ESP8266 Community Forum

Hi,

which is the SDK inside the ESP8266 Core for Arduino? I asked to the chip with the ESP.getSdkVersion() and ESP.getCoreVersion() and I got : SDK.:1.5.3(aec24ac9) Core.:2_3_0
but I see on the Espressif site that there are multiple version like NONOS or RTOS etc...
Which is the SDK?
Thanks

When flashing Arduino core, you will be owerwriting the original Espressif firmware, so you will be losing NONOS or RTOS (AT-commands).
If needed, you can always reflash it back to Espressif firmware at a later time.

Arduino Core is built using the NONOS SDK.

Ok,

so is it the NONOS 1.5.3(aec24ac9)?