I have an issue with the fadeToBlackBy function which is not fading the LEDs all the way to black…
Brightness is dimmed, but not faded.
THANKS!
***
#define LED_PIN 7
#define NUM_LEDS 9
#define BRIGHTNESS 64
#define LED_TYPE WS2812B
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];
#define fadespeed 200
void setup() {
delay( 1000 ); // power-up safety delay
FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
FastLED.setBrightness(BRIGHTNESS);
Serial.begin(9600);
}
void loop()
{
int last_led = NUM_LEDS-1;
for (int i = 0 ; i< NUM_LEDS ; i++)
{
if(i<last_led) {
leds[i] = CRGB::White;
leds[last_led] = CRGB::White;
FastLED.show();
leds[i].fadeToBlackBy( fadespeed );
leds[last_led].fadeToBlackBy( fadespeed );
}
if(i>last_led) {
leds[i] = CRGB::Green;
leds[last_led] = CRGB::Green;
FastLED.show();
leds[i].fadeToBlackBy( fadespeed );
leds[last_led].fadeToBlackBy( fadespeed );
}
if(i==last_led) {
leds[i] = CRGB::Red;
FastLED.show();
leds[i].fadeToBlackBy( fadespeed );
}
last_led–;
delay(200);
}
}