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New Raspberry Pi Model B+

raspberrypi.org

71–80 of 220 posts

Re: New Raspberry Pi Model B+

#71
post #8

Still Ethernet via USB 2.0, which means it is not actually gigabit.

I also noticed that. It's only ~280 megabits so seems a bit dishonest to call it gigabit. I guess what they mean is "gigabit ethernet standard" i.e. 1000BASE-T. Also how does it act once its internal receive buffer is full? Is it possible to get the sender to slow down, or does it have to start dropping frames? Will important things such as ARP broadcasts and DHCP requests just risk getting lost?

There is nothing dishonest about their announcement: they are explicit that speed is limited by the USB bus:

> While the USB 2.0 connection to the application processor limits the available bandwidth, we still see roughly a threefold increase in throughput compared to Raspberry Pi 3B.

Followed by a table showing 315Mb/s bandwidth, three times that of the 3B but a third that of full-speed Gigabit. And this isn't tucked away in a footnote, it's up front in the middle of the article.

Re: New Raspberry Pi Model B+

#72
post #16

PXE booting is sweet. I develop an OS (Crankshaft) for the Pi, and a lot of times it just has been waiting to write a new OS to the SD card, waiting, plugging it in, realizing I forgot to do something, so I had to repeat. Each time it was 15 minutes of waiting. Pulling the card out and putting it back in, especially with the ribbon cable on the way (and a case too) has been really painful. PXE boot is going to solve…

Didn't they already have pxe support on the Model 3B? This is just a bug fixed version (and enabled by default).

Yup. It's somewhat nontrivial though: https://www.raspberrypi.org/documentation/hardware/raspberry...

Re: New Raspberry Pi Model B+

#73
post #11
post #3

+1 for PoE support

PoE support has always been available with a seperate PoE Hat [0], I found it to be a strange announcement. 0: https://coolcomponents.co.uk/products/pi-poe-switch-hat-powe...

This is much cleaner[1] though. It seems to just do 48/24v -> 5v via 4 pins. No more ethernet pass-through.

[1]: https://www.raspberrypi.org/app/uploads/2018/03/770A6339-161...

Re: New Raspberry Pi Model B+

#74
post #47

> If you’ve been a Raspberry Pi watcher for a while now, you’ll have a bit of a feel for how we update our products. Model B... Model A... Model B+... When can we expect to see the Raspberry Pi Master and the Raspberry Pi Master Compact?

You forgot 3D and Ultra silly! ;)

They've gone straight to Plaid!

Re: New Raspberry Pi Model B+

#75
post #56

I'm a big fan of the Raspberry Pi community in general and have used it for multiple applications over the years; most recently as a media center TV box. However, the hardware now feels old and I wish for more of an update from the Pi foundation. If anyone hear is looking for a true upgrade on the Pi, try the ODROID C2, it's years ahead of the Pi in terms of performance.

The XU4 from Odroid is even better than the C2. There is virtually no reason to get the C2 now.

Re: New Raspberry Pi Model B+

#77
post #61

I wish they would finally expose the data lines for the second camera in their "hobbyist" boards as well. Currently the dual camera setup is supported only by Compute Module, but it's cumbersome to use because the bulky I/O board (and expensive). The foundation is overlooking the most unique feature of the Broadcom chipset, the 3D video support. They already have implemented the software/driver side, so only thing re…

That is interesting, I didn't even know that was a feature that was capped on the RPi. I can see that being made into very compact 3D Scanners very quickly after launch if that was added as a feature.

To clarify, the "3D video feature" is nothing more than being able to record simultaneously from two cameras and merge the video inputs into side-by-side H264 stream. Combined with hardware H264 encoding with delay of ~100 ms, this is very useful for certain applications (in my case, live 3D video broadcasting from UAV). I'm not aware of any other "tinkerer-friendly" board capable of that.

Re: New Raspberry Pi Model B+

#78
post #68

Power over Ethernet is terrific, this means only one cord is now needed for a fully functioning pi (assuming you have the proper Ethernet setup on the other end).

But PoE isn't actually built-in to the Pi, it requires an external hat, purchased separately, and using a PoE hat has been possible on previous versions, yet they decided to announce it now, it's confusing.

They are not announcing PoE now. It is listed next to this particular model's features. The new/updated functionality is even bold (and power over ethernet is not).

Re: New Raspberry Pi Model B+

#79

Why was the title changed? It's misleading right now since there's already a Raspberry Pi Model B+ available for ages. Should be "New Raspberry Pi 3 Model B+" just like on the blog post.

It is. See here: https://www.raspberrypi.org/products/ Edit: Didn't realize you meant the title.

Parent comment means the HN title should include the "3" which (as of now) it does not

Re: New Raspberry Pi Model B+

#80
post #49
post #43

Earlier quoted context omitted.

That's what I suggest people to use now. The USB microphone needs power and one more USB port. If the Pi had a microphone input, we would have absolutely no need for the second USB port. Not having to have the second USB port means we would need no chip for the 4-port hub. Having the distro supporting the Pi Zero that has 1 USB port has been something I've been dreaming about.

How about an I2S microphone [1]? Or a PDM microphone [2]? These hook up to GPIOs. [1] https://www.adafruit.com/product/3421 [2] https://www.adafruit.com/product/3492

Also https://shop.pimoroni.com/products/respeaker-2-mics-phat and https://shop.pimoroni.com/products/respeaker-4-mic-array-for...
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