From e745fbaef19d897827595b3d7a42a214eabe2e44 Mon Sep 17 00:00:00 2001
From: Holger Wirtz <wirtz@parasitstudio.de>
Date: Wed, 23 May 2018 13:08:05 +0200
Subject: [PATCH] Initial version.

---
 MIDITESTER.ino | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 MIDITESTER.ino

diff --git a/MIDITESTER.ino b/MIDITESTER.ino
new file mode 100644
index 0000000..6eaf07d
--- /dev/null
+++ b/MIDITESTER.ino
@@ -0,0 +1,91 @@
+#include <MIDI.h>
+#include <looper.h>
+#include <LinkedList.h>
+
+#define LED 13
+#define LED_DECAY_MS 50
+#define MIDI_EVENT_SCHED_MS 100
+
+#define TEST_NOTE_MIN 40
+#define TEST_NOTE_MAX 110
+#define TEST_VEL_MIN 60
+#define TEST_VEL_MAX 120
+#define TEST_DUR_MIN 150
+#define TEST_DUR_MAX 1000
+
+class midi_event {
+  public:
+    int8_t note;
+    int8_t chan;
+    uint32_t dur;
+};
+
+looper sched;
+MIDI_CREATE_DEFAULT_INSTANCE();
+LinkedList<midi_event*> MIDIEvents = LinkedList<midi_event*>();
+
+void setup()
+{
+  /*Serial.begin(38400);*/
+  pinMode(LED, OUTPUT);
+  digitalWrite(LED, LOW);
+
+  MIDI.begin(1);
+
+  sched.addJob(ledDecay, LED_DECAY_MS);
+  sched.addJob(do_midi_events, MIDI_EVENT_SCHED_MS);
+
+  randomSeed(analogRead(A0));  
+}
+
+void loop()
+{
+  if (millis() % 300 == 0)
+  {
+    sendMIDI(random(TEST_NOTE_MIN, TEST_NOTE_MAX), random(TEST_VEL_MIN, TEST_VEL_MAX), 1, random(TEST_DUR_MIN, TEST_DUR_MAX));
+    delay(1);
+  }
+  sched.scheduler();
+}
+
+void sendMIDI(int8_t note, int8_t vel, int8_t chan, int8_t dur)
+{
+  midi_event *m = new midi_event();
+  m->note = note;
+  m->chan = chan;
+  m->dur = millis() + dur;
+  MIDIEvents.add(m);
+  digitalWrite(LED, HIGH);
+  MIDI.sendNoteOn(note, vel, chan);
+/*  Serial.print(F("Sending MIDI on channel "));
+  Serial.print(chan);
+  Serial.print(F(" note "));
+  Serial.print(note);
+  Serial.print(F(" velocity "));
+  Serial.print(vel);
+  Serial.print(F(" duration "));
+  Serial.print(dur);
+  Serial.println();*/
+}
+
+void ledDecay(void)
+{
+  digitalWrite(LED, LOW);
+}
+
+void do_midi_events(void)
+{
+  uint8_t i;
+
+  for (i = 0; i < MIDIEvents.size(); i++)
+  {
+    midi_event *m = MIDIEvents.get(i);
+
+    // If its a mammal, then print it's name
+    if (m->dur < millis())
+    {
+      MIDI.sendNoteOff(m->note, 0, m->chan);
+      MIDIEvents.remove(i);
+    }
+  }
+}