arduino平衡传感器控制灯带展现多种灯光效果的代码

以下是一个基于Arduino的平衡传感器控制灯带展现多种不同灯光效果的代码，其中使用了一个switch语句，根据传感器的读数，选择不同的灯光模式：

#include <FastLED.h>

#define DATA_PIN 6
#define LED_TYPE WS2811
#define COLOR_ORDER GRB
#define NUM_LEDS 60

CRGB leds[NUM_LEDS];

#define SAMPLE_INTERVAL 20 // 20ms sample interval
#define FILTER_FACTOR 0.1 // 10% filtering

const int xPin = A0;
const int yPin = A1;
const int zPin = A2;

float xAcc, yAcc, zAcc;
float xAccFiltered, yAccFiltered, zAccFiltered;

enum LightMode {
  MODE_OFF,
  MODE_COLOR_WIPE,
  MODE_RAINBOW,
  MODE_FADE,
  MODE_STROBE
};

LightMode mode = MODE_OFF;

void setup() {
  Serial.begin(115200);
  FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS);
}

void loop() {
  // Read accelerometer
  xAcc = analogRead(xPin);
  yAcc = analogRead(yPin);
  zAcc = analogRead(zPin);

  // Low-pass filter
  xAccFiltered = (xAcc * FILTER_FACTOR) + (xAccFiltered * (1 - FILTER_FACTOR));
  yAccFiltered = (yAcc * FILTER_FACTOR) + (yAccFiltered * (1 - FILTER_FACTOR));
  zAccFiltered = (zAcc * FILTER_FACTOR) + (zAccFiltered * (1 - FILTER_FACTOR));

  // Convert to tilt angle
  float xTilt = (xAccFiltered - 512) / 1024.0 * 90.0;
  float yTilt = (yAccFiltered - 512) / 1024.0 * 90.0;
  float zTilt = (zAccFiltered - 512) / 1024.0 * 90.0;

  // Map tilt angle to LED index
  int xIndex = map(xTilt, -90, 90, 0, NUM_LEDS - 1);
  int yIndex = map(yTilt, -90, 90, 0, NUM_LEDS - 1);
  int zIndex = map(zTilt, -90, 90, 0, NUM_LEDS - 1);

  // Choose light mode based on tilt angle
  if (zTilt < -45) {
    mode = MODE_COLOR_WIPE;
  } else if (zTilt < 0) {
    mode = MODE_RAINBOW;
  } else if (zTilt < 45) {
    mode = MODE_FADE;
  } else {
    mode = MODE_STROBE;
  }

  // Update LED colors
  switch (mode) {
    case MODE_OFF:
      fill_solid(leds, NUM_LEDS, CRGB::Black);
      break;
    case MODE_COLOR_WIPE:
      colorWipe(CRGB::Red, 50);
      break;
    case MODE_RAINBOW:
      rainbowCycle(20);
      break;
    case MODE_FADE:
      fadeToBlackBy(leds, NUM_LEDS, 10);
      int hue = map(xTilt, -90, 90, 0, 255);
      leds[xIndex] = CHSV(hue, 255, 255);
      break;
    case MODE_STROBE:
      fill_solid(leds, NUM_LEDS, CRGB::White);
      break;
  }

  // Show LED colors
  FastLED.show();

  // Wait for next sample
  delay(SAMPLE_INTERVAL);
}

void colorWipe(CRGB color, int delayTime) {
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = color;
    FastLED.show();
    delay(delayTime);
  }
}

void rainbowCycle(int delayTime) {
  uint8_t hue = 0;
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CHSV(hue, 255, 255);
    hue += 256 / NUM_LEDS;
  }
  FastLED.show();
  delay(delayTime);
  for (int j = 0; j < 8; j++) {
    for (int i = 0; i < NUM_LEDS; i++) {
      leds[i].fadeToBlackBy(8);
    }
    hue += 16;
    for (int i = 0; i < NUM_LEDS; i++) {
      leds[i] |= CHSV(hue, 255, 255);
    }
    FastLED.show();
    delay(delayTime);
  }
}

该代码使用了一个枚举类型来表示不同的灯光模式，并使用switch语句根据传感器的读数选择不同的模式。每个模式都有一个函数来设置LED颜色，如`colorWipe()`和`rainbowCycle()`。您可以根据需要添加或修改灯光模式。