/*
    Description: Control RGB Unit to scroll through three colors of red, green and blue
    Please install library before compiling:  
    AdaFruit NeoPixel: https://github.com/adafruit/Adafruit_NeoPixel
*/
#include <Adafruit_NeoPixel.h>
#include <M5Stack.h>

// Which pin on the Arduino is connected to the NeoPixels?
// On a Trinket or Gemma we suggest changing this to 1
#define PIN            26
// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS      3

// When we setup 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 pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

int delayval = 150; // delay for half a second

void setup() {
  M5.begin();
  M5.Power.begin();

  pixels.begin(); // This initializes the NeoPixel library.
  M5.Lcd.setTextFont(4);
  M5.Lcd.setCursor(70, 100, 4);
  M5.Lcd.println(("RGB Example"));
}

void loop() {
  pixels.setPixelColor(0, pixels.Color(100,0,0)); // Moderately bright red color.
  pixels.setPixelColor(1, pixels.Color(0,100,0)); // Moderately bright green color.
  pixels.setPixelColor(2, pixels.Color(0,0,100)); // Moderately bright blue color.

  pixels.show(); // This sends the updated pixel color to the hardware.
  delay(delayval); // Delay for a period of time (in milliseconds)

  pixels.setPixelColor(0, pixels.Color(0,100,0));
  pixels.setPixelColor(1, pixels.Color(0,0,100));
  pixels.setPixelColor(2, pixels.Color(100,0,0));
  pixels.show();
  delay(delayval);

  pixels.setPixelColor(0, pixels.Color(0,0,100));
  pixels.setPixelColor(1, pixels.Color(100,0,0));
  pixels.setPixelColor(2, pixels.Color(0,100,0));
  pixels.show();
  delay(delayval);

  // pixels.setPixelColor(0, pixels.Color(100,100,100));
  // pixels.setPixelColor(1, pixels.Color(100,100,100));
  // pixels.setPixelColor(2, pixels.Color(100,100,100));
  // pixels.show();
  // delay(delayval);
}