esp rotary encoder

2023-01-27 09:43:10 +01:00
parent fb5197a4fa
commit 46ca7f92e9
2 changed files with 189 additions and 0 deletions
@@ -0,0 +1,71 @@
+// https://starthardware.org/arduino-und-encoder-schaltplan-erklaerung-code/
+
+#include <Adafruit_NeoPixel.h>
+
+#define NUMPIXELS 12
+#define LEDPIN 2
+
+Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, LEDPIN, NEO_GRB + NEO_KHZ800);
+
+int encoderPinA = 4;
+int encoderPinB = 5;
+int encoderPos = 0;
+int encoderPinALast = LOW;
+int encoderPinANow = LOW;
+
+long colorNew = 65535;
+long color = 65535;
+
+
+void setup() {
+  pinMode (encoderPinA, INPUT_PULLUP);
+  pinMode (encoderPinB, INPUT_PULLUP);
+  Serial.begin (115200);
+
+  delay(150);
+  Serial.println("PIXELS");
+  
+  pixels.begin(); // initialize NeoPixel library.
+
+  //pixels.setBrightness(40);
+  //pixels.fill(pixels.Color(217, 101, 0), 0, NUMPIXELS);
+  
+  pixels.fill(pixels.gamma32(pixels.ColorHSV(65535, 255, 190)), 0, NUMPIXELS);
+  pixels.show();
+  
+  /*
+  for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
+    pixels.rainbow(firstPixelHue);
+    pixels.show();
+    delay(10);
+  }
+  */
+}
+
+void loop() {
+  encoderPinANow = digitalRead(encoderPinA);
+  if ((encoderPinALast == HIGH) && (encoderPinANow == LOW)) {
+    if (digitalRead(encoderPinB) == HIGH) {
+      encoderPos++;
+      colorNew += 4096;
+    } else {
+      encoderPos--;
+      colorNew -= 4096;
+    }
+    
+    if (colorNew > 65535) {
+      colorNew = 0;
+    }
+    else if (colorNew < 0) {
+        colorNew = 65535;
+    }
+  }
+  encoderPinALast = encoderPinANow;
+
+  if (colorNew != color) {
+    color = colorNew;
+    pixels.fill(pixels.gamma32(pixels.ColorHSV(color, 255, 100)), 0, NUMPIXELS);
+    pixels.show();
+    Serial.println(color);
+  }
+}