ESP32 Forum

I'm using "DOIT ESP32 DEVKIT V1".When applied the below code, there are about ten milliseconds between readings. It is unknown what the controller is doing during this time.
#Code:

void setup() {
Serial.begin(115200);

}

void loop() {

Serial.println(millis());

}

#Sambel of result in Serial monitor:

56469
56469
56469
56469
56469
56469
56469
56469
56469
56469
56469
56469
56479
56479
56480
56480
56480
56480
56480
56480

It's sending the millis to your serial monitor. That takes time as well. It doesn't for the first bunch of readings as there is a buffer that slowly fills up.