/*
  Based on the ESP8266 Blink by Simon Peter
  Blink the red LED(pin 13), and green LED(pin 12) alternating.
  Build in pushbutton on pin 14 on the ESP-01 module
  This example code is in the public domain

*/
int ledGreen = 13;
int ledRed = 12;
int buttonPin = 14;
int buttonState = 0;

void setup() {
  pinMode(ledGreen, OUTPUT);     // Initialize the LED pin as an output
  pinMode(ledRed, OUTPUT);     // Initialize the LED pin as an output
  pinMode(buttonPin, INPUT); //initialize button pin as input
  Serial.begin(9600);
}

void loop() {
  digitalWrite(ledGreen, HIGH);   // Turn the LED on
  digitalWrite(ledRed, LOW);   // Turn the LED off
  Serial.println("low");
  delay(1000);                      // Wait for a second
  digitalWrite(ledGreen, LOW); 
  digitalWrite(ledRed, HIGH); 
  Serial.println("high");
  delay(500);                      // Wait for half second

  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (buttonState == HIGH) {
    Serial.println("btn high");
  } else {
    Serial.println("btn low");
  }
}