#include <Adafruit_NeoPixel.h>


#define NEOPOWERPIN 11 // Provides voltage for the built-in NeoPixel
#define NEOPIXELPIN 12 // Datapin for the the built-in NeoPixel

#define NUMPIXELS 1 //Amount of NeoPixels

Adafruit_NeoPixel pixels(NUMPIXELS, NEOPIXELPIN, NEO_RGB + NEO_KHZ800);

#define DELAYVAL 1000 // Time (in milliseconds) to pause between loop

bool blinking = true;

void setup() {
  // put your setup code here, to run once:
  pinMode(LED_BUILTIN, OUTPUT); // initialize digital pin LED_BUILTIN as an output.

  pinMode(NEOPOWERPIN, OUTPUT); // initialize digital pin NEOPOWERPIN as an output.
  digitalWrite(NEOPOWERPIN, HIGH); // Power for the NeoPixel
  
  pixels.begin();

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (blinking) {
    // Blink the NeoPixel
    pixels.clear(); // Set all pixel colors to 'off'
    // We only have one pixel, therefore the first argument (index) is 0
    pixels.setPixelColor(0, pixels.Color(25, 25, 180)); // Nice blue color
    pixels.show(); // Send the updated pixel colors to the hardware.
    delay(DELAYVAL); // wait between
    pixels.clear();
    pixels.setPixelColor(0, pixels.Color(120, 120, 25)); // Nice yellow color
    pixels.show();
    
  } else {
    // Turn of the NeoPixel
    pixels.clear();
    pixels.show();
    // Still blink the small built-it LED
    digitalWrite(LED_BUILTIN, HIGH);
    delay(DELAYVAL);
    digitalWrite(LED_BUILTIN, LOW);
  }
  
  delay(DELAYVAL);

  
  if (Serial.available() > 0) { // If there is incoming bytes in the serial:
    String input_str = Serial.readString(); // This reads the serial buffer to a String
    input_str.trim(); // remove any \r \n whitespace at the end of the String
    Serial.print("You wrote: ");
    Serial.println(input_str); // Send it back to see if this works

    // Set the boolean accordingly
    if (input_str == "blink") {
      Serial.println("Ok, blinking");
      blinking = true;
    } else if (input_str == "stop") {
      Serial.println("Ok, stopping");
      blinking = false;
    }
  }
}