#include <Adafruit_NeoPixel.h>
#include <DHT.h>

int dht_pin=2;
int neo_pin=9;
int no_led=16;

Adafruit_NeoPixel strip=Adafruit_NeoPixel(no_led, neo_pin);
DHT dht(dht_pin, DHT22);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println("Humidity and Temperature Test!");
  dht.begin();
  strip.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
  float humidity=dht.readHumidity();
  float temperature= dht.readTemperature();

  if (humidity<45 && temperature<45)
  {
    set_colour(strip.Color(0,255,0));
    delay(500);
  }
  else
  {
    set_colour(strip.Color(255,0,0));
    delay(500);
  }
  Serial.print(" Humidity: ");
  Serial.print( humidity);
  Serial.print(" Temperature : ");
  Serial.println( temperature);

}

int set_colour(uint32_t col)
{
  for (int i=0; i<no_led; i++)
  {
    strip.setPixelColor(i,strip.Color(255,255,0));
    strip.show();
    delay(200);
    strip.setPixelColor(i,col);
    strip.show();
    delay(500);
  }
}