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by W. H. Heydt
Tue Jul 09, 2019 5:59 am
Forum: General discussion
Topic: [SOLVED] Use raspberry PI 4 as a desktop?
Replies: 5
Views: 388

Re: Use raspberry PI 4 as a desktop?

There are a couple of extensive threads active at the moment on this topic. The Pi4B is 2-3 times faster than the Pi3B, mostly because it is using more capable CPU cores (the clock speed is almost the same as the Pi3B+). Probably more important for what your son is doing, you can get the Pi4B with 2...
by W. H. Heydt
Tue Jul 09, 2019 3:22 am
Forum: General discussion
Topic: Underclocking and the RPi 4B?
Replies: 32
Views: 1298

Re: Underclocking and the RPi 4B?

How certain are you that it was the ambient temperature that kill the Pi3B? I recall at least one person in Australia testing a Pi by running in an attic that reached to or near 140F. The Pi ran just fine. Granted, that was a few years ago, so not a Pi3B(+), but it still seems odd that a temperature...
by W. H. Heydt
Tue Jul 09, 2019 12:57 am
Forum: Off topic discussion
Topic: RIP 32 BIT
Replies: 223
Views: 6443

Re: RIP 32 BIT

That is exactly the kind of thinking that is the source of the problem. That is why we have Linux Distros that consume over 20MB of RAM when booted to the Desktop Environment, that is a lot of memory that could be used by multiple other applications. That is why we have programs that take over 4 se...
by W. H. Heydt
Tue Jul 09, 2019 12:45 am
Forum: General discussion
Topic: Heatsinks official for rpi 4 ?
Replies: 43
Views: 3117

Re: Heatsinks official for rpi 4 ?

If size isn't an issue but absolute performance is then this active solution would take some beating.. https://www.seeedstudio.com/ICE-Tower-CPU-Cooling-Fan-for-Raspberry-pi-Support-Pi-4-p-4097.html I think it's safe to say this isn't compatible with the official Pi 4 case! That one has the advanta...
by W. H. Heydt
Mon Jul 08, 2019 10:03 pm
Forum: General discussion
Topic: Starting up
Replies: 14
Views: 434

Re: Starting up

If, as you say, it is indeed the fit between the SD card and the PC board, sometimes a small piece of transparent tape on the side of the SD opposite the contacts is the fix. This has happened on one of my older uSD cards. If you use the tape, take care not to overlap the edges, allowing the tape t...
by W. H. Heydt
Mon Jul 08, 2019 7:37 pm
Forum: Off topic discussion
Topic: Custom RPi board from scratch
Replies: 5
Views: 456

Re: Custom RPi board from scratch

Hmmm... No further response from the OP. Not even an "Oops". Drive by? Troll practice?
by W. H. Heydt
Mon Jul 08, 2019 7:34 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

I don't think it was very long ago that the CM3 was released? Might be a while before a CM4 shows up. I just went by what I could find. ;) CM3 was a while ago. The recent (this year) release is the CM3+ series. The CM3+ finally broke past 4GB eMMC. In fact, there is no 4GB CM3+. They start at 8GB a...
by W. H. Heydt
Mon Jul 08, 2019 7:31 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

I hope that ARM continues on for the foreseeable future. Though if they do fail at some point in the future I hope they will have the foresight to make sure there IP remains available to all chip makers for ever more, so that it can still evolve. Patents expire. Trade secrets are lost if not active...
by W. H. Heydt
Mon Jul 08, 2019 7:30 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

Anyway, isn't a clock made from vacuum tubes and Nixies mixing up different era's of electronics. I have seen a lot of gear built from discrete transistors or TTL that used Nixie tubes but not valve equipment. Displays in the vacuum tube days were neon lamps and decatrons. Since Nixies *are* vacuum...
by W. H. Heydt
Mon Jul 08, 2019 7:21 pm
Forum: General discussion
Topic: USB 3 powered hub
Replies: 1
Views: 109

Re: USB 3 powered hub

Probably the biggest failing in powered hubs in underspec--sometimes *way* underspec--power supplies. For a USB hub, the PSU should be able to provide the specified 900mA to every port at the same time. that means *at* *least* a 3.6A PSU for a 4-port USB 3 hub. If the PSU can't do that, then I'd wou...
by W. H. Heydt
Mon Jul 08, 2019 4:38 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

I was always used to building circuits with through hole components on strip boards or my own home made PCBs. Since my TTL digital clock with Nixie tubes in 1974. If I had the time, money, and energy, I'd want to build a vacuum tube driven Nixie clock. Why go for half measures? Another interesting ...
by W. H. Heydt
Mon Jul 08, 2019 4:28 pm
Forum: Official Foundation Display
Topic: Suggest me complete device with 10" display
Replies: 1
Views: 94

Re: Suggest me complete device with 10" display

Welcome to the forums. If you tell us where you are located, I'm sure someone could build such a device for you. How much money do you have? Here's the basic issue... By and large, Raspberry Pi projects are DIY. There aren't a lot of canned solutions to specific requirements. As a result, you are un...
by W. H. Heydt
Mon Jul 08, 2019 4:21 pm
Forum: General discussion
Topic: Power Supply for multiple RAPI4B+
Replies: 7
Views: 357

Re: Power Supply for multiple RAPI4B+

Minor nitpick...
There is no "Pi4B+". There are three versions of the Pi4B.
by W. H. Heydt
Mon Jul 08, 2019 4:15 pm
Forum: General discussion
Topic: Third party OS using pi 4
Replies: 18
Views: 931

Re: Third party OS using pi 4

Laziness? Lack of resources (time, people, money, knowledge) Though also stubborn or just not wanting to support 32bit, or actual demand. The first option may well be the main reason, as I know you (RPT) are well aware is often the main reason. I wouldn't call it laziness in most cases. Otherwise l...
by W. H. Heydt
Mon Jul 08, 2019 5:33 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

Software can take x amount of time, in the mean time Pi4s are filling up the warehouse at 15K/day or was that 15k/week. One of the RPT Engineer moderators said that production is "over 15K per day". Not surprising, since some 5 million Pis are sold per year, so 100K have to be made per week, counti...
by W. H. Heydt
Mon Jul 08, 2019 5:29 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

I don't think it was very long ago that the CM3 was released? Might be a while before a CM4 shows up. I just went by what I could find. ;) CM3 was a while ago. The recent (this year) release is the CM3+ series. The CM3+ finally broke past 4GB eMMC. In fact, there is no 4GB CM3+. They start at 8GB a...
by W. H. Heydt
Sun Jul 07, 2019 4:44 pm
Forum: Off topic discussion
Topic: Custom RPi board from scratch
Replies: 5
Views: 456

Re: Custom RPi board from scratch

The OP could also buy the SoCs, if he has the funds to commit to a large enough order. Back in the day of the Model B, it was asserted that the required quantities would in in the hundreds of thousands per quarter. Minor note for the OP....the Pi4B uses a 6-layer board. Are you equipped and prepared...
by W. H. Heydt
Sun Jul 07, 2019 4:41 pm
Forum: Off topic discussion
Topic: RIP 32 BIT
Replies: 223
Views: 6443

Re: RIP 32 BIT

Though I do produce and sale a WDC65C816S based Single Board Computer through some of the local electronics store fronts. It has 64MB SRAM (bank switching to exceed 16MB), 32KB ROM, a P8X32A for I/O, and I put the retail price at $30 ($29.99) (costs about $18 to produce, I end up with $20 after the...
by W. H. Heydt
Sun Jul 07, 2019 4:34 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

ON TOPIC: I am still looking forward to the RPi 4B. Though I will definitely be giving it a bit of time before I get one. I am surprised, based on the reports on these forums it appears that the firmware and Raspbian were both released pre-Alpha quality. It almost feels like they released it premat...
by W. H. Heydt
Sun Jul 07, 2019 4:19 pm
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

To me, some this is why we have a 3B+ and a 3A+. No ethernet of tall USB header on the A series. Nice and slim for embedded projects where a Pi Zero may not cut it. And why we have a Pi Zero, nice small bit of kit with the minimum "most" may want. And there is of course the compute module. IMHO tha...
by W. H. Heydt
Sun Jul 07, 2019 5:33 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

fruitoftheloom wrote:
Sun Jul 07, 2019 5:14 am
I am not holding breath waiting for a DavidS SBC running his own Personal Operating System for $35.00, as I will likely be dead by 2050 !
I'd like to be alive then...I'd be 101.
by W. H. Heydt
Sun Jul 07, 2019 5:32 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

There are a couple of things I would remove: 1) The Ethernet socket. That is a huge ugly waste of space and expensive. Nothing around here has been connected via ethernet cable for years. If anyone out there still needs ethernet there are always USB/ethernet adapters. 2) The audio jack. Another big...
by W. H. Heydt
Sun Jul 07, 2019 5:22 am
Forum: General discussion
Topic: Should I wait for the next revision of the pi 4
Replies: 40
Views: 2072

Re: Should I wait for the next revision of the pi 4

And the ARM cores are becoming bigger than Videcore these days. So next shrink to 16nm and we get two VC6s? In 28nm the VC6 is smaller than the VC4 = faster? How big is the L2 cache? Is it the biggest part of the die? To make the 100Millions of BCM2711 to fill sales need lots of dies per wafer, not...
by W. H. Heydt
Sun Jul 07, 2019 3:29 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

Seems like a waste of space to use an entire HAT just for an RTC. Heck, the PCB would cost as much or more than any number of RTC modules that are on the market. Now if you designed a HAT that had a bunch of other stuff people wanted and added an RTC to it, that might work. Say, a PoE+fan+RTC HAT. ...
by W. H. Heydt
Sun Jul 07, 2019 12:38 am
Forum: Off topic discussion
Topic: The Great Raspberry Pi Computers.
Replies: 105
Views: 3582

Re: The Great Raspberry Pi Computers.

I have to say, I personally am very happy with the current offerings. I use quit a few Zero W's, some 3A+'s and some 3B and 3B+'s. I'll likely slowly replace my model 3's with the equivalent model 4's. Heh... The largest number of Pis I have in regular use are...Pi2Bv1.1 boards. The oldest I have a...

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