175 lines
3.8 KiB
Arduino
175 lines
3.8 KiB
Arduino
// https://lastminuteengineers.com/rotary-encoder-arduino-tutorial/
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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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// Rotary Encoder Inputs
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#define CLK 8
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#define DT 9
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#define SW 10
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#define CLK2 5
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#define DT2 4
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#define SW2 3
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int currentStateCLK;
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int currentStateCLK2;
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int lastStateCLK;
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int lastStateCLK2;
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String currentDir = "";
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int btnState;
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unsigned long lastButtonPress = 0;
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#define HUE_STEP 1200
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#define VAL_STEP 10
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long hue = 0; // 0-65535 https://adafruit.github.io/Adafruit_NeoPixel/html/class_adafruit___neo_pixel.html#a1f16aee5b96e16e62598f826e292b23b
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int saturation = 0; // 0-255
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int value = 60; // 0-255
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void setup() {
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Serial.begin(115200);
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pinMode(CLK,INPUT);
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pinMode(DT,INPUT);
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pinMode(SW, INPUT_PULLUP);
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// Read the initial state of CLK
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lastStateCLK = digitalRead(CLK);
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pixels.begin(); // initialize NeoPixel library.
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pixels.fill(pixels.gamma32(pixels.ColorHSV(hue, saturation, value)), 0, NUMPIXELS);
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pixels.show();
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Serial.println("PIXELS");
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}
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void loop() {
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currentStateCLK = digitalRead(CLK);
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currentStateCLK2 = digitalRead(CLK2);
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// If last and current state of CLK are different, then pulse occurred
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if (currentStateCLK != lastStateCLK && currentStateCLK == 1) {
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btnState = digitalRead(SW);
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if (digitalRead(DT) != currentStateCLK) {
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currentDir ="CW";
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if (btnState == LOW) {
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hue += HUE_STEP;
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if (hue > 65535) {
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hue = 65535;
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saturation = 0;
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}
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else {
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saturation = 255;
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}
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}
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else {
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value += VAL_STEP;
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if (value > 255) {
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value = 255;
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}
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}
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} else {
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currentDir ="CCW";
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if (btnState == LOW) {
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hue -= HUE_STEP;
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if (hue < 0) {
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hue = 0;
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saturation = 0;
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}
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else {
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saturation = 255;
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}
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}
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else {
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value -= VAL_STEP;
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if (value < 30) {
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value = 0;
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}
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}
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}
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Serial.print("Direction: ");
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Serial.print(currentDir);
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Serial.print(" | Hue: ");
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Serial.print(hue);
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Serial.print(" | Sat: ");
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Serial.print(saturation);
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Serial.print(" | Val: ");
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Serial.println(value);
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pixels.fill(pixels.gamma32(pixels.ColorHSV(hue, saturation, value)), 0, NUMPIXELS);
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pixels.show();
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}
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else if (currentStateCLK2 != lastStateCLK2 && currentStateCLK2 == 1) {
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btnState = digitalRead(SW2);
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if (digitalRead(DT2) != currentStateCLK2) {
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currentDir ="CW";
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if (btnState == LOW) {
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hue += HUE_STEP;
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if (hue > 65535) {
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hue = 65535;
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saturation = 0;
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}
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else {
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saturation = 255;
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}
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}
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else {
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value += VAL_STEP;
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if (value > 255) {
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value = 255;
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}
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}
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} else {
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currentDir ="CCW";
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if (btnState == LOW) {
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hue -= HUE_STEP;
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if (hue < 0) {
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hue = 0;
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saturation = 0;
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}
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else {
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saturation = 255;
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}
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}
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else {
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value -= VAL_STEP;
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if (value < 30) {
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value = 0;
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}
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}
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}
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Serial.print("Direction 2: ");
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Serial.print(currentDir);
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Serial.print(" | Button State: ");
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Serial.print(btnState);
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Serial.print(" | Hue: ");
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Serial.print(hue);
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Serial.print(" | Sat: ");
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Serial.print(saturation);
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Serial.print(" | Val: ");
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Serial.println(value);
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pixels.fill(pixels.gamma32(pixels.ColorHSV(hue, saturation, value)), 0, NUMPIXELS);
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pixels.show();
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}
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lastStateCLK = currentStateCLK;
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lastStateCLK2 = currentStateCLK2;
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// Put in a slight delay to help debounce the reading
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delay(1);
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}
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