Added arduino files

2026-07-24 02:36:12 +10:00 · 2018-09-01 19:39:16 +10:00
parent 396cee5bda
commit a5d366590e
2 changed files with 251 additions and 0 deletions
--- a/BigKnob.ino
+++ b/BigKnob.ino
@@ -0,0 +1,233 @@
+#define BOUNCE_LOCK_OUT
+#include <Bounce2.h>
+#include <Rotary.h>
+//PINS
+
+// -- Switch --
+int switchpin1 = 13;
+int switchpin2 = 26;
+
+// -- Buttons --
+int buttonpin1 = 14;
+int buttonpin2 = 17;
+int buttonpin3 = 16;
+int buttonpin4 = 15;
+int buttonpin5 = 6;
+int buttonpin6 = 7;
+
+// -- Encoders --
+int encoderApin1 = 0;
+int encoderApin2 = 1;
+int encoderBpin1 = 4;
+int encoderBpin2 = 3;
+
+// -- LED -- PWM
+int redPin = 20;
+int bluePin = 10;
+int greenPin = 22;
+
+
+//SETTINGS
+int state = 0;
+float brightnessMultiplier = 0.1f;
+
+//GLOBAL VARS
+float redDesired = 0;
+float blueDesired = 0;
+float greenDesired = 0;
+float redVal = 0;
+float blueVal = 0;
+float greenVal = 0;
+int val[] = {100, 100, 100};
+int lastval[] = {0, 0, 0};
+bool volChanged = false;
+Bounce debouncer1 = Bounce();
+Bounce debouncer2 = Bounce();
+Bounce debouncer3 = Bounce();
+Bounce debouncer4 = Bounce();
+Bounce debouncer5 = Bounce();
+Bounce debouncer6 = Bounce();
+
+Rotary encoder1 = Rotary(encoderApin1, encoderApin2);
+Rotary encoder2 = Rotary(encoderBpin1, encoderBpin2);
+unsigned char encoder1result;
+unsigned char encoder2result;
+
+void setup() {
+  // put your setup code here, to run once:
+  pinMode(buttonpin1, INPUT_PULLDOWN);
+  pinMode(buttonpin2, INPUT_PULLDOWN);
+  pinMode(buttonpin3, INPUT_PULLDOWN);
+  pinMode(buttonpin4, INPUT_PULLDOWN);
+  pinMode(buttonpin5, INPUT_PULLDOWN);
+  pinMode(buttonpin6, INPUT_PULLDOWN);
+  debouncer1.attach(buttonpin1);
+  debouncer1.interval(10);
+  debouncer2.attach(buttonpin2);
+  debouncer2.interval(10);
+  debouncer3.attach(buttonpin3);
+  debouncer3.interval(10);
+  debouncer4.attach(buttonpin4);
+  debouncer4.interval(10);
+  debouncer5.attach(buttonpin5);
+  debouncer5.interval(10);
+  debouncer6.attach(buttonpin6);
+  debouncer6.interval(10);
+
+  pinMode(switchpin1, INPUT_PULLDOWN);
+  pinMode(switchpin2, INPUT_PULLDOWN);
+
+  pinMode(redPin, OUTPUT);
+  pinMode(greenPin, OUTPUT);
+  pinMode(bluePin, OUTPUT);
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  checkState();
+  checkDials();
+  checkButtons();
+
+  queueMidi();
+
+  lerpLED();
+
+  while (usbMIDI.read()) {
+  }
+  
+  delay(1);
+}
+
+void queueMidi() {
+  if (debouncer1.rose())
+    sendMidi(state, 21, 128, 0);
+  if (debouncer1.fell())
+    sendMidi(state, 21, 128, 1);
+  if (debouncer2.rose())
+    sendMidi(state, 22, 128, 0);
+  if (debouncer2.fell())
+    sendMidi(state, 22, 128, 1);
+  if (debouncer3.rose())
+    sendMidi(state, 23, 128, 0);
+  if (debouncer3.fell())
+    sendMidi(state, 23, 128, 1);
+  if (debouncer4.rose())
+    sendMidi(state, 24, 128, 0);
+  if (debouncer4.fell())
+    sendMidi(state, 24, 128, 1);
+  if (debouncer5.rose())
+    sendMidi(state, 25, 128, 0);
+  if (debouncer5.fell())
+    sendMidi(state, 25, 128, 1);
+  if (debouncer6.rose())
+    sendMidi(state, 26, 128, 0);
+  if (debouncer6.fell())
+    sendMidi(state, 26, 128, 1);
+
+  if (volChanged)
+    sendMidi(state, 11, val[state], 2);
+}
+
+void sendMidi(int channel, int note, int vel, int type)
+{
+  Serial.print("note: ");
+  Serial.print(note);
+
+  Serial.print(" velocity: ");
+  Serial.print(vel);
+  switch (type) {
+    case 0:// noteOn
+      Serial.print(" type: noteOn ");
+      usbMIDI.sendNoteOn(note, vel, channel);
+      break;
+    case 1:// noteOff
+      Serial.print(" type: noteOff ");
+      usbMIDI.sendNoteOff(note, vel, channel);
+      break;
+    case 2:// ControlChange
+      Serial.print(" type: ControlChange ");
+      usbMIDI.sendControlChange(note, vel, channel);
+      break;
+    default:
+      break;
+  }
+  Serial.print(" channel: ");
+  Serial.println(channel);
+}
+
+void checkButtons() {
+  debouncer1.update();
+  debouncer2.update();
+  debouncer3.update();
+  debouncer4.update();
+  debouncer5.update();
+  debouncer6.update();
+}
+
+void checkState() {
+  if (digitalRead(switchpin1) == HIGH)
+    state = 0;
+  else if (digitalRead(switchpin2) == HIGH)
+    state = 2;
+  else
+    state = 1;
+}
+
+void checkDials() {
+  volChanged = false;
+  
+  encoder1result = encoder1.process();
+  if (encoder1result) {
+    if (encoder1result == DIR_CW)
+      val[state] = min(val[state] + 6, 128);
+    else
+      val[state] = max(val[state] - 6, 0);
+  }
+
+  encoder2result = encoder2.process();
+  if (encoder2result) {
+    if (encoder2result == DIR_CW)
+      val[state] = min(val[state] + 1, 128);
+    else
+      val[state] = max(val[state] - 1, 0);
+  }
+
+  if (val[state] != lastval[state]) {
+    lastval[state] = val[state];
+    volChanged = true;
+  }
+}
+
+void lerpLED() {
+  switch (state) {
+    case 0:
+      redDesired = 100;
+      blueDesired = 0;
+      greenDesired = 0;
+      break;
+    case 1:
+      redDesired = 0;
+      blueDesired = 100;
+      greenDesired = 0;
+      break;
+    case 2:
+      redDesired = 0;
+      blueDesired = 0;
+      greenDesired = 100;
+      break;
+    default:
+      break;
+  }
+
+  redVal = lerp(redVal, redDesired, 0.005f);
+  blueVal = lerp(blueVal, blueDesired, 0.005f);
+  greenVal = lerp(greenVal, greenDesired, 0.005f);
+
+  analogWrite(redPin, redVal * brightnessMultiplier);
+  analogWrite(bluePin, blueVal * brightnessMultiplier);
+  analogWrite(greenPin, greenVal * brightnessMultiplier);
+}
+
+float lerp(float a, float b, float x) {
+  return a + x * (b - a);
+}