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by W. H. Heydt
Sat Jul 20, 2019 6:43 am
Forum: General discussion
Topic: Raspberry Pi 4 USB 3.0 HUB/extension board?
Replies: 1
Views: 51

Re: Raspberry Pi 4 USB 3.0 HUB/extension board?

Pis are standalone devices. You could use a USB 3.0 hub, but I don't think there has been much in the way of testing to see which ones work and which--if any--don't. While you can cluster Pis, they don't act as "extensions" of each other. If I read your post correctly, there are no "extension" board...
by W. H. Heydt
Sat Jul 20, 2019 3:29 am
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 24
Views: 615

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

Where did you get the tribbles? That's the trouble with tribbles they're like busses, you look for hours waiting and then 1000's come at once. Yeah... Well... Apparently Shatner was allergic to the fake fur the ones used for shooting the shows were covered in. And the scene where they come pouring ...
by W. H. Heydt
Sat Jul 20, 2019 3:03 am
Forum: Beginners
Topic: need simple instructions for omxplayer install (no internet access on pi)
Replies: 4
Views: 94

Re: need simple instructions for omxplayer install (no internet access on pi)

There aren't going to be any simple instructions if the Pi doesn't have internet access. Out on the internet are where the software repositories are, so that's where you get the packages. There are ways to create a local repository (though at some point there still has to be internet access), but th...
by W. H. Heydt
Sat Jul 20, 2019 1:44 am
Forum: General discussion
Topic: I NEED HELP TO FIND A SENSOR THAT MEASURES OXYGEN
Replies: 5
Views: 138

Re: I NEED HELP TO FIND A SENSOR THAT MEASURES OXYGEN

There's one sort-of exception: you can get a cheap blood-oxygen sensor that clips on your finger, but then you need a person to attach it to :-) Some of those attach to the ear... You really don't want to be the person it's attached to when the alarm it's linked to goes off. It's not the most pleas...
by W. H. Heydt
Fri Jul 19, 2019 11:23 pm
Forum: Compute Module
Topic: File under: the gods only know why
Replies: 1
Views: 50

File under: the gods only know why

Setup: CM3L+ mounted in early model WD SATA adapter connected to a 60GB SSD. OS is a fresh load of Buster, updated and configured using a Pi3B+. Checked that the Pi3B+ will boot from the drive before mounting it in the SATA Adapter frame. Boot ends with (transcribed): [ 3.863697] ---[ end Kernel pan...
by W. H. Heydt
Fri Jul 19, 2019 10:37 pm
Forum: Beginners
Topic: rpi4b no USB power
Replies: 7
Views: 121

Re: rpi4b no USB power

trejan - A true hero :D Thanks, I really appreciate it! USB ports back up and running. It's already been an interesting first day of Pi ownership :lol: Next up on the learning experience...don't try test or beta software until you are familiar with the normal behavior of the system and how to run it.
by W. H. Heydt
Fri Jul 19, 2019 10:32 pm
Forum: General discussion
Topic: I NEED HELP TO FIND A SENSOR THAT MEASURES OXYGEN
Replies: 5
Views: 138

Re: I NEED HELP TO FIND A SENSOR THAT MEASURES OXYGEN

Welcome to the forums.

Please do not use all caps subject lines. It makes you look like you are shouting at people, and most people do not like being shouted at.
by W. H. Heydt
Fri Jul 19, 2019 7:29 pm
Forum: General discussion
Topic: Raspberry PI Web Server
Replies: 19
Views: 634

Re: Raspberry PI Web Server

I mostly use MobaXterm as an ssh client. It's not too hard to remember to type ssh -p 45678 pi@mydomain. I think Putty has a form where you enter the port number, less straightforward. PuTTY lets you set up the port number when you create config, which you can then save and use easily. As for the "...
by W. H. Heydt
Fri Jul 19, 2019 4:15 pm
Forum: Official Foundation Display
Topic: Disconnect RPi LCD Screen
Replies: 4
Views: 69

Re: Disconnect RPi LCD Screen

Raspberry Pis prior to Pi 4B could only drive one display. If the DSI connector has a connection all other monitors are disconnected. You need to remove the cable from the DSI port. Wrong on two counts. First, there is a thread in General on beta testing concurrent use of fb0 and fb1, permitting tw...
by W. H. Heydt
Fri Jul 19, 2019 6:05 am
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 24
Views: 615

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

But seriously, avoid Pi's at all costs, they breed like tribbles. Yep, and I've got quite enough of those already. Where did you get the tribbles? I've always wanted one (though not sure it's possible to have one for long). My wife gave hers to our daughter. It was one of the ones used in the origi...
by W. H. Heydt
Fri Jul 19, 2019 5:14 am
Forum: General discussion
Topic: From where should i download raspbian stretch with desktop and raspbian stretch with desktop and recommended software
Replies: 9
Views: 138

Re: From where should i download raspbian stretch with desktop and raspbian stretch with desktop and recommended softwar

From where should I download raspbian stretch with desktop and raspbian stretch with desktop and recommended software? The current release is Buster. Why are you specifically looking for Stretch? (Every new major release *will* work on all older Pis. The newest models always require the--at the tim...
by W. H. Heydt
Fri Jul 19, 2019 4:25 am
Forum: General discussion
Topic: Does 8 Gb SD card work?
Replies: 2
Views: 97

Re: Does 8 Gb SD card work?

Your problem is that NOOBS is an OS installer, so it needs more space than the underlying OS. If you do a direct install of Raspbian, it will fit easily on an 8GB card.
by W. H. Heydt
Fri Jul 19, 2019 2:49 am
Forum: General discussion
Topic: From where should i download raspbian stretch with desktop and raspbian stretch with desktop and recommended software
Replies: 9
Views: 138

Re: From where should i download raspbian stretch with desktop and raspbian stretch with desktop and recommended softwar

From where should I download raspbian stretch with desktop and raspbian stretch with desktop and recommended software? The current release is Buster. Why are you specifically looking for Stretch? (Every new major release *will* work on all older Pis. The newest models always require the--at the tim...
by W. H. Heydt
Fri Jul 19, 2019 2:01 am
Forum: Off topic discussion
Topic: 1TB microSD Card is real!
Replies: 16
Views: 445

Re: 1TB microSD Card is real!

PhatFil wrote:
Fri Jul 19, 2019 12:04 am
Still kinda cool tho..

I once got an overdraft to pay for 512kb of ram.. probably more storage in a disposable audio b'day card these days..
In 2002 when I built my dual Opteron-240 system, the 2GB of ECC RAM for it cost $500. (That was about 25% of the total system cost.)
by W. H. Heydt
Fri Jul 19, 2019 1:59 am
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 17
Views: 512

Re: Something I'd like to see.

I'd buy one. I dare say there will be a buyer of anything RPF make. But we need to consider RPF mission which is Education. RPT has mandate to provide low cost computing for RPF's mission. I'm familiar with that. Indeed, I've used that argument myself as a reason why some things are unlikely ever t...
by W. H. Heydt
Thu Jul 18, 2019 11:41 pm
Forum: General discussion
Topic: About the PoE HAT...with respect to the Pi4B
Replies: 3
Views: 137

About the PoE HAT...with respect to the Pi4B

According to the box my PoE HAT came in, its output is 2.5A. While that is enough to run a Pi4B, so long as there aren't any really power hungry peripherals, the Pi4B spec is, as we know, 3A. So...Is an upgrade to the PoE HAT to provide the full 3A intended to happen some time?
by W. H. Heydt
Thu Jul 18, 2019 4:39 pm
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 17
Views: 512

Re: Something I'd like to see.

You could question why the Trading group makes a keyboard and mouse as their are many many cabled ones out there that work. There is a feature that the RPT keyboards have that others don't. The cable isn't permanently attached. It's just a USB-A to USB-microB cable. The built in hub is something yo...
by W. H. Heydt
Thu Jul 18, 2019 4:18 pm
Forum: General discussion
Topic: Is it possible to survive only on raspberry pi 4b4?
Replies: 15
Views: 515

Re: Is it possible to survive only on raspberry pi 4b4?

My cat sleeps on top of my powerful Intel PC. She likes warmth. Sadly the Raspberry Pi is too small. I used to have a cat that liked to hang out on top of a 21" CRT monitor. He'd hook his front claws over the edge and occasionally bat at things on the screen. Since this had him on top of the coolin...
by W. H. Heydt
Thu Jul 18, 2019 4:15 pm
Forum: General discussion
Topic: Is it possible to survive only on raspberry pi 4b4?
Replies: 15
Views: 515

Re: Is it possible to survive only on raspberry pi 4b4?

If your desktop has a 1TB or greater disk drive in it, you might consider mounting that drive on your Pi 4B using a powered SATA to USB3 enclosure. I have no experience with USB3 RAID enclosures and expect they might lead to a headaches. However, if you have multiple drives, some enclosures have a ...
by W. H. Heydt
Thu Jul 18, 2019 4:11 pm
Forum: General discussion
Topic: Is it possible to survive only on raspberry pi 4b4?
Replies: 15
Views: 515

Re: Is it possible to survive only on raspberry pi 4b4?

I have been using a raspberry pi 4 B 4GB as a desktop for over a week now and have never fased any difficulties what so ever and everything is working flawlessly. This sbc is truly a desktop replacement for me. Now I am thinking to sell my old Ubuntu desktop. Also all of the programs I used on my o...
by W. H. Heydt
Thu Jul 18, 2019 5:45 am
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 17
Views: 512

Re: Something I'd like to see.

USB to SATA cables I don't see as an RPT issue. Not unless they decide all the available ones are way overpriced and decide to source an inexpensive one. As for the cable issue of just what bridge chip is used--that is, will it work for boot over USB--I have hopes that that will be solved--for the P...
by W. H. Heydt
Thu Jul 18, 2019 5:38 am
Forum: General discussion
Topic: Use SD card for memory
Replies: 6
Views: 250

Re: Use SD card for memory

Read up on "virtual memory". The inherent problem with all swapping systems is that all storage media are orders of magnitude slower than RAM (though Intel is *trying* to do something about that with Optane...but that's not something a Pi could use, anyway). And that's even before you start worrying...
by W. H. Heydt
Thu Jul 18, 2019 4:51 am
Forum: General discussion
Topic: Pi 4 PCB Defect? (fiberglass thread loose)
Replies: 15
Views: 955

Re: Pi 4 PCB Defect? (fiberglass thread loose)

I print and cut my own boards and little tags like this happen every once in a while and don't impact the function or lifespan of the product. The previously mentioned file method works, or even just take a pair of small side snips and carefully lop it off. Oh... Is that what people are calling dia...
by W. H. Heydt
Thu Jul 18, 2019 2:59 am
Forum: Off topic discussion
Topic: 1TB microSD Card is real!
Replies: 16
Views: 445

Re: 1TB microSD Card is real!

And I note that it is the--problematic--A2 class...
by W. H. Heydt
Thu Jul 18, 2019 2:36 am
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 24
Views: 615

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

Imperf3kt wrote:
Wed Jul 17, 2019 10:13 pm
Got a phone with micro usb charger? You can probably use it for your Pi3, but would have to buy an adaptor to use it with a Pi4.
Probably not. We've seen far, far too many power problems that ended up be attributable to using phone charges in lieu of an actual PSU.

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