#include <ESP8266WiFi.h>


int ledPin = 2;
void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);

}

void loop() {
    digitalWrite(ledPin, HIGH); // turn the LED on (HIGH is the voltage level)
  delay(1000); // wait for a second
  digitalWrite(ledPin, LOW); // turn the LED off by making the voltage LOW
  Serial.println("Go to sleep");
  delay(1000); // wait for a second
  // ESP.deepSleep(20e6); // 20e6 is 20 microseconds
 // ESP.deepSleep(6000000, WAKE_RF_DEFAULT);  // Sleep for 6 seconds 
  delay(1000);
  delay(100);
}