AutomatedPantryLight2.ino

/*
  Ultrasonic Sensor HC-SR04 and 2 LED Strip that utlizes NeoPixel library

  by Daleon L
  www.twitter.com/iamDaleon
  www.github.com/iamDaleon
*/


#include <Adafruit_NeoPixel.h>
// #ifdef __AVR__
//  #include <avr/power.h> // Required for 16 MHz Adafruit Trinket
// #endif
// Which pin on the Arduino is connected to the NeoPixels?
#define NUMPIXELS = 60, STRIP1 = 11, STRIP2 = 12 // Strip light & NeoPixels defined

// defines pins numbers for the Ultrasonic Sensor HC-SR04
const int trigPin = 2, echoPin = 4;

// When setting up the NeoPixel library, we tell it how many pixels,
// and which pin to use to send signals. Note that for older NeoPixel
// strips you might need to change the third parameter -- see the
// strandtest example for more information on possible values.
Adafruit_NeoPixel pixels1(NUMPIXELS, STRIP1, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel pixels2(NUMPIXELS, STRIP2, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 20000 // Time (in milliseconds) to pause between pixels

// defines variables
long duration;
int distance;
void setup() {
  pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
  pinMode(echoPin, INPUT); // Sets the echoPin as an Input
  Serial.begin(9600); // Starts the serial communication

  pixels1.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
  pixels2.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
}
void loop() {
  // Clears the trigPin
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  // Sets the trigPin on HIGH state for 10 micro seconds
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  // Reads the echoPin, returns the sound wave travel time in microseconds
  duration = pulseIn(echoPin, HIGH);
  // Calculating the distance
  distance = duration * 0.034 / 2;
  // Prints the distance on the Serial Monitor
  Serial.print("Distance: ");
  Serial.println(distance);
  if(distance >= 8){
    pixels1.clear(); // Set all pixel colors to 'off'
    pixels2.clear(); // Set all pixel colors to 'off'

  // The first NeoPixel in a strand is #0, second is 1, all the way up
  // to the count of pixels minus one.
  for(int i=0; i<NUMPIXELS; i++) { // For each pixel...

    // pixels.Color() takes RGB values, from 0,0,0 up to 255,255,255
    // Here we're using a moderately bright bluish green color:
    pixels1.setPixelColor(i, pixels1.Color(240, 237, 225));
    pixels2.setPixelColor(i, pixels2.Color(240, 237, 225));

    pixels1.show();   // Send the updated pixel colors to the hardware.
    pixels2.show();   // Send the updated pixel colors to the hardware.
    }

    delay(DELAYVAL); // Pause before next pass through loop
  }else if(distance <= 7){
    pixels1.show();
    pixels2.show();
    pixels1.clear(); // Set all pixel colors to 'off'
    pixels2.clear(); // Set all pixel colors to 'off'
  }
}