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by W. H. Heydt
Thu Aug 16, 2018 7:12 pm
Forum: General discussion
Topic: Help identifying a Rpi?
Replies: 20
Views: 413

Re: Help identifying a Rpi?

I do like the idea though of running emulation through my Pi I just would want a way to dual boot to the emulators or my Kodi on start of the system. You could either run the simulators from the same SD card or shut down and swap SD cards to run your Pi differently. The other route is to use an OS ...
by W. H. Heydt
Thu Aug 16, 2018 5:28 pm
Forum: Off topic discussion
Topic: Nomenclature of the Future
Replies: 9
Views: 223

Re: Nomenclature of the Future

jamesh wrote:
Thu Aug 16, 2018 11:09 am
To be honest it seems unlikely that there will be a Pi4 without wireless.
Not even as an "upgraded" "Pi2B to reduce the number of different SoCs that need to be made (the very reason that a Pi2Bv1.2 is really a Pi3B variant)?
by W. H. Heydt
Thu Aug 16, 2018 5:24 pm
Forum: Off topic discussion
Topic: With software, there's always a better way to do it
Replies: 21
Views: 399

Re: With software, there's always a better way to do it

Some of it does ship in products and once I'm gone it may never get touched again. Then again, most software doesn't have a very long shelf life anyway and will be replaced in the near future. Sounds like famous last words. As for that last point...that varies all over the map. One program I wrote ...
by W. H. Heydt
Thu Aug 16, 2018 5:21 pm
Forum: Off topic discussion
Topic: With software, there's always a better way to do it
Replies: 21
Views: 399

Re: With software, there's always a better way to do it

2) Most of the optimization work I've done on open source code is not modifying the original code, but tossing it out and starting from a clean slate to replace it. I have made changes to FOSS code that ships in products and the project management team understands the GPL implications. I asked abou...
by W. H. Heydt
Thu Aug 16, 2018 3:55 pm
Forum: Off topic discussion
Topic: With software, there's always a better way to do it
Replies: 21
Views: 399

Re: With software, there's always a better way to do it

"Optimization" to programming is rather like "efficiency" to engineering. It depends on what you want to "effish". Pure optimization may or may not be good, depending on context. Can the resultant code be maintained, and--especially--maintained by mere mortals, rather than requiring your god-like se...
by W. H. Heydt
Thu Aug 16, 2018 4:53 am
Forum: Off topic discussion
Topic: Nomenclature of the Future
Replies: 9
Views: 223

Re: Nomenclature of the Future

I surmise that I was unclear...

It is not speculation on what the naming convention might be. It is a suggestion for what the naming convention should be.
by W. H. Heydt
Thu Aug 16, 2018 3:35 am
Forum: Off topic discussion
Topic: Nomenclature of the Future
Replies: 9
Views: 223

Nomenclature of the Future

(If anyone is looking to speculate on features in future Pis...this is NOT the thread you're looking for.) I've been mulling over putting up a thread to make the case for a Pi2B+/Pi2Bv1.3. Part of the problem is that the Pi2Bv1.2 is really a slowed down wireless Pi3B and a Pi2B+/Pi2Bv1.3 would be a ...
by W. H. Heydt
Wed Aug 15, 2018 11:05 pm
Forum: General discussion
Topic: Help identifying a Rpi?
Replies: 20
Views: 413

Re: Help identifying a Rpi?

Imperf3kt wrote:
Wed Aug 15, 2018 10:35 pm
If your friend can open the case, it is printed on the underside of the board.
Try...the top of the board, right next the GPIO header pins.
by W. H. Heydt
Wed Aug 15, 2018 11:02 pm
Forum: General discussion
Topic: Display options for the Pi 3
Replies: 6
Views: 142

Re: Display options for the Pi 3

(doesn't ship to my country otherwise was perfect). If you fill in and enable your location (country, at the very least) it will be far easier for people to suggest suppliers. I am looking at a more DIY thing so that we can use a bunch of different sized OEM screens. These OEM smartphone screens ar...
by W. H. Heydt
Wed Aug 15, 2018 4:18 pm
Forum: Off topic discussion
Topic: Good news.... Well, maybe...
Replies: 9
Views: 388

Re: Good news.... Well, maybe...

Can you think of *any* feature--and, particulary, I/O feature--that has ever been removed from a Pi? P5 - the pcm audio interface, appeared on Pi 1 rev 2, disappeared on B+ But analog audio out persisted, combined with the TRRS jack with the analog video. So the *functional* feature is retained.
by W. H. Heydt
Wed Aug 15, 2018 4:15 pm
Forum: Beginners
Topic: Power rpi with 2 ports from usb hub
Replies: 4
Views: 110

Re: Power rpi with 2 ports from usb hub

hippy wrote:
Wed Aug 15, 2018 10:49 am
In theory; yes. That was how things were sometimes done with older USB HDD when they required more current than a single USB port could supply.
I have a USB 2.0 CD/DVD drive/CD burner that works that way. It would probably run fine with a single connection if you aren't writing a CD.
by W. H. Heydt
Wed Aug 15, 2018 4:03 am
Forum: Off topic discussion
Topic: Good news.... Well, maybe...
Replies: 9
Views: 388

Re: Good news.... Well, maybe...

A good example of this can be seen in the SD and uSD cards the Pi uses. 16MB cards are impossible to find (except in my drawer of unused electronic junk) and anything less than 8GB is no longer manufactured due to the costs involved vs sales making their manufacture less than economical. Are you su...
by W. H. Heydt
Wed Aug 15, 2018 3:58 am
Forum: General discussion
Topic: Can I use USB OTG with a network share?
Replies: 4
Views: 130

Re: Can I use USB OTG with a network share?

No Pi board that incorporates a LAN chip can be a client device. The LAN chip is set to be a USB master only. All B-series Pi (B, B+, Pi2B (both versions), Pi3B, Pi3B+) have a LAN chip. Only boards with the SoC USB port directly accessible (Pi0, Pi0W, A, A+) can be USB client devices. Only boards wi...
by W. H. Heydt
Wed Aug 15, 2018 2:36 am
Forum: Beginners
Topic: How much server in a raspberry
Replies: 4
Views: 119

Re: How much server in a raspberry

What a great and clear response, thank you so much!!! I have a last questions. How can I now the SoC from my raspberry? I bought this one: https://www.amazon.fr/gp/product/B00STVN0K4/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 You can only guess from that link. If you mouse over the image of the PCB...
by W. H. Heydt
Wed Aug 15, 2018 12:45 am
Forum: Beginners
Topic: How much server in a raspberry
Replies: 4
Views: 119

Re: How much server in a raspberry

Well...you certainly won't damage the Pi by using "too much memory" or running too many programs. Things will just get slower, for a variety of reasons. One consideration here is which version of the Pi2B you have as the SoC was changed between the Pi2Bv1.1 and the Pi2Bv1.2, with the later being abo...
by W. H. Heydt
Tue Aug 14, 2018 11:12 pm
Forum: Off topic discussion
Topic: Good news.... Well, maybe...
Replies: 9
Views: 388

Re: Good news.... Well, maybe...

...where could they put it? Simple - take away the micro SDHC card slot & put it underneath.... ;) (We can dream........) Sounds more like a nightmare to me. Can you think of *any* feature--and, particulary, I/O feature--that has ever been removed from a Pi? (Not counting a completely new design th...
by W. H. Heydt
Tue Aug 14, 2018 4:39 pm
Forum: Off topic discussion
Topic: Good news.... Well, maybe...
Replies: 9
Views: 388

Re: Good news.... Well, maybe...

That'd be nice - 4GB ram & a big internal mSATA. :D Prices would have to *really* crash for it to be good economics to put 4GB DRAM on a Pi (and, let me add, it wouldn't be possible for any Pi prior to the Pi4, and maybe not even then). 2GB, should the next SoC support it is far, far more likely. H...
by W. H. Heydt
Tue Aug 14, 2018 4:28 pm
Forum: General discussion
Topic: Can I connect my raspberry Pi to my laptop to increase performance?
Replies: 12
Views: 329

Re: Can I connect my raspberry Pi to my laptop to increase performance?

Totally ludicrous idea, the RPi is a Small Board Computer, not an add-on. It's not totally ludicrous. The Pi is both a small computer in its own right and an add-on, particularly when used as a USB gadget, or even networked. Going to be a real problem trying to get a Pi3B+ to run in gadget mode. A ...
by W. H. Heydt
Tue Aug 14, 2018 4:24 pm
Forum: General discussion
Topic: Can I connect my raspberry Pi to my laptop to increase performance?
Replies: 12
Views: 329

Re: Can I connect my raspberry Pi to my laptop to increase performance?

The Pi (unless a 3B+) will probably not boot without a uSD card. The Pi3B and Pi2Bv1.2 (and the CM3/CM3L, for that matter) can have the OTP bit set to permit booting from a USB connected mass storage device. The difference with the Pi3B+ is that it can be done "out of the box", as the bit is set at...
by W. H. Heydt
Tue Aug 14, 2018 6:10 am
Forum: General discussion
Topic: pi zero w in quantities of 10...50
Replies: 72
Views: 7263

Re: pi zero w in quantities of 10...50

Fyi, it is still 1 per customer. Use a different vendor. That doesn't solve the problem, it merely ignores it. Its like using deodorant to mask the smell of something bad. Or, for a Pi related analogy, its like disabling the low voltage indicator instead of fixing the power supply. If the agreement...
by W. H. Heydt
Tue Aug 14, 2018 4:48 am
Forum: General discussion
Topic: How does the forum search work?
Replies: 18
Views: 460

Re: How does the forum search work?

... but what order are they in? One of the unsung characteristics of relational databases is that you cannot predict the order of the rows returned unless you specify an order. I have seen experienced programmers get tripped up over this. I would not expect a search engine to sort items in any sort...
by W. H. Heydt
Tue Aug 14, 2018 3:55 am
Forum: General discussion
Topic: pi zero w in quantities of 10...50
Replies: 72
Views: 7263

Re: pi zero w in quantities of 10...50

mikronauts wrote:
Tue Aug 14, 2018 2:11 am
Fyi, it is still 1 per customer.

Too bad, I designed a really nice smt robot controller board for the 0w months ago same size as the 0), but with restricted 0w sales it is not viable to take to production.
Use a different vendor.
by W. H. Heydt
Tue Aug 14, 2018 3:53 am
Forum: General discussion
Topic: Can I connect my raspberry Pi to my laptop to increase performance?
Replies: 12
Views: 329

Re: Can I connect my raspberry Pi to my laptop to increase performance?

Think about this very carefully... Connecting a Pi without an SD card to your laptop is the very same thing as connecting a second laptop that doesn't have a disk drive (either SSD or HDD) in it. How do you think that would work? Do you think that two laptops 9one without a way to boot) would be fas...
by W. H. Heydt
Mon Aug 13, 2018 5:19 pm
Forum: Off topic discussion
Topic: Good news.... Well, maybe...
Replies: 9
Views: 388

Good news.... Well, maybe...

This article https://www.theregister.co.uk/2018/08/13/flash_price_crash_coming_round_the_oversupplied_block/ is worth a read. Analysts are predicting a price crash in flash memory from about $0.30 per GB to around $0.08 per GB. Some also think that as flash prices drop, some of the capacity will shi...
by W. H. Heydt
Mon Aug 13, 2018 4:56 pm
Forum: Python
Topic: Cron job not running
Replies: 2
Views: 74

Re: Cron job not running

also as cron runs programs in the background you will see no output from your program, if you want your program to display data on the screen then cron is not the way to do it. That is not actually true. You *can* have a cron job output to the screen. You just need to set it up in your script. Here...

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