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Raspberry Pi 5: available now

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Re: Raspberry Pi 5: available now

#161

Post by GeorgeTirebiter »

TaylorAlexander wrote: post #151
dragontamer wrote: post #103

Earlier quoted context omitted.

Pico has its own problems: 1. VQFN package is a pain to deal with. You can't use a soldering iron, so its reflow-only and therefore requires hotplate + reflow hot air to deal with. Due to the difficulty of rework, you likely can't use the soldering iron+solder wick technique to fix solder bridges, for example... and therefore also require a soldering stencil to work with (gotta deposit the correct amount of solder-pa…

Just a note on soldering: I’m perfectly capable of soldering VQFN at home, but these days it’s so easy to order fully assembled boards from JLCPCB that I think lost hobbyists would start with the Pico and then go straight to turnkey assembly once they have a custom design. I stopped assembling my own boards two years ago (after a decade) once I placed my first turnkey order at JLCPCB. Ten pieces of a simple RP2040 bo…

Actually, they did a huge buy of RP2040 right out of the chute, in order to get decent prices. Heck, in not huge quantities, the chip costs $ 0.70 --- not so bad.

But if you want super cheap, 'standard'-type uC chip, look at the $ 0.10 https://github.com/openwch/ch32v003/tree/main

Re: Raspberry Pi 5: available now

#162

Post by theyinwhy »

magixx wrote: post #135
musha68k wrote: post #114

Can anyone recommend a forward looking “JBOD case” holding the rpi5 that maybe has room for ample cooling for 24/7 usage? Basically for something like a “DIY Asustor” ++ build? Any 2c much appreciated.

It's unfortunate but unless you're willing to spend quite a bit of money (or are willing to forgo compactness) these are hard to find especially for 3.5" drives. Radxa did have the Taco and Mediasonic does make compact 4/8 bay JBODs bur these are USB only. There are also various NVME to SATA/SAS adapters but these mostly make use of port multipliers and speed won't be amazing. You'll probably also want some SATA back…

Be aware that TB 3/4 is only PCIe3, 4 lanes (each 8Gbit) = 32 gbit

Re: Raspberry Pi 5: available now

#163

Post by dgacmu »

duffyjp wrote: post #62
Wowfunhappy wrote: post #48

Earlier quoted context omitted.

> Once an 8GB pi cost more than an i3 or i5 mini pc But the Pi probably costs less once you factor in energy costs, no?

I tried measuring the wattage of my Pi Zero W when I got it but my Kill-A-Watt just registered 0 even when running stress -c 1. ;)

You can measure it with an inline USB power meter. They generally run between half a watt idle and 2 watts depending on what you're doing (using a camera, Wi-Fi, and keeping the CPU busy) and if you've shut down things like the video output and LEDs to try to save power.

Re: Raspberry Pi 5: available now

#164

Post by nirav72 »

tjoff wrote: post #141
nirav72 wrote: post #118

Earlier quoted context omitted.

Pi Zero 2 W are still hard to find. Even though the Rpi 4 supplies have gotten better in the past few months.

https://rpilocator.com/ It's been in stock for months every time I cared to look.

Looks like only 1 U.S seller has it in stock. The others have the Zero W. Not the 2. But thanks, I hadn't looked at the rpilocator in a while and was waiting for my local Microcenter to get them.

Re: Raspberry Pi 5: available now

#165

Post by wintermutestwin »

Salgat wrote: post #93
treve wrote: post #26

Earlier quoted context omitted.

Not saying this applies, but: The speed of the raspberry pi goes up dramatically when using a fast USB disk instead of micro SD. Most people start with a micro SD, and I had no idea how much faster a Pi could go.

Now that the RPi 5 exposes a PCIe interface, I have a feeling we're going to see a lot more folks adopting it as a NAS.

If the drives aren’t powered by the pi, then aren’t there going to be grounding issues with a NAS?

Re: Raspberry Pi 5: available now

#166

Post by filterfiber »

dragontamer wrote: post #146
filterfiber wrote: post #144

Earlier quoted context omitted.

How do you feel about the esp32's? I know there's a few variants of the 32 with different capabilities, but how do you feel about using that as a general purpose MCU including projects that might not need wifi/bt? I'm somewhat surprised they didn't go with these as they seem relatively powerful+low deep sleep, with builtin wifi/bt, etc? Their analog input I think is limited though

ESP32 honestly feels like its a WiFi/Bluetooth chip that people are hacking into a kinda-sorta usable uC. Probably because... that's what it actually is... If you need WiFi/Bluetooth, it seems like ESP32 is a good fit. If not, its kind of awful with regards to integration. --------- I know that not everyone's doing mixed-signal projects. But ADC, Comparators, OpAmps, Timers are just so damn useful. And STM32, AVR, TI…

That makes sense thank you!

Re: Raspberry Pi 5: available now

#167

Post by dragontamer »

TaylorAlexander wrote: post #151
dragontamer wrote: post #103

Earlier quoted context omitted.

Pico has its own problems: 1. VQFN package is a pain to deal with. You can't use a soldering iron, so its reflow-only and therefore requires hotplate + reflow hot air to deal with. Due to the difficulty of rework, you likely can't use the soldering iron+solder wick technique to fix solder bridges, for example... and therefore also require a soldering stencil to work with (gotta deposit the correct amount of solder-pa…

Just a note on soldering: I’m perfectly capable of soldering VQFN at home, but these days it’s so easy to order fully assembled boards from JLCPCB that I think lost hobbyists would start with the Pico and then go straight to turnkey assembly once they have a custom design. I stopped assembling my own boards two years ago (after a decade) once I placed my first turnkey order at JLCPCB. Ten pieces of a simple RP2040 bo…

Hmm.

You have a point about RP2040 being a thing that JLCPCB's assembly service benefits from. A singular chip that you "plan to use in most projects", along with pre-loaded pick-and-place machines that have common I2C attachments, makes sense in the scheme of factory design. (While something like Microchip's AVR DA vs AVR DB vs AVR DD vs AVR EA loses out, because SKUs are the enemy of such an assembly line as you'd be forced to manually swap-out reels in between production runs).

Still, RP2040 is a compromised part with plenty of downsides that I've listed above. And as far as a "centerpiece jack-of-all-trades" microcontroller goes, I'm not convinced that the RP2040 is the best to keep preloaded in such a configuration yet anyway to be mass produced into many designs.

But your point stands. It is a production / prototyping issue that intrigues me and I wasn't thinking about earlier.

------------

> Just a note on soldering: I’m perfectly capable of soldering VQFN at home

Well yes. I did say that Hotplate + Reflow Hot Air Gun works. But *soldering iron* is an advantage IMO.

Personally speaking, I don't see any of the chips I use on a regular basis on JLCPCB's list, so I've never felt the need to experiment with it. I can see how its advantageous if those preloaded pick-and-place machines have the chips / components you use though.

Re: Raspberry Pi 5: available now

#168

Post by sgerenser »

LeafItAlone wrote: post #148
rewmie wrote: post #142

Earlier quoted context omitted.

> I don't think that estimate takes into account the power savings (...) I don't think this is relevant. RPis cost is a critical factor in it's usefulness as a disposable toy computing platform, not web servers that need to run 24/7. Moreover, that cost is further worsened by the need to buy a custom power supply.

I have two RPi 4s that run 24/7 that I will likely replace with a 5. > Moreover, that cost is further worsened by the need to buy a custom power supply. But you don’t need to?

Depends on what you’re doing with it. For many things it will run fine off of a 3A 5V supply, which almost any usb-c adapter will do. But as soon as you start hanging any USB devices off of it, IIRC you need a 5A/5V supply which is unusual outside of the RPi-specific one.

Re: Raspberry Pi 5: available now

#169

Post by quesera »

guappa wrote: post #12
peppercat10 wrote: post #9

I wonder if the RPi5 is finally enough for browsing the web and watching media without hiccups. My experience with RPi4 was too sluggish.

No cpu is ever enough for modern web.

Disable, and then selectively re-enable JavaScript.

The web works again.

Re: Raspberry Pi 5: available now

#170

Post by ThatPlayer »

duffyjp wrote: post #59
esskay wrote: post #36

Earlier quoted context omitted.

I've used Pi's dating back to the first one (even had one from the first batch manually packaged up by Eben and co). They're good, but arent without their issues. Power management has been a consistent problem with every single Pi. That combined with the Raspberry Pi Trading Co's behaviour over the last couple of years made me move to alternatives. Once an 8GB pi cost more than an i3 or i5 mini pc that is capable of…

I'm with you on this. I have the Pi Zero W and Pi Zero 2 W. These are IMO the ideal devices in their lineup. Maybe I'm just nostalgic for when computers had limitations but I love them. I have the old one running PiHole, (so DNS stays up if I reboot my server) and the other doing monitoring. I've had zero problems doing everything over wifi, and actually being wifi is a benefit for my internet monitoring since wifi g…

I also like the Pi 3A+ as an in-between. Especially before the release of the Zero2 as the Zero1's CPU was a bit too weak.
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