Zach's git repos / HexBoard
Firmware for HexBoard MIDI controller
Diffstat (limited to 'Buttons.ino')
-rw-r--r--Buttons.ino77
1 files changed, 77 insertions, 0 deletions
diff --git a/Buttons.ino b/Buttons.ino
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+++ b/Buttons.ino
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+void readDigitalButtons() {
+ if (diagnostics == 1) {
+ Serial.println();
+ }
+ // Button Deck
+ for (int rowIndex = 0; rowIndex < rowCount; rowIndex++) // Iterate through each of the row pins on the multiplexing chip.
+ {
+ digitalWrite(m1p, rowIndex & 1);
+ digitalWrite(m2p, (rowIndex & 2) >> 1);
+ digitalWrite(m4p, (rowIndex & 4) >> 2);
+ digitalWrite(m8p, (rowIndex & 8) >> 3);
+ for (byte columnIndex = 0; columnIndex < columnCount; columnIndex++) // Now iterate through each of the column pins that are connected to the current row pin.
+ {
+ byte columnPin = columns[columnIndex]; // Hold the currently selected column pin in a variable.
+ pinMode(columnPin, INPUT_PULLUP); // Set that row pin to INPUT_PULLUP mode (+3.3V / HIGH).
+ byte buttonNumber = columnIndex + (rowIndex * columnCount); // Assign this location in the matrix a unique number.
+ delayMicroseconds(10); // Delay to give the pin modes time to change state (false readings are caused otherwise).
+ previousActiveButtons[buttonNumber] = activeButtons[buttonNumber]; // Track the "previous" variable for comparison.
+ byte buttonState = digitalRead(columnPin); // (don't)Invert reading due to INPUT_PULLUP, and store the currently selected pin state.
+ if (buttonState == LOW) {
+ if (diagnostics == 1) {
+ Serial.print("1");
+ } else if (diagnostics == 2) {
+ Serial.println(buttonNumber);
+ }
+ if (!previousActiveButtons[buttonNumber]) {
+ // newpress time
+ activeButtonsTime[buttonNumber] = millis();
+ }
+ // TODO: Implement debounce?
+ activeButtons[buttonNumber] = 1;
+ } else {
+ // Otherwise, the button is inactive, write a 0.
+ if (diagnostics == 1) {
+ Serial.print("0");
+ }
+ activeButtons[buttonNumber] = 0;
+ }
+ // Set the selected column pin back to INPUT mode (0V / LOW).
+ pinMode(columnPin, INPUT);
+ }
+ }
+}
+
+void playNotes() {
+ for (int i = 0; i < elementCount; i++) // For all buttons in the deck
+ {
+ if (activeButtons[i] != previousActiveButtons[i]) // If a change is detected
+ {
+ if (activeButtons[i] == 1) // If the button is active (newpress)
+ {
+ if (currentLayout[i] < 128) {
+ strip.setPixelColor(i, strip.ColorHSV((currentLayout[i] % 12) * 5006, 255, 255));
+ noteOn(midiChannel, (currentLayout[i] + octave) % 128, midiVelocity);
+ } else {
+ commandPress(currentLayout[i]);
+ }
+ } else {
+ // If the button is inactive (released)
+ if (currentLayout[i] < 128) {
+ setLayoutLED(i);
+ noteOff(midiChannel, (currentLayout[i] + octave) % 128, 0);
+ } else {
+ commandRelease(currentLayout[i]);
+ }
+ }
+ }
+ }
+}
+
+void heldButtons() {
+ for (int i = 0; i < elementCount; i++) {
+ if (activeButtons[i]) {
+ //if (
+ }
+ }
+} \ No newline at end of file