#include <Adafruit_NeoPixel.h>
#include <PIR.h>

const byte PIR = 35;
const byte dataPin = 32;
const byte LEDNUM = 16;

Adafruit_NeoPixel ring = Adafruit_NeoPixel(LEDNUM, dataPin, NEO_GRB + NEO_KHZ800);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(PIR, INPUT);
  ring.begin();
  ring.show();  
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
  if(digitalRead(PIR)){
    generateRandPat();
    Serial.println("recieved input");
  }
  delay(10);
}

void generateRandPat() {
  byte r = random(0, 255);
  byte g = random(0, 255);
  byte b = random(0, 255);

  for(int i=0; i<LEDNUM; i++){
    ring.setPixelColor(i, r, g, b);
    ring.show();
    delay(50);
  }
}