Create buttons.h

Author: TheKitty

GemmaM0_Band_Jacket/DiscoBandCamp/buttons.h

@@ -0,0 +1,90 @@
+//  Process button input and return button activity
+//  Retained button code from RGB Shades though just using one button
+
+#define NUMBUTTONS 1
+#define MODEBUTTON 2  //define the pin the button is connected to
+
+#define BTNIDLE 0
+#define BTNDEBOUNCING 1
+#define BTNPRESSED 2
+#define BTNRELEASED 3
+#define BTNLONGPRESS 4
+#define BTNLONGPRESSREAD 5
+
+#define BTNDEBOUNCETIME 20
+#define BTNLONGPRESSTIME 1000
+
+unsigned long buttonEvents[NUMBUTTONS];
+byte buttonStatuses[NUMBUTTONS];
+byte buttonmap[NUMBUTTONS] = {MODEBUTTON};
+
+void updateButtons() {
+  for (byte i = 0; i < NUMBUTTONS; i++) {
+    switch (buttonStatuses[i]) {
+      case BTNIDLE:
+        if (digitalRead(buttonmap[i]) == LOW) {
+          buttonEvents[i] = currentMillis;
+          buttonStatuses[i] = BTNDEBOUNCING;
+        }
+        break;
+
+      case BTNDEBOUNCING:
+        if (currentMillis - buttonEvents[i] > BTNDEBOUNCETIME) {
+          if (digitalRead(buttonmap[i]) == LOW) {
+            buttonStatuses[i] = BTNPRESSED;
+          }
+        }
+        break;
+
+      case BTNPRESSED:
+        if (digitalRead(buttonmap[i]) == HIGH) {
+          buttonStatuses[i] = BTNRELEASED;
+        } else if (currentMillis - buttonEvents[i] > BTNLONGPRESSTIME) {
+          buttonStatuses[i] = BTNLONGPRESS;
+        }
+        break;
+
+      case BTNRELEASED:
+        break;
+
+      case BTNLONGPRESS:
+        break;
+
+      case BTNLONGPRESSREAD:
+        if (digitalRead(buttonmap[i]) == HIGH) {
+          buttonStatuses[i] = BTNIDLE;
+        }
+        break;
+    }
+  }
+}
+
+byte buttonStatus(byte buttonNum) {
+
+  byte tempStatus = buttonStatuses[buttonNum];
+  if (tempStatus == BTNRELEASED) {
+    buttonStatuses[buttonNum] = BTNIDLE;
+  } else if (tempStatus == BTNLONGPRESS) {
+    buttonStatuses[buttonNum] = BTNLONGPRESSREAD;
+  }
+
+  return tempStatus;
+
+}
+
+//  Check the mode button (for switching between effects)
+void doButtons() {
+  switch (buttonStatus(0)) {
+
+    case BTNRELEASED: // short button press
+      cycleMillis = currentMillis;
+      if (++currentEffect >= numEffects) currentEffect = 0; // loop to start of effect list
+      effectInit = false; // trigger effect initialization when new effect is selected
+      break;
+
+    case BTNLONGPRESS: // long button press
+      currentBrightness += 51; // increase the brightness (wraps to lowest)
+      FastLED.setBrightness(scale8(currentBrightness, MAXBRIGHTNESS));
+      break;
+  }
+}