main.cpp

00001 #include "mbed.h"
00002 #include "USBMIDI.h"
00003 
00004 USBMIDI midi;
00005 
00006 //Bus of buttons
00007 BusInOut buttons(p21, p22, p23, p24, p25, p26, p29);
00008 
00009 int main() {
00010     uint8_t p_bus = 0;
00011     uint8_t bus = 0;
00012     uint8_t add;
00013     while (1) {
00014         //if buttons state changes, send a MIDI message
00015         bus = buttons.read();
00016         if (bus != p_bus) {
00017             p_bus = bus;
00018             if (p_bus) {
00019                 for (int i = 0; i < 7; i++) {
00020                     add = (p_bus & (1 << i)) ? (i + 1) : 0;
00021                     if (add) {
00022                         midi.write(MIDIMessage::NoteOn(48 + add));
00023                         midi.write(MIDIMessage::NoteOff(48 + add));
00024                     }
00025                 }
00026             }
00027         }
00028         wait(0.001);
00029     }
00030 }