rainbow_wave

/* rainbow_wave

By: Andrew Tuline

Date: Jan, 2020

A very simple rainbow wave and rainbow march using FastLED. That being said, I wouldn't normally use
the fill_rainbow function in production code. Rather, I would use palettes.

*/


#define FASTLED_ALLOW_INTERRUPTS 0                            // Used for ESP8266.
#include "FastLED.h"                                          // FastLED library.

#if FASTLED_VERSION < 3001000
#error "Requires FastLED 3.1 or later; check github for latest code."
#endif

// Fixed definitions cannot change on the fly.
#define LED_DT 12                                             // Serial data pin
#define LED_CK 11                                             // Clock pin for WS2801 or APA102
#define COLOR_ORDER GRB                                       // It's GRB for WS2812B and GBR for APA102
#define LED_TYPE WS2812                                       // What kind of strip are you using (APA102, WS2801 or WS2812B)?
#define NUM_LEDS 60                                           // Number of LED's

// Initialize changeable global variables.
uint8_t max_bright = 255;                                     // Overall brightness definition. It can be changed on the fly.

struct CRGB leds[NUM_LEDS];                                   // Initialize our LED array.


void setup() {

  Serial.begin(115200);

  LEDS.addLeds<LED_TYPE, LED_DT, COLOR_ORDER>(leds, NUM_LEDS);         // For WS2812B
//  LEDS.addLeds<LED_TYPE, LED_DT, LED_CK, COLOR_ORDER>(leds, NUM_LEDS);   // For APA102 or WS2801

  FastLED.setBrightness(max_bright);
  FastLED.setMaxPowerInVoltsAndMilliamps(5, 1000);              // FastLED power management set at 5V, 500mA

} // setup()



void loop () {

  rainbow_wave(10, 10);                                      // Speed, delta hue values.
  FastLED.show();

} // loop()



void rainbow_wave(uint8_t thisSpeed, uint8_t deltaHue) {     // The fill_rainbow call doesn't support brightness levels.

// uint8_t thisHue = beatsin8(thisSpeed,0,255);                // A simple rainbow wave.
 uint8_t thisHue = beat8(thisSpeed,255);                     // A simple rainbow march.

 fill_rainbow(leds, NUM_LEDS, thisHue, deltaHue);            // Use FastLED's fill_rainbow routine.

} // rainbow_wave()