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Raspberry Pi 5: available now

raspberrypi.com

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Re: Raspberry Pi 5: available now

#191

Post by dgacmu »

starik36 wrote: post #190
dgacmu wrote: post #184

Earlier quoted context omitted.

How do you tell when the dryer is finished?

I bought a Kasa Smart Plug ( https://www.amazon.com/dp/B08LN3C7WK ). It has an API for reporting energy usage. Luckily there was already a library ( https://github.com/python-kasa/python-kasa ) for calling this API. I wrote a small console app that checks energy usage and when I detect a drop, I know that the dryer is done. Then the app uses Twilio to send me a text message. This is my second attempt at solving this…

Ah, that's a nice way, thank you!

Re: Raspberry Pi 5: available now

#193

Post by esskay »

Wowfunhappy wrote: post #48
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…

> 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?

A lot of it depends on what you use it for, in my usecase I've kept the two Pi's I mentioned as they sip a tiny amount of power. The Lenovo Thinkcentre I've got sits idle at around 7w but it's running a fair few service I use for dev work throughout the day, and the Pi would struggle to cope.

If you used one for something equivilent to a pihole then I think yes it would cost more over time, although we're likely talking many years of 24/7 runtime for it to then become more expensive, the low power x86 chips are a lot more efficient than they used to be.

Re: Raspberry Pi 5: available now

#194

Post by briHass »

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…

Do hobbyists typically need more ADC than what the ESP32 provides? Granted, it's limited to essentially one 12bit split on 8 channels, but with well calibrated dividers, that probably meets many needs.

I think the ESPs are really the perfect balance of functionality to (low) cost. That and the excellent beginner-level documentation and community.

Re: Raspberry Pi 5: available now

#195

Post by cmrdporcupine »

walterbell wrote: post #192
cmrdporcupine wrote: post #138

RK3588 looks like a far more interesting SoC & product to me now.

Have you seen a RK3588 SBC that supports OP-TEE, i.e. allows the owner to run custom TrustZone code?

Not something I have looked into.

I've had my eye on https://turingpi.com/product/turing-rk1/

Re: Raspberry Pi 5: available now

#196

Post by rtpg »

justin66 wrote: post #20
dividedbyzero wrote: post #14

Earlier quoted context omitted.

Lots of people buy these on a finite hobby budget.

Is there some missing context here, like "...and they only have ten dollars to spend on hobbies during the entirety of 2023 due to the famine wracking their homeland?" I mean, when you're talking about things (items in your "finite hobby budget") that cost less than a hundred dollars, why are you going to fuss about the "price point?" I am intrigued by how much this appears to matter to people who comment on Raspberr…

I dunno, as a kid if there was a $40 or a $80 thing, I would get the $40 one (both would involve negotiating with parents anyways, and there's an obvious big gap here).

$40 is a lot of money for teens without income (which is the case for most teenagers across the world outside of the US). Most kids get money maybe once or twice a year and have to spread it out, and then negotiate for other hobby-based purchases when they can. There's a reason forums are filled with people discussing how to maintain sub-$100 Thinkpads!

Re: Raspberry Pi 5: available now

#197

Post by HeyLaughingBoy »

mike_d wrote: post #177
turtlebits wrote: post #139

Earlier quoted context omitted.

The main advantage of the Pi is the ecosystem and availability/consistency, not the price. The hardware is known and well documented has the best OS support. If I have issues, I can just move the SD card to another one, or just reflash another SD with 0 downtime or fuss.

> The main advantage of the Pi is the ecosystem and availability Availability is a big oof. We learned over the past few years that you shouldn't build anything of any importance on top of RPi because when manufacturing crunches hit "hobbyist" products are first to be sidelined.

I don't think that's a very helpful takeaway from the situation.

Early in my career as an EE, I learned that your world could suddenly be upset and swaths of components could suddenly become unavailable to the small manufacturer because an auto company or some other massive customer got preference, so the majority of parts went "on allocation." Meaning that the production runs were allocated to certain customers and if you were lucky then you got the leftovers. You could suddenly not be able to built product for a year because critical parts just couldn't be found on the market. I remember one vendor selling a part that normally cost around $16 for over $400.

It's not specific to the Pi: this happens everywhere.

Re: Raspberry Pi 5: available now

#198

Post by HeyLaughingBoy »

briHass wrote: post #194
dragontamer wrote: post #146

Earlier quoted context omitted.

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…

Do hobbyists typically need more ADC than what the ESP32 provides? Granted, it's limited to essentially one 12bit split on 8 channels, but with well calibrated dividers, that probably meets many needs. I think the ESPs are really the perfect balance of functionality to (low) cost. That and the excellent beginner-level documentation and community.

I haven't tried it yet (or checked the datasheet), but I've heard that the ESP32 has a really crappy ADC. It's nonlinear to the point of only getting 10 of 12 useful bits out.

Re: Raspberry Pi 5: available now

#199

Post by nope96 »

benterix wrote: post #63

I'm sorry but it got too expensive and hence lost its main advantage. These days I use second-hand desktop mini-pcs that cost minimally more than the full Rpi set (charger, CD card, case, SBC) but are much more powerful. For anything involving WiFi/IoT, I use ESP32 - far less expensive and very easy to use. And for cases where WiFi is not needed, we have tons of interesting solutions and few reasons to use the Pi.

The first Pi (2012 release) was $35, this release is, when inflation adjusted to 2012 dollars, $44. So in the same ballpark-ish

Re: Raspberry Pi 5: available now

#200

Post by rldjbpin »

is it though? checked all official resellers for two countries and the model is not readily available anywhere.

i figured that after a decade of selling millions of Pis, they could establish direct sales channels by now. but instead we are still stuck with re-resellers who charge a hefty markup on marketplaces people outside of electronics would ever visit.

this is like the major critcism that remains for me with their original mission. the price might have started being accessible, but to buy one has almost never been so.

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