/***
 *       ____ ___ ____       _                         _
 *      / ___/ _ \___ \     / \   _ __ ___  _ __   ___| |
 *     | |  | | | |__) |   / _ \ | '_ ` _ \| '_ \ / _ \ |
 *     | |__| |_| / __/   / ___ \| | | | | | |_) |  __/ |
 *      \____\___/_____| /_/__ \_\_| |_| |_| .__/ \___|_|         _
 *     | | | |/ _|_   _| / ___|| |_ _   _| |_| |_ __ _  __ _ _ __| |_
 *     | |_| | |_  | |   \___ \| __| | | | __| __/ _` |/ _` | '__| __|
 *     |  _  |  _| | |    ___) | |_| |_| | |_| || (_| | (_| | |  | |_
 *     |_| |_|_|   |_|   |____/ \__|\__,_|\__|\__\__, |\__,_|_|   \__|
 *                                               |___/
 */

// Small example, with CO2 sensor and LED ring.
// Required libraries:
//  LED Ring:
#include "src/lib/Adafruit_NeoPixel/Adafruit_NeoPixel.h"

// How many LEDs on the ring?
const int LED_COUNT = 16;
// Where is LED ring connected to micro-controller?
const int NEOPIXELS_PIN = 5;

// Define LED ring and CO2 sensor
Adafruit_NeoPixel led_ring(LED_COUNT, NEOPIXELS_PIN, NEO_GRB + NEO_KHZ800);

// Define variables
uint32_t n;

// The code in setup() will be run once, at startup.
void setup() {
  // Transmission speed
  Serial.begin(115200);

  // Initialize LED ring.
  led_ring.begin();
  led_ring.setBrightness(255);

}

// The code in loop() will be run as long as the micro-controller is powered up, in an infinite loop.
void loop() {
  // First, disable every LED
  led_ring.clear();
  // Check if air is good enough
  for (int i = 0; i < LED_COUNT; ++i) {
    if ((n >> i) & 1) {
      led_ring.setPixelColor(i, 0x00ff84); // Sophie BlueGreen
//      led_ring.setPixelColor(i, led_ring.ColorHSV(n * 1023 + 60000));
    }
  }
  Serial.print(n);
  Serial.print(" = ");
  Serial.println(n, BIN);
  led_ring.show();
  n = n + 1;

// Wait half a second before next loop.
// Micro-controller might crash if it has too much work to do. Please don't remove it!
  delay(1000);
}