Of interest is this blog on the ESP32 FP perofrmance, versus the STM32F7 (which can easily run  simultaneous encode/decode on my setup).

the author appears to have done his homework

https://blog.classycode.com/esp32-floating-point-performance-6e9f6f567a69

The STM32F7 appears to be between 10 and 100  times faster on various jobs, the author concluded the ESP32 may be software emulating.

more:

https://www.esp32.com/viewtopic.php?f=14&t=800

others interpreted as just a very slow FPU, OR the scheduler was getting in the way of the ESP32 performance, and tuning was required to get perfornamce.



On 8/04/2018 6:45 AM, Bruce Perens wrote:
> The ESP only has a 12 bit ADC and an 8 bit A



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