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  Lwrless
  I'm puzzled by Espressif's naming here. We had the ESP32-S3, so "S31" sounds like "S3, variant 1," but this part doesn't really look like a simple S3 variant. And then there's an ESP32-E22, but no E21 or even a plain E2 anywhere.Edit: found an article explaining some of their naming logic, and said that the SoC naming will get its follow-up article, but sadly it never happened. https://developer.espressif.com/blog/2025/03/espressif-part-...
• bdavbdav
  Love ESP boards, and with Raspberry pi pricing though the roof, I’m hoping more will discover the love of getting the job done on a 10mm2 package.
• ivanjermakov
  HN title entropy record?
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  Rochus
  They claim that the chip has an "MMU". But unfortunately this doesn't seem to be a true RISC-V MMU (according to the Sv32 specification) integrated into the CPU core itself, but just a peripheral designed for memory mapped SPI flash and PSRAM. So as far as I understand there is no true process isolation with page faults and dynamic paging.
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  moepstar
  I believe this is the first ESP to gain Ethernet capability?I totally wish that a board would come with PoE…Because as it is right now, powering a fleet of those with USB power supplies is annoying as fsck…
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  urba_
  I don’t trust Espressif’s releases, I am still waiting for ESP32-P4 to hit distributors. It is now more than 2 years and 3rd chip revision
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  Mashimo
  Oh neat. Zigbee support.I wonder if I at some point can create low power devices with EspHome for home assistant. I assume this should use less power than connecting to wifi?
• kunver
  Soon espressif will add TPU to their chips.
• ricardobeat
  I hope this one has multiple radios so you can actually use BT/Wifi/Thread simultaneously.
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  volemo
  How do Espressif’s RISC-V cores compare to existing ARM or RISC-V options in terms of power efficiency (computational power / electrical power)?
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  MrBuddyCasino
  > high-speed 250 MHz 8-bit DDR PSRAM with concurrent flash and PSRAM accessThis is perhaps lost in the noise but IMO a large deal. PSRAM starting to get serious bandwidth.
• bestouff
  Is there something that match those elsewhere ?
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  amelius
  Does it run Linux?
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  wosined
  The ESP32 boards I own have bad support and are a bit of a hit and miss. (arduino nano esp32) Did this get better? Or is the support still messy?
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  logicallee
  Roughly how much do you think this costs?
• burnt-resistor
  Interesting.Although, I'd like to seem some non-paid blogger head-to-head reviews benchmarking instruction cycle efficiency per power of comparable Arm vs. ESP32 Xtensa LX6* and RISC-V parts.* Metric crap tons of WROOM parts are still available and ancient ESP8266 probably too.
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  anymouse123456
  Since the Snowden leaks in 2013, it just doesn't make sense that *any* foreign customers would put US technology inside their firewall. But they do.It shocks me even more that any Western customer would do the same with network-connected Chinese chips. But we do.The Espressif chips are truly incredible value, but what are we doing here?Is there any doubt that these don't represent a major attack surface if a conflict were to heat up?If you had network-connected chips of your own design inside every household of your adversary, what could you do with that?