M5Stack Christmas Rainbow LED Strip

This is a demo for driving a Neopixel LED Strip with M5Stack Atom Lite for X-mas tree decoration.

Install FastLED library using Arduino IDE > Tools > Manage Libraries...

Connect Neopixel LED strip to Atom Lite

[Neopixel Strip] [Atom Lite]

GND. ----------------GND

5V --------------------5V

Data------------------G25

Create a new sketch in the Arduino IDE and copy and paste the code below and compile/upload to the Atom Lite.

#include <FastLED.h>

const byte PIN_LEDSTRIP = 25; 
const byte NUM_LEDS = 7;

CRGB ledStrip[NUM_LEDS];

uint8_t rainbow[] = {CRGB::Violet, CRGB::Indigo, CRGB::Blue, CRGB::Green, CRGB::Yellow, CRGB::Orange, CRGB::Red};

void setup()
{

  delay(1000);
  FastLED.addLeds<NEOPIXEL, PIN_LEDSTRIP>(ledStrip, NUM_LEDS);
  FastLED.clear();
  FastLED.setBrightness(10);;
  FastLED.show();
}
void loop() {
    ledStrip[0] = CRGB::Violet; FastLED.show(); delay(900);
    ledStrip[0] = CRGB::Black; FastLED.show(); delay(50);
    ledStrip[1] = CRGB::Indigo; FastLED.show(); delay(900);
    ledStrip[1] = CRGB::Black; FastLED.show(); delay(50);
    ledStrip[2] = CRGB::Blue; FastLED.show(); delay(900);
    ledStrip[2] = CRGB::Black; FastLED.show(); delay(50);
    ledStrip[3] = CRGB::Green; FastLED.show(); delay(900);
    ledStrip[3] = CRGB::Black; FastLED.show(); delay(50);
    ledStrip[4] = CRGB::Yellow; FastLED.show(); delay(900);
    ledStrip[4] = CRGB::Black; FastLED.show(); delay(50);
    ledStrip[5] = CRGB::Orange; FastLED.show(); delay(900);
    ledStrip[5] = CRGB::Black; FastLED.show(); delay(50);    
    ledStrip[6] = CRGB::Red; FastLED.show(); delay(900);
    ledStrip[6] = CRGB::Black; FastLED.show(); delay(50);

}