52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
#include <MIDI.h>
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USING_NAMESPACE_MIDI
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struct MyMIDISettings : public MIDI_NAMESPACE::DefaultSettings
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{
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// When setting UseReceiverActiveSensing to true, MIDI.read() *must* be called
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// as often as possible (1000 / SenderActiveSensingPeriodicity per second).
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//
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// setting UseReceiverActiveSensing to true, adds 174 bytes of code.
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//
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// (Taken from a Roland MIDI Implementation Owner's manual)
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// Once an Active Sensing message is received, the unit will begin monitoring
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// the interval between all subsequent messages. If there is an interval of 420 ms
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// or longer between messages while monitoring is active, the same processing
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// as when All Sound Off, All Notes Off,and Reset All Controllers messages are
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// received will be carried out. The unit will then stopmonitoring the message interval.
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static const bool UseReceiverActiveSensing = true;
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static const uint16_t ReceiverActiveSensingTimeout = 420;
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};
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MIDI_CREATE_CUSTOM_INSTANCE(HardwareSerial, Serial1, MIDI, MyMIDISettings);
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void activeSensingTimeoutExceptionHandler(bool active)
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{
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if (!active)
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{
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MIDI.sendControlChange(AllSoundOff, 0, 1);
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MIDI.sendControlChange(AllNotesOff, 0, 1);
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MIDI.sendControlChange(ResetAllControllers, 0, 1);
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digitalWrite(LED_BUILTIN, HIGH);
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}
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else
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digitalWrite(LED_BUILTIN, LOW);
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}
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void setup()
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{
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pinMode(LED_BUILTIN, OUTPUT);
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digitalWrite(LED_BUILTIN, LOW);
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MIDI.setHandleActiveSensingTimeout(activeSensingTimeoutExceptionHandler);
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MIDI.begin(1);
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}
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void loop()
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{
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MIDI.read();
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}
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