There is some inconsistency in the ESP32-S31 Series Datasheet Pre-release v0.2 document. I know it's very early, but I was wondering are there TWO HP cores and one LP core, or is the "dual core" of the S31 more like BIG.little in ARM with one HP and one LP core? The document implies two HP cores in ...

IEEE floats don't have "decimal" precision. It depends on the size of the mantissa, and other technical things. What you should do is determine the range of typical values and the allowable tolerance, and do something more along the line of:

if ( abs(x-y) < max_error_tolerable ) { ... } // equiv to ...

Does anyone know if more details about the RISC-V cores have been released? Which extensions will each type have? I know that single-precision float is included in the main cores, but I'm curious as to the full set of extensions planned for each core type.

Is there an eFuse for permanently disabling the transmitter/receiver? In some VERY secure applications, must be 100% certain that the ESP32 cannot transmit nor receive.

https://www.espressif.com/en/support/documents/pcns

In English, to me it reads:
"We didn't change any functionality. We just rearranged some stuff to get a better yield on the fab process."

Could be re-routed parts of the CPU/peripherals, redundancy, smaller lithography. Who knows.

From reading on the forums for a while, I believe that all WIFI/BT code is closed-source and proprietary. To us, we'll never see more than the header files.

The ESP32 is a different CPU than the ESP32-S3 (or ESP32-S3 or ESP32-C series). Those should be available as boards in a recent version of ESP32 module in arduino IDE. Which version of Arduino, and which version of the ESP32 module do you have installed?

It's definitely not the "WROVER" module; that's another chip. I believe that the "ESP32 Dev Module" is what you want to select.

Just shipped a new version (v0.0.5) of Jaguar that gives flashed device a unique id - and a catchy name - so they are easy to find later.


% jag scan
Choose what Jaguar device you want to use:
▸ elegant-disease (address: http://0.0.0.0:49458, 64-bit)
local-bank (address: http://192.168.86.26 ...

https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf
Section 4.6 should have the information you need. I think, however, these measurements are for the ESP32-C3 "chip", and not the values used by a "devkit". The standard devkits used the 1117 LDO power regulator ...