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Raspberry Pi 4

raspberrypi.org

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Re: Raspberry Pi 4

#351

Post by Symbiote »

patentatt wrote: post #206
grenoire wrote: post #163

Earlier quoted context omitted.

Do you realise that non-profit means that you just don't have leftover cash at the end of the year in your balance sheet? Non-profits pay their employees and their suppliers, their financial situation has absolutely nothing to do with what you are implying.

I think the gp’s point is that to a lot of entities (employees, suppliers) there is little difference between for profit and non profit. And if your nonprofit is passing profit along to a for profit ... you can see how the lines blur. Maybe a way to interpret the above comment is that the incentive structure for many people involved is not significantly impacted by the nonprofit status. And non profits can have money…

The Raspberry Pi Foundation is a charity registered in England and Wales. "The object of the charity is to further the advancement of education of adults and children, particularly in the field of Computers, Computer Science and related subjects." They have a trading subsidiary.

Anyone sufficiently cynical (not me) can read the accounts of both entities:

- https://beta.charitycommission.gov.uk/charity-details?regid=...

- https://beta.companieshouse.gov.uk/company/08207441

Re: Raspberry Pi 4

#352

Post by listic »

icefo wrote: post #202

I'm very happy about that ! I needed to build a low power Nas with ZFS and the only board that could do the job (gigabit Ethernet, sata IO, powerful 64 bits processor, 4GB of ram) was the rockpro64. Sadly I discovered after receiving it that it can't run regular Linux distros out of the box. I had to download an image from some guy on GitHub. He seemed reasonably trustworthy since it was linked from the manufacturer'…

How exactly do you plan to connect hard drives to a Raspberry Pi? Use drives in external USB enclosures just lying around? Looks a bit hacky to me.

I am planning on doing a NAS to, but decide to forgo the low power aspect and use an older PC hardware. But not too old, apparently, as FreeNAS requires 64-bit and 8+ GB of RAM, nowadays, for the ZFS, apparently.

Re: Raspberry Pi 4

#354

Post by [deleted] »

bscphil wrote: post #112
iruoy wrote: post #103

Earlier quoted context omitted.

The Raspberry Pi 4 B uses ARM VideoCore IV. As far as I can find HDR will only come in the updoming VideoCore V. So no. No HDR yet.

That's really too bad. It makes the 4K support useless for building an HTPC, which is a common use for the Pi. As far as I can determine, several of their competitors already support 10bit decoding, although specifics (about stable HDR support) are sometimes hard to come by.

[deleted]

Re: Raspberry Pi 4

#355

Post by mvip »

TheAceOfHearts wrote: post #348
mvip wrote: post #326

Earlier quoted context omitted.

That's fine for your desk, but hardly a good solution when deploying Raspberry Pis in the wild.

Why not? I'm not very familiarized with this space, but couldn't you just use a low-profile USB flash drive like this [0]? [0] https://www.amazon.com/dp/B01GK9921C/

In theory, yes (but quality varies a lot on them). The point is that adding a proper eMMC would have made the device a lot more "production ready".

Re: Raspberry Pi 4

#356

Post by ksec »

I wonder why they don't price the 4GB model at $50. And get rid of the 2GB Model.

I know they are a Charity, but the pricing structure seems odd, would it be the case the 2GB and 4GB and making some money and 1GB being a loss leader?

I wonder how much is the actual BOM Cost for the $35 model.

And in terms of VideoCore, how does it compare to other commercial GPU like Adreno and Mali?

Re: Raspberry Pi 4

#357

Post by danShumway »

shams93 wrote: post #97

I'm super excited as well. I figured out the secret sauce to get a low latency kernel build I was able to get down to 20ms latency but I'm excited to see if this can't get down to 10ms even though 20ms is acceptable low audio latency, already with only 1 gig of ram on a pi3 ardour is usable for multitrack recording, excited to see how this does with 4 gigs.

I would also love to see a writeup about low-latency kernels on the Pi, if you've got the time.

Just recently got into audio processing, and I'm finding this stuff really interesting.

Re: Raspberry Pi 4

#359

Post by gambiting »

Y_Y wrote: post #231
elliotpage wrote: post #185

Can't wait to buy this, boot it up, play with it for four hours, then stick it in the same desk drawer with the other Pis I have bought over the years. (The upgrades look great, just my attention span is not so great)

Don't forget to keep it powered while it's in the drawer so you could ssh and build something really awesome. Maybe it's a personality flaw, but I get plenty of satisfaction from just reading blog write-ups if things I could have done with my tech junk, without all the associated time invested. It's much easier to vicariously enjoy projects like these, which is why I think drawer-dwelling is an inevitable destiny for…

Well, same reason why so many people watch playthroughs of difficult games on YT without playing the games themselves. There is a pay off for seeing what you could do if you had the time or motivation to do so.

Re: Raspberry Pi 4

#360

Post by alexisread »

theknarf wrote: post #287

I'm a bit disappointed that they added type-D (micro) HDMI instead of just two more USB-C ports. If I need to use a dongle anyway (since I can't just plug inn normal HDMI) why not USB-C? Preferably I'd like a version with 4 usb-c ports, 1 normal hdmi, and two normal usb ports. That way I could have it setup with just usb-c, but can still plugin legacy connectors when needed.

microHDMI-HDMI is passive, as mentioned by another poster. The issue here is the software - two standard HDMI (electrically) ports can be really well supported by all the software, meaning that it can all be multi-monitor friendly. USB-C uses hardware so wouldn't have the support, see the issues with HDMI-VGA when the first pie came out.

As an aside, they probably went with microHDMI as they're smaller (and hence cheaper in cost and area) on the board, and put less force with heavy connectors. Lastly, many android tablets have the microHDMI connector so they're easy to get hold of (first world anyway).

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