brightening.ino

/* Increase/decrease brigtness of LED's.
 *  
 * By: Andrew Tuline
 *
 * Date: Mar 21, 2019
 *
 * This is a way to increase the brighness of LED's.
 *
 *
 */

#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                                             // Data pin to connect to the strip.
#define LED_CK 11                                             // Clock pin for WS2801 or APA102.
#define COLOR_ORDER BGR                                       // It's GRB for WS2812 and BGR for APA102.
#define LED_TYPE APA102                                       // Using APA102, WS2812, WS2801. Don't forget to modify LEDS.addLeds to suit.
#define NUM_LEDS 40                                           // Number of LED's.

// Global variables can be changed on the fly.
uint8_t max_bright = 255;                                      // Overall brightness.

struct CHSV ledshsv[NUM_LEDS];                                 // Initialize our CHSV reference array.
struct CRGB leds[NUM_LEDS];                                    // This is what we are displaying.
struct CRGB ledscrgb[NUM_LEDS];                                // Initialize our CRGB reference array.


void setup() {

  Serial.begin(57600);                                        // Initialize serial port for debugging.
  delay(1000);                                                // Soft startup.

 LEDS.addLeds<LED_TYPE,LED_DT,LED_CK,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);   // Use this for WS2801 or APA102
//  LEDS.addLeds<LED_TYPE, LED_DT, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(0xFFB0F0);  // Use this for WS2812
  
  FastLED.setBrightness(max_bright);
  set_max_power_in_volts_and_milliamps(5, 500);               // FastLED Power management set at 5V, 500mA.
  ledshsv[0] = CHSV(32,255,255);                              // Set it to orange as based on https://github.com/FastLED/FastLED/wiki/Pixel-reference
  ledscrgb[3] = CRGB::Purple;
  
} // setup()



void loop () {
  uint8_t beatval = beatsin8(20,0,255); 
  ledshsv[0].val = beatval;                                   // Options are .hue, .sat, .val. I don't like this method as .val goes from 0 to 255,
                                                              // whereas the original .val may not have been that bright.
  hsv2rgb_rainbow(ledshsv, leds, NUM_LEDS);                   // This will convert and copy over the entire CHSV defined array to 'leds'.

  leds[3]= ledscrgb[3];                                       // In this case, I'm just copying over a single pixel from ledscrgb to 'leds'.
//  memmove(ledscrgb, leds, NUM_LEDS*3);                      // You could copy the entire CRGB array.
  
  leds[3].nscale8_video(beatval);                             // Then I'll scale the copied value from 0 to 100%. This is a better method in my opinion.
  
  FastLED.show();
} // loop()