34 votes

Raspberry Pi Pico 2 announced with dual ARM and RISC-V cores

16 comments

  1. [15]
    skoocda
    Link
    Very welcome news. I've been using the Pico and Pico W for some projects, and it's a great ecosystem, even for using Rust which isn't an officially supported language. However, if you're willing...

    Very welcome news. I've been using the Pico and Pico W for some projects, and it's a great ecosystem, even for using Rust which isn't an officially supported language.

    However, if you're willing to work a little closer to the bleeding edge, you can get a board like the Milk V Duo 256M which can run RISC-V and ARM simultaneously, with specs that blow the Pico 2 out of the water. Same form factor, but 10x faster and 500x more memory (DRAM rather than SRAM though)

    14 votes
    1. [8]
      SirNut
      Link Parent
      Very much off topic, but what sorts of projects are you working on with your Pico's? I have two I want to play around with, but most of my Pi experimentation revolves around DAC's for audio gear,...

      Very much off topic, but what sorts of projects are you working on with your Pico's?

      I have two I want to play around with, but most of my Pi experimentation revolves around DAC's for audio gear, or for my 3D printer

      6 votes
      1. [2]
        skoocda
        Link Parent
        Porting this to Rust currently: https://inputlabs.io/alpakka Also futzing around with some LoraWan modules and trying to write a field oriented control system for a BLDC motor, but not with a...

        Porting this to Rust currently: https://inputlabs.io/alpakka

        Also futzing around with some LoraWan modules and trying to write a field oriented control system for a BLDC motor, but not with a serious plan in mind yet.

        7 votes
        1. SirNut
          Link Parent
          Oh my god you just changed my life if that controller works as advertised Have you actually tried building it? Is it as perfect as it sounds?? I want to play with a controller but I aim so much...

          Oh my god you just changed my life if that controller works as advertised

          Have you actually tried building it? Is it as perfect as it sounds??

          I want to play with a controller but I aim so much better with a mouse and low dpi/big movements - my fine motor skills suck so I can’t aim with tiny mouse movements and that problem translates to a thumb joystick

          1 vote
      2. mordae
        Link Parent
        I like hacking it to to learn about Software Defined Radios and Digital Signal Processing. Apart from that, building a hand held console with kids at a local community center or a smart stairway...

        I like hacking it to to learn about Software Defined Radios and Digital Signal Processing. Apart from that, building a hand held console with kids at a local community center or a smart stairway lighting.

        3 votes
      3. [3]
        teaearlgraycold
        Link Parent
        I made a tiny 3x1 Cherry switch keyboard with one. It was my first 3D printer project. The first key is for "Previous Track", the middle is "Play/Pause" and the last is "Next Track". If you hold...

        I made a tiny 3x1 Cherry switch keyboard with one. It was my first 3D printer project.

        The first key is for "Previous Track", the middle is "Play/Pause" and the last is "Next Track". If you hold down the middle button the left and right will increase or decrease volume when held or tapped. So it's a really tiny mechanical switch media controller. It's USB C and even works with iPhones! Pretty nice. Generally it's plugged into my desktop so I can fiddle with media while playing a video game. Not super necessary because my full keyboard, the Ergodox EZ, supports QMK and has fully remappable keys. But it was a fun project.

        3 votes
        1. SirNut
          Link Parent
          That does sound like a fun project! I might look into similar things as well

          That does sound like a fun project! I might look into similar things as well

          1 vote
        2. tomf
          Link Parent
          that's awesome! I'm using a dodgy keypad for those same functions.

          that's awesome! I'm using a dodgy keypad for those same functions.

          1 vote
      4. PetitPrince
        Link Parent
        I've bought I custom replacement PCB for my arcade stick based on RP-2040 that uses GP2040-CE as a firmware. When installed, this would make my PS3 stick compatible with my Switch, and with the...

        I've bought I custom replacement PCB for my arcade stick based on RP-2040 that uses GP2040-CE as a firmware. When installed, this would make my PS3 stick compatible with my Switch, and with the correct dongle with my PS5.

        2 votes
    2. [5]
      elight
      (edited )
      Link Parent
      Ok but how much more expensive? Some of the wonder of the Pico/RP 2040 is how damn cheap it is. EDIT: Derp! $5. Bring on the Pico 2 W

      Ok but how much more expensive? Some of the wonder of the Pico/RP 2040 is how damn cheap it is.

      EDIT: Derp! $5.

      Bring on the Pico 2 W

      3 votes
      1. [4]
        skoocda
        Link Parent
        For the same price ($5) you get 64MB of memory. For $15 you get 256MB. Raspberry Pi has never really been the most price competitive option, but unless you're literally eating these it shouldn't...

        For the same price ($5) you get 64MB of memory. For $15 you get 256MB.

        Raspberry Pi has never really been the most price competitive option, but unless you're literally eating these it shouldn't matter much.

        5 votes
        1. [2]
          mordae
          Link Parent
          The RP2040 chip itself is $1. There is nothing even close to it if you factor in clock speeds and peripherals. It's not competing with Allwinner as a cheap Linux system. It's for hard real-time...

          The RP2040 chip itself is $1. There is nothing even close to it if you factor in clock speeds and peripherals. It's not competing with Allwinner as a cheap Linux system. It's for hard real-time control stuff.

          3 votes
          1. Akir
            Link Parent
            Yeah, that's probably the biggest reason why it's become so successful. On the other hand Arace sells the Milk-V Duo 256M for only $8.99, but their cost for the SG2002 chip that is on it is $35.99...

            Yeah, that's probably the biggest reason why it's become so successful. On the other hand Arace sells the Milk-V Duo 256M for only $8.99, but their cost for the SG2002 chip that is on it is $35.99 for 5 of them, which comes to about $7.20 each. In the meanwhile, The Pi Hut is selling RP2040 chips for $0.71, and that's from a domestic shipper that doesn't have to deal with international shipping. The greater specs and extra functionality of the Milk-V and it's chip are great if you need it, but for a lot of projects, you simply don't. You can do a surprising amount of interesting things with few resources. For instance, one of my personal favorite RP2040 projects is the Picotracker - a full-featured music tracker with MIDI control and a built-in sample-based synthesizer.

            1 vote
        2. elight
          Link Parent
          Compared to ESP32, it's pretty darn good!

          Compared to ESP32, it's pretty darn good!

          1 vote
    3. teaearlgraycold
      Link Parent
      Ooh, I love the built-in ethernet on that Milk V Duo. I've been dreaming of building an RJ-45 size micro-server. Basically a flash drive sized computer that runs off of PoE and plugs right into...

      Ooh, I love the built-in ethernet on that Milk V Duo. I've been dreaming of building an RJ-45 size micro-server. Basically a flash drive sized computer that runs off of PoE and plugs right into networking hardware.

      1 vote