119 lines
2.6 KiB
Arduino
119 lines
2.6 KiB
Arduino
// https://lastminuteengineers.com/rotary-encoder-arduino-tutorial/
|
|
|
|
#include <Adafruit_NeoPixel.h>
|
|
|
|
#define NUMPIXELS 12
|
|
#define LEDPIN 2
|
|
|
|
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, LEDPIN, NEO_GRB + NEO_KHZ800);
|
|
|
|
// Rotary Encoder Inputs
|
|
#define CLK 8
|
|
#define DT 9
|
|
#define SW 10
|
|
|
|
int currentStateCLK;
|
|
int lastStateCLK;
|
|
String currentDir = "";
|
|
unsigned long lastButtonPress = 0;
|
|
|
|
#define HUE_STEP 1200
|
|
#define VAL_STEP 10
|
|
|
|
long hue = 0; // 0-65535 https://adafruit.github.io/Adafruit_NeoPixel/html/class_adafruit___neo_pixel.html#a1f16aee5b96e16e62598f826e292b23b
|
|
int saturation = 0; // 0-255
|
|
int value = 60; // 0-255
|
|
|
|
|
|
|
|
void setup() {
|
|
Serial.begin(115200);
|
|
|
|
pinMode(CLK,INPUT);
|
|
pinMode(DT,INPUT);
|
|
pinMode(SW, INPUT_PULLUP);
|
|
|
|
// Read the initial state of CLK
|
|
lastStateCLK = digitalRead(CLK);
|
|
|
|
pixels.begin(); // initialize NeoPixel library.
|
|
pixels.fill(pixels.gamma32(pixels.ColorHSV(hue, saturation, value)), 0, NUMPIXELS);
|
|
pixels.show();
|
|
|
|
Serial.println("PIXELS");
|
|
}
|
|
|
|
void loop() {
|
|
currentStateCLK = digitalRead(CLK);
|
|
int btnState = digitalRead(SW);
|
|
|
|
// If last and current state of CLK are different, then pulse occurred
|
|
if (currentStateCLK != lastStateCLK && currentStateCLK == 1){
|
|
|
|
if (digitalRead(DT) != currentStateCLK) {
|
|
currentDir ="CW";
|
|
if (btnState == LOW) {
|
|
hue += HUE_STEP;
|
|
if (hue > 65535) {
|
|
hue = 65535;
|
|
saturation = 0;
|
|
}
|
|
else {
|
|
saturation = 255;
|
|
}
|
|
}
|
|
else {
|
|
value += VAL_STEP;
|
|
if (value > 255) {
|
|
value = 255;
|
|
}
|
|
}
|
|
} else {
|
|
currentDir ="CCW";
|
|
if (btnState == LOW) {
|
|
hue -= HUE_STEP;
|
|
if (hue < 0) {
|
|
hue = 0;
|
|
saturation = 0;
|
|
}
|
|
else {
|
|
saturation = 255;
|
|
}
|
|
}
|
|
else {
|
|
value -= VAL_STEP;
|
|
if (value < 30) {
|
|
value = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
Serial.print("Direction: ");
|
|
Serial.print(currentDir);
|
|
Serial.print(" | Hue: ");
|
|
Serial.print(hue);
|
|
Serial.print(" | Sat: ");
|
|
Serial.print(saturation);
|
|
Serial.print(" | Val: ");
|
|
Serial.println(value);
|
|
|
|
|
|
pixels.fill(pixels.gamma32(pixels.ColorHSV(hue, saturation, value)), 0, NUMPIXELS);
|
|
pixels.show();
|
|
}
|
|
/* else if (btnState == LOW) {
|
|
//if 50ms have passed since last LOW pulse, it means that the
|
|
//button has been pressed, released and pressed again
|
|
if (millis() - lastButtonPress > 50) {
|
|
Serial.println("Button pressed!");
|
|
}
|
|
lastButtonPress = millis();
|
|
}*/
|
|
|
|
lastStateCLK = currentStateCLK;
|
|
|
|
// Put in a slight delay to help debounce the reading
|
|
delay(1);
|
|
}
|