72 lines
1.5 KiB
Arduino
72 lines
1.5 KiB
Arduino
// https://starthardware.org/arduino-und-encoder-schaltplan-erklaerung-code/
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#include <Adafruit_NeoPixel.h>
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#define NUMPIXELS 12
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#define LEDPIN 2
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Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, LEDPIN, NEO_GRB + NEO_KHZ800);
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int encoderPinA = 4;
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int encoderPinB = 5;
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int encoderPos = 0;
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int encoderPinALast = LOW;
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int encoderPinANow = LOW;
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long colorNew = 65535;
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long color = 65535;
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void setup() {
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pinMode (encoderPinA, INPUT_PULLUP);
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pinMode (encoderPinB, INPUT_PULLUP);
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Serial.begin (115200);
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delay(150);
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Serial.println("PIXELS");
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pixels.begin(); // initialize NeoPixel library.
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//pixels.setBrightness(40);
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//pixels.fill(pixels.Color(217, 101, 0), 0, NUMPIXELS);
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pixels.fill(pixels.gamma32(pixels.ColorHSV(65535, 255, 190)), 0, NUMPIXELS);
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pixels.show();
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/*
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for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
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pixels.rainbow(firstPixelHue);
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pixels.show();
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delay(10);
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}
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*/
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}
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void loop() {
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encoderPinANow = digitalRead(encoderPinA);
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if ((encoderPinALast == HIGH) && (encoderPinANow == LOW)) {
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if (digitalRead(encoderPinB) == HIGH) {
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encoderPos++;
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colorNew += 4096;
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} else {
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encoderPos--;
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colorNew -= 4096;
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}
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if (colorNew > 65535) {
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colorNew = 0;
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}
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else if (colorNew < 0) {
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colorNew = 65535;
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}
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}
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encoderPinALast = encoderPinANow;
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if (colorNew != color) {
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color = colorNew;
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pixels.fill(pixels.gamma32(pixels.ColorHSV(color, 255, 100)), 0, NUMPIXELS);
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pixels.show();
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Serial.println(color);
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}
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}
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