code comments added, rotary encoder overflow fixed

.gitignore

@@ -0,0 +1 @@
+build

README.md

@@ -0,0 +1,15 @@
+# Soundcube Firmware
+
+## Code something yourself
+
+1. Download [Arduino IDE](https://www.arduino.cc/en/software/)
+2. Install and open "Preferences"
+3. Follow these [instructions](https://github.com/earlephilhower/arduino-pico?tab=readme-ov-file#installation)
+	- No need to change checkboxes, only paste the URL and hit OK.
+4. Install **Raspberry Pi Pico** boards ([HowTo install boards](https://support.arduino.cc/hc/en-us/articles/360016119519-Add-boards-to-Arduino-IDE))
+5. Install libraries ([HowTo install libraries](https://docs.arduino.cc/software/ide-v2/tutorials/ide-v2-installing-a-library/)): Adafruit Neopixel, AS5600 (Rob Tillaart), TCA9555 (Rob Tillaart)
+6. Choose **Generic RP2350** as board and the correct port (Mac: /dev/cu.usbmodemXXXX, PC: COMXX Serial Port)
+7. Go to **Tools -> Flash Size** and choose **16MB (no FS)**
+8. Make your changes in the code
+9. Hit Upload Button (Arduino IDE compiles and uploads it automatically)
+

soundcube-firmware/soundcube-firmware.ino

@@ -4,8 +4,8 @@
 #include <PWMAudio.h>
 #include <I2S.h>
 
-#define HAPTIC 0
-#define AURAL 0
+#define HAPTIC 1
+#define AURAL 1
 #define UI_SAMPLERATE 22050
 
 I2S i2s(INPUT_PULLUP);
@@ -74,7 +74,8 @@ void setup() {
   Serial.println("SUCCESS");
 
   // Rotary Encoder
-  ENC.begin(4);  //  set direction pin.
+  ENC.begin();  //  set direction pin.
+  ENC.setDirection(AS5600_COUNTERCLOCK_WISE);
 
   pinMode(6, OUTPUT);  // Vibration Motor
   pinMode(7, OUTPUT);  // UI Amp Enable
@@ -104,6 +105,8 @@ void setup() {
   // }
 }
 int active = 0;
+int active_led_ring = 0;
+
 uint32_t lastTime = 0;
 int32_t position = 0;
 
@@ -121,10 +124,12 @@ void loop() {
   //   Serial.println(ENC.getRevolutions());
   // }
 
+  // LED Ring leeren
   for (int i = 0; i < 48; i++) {
     ui_pixels.setPixelColor(i + 3, edge_pixels.Color(0, 0, 0));
   }
 
+  // flag = true when a button is pushed
   if (flag) {
     int val = TCA.read16();
     Serial.println(val, BIN);
@@ -140,6 +145,7 @@ void loop() {
     if (HAPTIC) {
       digitalWrite(6, HIGH);
     }
+    // Make beep
     if (AURAL) {
       digitalWrite(7, HIGH);
       click = true;
@@ -147,19 +153,21 @@ void loop() {
       click = false;
       digitalWrite(7, LOW);
     }
+    // Make vibration
     if(HAPTIC){
       if(!AURAL) delay(50);
       digitalWrite(6, LOW);
     }
+    // Flash led ring 
     for (int i = 0; i < 48; i++) {
         ui_pixels.setPixelColor(i + 3, edge_pixels.Color(0, 15, 0));
     }
+    // Switch through LED matrix
     if(buttons[RIGHT]) active++;
     if(buttons[LEFT]) active--;
     if(active == 13) active = 0;
     if(active == -1) active = 12;
   }
-  // 11111110 11111111 button right
 
   // EDGE LEDs
   for (int i = 0; i < 8; i++) {
@@ -171,16 +179,22 @@ void loop() {
   ui_pixels.setPixelColor(1, edge_pixels.Color(0, 0, 15));
   ui_pixels.setPixelColor(2, edge_pixels.Color(0, 0, 15));
 
+  // empty LED matrix
   for (int i = 0; i < 13; i++) {
     ui_pixels.setPixelColor(i + 3 + 48 + 4, edge_pixels.Color(0, 0, 0));
   }
   
+  // set active LED matrix LED
   ui_pixels.setPixelColor(active + 3 + 48 + 4, edge_pixels.Color(255, 255, 255));
 
-  // put your main code here, to run repeatedly:
+  if(position < 0) position += 4096;
+  active_led_ring = (position / 32) % 48;
   
-  edge_pixels.show();  // Set all pixel colors to 'off'
-  ui_pixels.show();    // Set all pixel colors to 'off'
+  // set active LED ring LED
+  ui_pixels.setPixelColor(active_led_ring + 3, edge_pixels.Color(255, 255, 255));
 
-  delay(1);
+  edge_pixels.show();
+  ui_pixels.show();
+
+  delay(1); // wait 1ms
 }