This is a custom version of arc reactor.

It is wereable using an elastic band.

It is designed to fit an arduino nano board an a Neopixel led ring (12 leds).

Can be powered by a power bank through a usb cable and switched on and off with the integrated switch on the power bank.

We add also the arduino code for an easy setup (leds start immediatly with a beautiful shading effect).

This is the Arduino code (copy and paste in your Arduino Ide):

// board used:arduino Nano

//light used: Neopixel 12 led

#include

#ifdef __AVR__

#include

#endif

// Which pin on the Arduino is connected to the NeoPixels?

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

// How many NeoPixels are attached to the Arduino?

#define NUMPIXELS 12 // Popular NeoPixel ring size

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, 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

pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)

for (int b=0; b<255; b++){

pixels.setBrightness(b);

for(int i=0; i) { // For each pixel...

pixels.setPixelColor(i, pixels.Color(255, 255, 255));

pixels.show(); // Send the updated pixel colors to the hardware.

}

delay(10);

}

}

void loop() {

}