[HN Gopher] Arduino Uno R4
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Arduino Uno R4
Author : iamflimflam1
Score : 80 points
Date : 2023-06-27 17:04 UTC (5 hours ago)
(HTM) web link (store.arduino.cc)
(TXT) w3m dump (store.arduino.cc)
| Koshkin wrote:
| ARM ate everybody's lunch, it seems.
| nine_k wrote:
| Whose else?
|
| - x86 and x64 are too power-hungry for small systems.
|
| - Power is still up and running, but also on the high end, too
| (see Power 8 and 9).
|
| - MIPS32 cores are found in lower-end MCUs. AFIACT MIPS
| actively offers their cores for embedding in MCUs, like ARM.
|
| - You can still buy MCUs with Atmel AVR and 8051 8-bit
| architectures on the lowest end.
|
| What's lost? SPARC and Motorola 680x0, I presume. I frankly
| wonder what prevented 680x0 from getting into widespread MCUs.
| Apparently Phillips used it their custom controllers for some
| time.
| duskwuff wrote:
| > AFIACT MIPS actively offers their cores for embedding in
| MCUs, like ARM.
|
| Not anymore that I'm aware of. They laid off most (possibly
| all?) of their architectural engineers around 2020 and sold
| off the remaining rights to a Chinese firm.
|
| There's still a few MIPS-based MCUs out there, like PIC32,
| but they're a dying breed. ARM Cortex-M is much better suited
| to these applications.
|
| > I frankly wonder what prevented 680x0 from getting into
| widespread MCUs.
|
| Poor IPC, high interrupt latency. The weird mixed 16/32-bit
| nature of the 68000 made it easier to implement a
| microcomputer with (since you only needed 16-bit RAM/ROM),
| but would only get in the way in a microcontroller (where
| memory would mostly, if not entirely, be internal). It's a
| shame; I liked the ISA, but the performance just isn't there.
| withinboredom wrote:
| > ARM Cortex-M
|
| I almost did a prank post when Apple came out
| with/announced the M1. I had recently had tore down my
| broken PSVR which has the very nicely stamped ARM M1 in it.
| I wanted to post something like "Apple didn't invent it,
| Sony did!" Regretfully, I did not.
| qbasic_forever wrote:
| Z80 and PIC were pretty popular in the hobbyist embedded
| space before Arduino and Atmel AVR really took over in the
| 2000s.
| megous wrote:
| 8-bit PICs are still quite nice. All of them up to 40-pin
| variants are made in DIP package, so I can put a bare
| package into a breadboard and have a ton of features out of
| the box in the right pin number configuration for the job.
|
| People should just select modern ones, and not the same old
| 16F84/877 or something legacy like that, that's been
| obsolete for like 25 years already. All of the modern ones
| have very uniform programming interface, nicely
| configurable I/O and a lot of analog features.
| Koshkin wrote:
| ATTiny85, too, is amazing, having only 8 pins.
| aobdev wrote:
| As an instruction set, yes, but I think this was inevitable
| with the demand for things like native USB, Wi-Fi, Bluetooth,
| and hobbyists wanting to use languages like Python. These
| boards do a lot more than the ATMegas I grew up with, and while
| almost every new design in this space might go with ARM thanks
| to generous specs and low cost and power requirements, I think
| there's still a good amount of competition in the 32bit
| microcontroller market (ST, TI, Microchip, NXP, etc. come to
| mind).
| gsliepen wrote:
| It comes with two XTensa LX7 cores, if you get the version with
| WiFi.
| tda wrote:
| So they stuck an esp32 on the Arduino just for the
| Bluetooth/Wifi? I wonder how it compares to the Arduino processor
|
| Edit: I see this topic was discussed yesterday
| schappim wrote:
| I find it funny that the word "open"[1] is not found on the page!
| The board has "Open Source is [heart]" but no OSHW logo, nor
| links to a repo.
|
| [1] https://files.littlebird.com.au/Shared-
| Image-2023-06-28-08-0...
| timmaxw wrote:
| It's neat that they've added a Qwiic-compatible connector. I've
| been impressed with how many Qwiic peripherals Sparkfun has
| released, so I'm glad to see it getting more traction.
| numlock86 wrote:
| Yesterday's discussion:
| https://news.ycombinator.com/item?id=36481263
| miohtama wrote:
| Uno R4, now with four popups to close before you can read the
| website.
| ex3ndr wrote:
| Finally 32 bits! Let's hope everyone would start forgetting 5v
| and 8bit.
| IshKebab wrote:
| Everyone* except Arduino already did long ago.
|
| *Explanation for HN pedants: this instance of "everyone" does
| not literally mean everyone; it means the vast majority of
| people.
| dragontamer wrote:
| Meanwhile in 8051 land... SiLabs keeps churning stuff out.
|
| IIRC, 8 bit continues to grow. It's just that 32-bits is
| growing faster.
| dragontamer wrote:
| Unless you plan to kill USB, 5V support is kind of baked into
| modern computing.
|
| EDIT: And 8-bit can't seem to die no matter how much people
| try. TI's MSPM0 (Cortex M0+) chips at 39-cents this year (1k
| quantities) might give 8-bitters a run for their money finally
| though. But time-and-time again, 8-bit survives each challenge.
| I dunno why, it just keeps happening.
| m463 wrote:
| Working with the raspberry pi, I really see that they did a lot
| of things right with the arduino in comparison.
|
| Powering the pi could be so much easier - this arduino takes up
| to 24v.
|
| And the arduino female bus pins are so much more practical than
| all the pins sticking out of the pi.
| _def wrote:
| Would love to buy one (way cheaper than expected!) but apparently
| you can't via ipv6 lol https://forum.arduino.cc/t/cannot-sign-in-
| to-store-arduino-c...
| skybrian wrote:
| I'm wondering what's appealing about this size board? I'm
| interested in portable devices so I prefer smaller. Arduino's
| boards seem awkwardly big and expensive compared to a Raspberry
| Pi Pico, Adafruit's Feather boards, or a Teensy for more
| processing power.
|
| They keep making them, so there must some reason?
| gmiller123456 wrote:
| The UNO predates the Pi Pico by about 20 years. It was pretty
| small for everything it did back then. The headers are laid out
| in a standard format so that it can accept "shields", so now
| anything that wants to use those shields has to be this size.
| schappim wrote:
| The Uno was released in 2010.
| steve918 wrote:
| and the weird staggered header design was a mistake from the
| very first boards that has just continued to carry on through
| the years.
| jffry wrote:
| According to [1], the decision to keep the spacing for
| compatibility reasons was a conscious one. I can see how
| they might want to keep the whole ecosystem of Arduino-
| compatible accessories/kits/etc functioning.
|
| [1] https://electronics.stackexchange.com/a/941
| [deleted]
| brainzap wrote:
| too late pico took over
| joemi wrote:
| This is a very different product when comparing it to the Pico,
| for different audiences.
| IshKebab wrote:
| It's a bit different, and sure the Pico audience is slightly
| more advanced, but there are way more similarities than
| differences. They are absolutely in competition.
| withinboredom wrote:
| I could be wrong with this new Uno, but the biggest
| difference between a pico and uno (traditionally) was that
| the USB firmware in the uno could allow you to emulate
| mice/joysticks. That's huge if you're building simpits, or
| human interface prototypes.
| slekker wrote:
| A video auto-started on the page, and I couldn't even find it to
| stop it.
| knodi123 wrote:
| lol, and fake animated popup alerts telling you what other
| customers are buying right now? Is this really a site for savvy
| electronics hobbyists? It feels like the crappiest web2.0
| "seize them by the eyeballs and don't let go" garbage site
| possible.
| RockRobotRock wrote:
| What Chinese knockoffs and open source hardware does to an
| mfer
| nkozyra wrote:
| Maybe it's just a kneejerk reaction to the Digikey and
| Mousers of the world that make most people run for the hills
| (at least at first).
|
| A middle ground sure would be nice.
| redsaber wrote:
| hate that my download manager keep popping off since it is
| detecting a playing video
| suprfsat wrote:
| Bet the "select your country" popup is actually capturing the
| click in order to start playing audio.
| Goz3rr wrote:
| There's a youtube video on the page that autoplays, and
| youtube is on the magic list that can autoplay without
| interaction
| they4kman wrote:
| I was in the middle of a courtroom >:(
| elaus wrote:
| Absolute horror! Auto-playing video with sound on by default,
| hundreds of requests to remote servers (Google Play, Youtube,
| AdSense, some unknown domain, ...).
|
| I respect Arduino for what they have done for the maker and
| tinkerer scene, but landing pages like that will not keep me as
| a visitor.
| gettodachoppa wrote:
| That's what you get for not using uBlock Origin in Advanced
| User mode, with all 3rd party connections blocked by default.
| :)
|
| Here's a screenshot, everything in red was blocked:
| https://i.imgur.com/pAEMBxD.png
|
| That's 84 requests blocked (54% of the page, 14 domains blocked
| out of 16)
|
| To do this, in Advanced User mode, under 3rd Party Scripts and
| 3rd Party Frames, click the left-most cell pair to make them
| red. (right-most pair is settings for the current site only,
| left-most pair is for every single site, ie default settings)
| [deleted]
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(page generated 2023-06-27 23:00 UTC)