81 lines
1.5 KiB
Arduino
81 lines
1.5 KiB
Arduino
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// Teensy2.0 MIDI CLOCK INTERFACE //
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// by 2kohm //
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// 18. Aprill 2014 //
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// http://stromakustik.de //
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// //
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// Teensyduino MIDI Beat Clock //
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// by Sebastian Tomczak //
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// 29 August 2011 //
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// http://www.goo.gl/Xh2skw //
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// Bytes
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byte counter;
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byte CLOCK = 1;
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byte START = 1;
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byte CONTINUE = 5;
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byte STOP = 20;
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byte divider;
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// Var
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int pot1 = 0;
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int clockdivider = clockdivider; // MIDI Clock Divider
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// Setup
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void setup()
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{
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Serial.begin(31250);
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pinMode(10, OUTPUT);
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pinMode(1, INPUT);
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pinMode(11, OUTPUT);
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digitalWrite(10, HIGH);
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// MIDI RealTime System
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usbMIDI.setHandleRealTimeSystem(RealTimeSystem);
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}
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void loop()
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{
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// Midi Clock Divider
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divider = (analogRead(0)/250); // Read Pot 1 (scale 0 - 4)
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if(divider == 0) { clockdivider = 24;} // 1/4
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if(divider == 1) { clockdivider = 12;} // 1/8
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if(divider == 2) { clockdivider = 6;} // 1/16
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if(divider == 3) { clockdivider = 3;} // 1/32
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if(divider == 4) { clockdivider = 2;} // 1/64
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Serial.println(divider); // Display the Pot value ( 0 - 4)
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usbMIDI.read();
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}
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void RealTimeSystem(byte realtimebyte)
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{
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if(realtimebyte == 248)
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{
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counter++;
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if(counter == clockdivider)
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{
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counter = 0;
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digitalWrite(10, HIGH);
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}
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if(counter == 1)
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{
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digitalWrite(10, LOW);
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}
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}
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if(realtimebyte == START || realtimebyte == CONTINUE)
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{
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counter = 0;
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digitalWrite(10, HIGH) ;
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}
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if(realtimebyte == STOP)
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{
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digitalWrite(10, LOW);
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}
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}
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