#include <SoftwareSerial.h>
#include <Adafruit_NeoPixel.h>
#define rxPin D2     // recieves signal from bridge 
#define txPin D3     // transmit signal to the bridge

SoftwareSerial mySerial(rxPin, txPin);

int Power = 11;
int PIN  = 12;
#define NUMPIXELS 1

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

const int node = 2; // bus address
char incomingByte;
int user = 0;

void setup() {
  pixels.begin();
  pinMode(Power, OUTPUT);
  digitalWrite(Power, HIGH);
  Serial.begin(9600);
    while (!Serial) {
  }
  mySerial.begin(9600);


}

void loop() {

 if (mySerial.available()) {
       incomingByte = mySerial.read();
       user = incomingByte;
  // Serial.println(user);
         
   if (user == node) {

   //   pinMode(txPin, OUTPUT);

      mySerial.write(node);

  //    pinMode(txPin, INPUT);

      pixels.clear();
      pixels.setPixelColor(0, pixels.Color(15, 25, 205));
      delay(400);
      pixels.show();

      delay(200);
      pixels.clear();
      pixels.show();
    }


  }
}