Added Arduino examples.

This commit is contained in:
Francois Best 2012-05-22 21:45:40 +02:00
parent 631184953f
commit 5c5069dcac
4 changed files with 178 additions and 0 deletions

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#include <MIDI.h>
/*
Basic I/O MIDI tutorial
by Franky
28/07/2009
*/
#define LED 13 // LED pin on Arduino board
void setup() {
pinMode(LED, OUTPUT);
MIDI.begin(4); // Launch MIDI with default options
// input channel is set to 4
}
void loop() {
if (MIDI.read()) {
digitalWrite(LED,HIGH); // Blink the LED
MIDI.sendNoteOn(42,127,1); // Send a Note (pitch 42, velo 127 on channel 1)
delay(1000); // Wait for a second
MIDI.sendNoteOff(42,0,1); // Stop the note
digitalWrite(LED,LOW);
}
}

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#include <MIDI.h>
unsigned long gTime_start = 0;
unsigned long gTime_stop = 0;
unsigned gCounter = 0;
unsigned long gTime_sum = 0;
unsigned long gTime_min = -1;
unsigned long gTime_max = 0;
void handleNoteOn(byte inChannel,byte inNote,byte inVelocity)
{
gTime_stop = micros();
const unsigned long diff = gTime_stop - gTime_start;
gTime_sum += diff;
if (diff > gTime_max) gTime_max = diff;
if (diff < gTime_min) gTime_min = diff;
gCounter++;
if (gCounter >= 100) {
const unsigned long average = gTime_sum / (float)gCounter;
Serial.println("Time to receive NoteOn: ");
Serial.print("Average: ");
Serial.print(average);
Serial.println(" microsecs");
Serial.print("Min: ");
Serial.print(gTime_min);
Serial.println(" microsecs");
Serial.print("Max: ");
Serial.print(gTime_max);
Serial.println(" microsecs");
gCounter = 0;
gTime_sum = 0;
gTime_max = 0;
gTime_min = -1;
MIDI.turnThruOff();
}
}
void setup()
{
MIDI.begin();
Serial.begin(38400);
Serial.print("MCU Ready");
MIDI.sendNoteOn(69,127,1);
}
void loop()
{
gTime_start = micros();
MIDI.read();
}

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#include <MIDI.h>
// This function will be automatically called when a NoteOn is received.
// It must be a void-returning function with the correct parameters,
// see documentation here:
// http://arduinomidilib.sourceforge.net/class_m_i_d_i___class.html
void HandleNoteOn(byte channel, byte pitch, byte velocity) {
// Do whatever you want when you receive a Note On.
if (velocity == 0) {
// This acts like a NoteOff.
}
// Try to keep your callbacks short (no delays ect) as the contrary would slow down the loop()
// and have a bad impact on real-time performance.
}
void setup() {
// Initiate MIDI communications, listen to all channels
MIDI.begin(MIDI_CHANNEL_OMNI);
// Connect the HandleNoteOn function to the library, so it is called upon reception of a NoteOn.
MIDI.setHandleNoteOn(HandleNoteOn); // Put only the name of the function
}
void loop() {
// Call MIDI.read the fastest you can for real-time performance.
MIDI.read();
// There is no need to check if there are messages incoming if they are bound to a Callback function.
}

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#include <MIDI.h>
/*
MIDI Input tutorial
by Franky
28/07/2009
NOTE: for easier MIDI input reading,
take a look a the Callbacks example.
*/
#define LED 13 // LED pin on Arduino board
void BlinkLed(byte num) { // Basic blink function
for (byte i=0;i<num;i++) {
digitalWrite(LED,HIGH);
delay(50);
digitalWrite(LED,LOW);
delay(50);
}
}
void setup() {
pinMode(LED, OUTPUT);
MIDI.begin(); // Launch MIDI with default options
// (input channel is default set to 1)
}
void loop() {
if (MIDI.read()) { // Is there a MIDI message incoming ?
switch(MIDI.getType()) { // Get the type of the message we caught
case ProgramChange: // If it is a Program Change
BlinkLed(MIDI.getData1()); // Blink the LED a number of times
// correponding to the program number
// (0 to 127, it can last a while..)
break;
// See the online reference for other message types
default:
break;
}
}
}