Lamp with WS2812B led

thingiverse

I design a lamp with three strips of WS2812B LEDs. Total 39 LEDs and an Arduino Nano to control the light. Adafruit effect, also known as FastLED. Please note I am not a programmer so this code is not professionally made but it works for me: https://gofile.io/?c=ZmQHGg #include <FastLED.h> #define NUM_LEDS 39 #define BRIGHTNESS 170 CRGB leds[NUM_LEDS]; void setup() { delay(3000); // power-up safety delay FastLED.addLeds<WS2812B, 3, GRB>(leds, 0, 13); // Pin 3, LED 0 to 13 FastLED.addLeds<WS2812B, 5, GRB>(leds, 13, 26); // Pin 5, LED 13 to 26 FastLED.addLeds<WS2812B, 7, GRB>(leds, 26, 39); // Pin 7, LED 26 to 39 FastLED.setBrightness(BRIGHTNESS); } void loop() { randomSeed(millis()); int wait = 30; rainbow(wait); } void rainbow(uint8_t wait) { uint16_t i, j; for (j = 0; j < 256; j++) { for (i = 0; i < NUM_LEDS; i++) { CRGB ledColor = wheel((i * 1 + j) & 255); leds[i] = ledColor; } FastLED.show(); FastLED.delay(wait); } } CRGB wheel(byte WheelPos) { CRGB color; if (WheelPos < 85) { color.r = WheelPos * 3; color.g = 255 - WheelPos * 3; color.b = 0; } else if (WheelPos < 170) { WheelPos -= 85; color.r = 255 - WheelPos * 3; color.g = 0; color.b = WheelPos * 3; } else { WheelPos -= 170; color.r = 0; color.g = WheelPos * 3; color.b = 255 - WheelPos * 3; } return color; }