reformat cpp

shlagmixer-arduino/src/main.cpp

@@ -4,6 +4,7 @@
 #define SWITCHES_COUNT 10
 const int FADERS_PINS[] = { A0, A1, A2, A3, A4 };
 const int SWITCHES_PINS[] = { 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 };
+#define DEBOUNCE_THR 2
 
 int SWITCHES_STATES[SWITCHES_COUNT];
 int FADERS_STATES[FADERS_COUNT];
@@ -12,43 +13,45 @@ void setup() {
   for (int i = 0; i < FADERS_COUNT; i++) {
     pinMode(FADERS_PINS[i], INPUT);
   }
+
+
   for (int i = 0; i < SWITCHES_COUNT; i++) {
     pinMode(SWITCHES_PINS[i], INPUT_PULLUP);
-
-    int readValue = digitalRead(SWITCHES_PINS[i]);
-    SWITCHES_STATES[i] = readValue;
-    if (readValue == HIGH) {
-      noteOn(0, 12 + i, 64);
-    }
   }
 
   MidiUSB.flush();
 }
 
 void loop() {
+  // Faders
+  // We send data on channel 32, 33, 34, 35, ... etc, this is arbitrary and can be changed as long as its also changed in the ahk file.
   for (int i = 0; i < FADERS_COUNT; i++) {
     int readState = analogRead(FADERS_PINS[i]);
-    if (
-          readState < FADERS_STATES[i] - 1
-      ||  readState > FADERS_STATES[i] + 1
-    ) {
-      FADERS_STATES[i] = readState;
 
+    // If currentState - DEBOUNCE_THR < newState < currentStatet + DEBOUNCE_THR, threshold is used because the faders are quite noisy
+    if (readState < FADERS_STATES[i] - DEBOUNCE_THR ||  readState > FADERS_STATES[i] + DEBOUNCE_THR) {
+      FADERS_STATES[i] = readState; // update the current state
+
+      // Send the note, we read a value withn 0-1023, MIDI uses 0-127, so remap the value
       controlChange(0, 32 + i, map(readState, 0, 1023, 0, 127));
       MidiUSB.flush();
     }
   }
 
+  // Toggle switches
+  // We send notes 12, 13, 14, ... etc, this is arbitrary and can be changed as long as its also changed in the ahk file.
   for (int i = 0; i < SWITCHES_COUNT; i++) {
     int readState = digitalRead(SWITCHES_PINS[i]);
+
+    // Has button state changed ?
     if (readState != SWITCHES_STATES[i]) {      
       SWITCHES_STATES[i] = readState;
+
       if (readState == HIGH) {
         noteOn(0, 12 + i, 64);
       } else {
         noteOff(0, 12 + i, 64);
       }
-
       MidiUSB.flush();
     }
   }