#include <Adafruit_NeoPixel.h>

#ifdef __AVR__

#include <avr/power.h> // Required for 16 MHz Adafruit Trinket

#endif

#define LETTERSPIN 6 // On Trinket or Gemma, suggest changing this to 1

#define BATTERYPIN 10

#define NUMPIXELS 20 // Popular NeoPixel ring size

Adafruit_NeoPixel pixelsLETTERS(NUMPIXELS, LETTERSPIN, NEO_GRB + NEO_KHZ800);

Adafruit_NeoPixel pixelsBATTERY(NUMPIXELS, BATTERYPIN, NEO_GRB + NEO_KHZ800);

#define DELAYVAL 500 // Time (in milliseconds) to pause between pixels

void setup() {

#if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)

clock_prescale_set(clock_div_1);

#endif

pixelsLETTERS.begin();

pixelsBATTERY.begin();

}

void loop() {

pixelsLETTERS.clear();

for(int i=0; i<NUMPIXELS; i++) {

pixelsLETTERS.setPixelColor(i, pixelsLETTERS.Color(0, 0, 255));

pixelsLETTERS.show();

delay(DELAYVAL);

pixelsBATTERY.clear();

}

for(int i=0; i<NUMPIXELS; i++) {

pixelsBATTERY.setPixelColor(i, pixelsBATTERY.Color(100, 100, 55));

pixelsBATTERY.show();

delay(DELAYVAL);

}

}