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ESP32-S31

ESP32-S31

volemo

Comments (100)

  • alnwlsn
    I kind of wish these all weren't called ESP32. ESP8266 and ESP8285 -> ESP32 made sense, but now we have 10+ different versions with different features and different architectures.Kind of like how in every thread involving a Raspberry Pi Pico (RP2030/RP2350), there's always someone confusing it with the single board computer version.The ESP32 (Classic, usually WROOM-32E) is still usually what comes to mind when I hear ESP32.
  • randomint64
    Espressif is on fire! And the CPU even has SIMD instructions!RISC-V cores is a big deal for embedded systems because now compiling for SoCs is only a matter of `rustup target add riscv32imac-unknown-none-elf` instead of downloading half-broken proprietary toolchains and SDKs.Take a look at https://kerkour.com/introduction-to-embedded-development-wit... and https://kerkour.com/rust-esp32-pentest to get started with modern (Rust ;) embedded development.
  • frikk
    I've been building hobby LED art projects with WLED (exclusively built on the ESP32 platform). It's been a blast. These little boards are so powerful and the open source community continues to amaze me.My preferred controller platform is of the QuinLED line - comes with power distribution, voltage regulators, fat copper lines, configurable data-line resistors, and smart auxiliary hardware support all for an affordable $30-$50 per controller. (quinled.info)<https://kno.wled.ge/> - WLED homepage and probably my favorite clever URL of all time.
  • oritron
    The specs look great, will see how long it takes to get these as WROOM modules or on little dev boards; my two form factors of choice for Espressif devices. I'm also curious about the pricing, so far they've impressed me with how much more you get in successive generations at a similar price.If you're excited about the (relatively) speedy RISC-V cores and SIMD, look at the P4 which is available now. It has a slightly faster clock but no wireless: https://products.espressif.com/#/product-comparison?names=ES...There's some cool work out there using the dsp functionality and built in image handling to crunch a lot of pixel data, which should work similarly on the S31: https://www.reddit.com/r/WLED/comments/1ry2jd7/wledmmp4_with...
  • Aurornis
    Good to have WiFi and wired ethernet on the same part again.Although we lost the MIPI support that the P4 dual-core RISC-V line has.
  • jml7c5
    Previous discussion from two months ago, when this was announced: https://news.ycombinator.com/item?id=47561678
  • lucamark
    Great to hear the adoption of RISC-V across the ESP32 line. The old Xtensa-based parts were fine, but RISC-V should make tooling, compiler support, and long-term ecosystem work cleaner
  • skybrian
    I'm interested in audio out because I dabble in musical instruments.What's the state of Bluetooth audio out on microcontrollers? Is low latency and high quality output possible?
  • mort96
    This looks like the long-awaited replacement for the original ESP32. The S and C series have been relatively low performance (the S better than the C but stuck on the outgoing Xtensa architecture), the P4 is powerful but lacks wireless. This is a relatively high performance, dual core MCU with wireless; a nice default option for low volume designs where being able to copy a previous implementation is more important than saving a few cents. Just like the ESP32. Nice.
  • topspin
    I'm excited that this MCU and the P4 has RISC-V CLIC. That puts it at least on par with Cortex NVIC and enables bare metal frameworks like Rust RTIC to work really well.Also 4x MCPWM peripherals; that's a first for any Espressif MCU.The additional GPIOs are very welcome as well. CAN-FD!This device is going to be a big hit for Espressif.
  • thehk
    > ESP32-S31 is particularly well suited for edge AI and machine learning workloads, including neural network inferenceAny way to know what kind of performance one could expect running e.g. a depth anything model on there?
  • zuzululu
    How do I order a few samples, seem like there is a MOQ ?Also I want to dive into hardware stuff but I'm always clueless as to what I do afterwards when this would arrive? Are you using a generic board or are you ordering and designing PCBs to hook this up to?What are you using it for ? How do I go from a prototype to mass production via kickstarter?
  • hart_russell
    Any reason why this device wouldn't have Z-Wave? Is the wireless protocol significantly different than Thread and Zigbee?
  • orphea
    It being RISC-V is awesome, but how does it make sense that it's S series when S series have been Xtensa cores? Why is it not C series?
  • anon
    undefined
  • einpoklum
    I'm the maintainer of a standalone printf library, targeting mostly embedded devices and other no-standard-library use cases:https://github.com/eyalroz/printf/I would like to make sure the library can be used on this SoC, and other RISC-V systems; which it probably can, but if there are any issues cross-compiling for it, or using the toolchain Espressif provides, please consider filing a bug report on GitHub at the link above. Same of course goes for any FOSS librar/tool that you're trying out.Let's help foster a rich(er) ecosystem of software available on these babies!
  • kjlldld
    Is anyone else worried that these chips are all made in China?
  • rie_t
    Love to see more RISC-V in the wild
  • jeremywho
    When can we buy these?
  • nubinetwork
    This looks like a nucleo144, except its risc-v... but why would I use it over said nucleo144?
  • system2
    I wish Espressif was an American company and publicly traded. I'd invest heavily. I have nothing but good things to say about their products.Their product naming could be better; S3 is going to show S31 in the search results.
  • Imustaskforhelp
    The 1GB bandwidth is interesting. It also has Simd instructions too.Could this theoretically be used as a router or wireguard vpn instance?
  • gswdh
    [dead]