ESP8266 Community Forum

is there a way at the setup/loop logic to know if the device is powered on for the first time or was waken up from:
ESP.deepSleep(sleepTime, WAKE_RF_DISABLED);

i need to differentiate the two scenarios and do some different logic for each of these cases

The raw NonOS API has a method that will let you find this out, but I don't know if it's in the Arduino API

Check out

struct rst_info *rst_info = system_get_rst_info();

thanks! seems possible with:
rst_info* rinfo = ESP.getResetInfoPtr();