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我正在开发一个可寻址 LED 灯条的程序。它正在工作，此时我正在努力使我的代码更好。我有 3 个 LED 灯条，我做了一个所有三个都必须做的功能。在函数中我想指定哪一个需要更新，所以我使用了属性，但这似乎不起作用。我在 FastLed 文档中找不到这个。

//Number of leds powered
int led_state_1 = 0;
int led_state_2 = 0;
int led_state_3 = 0;

// This is an array of leds.  One item for each led in your strip.
CRGB leds1[NUM_LEDS];
CRGB leds2[NUM_LEDS];
CRGB leds3[NUM_LEDS];

void CheckAndUpdateLed(CRGB LedArray, int led_state){
     resetLedStrip(LedArray);
     for(int whiteLed = 0; whiteLed < led_state; whiteLed = whiteLed + 1) {
      // Turn our current led on to white, then show the leds
      LedArray[whiteLed] = CRGB::White;
      // Show the leds (only one of which is set to white, from above)
      FastLED.show();
   }
}

当我将 LedArray 更改为 leds1 时，它正在工作。我将该函数称为 CheckAndUpdateLed(leds1, led_state_1);

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1 回答 1

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我认为我的问题有点不清楚，对此感到抱歉。我想出了另一种方法。我不是用 1 个 LED 灯条检查它们，而是在同一个功能中检查它们。 

#define NUM_STRIPS 3
#define NUM_LEDS_PER_STRIP 15
CRGB leds[NUM_STRIPS][NUM_LEDS_PER_STRIP];


int led_states[] = {0, 0, 0};    

void CheckAndUpdateLeds(){
      //resets the leds to black
      resetLedStrips();
      // This outer loop will go over each LED strip, one at a time
      for(int x = 0; x < NUM_STRIPS; x++) {
        // This inner loop will go over each led in the current strip, one at a time till the amount of light is the same as in the led_state
         for(int led = 0; led < led_states[x]; led = led + 1) {
          // Turn our current led on to white, then show the leds
          leds[x][led] = CRGB::White;
          FastLED.show();
        }
      }
    }

    void resetLedStrips(){
        for(int x = 0; x < NUM_STRIPS; x++) {
           for(int led = 0; led < NUM_LEDS_PER_STRIP; led = led + 1) {
             leds[x][led] = CRGB::Black;
           }
       }
    }
于 2020-04-15T16:08:12.230 回答