Excellent set of effects here. Bravo! I am wanting to use a few in my ATMEGA328 Pro Trinket 5V. Im aware it is essentially an Arduino Uno.

Your code works perfect, but I am wanting to splice in a single, double, and long press state into this. Ideally 2 separate buttons to have 3 states like this. I am only going to be using 5 animations and an off LED state, but I can not for the life of me, get a button library working with this.

I sat and tried to figure out state machines, and I came up with this simple code, hoping to drop it into yours here, but I can’t get the state machine to work. Any suggestions on implementing these button states? Thanks for any advice at all, because I just keep hitting brick walls and nobody is giving me the time of day.  

#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h> // Required for 16 MHz Adafruit Trinket
#endif

#define LED_PIN    8

#define LED_COUNT 10

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);


const int buttonPin = 3; 
bool secondPress = false;
unsigned long timerOne;
unsigned long timerTwo;
unsigned long pressTime;

void setup(){
  #if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)
  clock_prescale_set(clock_div_1);
#endif

    pinMode(buttonPin, INPUT_PULLUP);
      strip.begin();           // INITIALIZE NeoPixel strip+++++++ object (REQUIRED)
  strip.show();            // Turn OFF all pixels ASAP
  strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255)


}

void loop(){

if(buttonPin == LOW && secondPress == false) //first button press!
   timerOne = millis();
   secondPress = true;
   

if(buttonPin == LOW && secondPress == true) { //second press!
    timerTwo = millis();
    pressTime = timerTwo - timerOne;    //presstime now holds the total time between presses in milliseconds.   

    if(pressTime <= 100);{
functionGo;  // single press
    }
  if (pressTime > 300);{
    functionGo2;  // double press

        //don't forget to reset!
    timerOne = 0;
    timerTwo = 0;
    secondPress = false;
  }
  }
}



void functionGo() {
  colorWipe(strip.Color(255,   0,   0), 50); // Red
  colorWipe(strip.Color(  0, 255,   0), 50); // Green
  colorWipe(strip.Color(  0,   0, 255), 50); // Blue
}

void functionGo2(){
  colorWipe(strip.Color(  0,   0, 255), 50); // Blue
  colorWipe(strip.Color(  0, 255,   0), 50); // Green
  colorWipe(strip.Color(255,   0,   0), 50); // Red 
}

void colorWipe(uint32_t color, int wait) {
      for (int i = 0; i < strip.numPixels(); i++) { // For each pixel in strip...
        strip.setPixelColor(i, color);         //  Set pixel's color (in RAM)
        strip.show();                          //  Update strip to match
      }
    }