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I got almost all of my wishes granted with RP2350

dmitry.gr

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Re: I got almost all of my wishes granted with RP2350

#301

Post by littlestymaar »

vintagedave wrote: post #293
littlestymaar wrote: post #256

Earlier quoted context omitted.

Your description fit what I've seen for rice farming, whose machines usually use bike-like tires.

I’m curious there. I’ve seen rice paddies plowed in Vietnam and the tractors used wide paddle-like wheels. I saw two varieties: one with what looked like more normal wheels but much wider, and one which was of metal with fins, very much akin to a paddle steamer, though still with some kind of flat surface that must have distributed weight. Would they be more effective with thin wheels? Both humans and cattle seem to…

What I saw was in Taiwan, but I guess it must depends on the depth of the mud and the nature of what's below.

Re: I got almost all of my wishes granted with RP2350

#302

Post by g15jv2dp »

rldjbpin wrote: post #291
str3wer wrote: post #193

Earlier quoted context omitted.

the price difference from usb to usb-c is less than 2 cents

devil's advocate: cables for an average user is a different story. also not to forget the vast range of cables already existing out there. also "proper" usb-c support is another can of worms, and maybe sticking to an older standard gives you freedom from all that.

You're confusing USB C and USB 3.1+. USB C is just the physical spec. You can design a cheap device that will only support USB 2 if you just connect ground, Vbus, D+ and D- and gasp add two resistors. It will work just as well as the micro-usb plug.

Re: I got almost all of my wishes granted with RP2350

#303

Post by TheCipster »

While I completely agree with the content of the post, I still think that QFN packages in general, and RP2350's in particular, are very hobbyist-averse.

Moving all GND pins to the bottom pad makes this chip usable only by people with a reflow oven. I really hoped to see at least a version released as (T)QFP.

Re: I got almost all of my wishes granted with RP2350

#304

Post by magicalhippo »

hoherd wrote: post #119
nimish wrote: post #78

Gross, the dev board uses micro-USB. It's 2024! Otherwise amazing work. Exactly what's needed to compete with the existing giants.

FWIW the Pimoroni Tiny 2040 and Tiny 2350 use usb-c, but as mentioned by other commenters, the cost for these usb-c boards is higher. I love having usb-c on all my modern products, but with so many micro-usb cords sitting around, I don't mind that the official Pico and Pico 2 are micro-usb. At least there are options for whichever port you prefer for the project you're using it in.

The Pico 2 Plus[1] has USB-C, and seems quite reasonably priced to me given you get 16MB of Flash and 8MB PSRAM.

[1]: https://shop.pimoroni.com/products/pimoroni-pico-plus-2

Re: I got almost all of my wishes granted with RP2350

#305

Post by dgacmu »

TheCipster wrote: post #303

While I completely agree with the content of the post, I still think that QFN packages in general, and RP2350's in particular, are very hobbyist-averse. Moving all GND pins to the bottom pad makes this chip usable only by people with a reflow oven. I really hoped to see at least a version released as (T)QFP.

Isn't the hobbyist solution to just build a board to which you can attach an entire pico board? That does preclude some things and adds $3, but it makes for a pretty easy prototyping path.

Re: I got almost all of my wishes granted with RP2350

#306

Post by jsfnaoad »

TheCipster wrote: post #303

While I completely agree with the content of the post, I still think that QFN packages in general, and RP2350's in particular, are very hobbyist-averse. Moving all GND pins to the bottom pad makes this chip usable only by people with a reflow oven. I really hoped to see at least a version released as (T)QFP.

Hard disagree. A TQFP package this dense is still quite challenging for a hobbyist. Just use a breakout board, dev board or get the QFN assembled for you at jlcpcb

Re: I got almost all of my wishes granted with RP2350

#310

Post by robomartin »

ebenupton wrote: post #251
robomartin wrote: post #200

Earlier quoted context omitted.

Nice! Thanks for the direct communication BTW. I guess you are very serious about competing with industrial MCU’s. We had to use a 2040 shortly after it came out because it was impossible to get STM32’s. Our customer accepted the compromise provided we replaced all the boards (nearly 1000) with STM32 boards as soon as the supply chain normalized. I hope to also learn that you now have proper support for development u…

It's a fair comment. Give our VSCode extension a go: the aspiration is to provide uniform developer experience across Linux, Windows, and MacOS.

I will when I get a break. I'll bring-up our old RP2040 project and see what has changed.

I remember we had to use either VSC or PyCharm (can't remember which) in conjunction with Thonny to get a workable process. Again, it has been a few years and we switched the product to STM32, forgive me if I don't recall details. I think the issue was that debug communications did not work unless we used Thonny (which nobody was interested in touching for anything other than a downloader).

BTW, that project used MicroPython. That did not go very well. We had to replace portions of the code with ARM assembler for performance reasons, we simply could not get efficient communications with MicroPython.

Thanks again. Very much a fan. I mentored our local FRC robotics high school team for a few years. Lots of learning by the kids using your products. Incredibly valuable.

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