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Six Pack/_6pack.ino

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+#include <HID-Project.h>
+#include <HID-Settings.h>
+#include <TimerOne.h>
+
+//debounce milliseconds
+const int debounce = 5;
+//Switch Pins
+const byte k[6] = { 4, 5, 6, 7, 8, 9 };
+//Switch status
+boolean s[6] = { 0, 0, 0, 0, 0, 0 };
+
+//M for Media Key, K for Keyboard
+const char codetype[6] = { 'M', 'K', 'M', 'K', 'K', 'K' };
+
+//Keycodes
+const ConsumerKeycode ccode[6] = { MEDIA_VOLUME_MUTE,
+                                   MEDIA_VOLUME_MUTE,
+                                   MEDIA_PLAY_PAUSE,
+                                   MEDIA_PLAY_PAUSE,
+                                   MEDIA_PLAY_PAUSE,
+                                   MEDIA_PLAY_PAUSE
+                                 };
+
+const KeyboardKeycode kcode[6] = { KEY_ESC,
+                                   KEY_UP_ARROW,
+                                   KEY_BACKSPACE,
+                                   KEY_LEFT_ARROW,
+                                   KEY_DOWN_ARROW,
+                                   KEY_RIGHT_ARROW
+                                 };
+byte col = 0;
+byte leds[3][2];
+const int keyfade = 40;
+const char curve[]  = {
+  0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1
+};
+const int fadecount = 2;
+const unsigned long breathcount = 5000;
+int fadecounter = 0;
+unsigned long breathcounter = 0;
+byte pass = 1;
+
+// pin[xx] on led matrix connected to nn on Arduino (-1 is dummy to make array start at pos 1)
+int pins[6] = {
+  -1, 10, 18, 19, 20, 21
+};
+
+// col[xx] of leds = pin yy on led matrix
+int cols[3] = {
+  pins[3], pins[2], pins[1]
+};
+
+// row[xx] of leds = pin yy on led matrix
+int rows[2] = {
+  pins[5], pins[4]
+};
+
+
+
+void setup() {
+  Keyboard.begin();
+  Consumer.begin();
+  setupLeds();
+  onLeds();
+  //setup inputs, turn on pullups
+  for (int i = 0; i <= 5; i++) {
+    pinMode(k[i], INPUT);
+    digitalWrite(k[i], 1);
+  }
+}
+
+void loop() {
+  CheckKeys();
+  delay(debounce);
+
+  fadecounter++;
+  if (fadecounter > fadecount) {
+    fadecounter = 0;
+    fade();
+  }
+  breathcounter++;
+  if (breathcounter > breathcount) {
+    breathcounter = 0;
+    fadecounter = 0;
+    breath();
+  }
+}
+
+void CheckKeys() {
+  for (int i = 0; i <= 5; i++) {
+    if (codetype[i] == 'M') {
+      if (digitalRead(k[i]) == 0) {
+        if (s[i] == 0) {
+          Consumer.press((ccode[i]));
+          s[i] = 1;
+          byte row = i / 3;
+          byte col = i % 3;
+          leds[col][row] = 60;
+          breathcounter = 0;
+        }
+      }
+      else {
+        if (s[i] == 1) {
+          s[i] = 0;
+          Consumer.release((ccode[i]));
+          byte row = i / 3;
+          byte col = i % 3;
+          leds[col][row] = 60;
+          breathcounter = 0;
+        }
+      }
+    }
+    if (codetype[i] == 'K') {
+      if (digitalRead(k[i]) == 0) {
+        if (s[i] == 0) {
+          Keyboard.press((kcode[i]));
+          s[i] = 1;
+          byte row = i / 3;
+          byte col = i % 3;
+          leds[col][row] = 60;
+          breathcounter = 0;
+        }
+      }
+      else {
+        if (s[i] == 1) {
+          s[i] = 0;
+          Keyboard.release((kcode[i]));
+          byte row = i / 3;
+          byte col = i % 3;
+          leds[col][row] = 60;
+          breathcounter = 0;
+        }
+      }
+    }
+  }
+}
+
+void setupLeds() {
+  // sets the pins as output
+  for (int i = 1; i <= 6; i++) {
+    pinMode(pins[i], OUTPUT);
+  }
+
+  // set up cols and rows
+  for (int i = 1; i <= 3; i++) {
+    digitalWrite(cols[i - 1], HIGH);
+  }
+
+  for (int i = 1; i <= 2; i++) {
+    digitalWrite(rows[i - 1], LOW);
+  }
+
+  clearLeds();
+
+  // Set refresh rate (interrupt timeout period)
+  Timer1.initialize(500);
+  // Set interrupt routine to be called
+  Timer1.attachInterrupt(display);
+}
+
+void clearLeds() {
+  // Clear display array
+  for (int i = 0; i < 3; i++) {
+    for (int j = 0; j < 2; j++) {
+      leds[i][j] = 0;
+    }
+  }
+}
+
+void onLeds() {
+  for (int i = 0; i < 3; i++) {
+    for (int j = 0; j < 2; j++) {
+      leds[i][j] = keyfade;
+    }
+  }
+}
+
+void fade() {
+  for (int i = 0; i < 3; i++) {
+    for (int j = 0; j < 2; j++) {
+      if (leds[i][j] > 0) {
+        leds[i][j] = leds[i][j] - 1;
+      }
+    }
+  }
+}
+
+void breath() {
+  for (int i = 0; i < 3; i++) {
+    for (int j = 0; j < 2; j++) {
+      leds[i][j] = 60;
+    }
+  }
+}
+
+// Interrupt routine
+void display() {
+  digitalWrite(cols[col], HIGH);  // Turn whole previous column off
+  col++;
+  if (col == 3) {
+    col = 0;
+    pass++;
+    if (pass > 8) {
+      pass = 1;
+    }
+  }
+  for (int row = 0; row < 2; row++) {
+    if (curve[leds[col][row]] > pass) {
+      digitalWrite(rows[row], HIGH);  // Turn on this led
+    }
+    else {
+      digitalWrite(rows[row], LOW); // Turn off this led
+    }
+  }
+  digitalWrite(cols[col], LOW); // Turn whole column on at once (for equal lighting times)
+}
+