52 lines
1.3 KiB
Arduino
52 lines
1.3 KiB
Arduino
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/*
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MIDI note player
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This sketch shows how to use Serial1 (pins 7 and 8) to send MIDI
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note data. If this circuit is connected to a MIDI synth, it will
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play the notes F#-0 (0x1E) to F#-5 (0x5A) in sequence.
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The circuit:
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* Pin 7 connected to MIDI jack pin 5
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* MIDI jack pin 2 connected to ground
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* MIDI jack pin 4 connected to +5V through 220-ohm resistor
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Attach a MIDI cable to the jack, then to a MIDI synth, and play music.
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created 13 Jun 2006
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modified 2 Jul 2009
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by Tom Igoe
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http://www.arduino.cc/en/Tutorial/MIDI
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Ported to the Maple 27 May 2010
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by Bryan Newbold
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*/
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void setup() {
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// Set MIDI baud rate:
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Serial1.begin(31250);
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}
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void loop() {
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// Play notes from F#-0 (0x1E) to F#-5 (0x5A):
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for (int note = 0x1E; note < 0x5A; note++) {
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// Note on channel 1 (0x90), some note value (note), middle
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// velocity (0x45):
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noteOn(0x90, note, 0x45);
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delay(100);
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// Note on channel 1 (0x90), some note value (note), silent
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// velocity (0x00):
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noteOn(0x90, note, 0x00);
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delay(100);
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}
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}
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// Plays a MIDI note. Doesn't check to see that cmd is greater than
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// 127, or that data values are less than 127:
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void noteOn(int cmd, int pitch, int velocity) {
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Serial1.print(cmd, BYTE);
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Serial1.print(pitch, BYTE);
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Serial1.print(velocity, BYTE);
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}
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