ESP32 delay required after Serial.begin

Projects Programming
2

The processor is doing stuff (including with the Serial port) right after start up. You only need the delay() once, right after Serial.begin(). I typically use 1000ms just to be on the safe side. I do the same thing for boards whose ``Serial``` port is native USB. In fact, for portability, I do it with code for all boards.

void setup() {
  Serial.begin(115200);
  delay(1000);
  for (int i = 0; i < 10; i++) {

    Serial.println(i);
  }
  Serial.println("---");
}