Firmware for HexBoard MIDI controller
PitchBend: Refactor pitchBend and draft modWheel
NOTE: maybe the speed needs to be tweaked before release
| -rw-r--r-- | HexBoard_V1.1.ino | 229 |
1 files changed, 117 insertions, 112 deletions
diff --git a/HexBoard_V1.1.ino b/HexBoard_V1.1.ino index 26e14b9..29eb3e7 100644 --- a/HexBoard_V1.1.ino +++ b/HexBoard_V1.1.ino @@ -226,11 +226,13 @@ unsigned long previousTime = 0; // Used to check speed of the loop in diagnosti int loopTime = 0; // Used to keep track of how long each loop takes. Useful for rate-limiting. int screenTime = 0; // Used to dim screen after a set time to prolong the lifespan of the OLED -// Pitch bend variables +// Pitch bend and mod wheel variables int pitchBendNeutral = 0; // The center position for the pitch bend "wheel." Could be adjusted for global tuning? -int pitchBendTime = 0; // Used to rate-limit pitch bend updates int pitchBendPosition = 0; // The actual pitch bend variable used for sending MIDI -int pitchBendSpeed = 2048; // The ammount the pitch bend moves every time pitchBendTime hits it's limit. +int pitchBendSpeed = 2048; // The amount the pitch bend moves every time modPitchTime hits it's limit. +int modPitchTime = 0; // Used to rate-limit pitch bend and mod wheel updates +byte modWheelPosition = 0; // Actual mod wheel variable used for sending MIDI +byte modWheelSpeed = 4; // The amount the mod wheel moves every time modPitchTime hits it's limit. // Variables for holding digital button states and activation times byte activeButtons[elementCount]; // Array to hold current note button states @@ -323,8 +325,8 @@ GEMItem menuItemBuzzer("Buzzer:", buzzer); // For use when testing out unfinished features GEMItem menuItemTesting("Testing", menuPageTesting); -boolean release = true; // Whether this is a release or not -GEMItem menuItemVersion("V0.1.0 ", release, GEM_READONLY); +boolean release = false; // Whether this is a release or not +GEMItem menuItemVersion("V0.1.1 ", release, GEM_READONLY); void sequencerSetup(); //Forward declaration // For enabling basic sequencer mode - not complete GEMItem menuItemSequencer("Sequencer:", sequencerMode, sequencerSetup); @@ -442,8 +444,13 @@ void loop() { // Act on those buttons playNotes(); - // Pitch bend stuff - pitchBend(); + if (true) { + // Pitch bend stuff + pitchBend(); + } else { + // mod wheel stuff + modWheel(); + } // Held buttons heldButtons(); @@ -515,119 +522,44 @@ void commandPress(byte command) { void commandRelease(byte command) { } -void pitchBend() { //todo: possibly add a check where if no notes are active, make the pitch bend instant. Add LED updates. - - if (activeButtons[cmdBtn5] && !activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { // Whole pitch up - pitchBendTime = pitchBendTime + loopTime; - if (pitchBendTime >= 20) { - pitchBendTime = 0; - if (pitchBendPosition < 8192) { - pitchBendPosition = pitchBendPosition + pitchBendSpeed; - if (pitchBendPosition > 8191) { // This is a hack to prevent going over the maximum number (8191) that MIDI pitchbend can go without messing up my math. - MIDI.sendPitchBend(8191, midiChannel); - } - if (pitchBendPosition <= 8191) { - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - } - } +void pitchBend() { //todo: possibly add a check where if no notes are active, make the pitch bend instant. + + // Default: no pitch change + int pitchBendTarget = 0; + if (activeButtons[cmdBtn5] && !activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { + pitchBendTarget = 8191; // Whole pitch up + } else if (activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { + pitchBendTarget = 4096; // Half pitch up + } else if (!activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && activeButtons[cmdBtn7]) { + pitchBendTarget = -4096; // Half pitch down + } else if (!activeButtons[cmdBtn5] && !activeButtons[cmdBtn6] && activeButtons[cmdBtn7]) { + pitchBendTarget = -8192; // Whole pitch down } - if (activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { // Half pitch up - pitchBendTime = pitchBendTime + loopTime; - if (pitchBendTime >= 20) { - pitchBendTime = 0; - if (pitchBendPosition > 4096) { - pitchBendPosition = pitchBendPosition - pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - if (pitchBendPosition < 4096) { - pitchBendPosition = pitchBendPosition + pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - } - } - if (!activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && activeButtons[cmdBtn7]) { // Half pitch down - pitchBendTime = pitchBendTime + loopTime; - if (pitchBendTime >= 20) { - pitchBendTime = 0; - if (pitchBendPosition > -4096) { + + // Approach the target, sendPitchBend based on timing + if (pitchBendPosition != pitchBendTarget) { + modPitchTime = modPitchTime + loopTime; + if (modPitchTime >= 20) { + // if distance between current value and target is less than the mod speed, + if (abs(pitchBendPosition - pitchBendTarget) < pitchBendSpeed) { + // don't go past the target. + pitchBendPosition = pitchBendTarget; + } else if (pitchBendPosition > pitchBendTarget) { + // otherwise, subtract (or add) the speed to approach the target. pitchBendPosition = pitchBendPosition - pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - if (pitchBendPosition < -4096) { + } else if (pitchBendPosition < pitchBendTarget) { pitchBendPosition = pitchBendPosition + pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - } - } - if (!activeButtons[cmdBtn5] && !activeButtons[cmdBtn6] && activeButtons[cmdBtn7]) { // Whole pitch down - pitchBendTime = pitchBendTime + loopTime; - if (pitchBendTime >= 20) { - pitchBendTime = 0; - if (pitchBendPosition > -8192) { - pitchBendPosition = pitchBendPosition - pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); } + // Always send the pitchBend because pitchBendPosition changed. + MIDI.sendPitchBend(pitchBendPosition, midiChannel); } } - if (!activeButtons[cmdBtn5] && !activeButtons[cmdBtn7]) { // Neutral pitch - if (pitchBendTime != 200) { - pitchBendTime = pitchBendTime + loopTime; - if (pitchBendTime >= 20) { - pitchBendTime = 0; - if (pitchBendPosition > 0) { - pitchBendPosition = pitchBendPosition - pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - if (pitchBendPosition < 0) { - pitchBendPosition = pitchBendPosition + pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - } - if (pitchBendPosition == 0) { - pitchBendTime = 200; - } - } - } - if (activeButtons[cmdBtn5] && activeButtons[cmdBtn7]) { // Neutral pitch case two where top and bottom are pressed at the same time - hacky - if (pitchBendTime != 200) { - pitchBendTime = pitchBendTime + loopTime; - if (pitchBendTime >= 20) { - pitchBendTime = 0; - if (pitchBendPosition > 0) { - pitchBendPosition = pitchBendPosition - pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - if (pitchBendPosition < 0) { - pitchBendPosition = pitchBendPosition + pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - } - if (pitchBendPosition == 0) { - pitchBendTime = 200; - } - } - } - if (activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && activeButtons[cmdBtn7]) { // Neutral pitch case three where all buttons are pressed - kinda hacky - if (pitchBendTime != 200) { - pitchBendTime = pitchBendTime + loopTime; - if (pitchBendTime >= 20) { - pitchBendTime = 0; - if (pitchBendPosition > 0) { - pitchBendPosition = pitchBendPosition - pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - if (pitchBendPosition < 0) { - pitchBendPosition = pitchBendPosition + pitchBendSpeed; - MIDI.sendPitchBend(pitchBendPosition, midiChannel); - } - } - if (pitchBendPosition == 0) { - pitchBendTime = 200; - } - } + + if (pitchBendPosition == 0) { + modPitchTime = 200; // Resets clock when pitchBend returns to 0 for instant responsiveness upon button press } + // Set the lights if (pitchBendPosition > 0) { strip.setPixelColor(cmdBtn5, strip.ColorHSV(0, 255, ((pitchBendPosition / 32) - 1))); strip.setPixelColor(cmdBtn6, strip.ColorHSV(0, 255, (-pitchBendPosition / 32))); @@ -645,6 +577,79 @@ void pitchBend() { //todo: possibly add a check where if no notes are active, m } } +void modWheel() { ///IN THE MIDDLE OF HACKING SOMETHING TOGETHER - pardon the mess + //BIG IDEA! Set target based on what keys are being pressed. Then use that target as a variable instead of the static numbers hard coded per target. + byte modWheelTarget = 0; + if (activeButtons[cmdBtn5] && !activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { + modWheelTarget = 127; + } else if (activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { + modWheelTarget = 100; + } else if (!activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { + modWheelTarget = 75; + } else if (activeButtons[cmdBtn5] && activeButtons[cmdBtn7]) { + modWheelTarget = 75; + } else if (!activeButtons[cmdBtn5] && activeButtons[cmdBtn6] && activeButtons[cmdBtn7]) { + modWheelTarget = 50; + } else if (!activeButtons[cmdBtn5] && !activeButtons[cmdBtn6] && activeButtons[cmdBtn7]) { + modWheelTarget = 25; + } else if (!activeButtons[cmdBtn5] && !activeButtons[cmdBtn6] && !activeButtons[cmdBtn7]) { + modWheelTarget = 0; + } + + if (modWheelPosition != modWheelTarget) { // Only runs the clock when mod target differs from actual + modPitchTime = modPitchTime + loopTime; + if (modPitchTime >= 20) { + modPitchTime = 0; + // if distance between current value and target is less than the mod speed, + if (abs(modWheelPosition - modWheelTarget) < modWheelSpeed) { + // don't go past the target. + modWheelPosition = modWheelTarget; + } else if (modWheelPosition > modWheelTarget) { + // otherwise, subtract (or add) the speed to approach the target. + modWheelPosition = modWheelPosition - modWheelSpeed; + } else if (modWheelPosition < modWheelTarget) { + modWheelPosition = modWheelPosition + modWheelSpeed; + } + // Always send the control change because modWheelPosition changed. + MIDI.sendControlChange(1, modWheelPosition, midiChannel); + } + } + if (modWheelPosition == 0) { + modPitchTime = 200; // Resets clock when modwheel returns to 0 for instant responsiveness upon button press + } + + // Set the pixel colors based on the (new) modWheelPosition. + if (modWheelPosition == 0) { + strip.setPixelColor(cmdBtn5, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn6, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn7, strip.ColorHSV(21854, 255, 0)); + } else if (modWheelPosition > 0 && modWheelPosition < 25) { + strip.setPixelColor(cmdBtn5, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn6, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn7, strip.ColorHSV(21854, 255, (modWheelPosition * 10))); + } else if (modWheelPosition == 25) { + strip.setPixelColor(cmdBtn5, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn6, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn7, strip.ColorHSV(21854, 255, 255)); + } else if (modWheelPosition > 25 && modWheelPosition < 75) { + strip.setPixelColor(cmdBtn5, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn6, strip.ColorHSV(21854, 255, ((modWheelPosition - 25) * 5))); + strip.setPixelColor(cmdBtn7, strip.ColorHSV(21854, 255, (255 - (modWheelPosition - 25) * 5))); + } else if (modWheelPosition == 75) { + strip.setPixelColor(cmdBtn5, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn6, strip.ColorHSV(21854, 255, 255)); + strip.setPixelColor(cmdBtn7, strip.ColorHSV(21854, 255, 0)); + } else if (modWheelPosition > 75 && modWheelPosition < 127) { + strip.setPixelColor(cmdBtn5, strip.ColorHSV(21854, 255, ((modWheelPosition - 25) * 5))); + strip.setPixelColor(cmdBtn6, strip.ColorHSV(21854, 255, (255 - (modWheelPosition - 25) * 5))); + strip.setPixelColor(cmdBtn7, strip.ColorHSV(21854, 255, 0)); + } else if (modWheelPosition == 127) { + strip.setPixelColor(cmdBtn5, strip.ColorHSV(21854, 255, 255)); + strip.setPixelColor(cmdBtn6, strip.ColorHSV(21854, 255, 0)); + strip.setPixelColor(cmdBtn7, strip.ColorHSV(21854, 255, 0)); + } +} + // BUTTONS // void readDigitalButtons() { if (diagnostics == 1) { |