Serial output for debugging

nano/nano_ky-040_rotary/nano_ky-040_rotary.ino

@@ -36,6 +36,8 @@ int value = 60;      // 0-255
 
 
 void setup() {
+  Serial.begin(115200);
+
   pinMode(CLK,INPUT);
   pinMode(DT,INPUT);
   pinMode(SW, INPUT_PULLUP);
@@ -46,6 +48,8 @@ void setup() {
   pixels.begin(); // initialize NeoPixel library.
   pixels.fill(pixels.gamma32(pixels.ColorHSV(hue, saturation, value)), 0, NUMPIXELS);
   pixels.show();
+
+  Serial.println("PIXELS");
 }
 
 void loop() {
@@ -57,6 +61,7 @@ void loop() {
     btnState = digitalRead(SW);
     
     if (digitalRead(DT) != currentStateCLK) {
+      currentDir ="CW";
       if (btnState == LOW) {
         hue += HUE_STEP;
         if (hue > 65535) {
@@ -74,6 +79,7 @@ void loop() {
         }
       }
     } else {
+      currentDir ="CCW";
       if (btnState == LOW) {
         hue -= HUE_STEP;
         if (hue < 0) {
@@ -91,6 +97,15 @@ void loop() {
         }
       }
     }
+
+    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();
@@ -99,6 +114,7 @@ void loop() {
     btnState = digitalRead(SW2);
     
     if (digitalRead(DT2) != currentStateCLK2) {
+      currentDir ="CW";
       if (btnState == LOW) {
         hue += HUE_STEP;
         if (hue > 65535) {
@@ -116,6 +132,7 @@ void loop() {
         }
       }
     } else {
+      currentDir ="CCW";
       if (btnState == LOW) {
         hue -= HUE_STEP;
         if (hue < 0) {
@@ -134,6 +151,17 @@ void loop() {
       }
     }
     
+    Serial.print("Direction 2: ");
+    Serial.print(currentDir);
+    Serial.print(" | Button State: ");
+    Serial.print(btnState);
+    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();
   }