselves, no matter who you intended it for. If you d...
by W. H. Heydt
Thu Feb 15, 2018 5:46 am
Forum: Off topic discussion
Topic: Secure reformat of memory cards
Replies: 6
Views: 228

Re: Secure reformat of memory cards

I know of one company that decided HDDs were sufficiently securely erased by laying them out in the yard and bringing over a crane with a 50-ton electromagnetic crane, lowering the hook over the drives and turning it on. Of course, the way to be really sure in the melt them down...
by W. H. Heydt
Wed Feb 14, 2018 3:14 pm
Forum: General discussion
Topic: Can I desolder the micro USB port in the pi zero and replace with usb c
Replies: 10
Views: 330

Re: Can I desolder the micro USB port in the pi zero and replace with usb c

Without the extra connections, the OP would lose the ability to plug in his cable without regard to orientation...a major selling point of USB-C. So while it may be physically possible to make the change, it is in some ways counterproductive.
by W. H. Heydt
Tue Feb 13, 2018 3:52 pm
Forum: Beginners
Topic: unassembled pi3
Replies: 22
Views: 647

Re: unassembled pi3

And yeah, if such an unpopulated Pi3b was available (in single units), I'd definitely buy at least one, whetherr that be a Pi without the Ethernet port and slim USB ports, or no Ethernet port / no USB at all, either option interests me. Well...if you think a Pi3B with only a single USB port would b...
by W. H. Heydt
Tue Feb 13, 2018 6:39 am
Forum: General discussion
Topic: login to running job?
Replies: 2
Views: 148

Re: login to running job?

You can also put a job in the background and later bring it to the foreground. Run the command "man fg" to find out more.
by W. H. Heydt
Tue Feb 13, 2018 12:59 am
Forum: General discussion
Topic: Alternative to LibreOffice
Replies: 3
Views: 605

Re: Alternative to LibreOffice

What does MS Office have in it that LibreOffice doesn't (that you need)?
by W. H. Heydt
Mon Feb 12, 2018 5:39 pm
Forum: General discussion
Topic: Soldering Pi Zero W GPIO Pins
Replies: 12
Views: 323

Re: Soldering Pi Zero W GPIO Pins

I have a Pi0 on which I quite deliberately only soldered in 5 GPIO pins. It is just enough to connect an RTC. On the other hand, if one does not wish to test ones soldering skills on a Pi0W, one can buy a Pi0WH with the header already in place.
by W. H. Heydt
Mon Feb 12, 2018 3:40 pm
Forum: Off topic discussion
Topic: It *has* to happen!
Replies: 28
Views: 1142

Re: It *has* to happen!

It only matters when you have two on the same router. MAC addresses are local only. It really depends on how big a LAN segment you have (10.0.0.0/8, anyone?) and how many Pis are there. Of course, I didn't say that any one person or project was sure to have collisions, just that by now, there *must...
by W. H. Heydt
Mon Feb 12, 2018 3:37 pm
Forum: Off topic discussion
Topic: It *has* to happen!
Replies: 28
Views: 1142

Re: It *has* to happen!

Imperf3kt wrote:
Mon Feb 12, 2018 10:02 am
I do wonder what happens at 03:14:07 UTC on Tuesday, 19 January 2038 though.
Or (though it won't really apply to me, or even to a Pi) the year 10000 problem.
I have a plastic badge that says...

COBOL Programmer
The Y10K Project

I had it made shortly after Y2K.
by W. H. Heydt
Mon Feb 12, 2018 3:33 pm
Forum: Beginners
Topic: unassembled pi3
Replies: 22
Views: 647

Re: unassembled pi3

tony1812 wrote:
Mon Feb 12, 2018 11:04 am
( Plus in this age, who use wired Ethernet?)
Them's fightin' words.
by W. H. Heydt
Mon Feb 12, 2018 4:46 am
Forum: Off topic discussion
Topic: It *has* to happen!
Replies: 28
Views: 1142

It *has* to happen!

In a thread in the Compute Module Forum (which I suspect most people don't read), PhilE said, in part: Just be aware of the possibility of a collision with another Pi - 16 million addresses is not that many to choose from, and they are assigned to Pis effectively randomly. Now given that Pi sales ar...
by W. H. Heydt
Mon Feb 12, 2018 4:42 am
Forum: Compute Module
Topic: CM with LAN chip - use RPi Foundation OUI
Replies: 2
Views: 285

Re: CM with LAN chip - use RPi Foundation OUI

Just be aware of the possibility of a collision with another Pi - 16 million addresses is not that many to choose from, and they are assigned to Pis effectively randomly. Interesting point....Pi production is past the point where there *must* be address collisions between Pis, as there are more tha...
by W. H. Heydt
Mon Feb 12, 2018 4:35 am
Forum: Beginners
Topic: unassembled pi3
Replies: 22
Views: 647

Re: unassembled pi3

The other alternative is a CM3 /CM3L But you'll need to buy additional parts that you'll need to design and order yourself. Its not recommended for beginners or even intermediate users. Well....The CM3 and CM3L aren't *that* hard to use. Unless you're going to design your own carrier board, finding...
by W. H. Heydt
Mon Feb 12, 2018 4:29 am
Forum: Beginners
Topic: Pi zero camera module on pi 3
Replies: 2
Views: 103

Re: Pi zero camera module on pi 3

The Pi camera modules are the same for all Pis. The only thing special about the Pi0/Pi0W module is the cable, as those Pis have a smaller connector than other Pis. If you have a camera module with a Pi0 cable, just get a standard cable and you're good to go. I will note that they are usually sold t...
by W. H. Heydt
Mon Feb 12, 2018 2:49 am
Forum: General discussion
Topic: phone calls
Replies: 4
Views: 238

Re: phone calls

Should be possible. The "term of art" you want to search on is "VOIP" (Voice Over Internet Protocol). It's how the combined Internet/TV/Phone packages work. It's also how thing like Skype and Zoom operate.
by W. H. Heydt
Sun Feb 11, 2018 5:59 am
Forum: Beginners
Topic: Reducing stress on the Raspbeery pi CPU
Replies: 5
Views: 291

Re: Reducing stress on the Raspbeery pi CPU

Important to know the architecture of the Pi, its has CPUs (type and number dependent on model) and a GPU called the VC4. They are separate blocks in the silicon and are very different devices. The CPUs handle Linux, the GPU does graphics processing (display, graphics [OpenGLES, OpenVG, OpenMAX], c...
by W. H. Heydt
Sat Feb 10, 2018 11:33 pm
Forum: General discussion
Topic: Broken Pi
Replies: 3
Views: 187

Re: Broken Pi

The card should be in all the way. You might be able to slip something in as a shim to hold it in place. If you're really good at fine soldering work, you might be able to replace the card holder. Or, of course, you could get another Pi. And--FYI--SD cards are not "hot swap" in Pis unless it is new ...
by W. H. Heydt
Fri Feb 09, 2018 8:23 pm
Forum: General discussion
Topic: Awesome Projects
Replies: 17
Views: 895

Re: Awesome Projects

Designing, building, mass producing, and selling 18 million Raspberry Pis. What could be a more awesome tech project than that?
by W. H. Heydt
Fri Feb 09, 2018 3:51 pm
Forum: Beginners
Topic: Creating and editing a cron file for root user
Replies: 3
Views: 131

Re: Creating and editing a cron file for root user

Starting GUI programs at boot you probably should not be using cron as all programs started using cron run in the background with no output to the screen. Just because a program is running in the background doesn't mean that it can't send anything to the screen. Here's an example of a shell script ...
by W. H. Heydt
Thu Feb 08, 2018 10:56 pm
Forum: Beginners
Topic: raspbian jesse vs raspbian stretch
Replies: 6
Views: 310

Re: raspbian jesse vs raspbian stretch

Jessie and Stretch are the two most recent major release of Debian Linux. Raspbian is a specially set up version of Debian. Raspbian Stretch was released last summer. So...really the difference is one of keeping up to date. Eventually, Jessie will become unsupported. (So will Stretch, of course, but...
by W. H. Heydt
Wed Feb 07, 2018 5:32 pm
Forum: Beginners
Topic: Booting and OS
Replies: 14
Views: 477

Re: Booting and OS

NOOBS is not really an OS, its a tool that allow you to install one ( or more ) different OS on your SD card. Raspbian is one of those OSs. NOOBS are slightly easier for a total beginner and will allow you to install multiple OSs to test. Well... Maybe... Given the number of posters that have vario...
by W. H. Heydt
Wed Feb 07, 2018 5:21 pm
Forum: General discussion
Topic: is it possible to do ?
Replies: 3
Views: 212

Re: is it possible to do ?

Possible? Almost certainly. The first thing to deal with is that the Pi has no audio input, so you'll have to either use a USB mic or get clever with external circuits.
by W. H. Heydt
Wed Feb 07, 2018 5:19 pm
Forum: General discussion
Topic: Python script with cron not working
Replies: 5
Views: 192

Re: Python script with cron not working

The basic assumption that should applied whenever you are writing something to be run by cron is that *no* environment variables are set, especially PATH. You can either use absolute paths for everything, or wrap it all up in a shell script that includes setting any paths that are going to be needed.

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