ws2815_example.ino

/* -------------------------------------------------------------------------- */
/*                     WS2815 using UNO by Modulemore.com                     */
/* -------------------------------------------------------------------------- */

/* --------------------------------- Pinout --------------------------------- */
// UNO  ----   WS2815
// D2            DI
// GND           GND

#include <Arduino.h>
#include <FastLED.h>

// How many leds in your strip?
#define NUM_LEDS 60*4 
 
#define DATA_PIN 2 

// Define the array of leds
CRGB leds[NUM_LEDS];

void setup() { 
	Serial.begin(115200);
	Serial.println("resetting");
	FastLED.addLeds<WS2812B,DATA_PIN,RGB>(leds,NUM_LEDS); //สามารถใช้ WS2812B สำหรับ WS2815 ได้
	FastLED.setBrightness(84); //ความสว่างสูงสุด = 255
}

void fadeall() { for(int i = 0; i < NUM_LEDS; i++) { leds[i].nscale8(250); } }

void loop() { 
	static uint8_t hue = 0;
	Serial.print("x");
	// First slide the led in one direction
	for(int i = 0; i < NUM_LEDS; i++) {
		// Set the i'th led to red 
		leds[i] = CHSV(hue++, 255, 255);
		// Show the leds
		FastLED.show(); 
		// now that we've shown the leds, reset the i'th led to black
		// leds[i] = CRGB::Black;
		fadeall();
		// Wait a little bit before we loop around and do it again
		delay(10);
	}
	Serial.print("x");

	// Now go in the other direction.  
	for(int i = (NUM_LEDS)-1; i >= 0; i--) {
		// Set the i'th led to red 
		leds[i] = CHSV(hue++, 255, 255);
		// Show the leds
		FastLED.show();
		// now that we've shown the leds, reset the i'th led to black
		// leds[i] = CRGB::Black;
		fadeall();
		// Wait a little bit before we loop around and do it again
		delay(10);
	}
}