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50 lines
1.3 KiB
Arduino
50 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 the serial transmit pin (pin 1) to send MIDI note data.
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If this circuit is connected to a MIDI synth, it will play
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the notes F#-0 (0x1E) to F#-5 (0x5A) in sequence.
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The circuit:
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* digital in 1 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 30 Aug 2011
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by Tom Igoe
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This example code is in the public domain.
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http://www.arduino.cc/en/Tutorial/MIDI
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*/
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void setup() {
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// Set MIDI baud rate:
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Serial.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 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 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
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// cmd is greater than 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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Serial.write(cmd);
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Serial.write(pitch);
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Serial.write(velocity);
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}
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