Thread

1. jameshart · 1790255500 · focus · HN ↗

   The range of difference in capabilities of different boards branded ESP32 is getting larger. Makes it tricky to figure out when someone says ‘you can run this on an ESP32’ what level of hardware investment is required.

   1. philipallstar · 1790257295 · focus · HN ↗

      I am really struggling to understand what ESP32 is. I've got into adjacent things a bit recently, but haven't figured that one out yet.

      1. atwrk · 1790264837 · focus · HN ↗

         At its core those all ESP32 are microcontrollers with RISC-V cores[0] and integrated wifi. There's a plethora of peripheral configurations, hence all those ESP32-* variations. This one even has Gbit ethernet and audio, bit still, at it's core (hah), RISC-V with only a few hundred MHz and 512kB RAM. So the peripherals are now similar to a Raspberry Pi, but not the CPU part itself.

         [0] older versions had Xtensa cores, not RISC-V.

         1. rpcope1 · 1790268814 · focus · HN ↗

            It's worth noting that just because it says ESP32, doesn't mean it has WiFi (see the P4), and yeah not just RISC-V but also xtensa. I think it's more synonymous with "has a very shitty ADC" imo.

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