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One of the comments on this site pointed out performance issues with the esp32. I never worked with IoT devices or these boards but I would like to dabble since
by Escapado 3y ago
One of the comments on this site pointed out performance issues with the esp32. I never worked with IoT devices or these boards but I would like to dabble since they are relatively inexpensive but it got me to look up and find out that the esp32 is manufactured in a 40nm process node. Are there like newer iterations with more performance at similar power budgets manufactured at more advanced nodes?
- gh02t 3y agoNot really. There are newer iterations of the chips (including RISCV and Zigbee/Thread versions) but you won't see drastic performance/power improvements. Performance limitations are par for the course for this segment of the market, it's the tradeoff you make. There are also better SoC families that can get you a better tradeoff, but there aren't many as friendly to hobbyists as the ESP32. Maybe Nordic, or going into something more like a small SBC like the Pi Zero? That said the ESP32 is far more powerful than you need for the vast majority of home automation type devices, it's only a handful of more intensive tasks like streaming video or ML where you start to run into issues. Even then you can often still do quite a lot if you're clever.
- Max-q 3y ago2 cores of 240 MHz RISC is quite powerful. 40nm is not bad for microcontrollers. For example, the competing nRF52 series from Nordic is made on 55nm process.