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by W. H. Heydt
Sat Mar 23, 2019 1:47 am
Forum: General discussion
Topic: Sterilization of Pi
Replies: 11
Views: 319

Re: Sterilization of Pi

NGC6543 wrote:
Sat Mar 23, 2019 12:51 am
If you're using ethylene oxide (that's the usual suspect), you should be using a process to ensure a non-explosive environment in the chamber.
Interesting...I associate Ethylene Oxide with G. Harry Stine's writing about it as a rocket monopropellant.
by W. H. Heydt
Fri Mar 22, 2019 10:18 pm
Forum: Beginners
Topic: Move from RPi2 to RPi3 ArmV8...
Replies: 9
Views: 170

Re: Move from RPi2 to RPi3 ArmV8...

Also bear in mind that the Pi2B went through a version change (from v1.1 to v1.2) that upgraded the SoC from the BCM2836 to the BCM2837. The later (A0 stepping) is also used on the Pi3B and the B0 stepping is used on the Pi3B+. Granted, the Pi2Bv1.2 still defaults to 900MHz, but with the CPU core ch...
by W. H. Heydt
Fri Mar 22, 2019 9:58 pm
Forum: General discussion
Topic: Higher megapixel camera module?
Replies: 5
Views: 138

Re: Higher megapixel camera module?

pi4b wrote:
Fri Mar 22, 2019 8:28 pm
I'm curious if anyone knows of a better camera module than the current 8MP unit.
While it is fine for hobby purposes like robotics and AI, it might also be nice to have one that is OK for basic small-sensor photography.
For this, more megapixels would be needed.
"Needed" or just desired?
by W. H. Heydt
Fri Mar 22, 2019 9:57 pm
Forum: General discussion
Topic: Headless Pi 3A+ questions
Replies: 15
Views: 312

Re: Headless Pi 3A+ questions

You should of bought a Raspberry Pi 2B v1.2 I wonder when those will get the newer SoC? https://www.raspberrypi.org/forums/viewtopic.php?p=1438879 I'm also wondering about that. I cant' see any reason why it wouldn't happen as it makes a lot of sense from manufacturing and inventory considerations.
by W. H. Heydt
Wed Mar 20, 2019 5:47 pm
Forum: Windows 10 for IoT
Topic: 10 Pi Devices - all have same MAC Address
Replies: 9
Views: 202

Re: 10 Pi Devices - all have same MAC Address

Technically you could have machines with the same MAC but it’s just about statistically impossible (unless the manufacturing side had a big glitch)... Two with the same (hardware) MAC address is unlikely in such a small order, but certainly not beyond credibility. Having 5 with the same MAC address...
by W. H. Heydt
Wed Mar 20, 2019 1:34 pm
Forum: General discussion
Topic: Pi password pwned...
Replies: 7
Views: 236

Re: Pi password pwned...

Ever since the atomic bomb research at Los Alamos where Richard Feynman was unlocking safes whose combinations were the digits of Pi it has been known that this is a bad idea. A couple of minor corrections...that incident was--according to his autobiography--some time after the war. While he *says*...
by W. H. Heydt
Wed Mar 20, 2019 4:47 am
Forum: General discussion
Topic: Headless Pi 3A+ questions
Replies: 15
Views: 312

Re: Headless Pi 3A+ questions

Just curious, if I want to start up the 3A+ in such a way as to conserve power, is it possible to add some setting in the FAT partition to have the video card and BLE powered off? Bear in mind that on all Pis to date, it's the VC4 (graphics core) that boots *first*. The VC4 will shut down any block...
by W. H. Heydt
Wed Mar 20, 2019 4:46 am
Forum: General discussion
Topic: Headless Pi 3A+ questions
Replies: 15
Views: 312

Re: Headless Pi 3A+ questions

1. As I understand it, if I mount the Raspbian microSD on a Mac, I will see a FAT partition where I can edit a text file containing Wifi router name and password, so that I can subsequently have the 3A+ connect to Wifi automatically when it boots up. Is that correct? That is essential for ssh'ing i...
by W. H. Heydt
Wed Mar 20, 2019 1:35 am
Forum: Troubleshooting
Topic: Is there a way to fsck run on boot if there is an unclean shutdown.
Replies: 7
Views: 147

Re: Is there a way to fsck run on boot if there is an unclean shutdown.

rpdom wrote:
Wed Mar 20, 2019 1:05 am
That should happen automatically. It is part of the boot sequence. It may be so quick that you don't notice it.
Yup. Use larger capacity storage media (e.g. 314GB PiDrive) and it takes long enough to notice.
by W. H. Heydt
Mon Mar 18, 2019 11:02 pm
Forum: General discussion
Topic: Raspberry Pi Zero W for moderate volume applications
Replies: 21
Views: 630

Re: Raspberry Pi Zero W for moderate volume applications

- Definitely looking forward to a compute module with WiFi. Fruitoftheloom got it right...the whole idea of the CM series is a *module* and intended for embedded designs. It exposes every interface the SoC has on a convenient edge connector and leaves it up to overall system designer what to make a...
by W. H. Heydt
Mon Mar 18, 2019 8:29 pm
Forum: General discussion
Topic: alarm-clock pi
Replies: 6
Views: 160

Re: alarm-clock pi

theres no reason to not leave the pi on, i thought it might be more damaging to the pi if it stays on 24/7 365.. More damaging that what? By and large, with things like the Pi, the biggest stresses on the hardware are from turning it on and off. If anything, so long as you have a properly protectiv...
by W. H. Heydt
Mon Mar 18, 2019 4:10 pm
Forum: General discussion
Topic: Smallest NTSC/PAL display?
Replies: 5
Views: 141

Re: Smallest NTSC/PAL display?

JasMich.de wrote:
Mon Mar 18, 2019 3:24 pm
Yes, I know the usually used video glass from https://www.adafruit.com/product/1452 but I don't want to spend 10.000 rupees for this project.
You can't use that item anyway. It's marked as discontinued.
by W. H. Heydt
Mon Mar 18, 2019 2:07 pm
Forum: General discussion
Topic: alarm-clock pi
Replies: 6
Views: 160

Re: alarm-clock pi

You don't actually need a sound card, though one (of my two) alarm clock Pis does have one. You can accomplish what you want using shell scripts and cron entries, except for the boot at a set time. That will take something external, probably an Arduino or similar MC. I believe the mopower UPS has th...
by W. H. Heydt
Sun Mar 17, 2019 8:27 pm
Forum: General discussion
Topic: Raspberry Pi Zero W for moderate volume applications
Replies: 21
Views: 630

Re: Raspberry Pi Zero W for moderate volume applications

I dare say that some enterprising company could do a "bulk" buy (i.e >= 500 at a time) and either package the Pi0 or Pi0W boards in 5-packs or 6-packs...or as used to be suggested, 10-packs, or request that they be delivered that way, then sell them on with whatever markup they wanted to apply. Exc...
by W. H. Heydt
Sun Mar 17, 2019 5:00 pm
Forum: General discussion
Topic: Raspberry Pi Zero W for moderate volume applications
Replies: 21
Views: 630

Re: Raspberry Pi Zero W for moderate volume applications

Actually, I was just referring to a more than one price policy (let dealers sell more than one at a higher price, like MicroCenter somehow does). Or how about a multi-pack? Say a 5-pack of Zero W for around $65. That would offer some extra profit, but still be cheaper than paying shipping for each ...
by W. H. Heydt
Sun Mar 17, 2019 4:07 pm
Forum: General discussion
Topic: LX Terminal Not Working
Replies: 1
Views: 52

Re: LX Terminal Not Working

Try doing a "ctrl-C" when the script fails.
by W. H. Heydt
Sun Mar 17, 2019 4:57 am
Forum: Beginners
Topic: Rasbian, retropie on to one card and questions about raspberry pi zero w
Replies: 8
Views: 223

Re: Rasbian, retropie on to one card and questions about raspberry pi zero w

EDIT: I just want to boot a webpage that is all off of raspbian. I'm not exactly sure how to do it. Web pages are run in web browsers. You don't "boot" a web browser. It's just a program that runs under the control of an operating system (OS). "Boot" is short for "boot strap" and is based on the id...
by W. H. Heydt
Sun Mar 17, 2019 4:32 am
Forum: General discussion
Topic: Raspberry Pi Zero W for moderate volume applications
Replies: 21
Views: 630

Re: Raspberry Pi Zero W for moderate volume applications

Last time I checked (and I'll admit it's been a while), companies were NOT permitting you to order one of each. And some are enforcing the one-per-customer (ever) limit, but not all. For example, Adafruit, who won't sell you more than one WH per order, will let you order one of each model (Pi Zero ...
by W. H. Heydt
Sun Mar 17, 2019 3:21 am
Forum: General discussion
Topic: Zero clusters? Pi day deals
Replies: 15
Views: 461

Re: Zero clusters? Pi day deals

energyi wrote:
Sun Mar 17, 2019 2:02 am
Is a video wall of multiple HDMI frameless monitors an application for a cluster of pi zeros?
It was done in the early days of the Pi (hunt back through the blog entries, it was written up there) so Pi0s should be able to do that.
by W. H. Heydt
Sat Mar 16, 2019 11:59 pm
Forum: Off topic discussion
Topic: Worried, Whatever-Speed
Replies: 57
Views: 1237

Re: Worried, Whatever-Speed

Coming from the land of the 24-bit mainframe, smaller has always been better (with S/370 assembler you could address 4K with a general purpose base register, beyond 4K was a pain - code came out small). Well... Not THAT much of a pain. Need I tell you about the banking main posting program I had to...
by W. H. Heydt
Sat Mar 16, 2019 11:50 pm
Forum: Troubleshooting
Topic: 32 gigabyte memory card removing partition plz help
Replies: 4
Views: 111

Re: 32 gigabyte memory card removing partition plz help

For the OP... It would help if you could give a more complete description of what you have now and what you want to do. It *sounds* like you have a card with NOOBS to which you have installed one (or more) OS images. If that's the case, you are stuck with what you have unless you want to start over ...
by W. H. Heydt
Sat Mar 16, 2019 11:42 pm
Forum: General discussion
Topic: Raspberry Pi Zero W for moderate volume applications
Replies: 21
Views: 630

Re: Raspberry Pi Zero W for moderate volume applications

There is a way to sneak around the restriction if you only need a few. You should be able to buy a Pi Zero, Pi Zero W and a Pi Zero WH all in one order. Other than that, you need to find a dealer that doesn't restrict the WH model, which would NOT be Adafruit. Last time I checked (and I'll admit it...
by W. H. Heydt
Sat Mar 16, 2019 10:08 pm
Forum: General discussion
Topic: design of a generic raspberry pi 3 form factor open source notebook cabinet?
Replies: 18
Views: 514

Re: design of a generic raspberry pi 3 form factor open source notebook cabinet?

As someone above has noted, its very unusual for a suggestion on here to have not already been thought of by the trading team. We all have fairly good imaginations! Having met Eben Upton, I would be very surprised if anyone commenting here could come up with an idea for something that he *hasn't* a...
by W. H. Heydt
Sat Mar 16, 2019 8:23 pm
Forum: General discussion
Topic: design of a generic raspberry pi 3 form factor open source notebook cabinet?
Replies: 18
Views: 514

Re: design of a generic raspberry pi 3 form factor open source notebook cabinet?

The RPF and RPT are well known for not revealing any plans in advance so I would expect the best you could expect is; "it's something we might think about". Based on my experience reading the forums for on-line games, I'd advise not to say that much. Whenever game developers make a statement like t...
by W. H. Heydt
Sat Mar 16, 2019 6:15 pm
Forum: General discussion
Topic: design of a generic raspberry pi 3 form factor open source notebook cabinet?
Replies: 18
Views: 514

Re: design of a generic raspberry pi 3 form factor open source notebook cabinet?

Such a design would do better to use the Compute Module. I do not agree. There are many more raspberry pi 3 form factor soc computers than core board form factor soc computers. Core board form factor computers appears to be more expensive. I am not sure the ports of core board form factor soc compu...

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