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- #include <FastLED.h>
- #include <math.h>
- // How many leds in your strip?
- #define NUM_LEDS 9
- // For led chips like Neopixels, which have a data line, ground, and power, you just
- // need to define DATA_PIN. For led chipsets that are SPI based (four wires - data, clock,
- // ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN
- #define DATA_PIN 3
- #define CLOCK_PIN 13
- #define m_brightness 10
- float val = 0.0f;
- int a4;
- // Define the array of leds
- CRGB leds[NUM_LEDS];
- void setup() {
- FastLED.setBrightness(m_brightness);
- // Uncomment/edit one of the following lines for your leds arrangement.
- // FastLED.addLeds<TM1803, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<TM1804, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<TM1809, DATA_PIN, RGB>(leds, NUM_LEDS);
- FastLED.addLeds<WS2811, DATA_PIN, BRG>(leds, NUM_LEDS);
- // FastLED.addLeds<WS2812, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<WS2812B, DATA_PIN, RGB>(leds, NUM_LEDS);
- //FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
- // FastLED.addLeds<APA104, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<UCS1903, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<UCS1903B, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<GW6205, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<GW6205_400, DATA_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<WS2801, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<SM16716, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<LPD8806, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<P9813, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<APA102, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<DOTSTAR, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<WS2801, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<SM16716, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<LPD8806, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<P9813, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<APA102, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
- // FastLED.addLeds<DOTSTAR, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
- Serial.begin(9600);
- }
- void loop() {
- // Turn the LED on, then pause
- val = analogRead(A4);
- a4 = round(log(val) * 1.5f);
- Serial.print(a4);
- Serial.print(" / 9");
- Serial.println();
- for (int i = 0; i < NUM_LEDS; i++) {
- if (i <= a4) {
- leds[i] = CRGB::Red;
- }
- else {
- leds[i] = CRGB::Black;
- }
- }
- FastLED.show();
- delay(500);
- }
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