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Framed Laser Harp Implementation with MBed, that allows interface with MIDI synthesizers software.
Fork of LaserHarpProj by
Diff: main.cpp
- Revision:
- 1:2b551cb862fe
- Parent:
- 0:4b55d56b6b61
- Child:
- 2:21f0ae3bef8a
--- a/main.cpp Sun Feb 20 13:15:46 2011 +0000 +++ b/main.cpp Mon Dec 08 22:01:13 2014 +0000 @@ -2,8 +2,40 @@ #include "mbed.h" #include "USBMIDI.h" +#include <string> +#include <list> -void show_message(MIDIMessage msg) { +#include <mpr121.h> +AnalogIn laser1 (p20); +AnalogIn laser2(p19); +AnalogIn laser3(p18); +AnalogIn laser4(p17); +AnalogIn laser5(p16); +DigitalOut led1(LED1); +DigitalOut led2(LED2); +DigitalOut led3(LED3); +DigitalOut led4(LED4); + +char str1[100]; +char str2[100]; +char str3[100]; +char str4[100]; +char str5[100]; +Serial pc(USBTX,USBRX); +float val1 = 1; +float val2 = 1; +float val3 = 1; +float val4 = 1; +float val5 = 1; +int flag1 = 0; +int flag2 = 0; +int flag3 = 0; +int flag4 = 0; +int flag5 = 0; + +int interupt = 0; +void show_message(MIDIMessage msg) +{ switch (msg.type()) { case MIDIMessage::NoteOnType: printf("NoteOn key:%d, velocity: %d, channel: %d\n", msg.key(), msg.velocity(), msg.channel()); @@ -11,7 +43,7 @@ case MIDIMessage::NoteOffType: printf("NoteOff key:%d, velocity: %d, channel: %d\n", msg.key(), msg.velocity(), msg.channel()); break; - case MIDIMessage::ControlChangeType: + case MIDIMessage::ControlChangeType: printf("ControlChange controller: %d, data: %d\n", msg.controller(), msg.value()); break; case MIDIMessage::PitchWheelType: @@ -19,19 +51,121 @@ break; default: printf("Another message\n"); - } + } +} + +InterruptIn interrupt(p26); +// Setup the i2c bus on pins 28 and 27 +I2C i2c(p9, p10); + +// Setup the Mpr121: +// constructor(i2c object, i2c address of the mpr121) +Mpr121 mpr121(&i2c, Mpr121::ADD_VSS); + +void fallInterrupt() +{ + int key_code=0; + int i=0; + int value=mpr121.read(0x00); + value +=mpr121.read(0x01)<<8; + i=0; + for (i=0; i<12; i++) { + if (((value>>i)&0x01)==1) key_code=i+1; + } + led4=key_code & 0x01; + led3=(key_code>>1) & 0x01; + led2=(key_code>>2) & 0x01; + led1=(key_code>>3) & 0x01; + interupt = key_code; } USBMIDI midi; -int main() { - midi.attach(show_message); // call back for messages received - while (1) { - for(int i=48; i<83; i++) { // send some messages! - midi.write(MIDIMessage::NoteOn(i)); - wait(0.25); - midi.write(MIDIMessage::NoteOff(i)); - wait(0.5); +float lightScale(float val, float light) +{ + val = light; + return val; +} + + +int main() +{ + pc.baud(19200); + midi.attach(show_message); // call back for messages receive + + while (1) { + fallInterrupt(); + float light1 = laser1; + float light2 = laser2; + float light3 = laser3; + float light4 = laser4; + float light5 = laser5; + float pval1 = val1; + float pval2 = val2; + float pval3 = val3; + float pval4 = val4; + float pval5 = val5; + val1 = lightScale(val1, light1); + val2 = lightScale(val2, light2); + val3 = lightScale(val3, light3); + val4 = lightScale(val4, light4); + val5 = lightScale(val5, light5); + sprintf (str1, "light value 1 = %04f\n", light1); + sprintf (str2, "light value 2= %04f\n", light2); + sprintf (str3, "light value 3= %04f\n", light3); + sprintf (str4, "light value 4= %04f\n", light4); + sprintf (str5, "light value 5= %04f\n", light5); + //wait(1); + pc.printf(str1); + pc.printf(str2); + pc.printf(str3); + pc.printf(str4); + pc.printf(str5); + + if (val1 <0.7 && pval1 > 0.7) { + flag1 = 1; + } else if (val1 < 0.7 && flag1 ==1) { + midi.write(MIDIMessage::NoteOn(60+interupt)); + flag1 = 0; + } else if (val1 >0.7) { + midi.write(MIDIMessage::NoteOff(60+interupt)); + flag1 = 0; + } + if (val2 <0.7 && pval2 > 0.7) { + flag2 = 1; + } else if (val2 < 0.7 && flag2 ==1) { + midi.write(MIDIMessage::NoteOn(62+interupt)); + flag2 = 0; + } else if (val2 >0.7) { + midi.write(MIDIMessage::NoteOff(62+interupt)); + flag2 = 0; + } + if (val3 <0.7 && pval3 > 0.7) { + flag3 = 1; + } else if (val3 < 0.7 && flag3 ==1) { + midi.write(MIDIMessage::NoteOn(64+interupt)); + flag3 = 0; + } else if (val3 >0.7) { + midi.write(MIDIMessage::NoteOff(64+interupt)); + flag3 = 0; + } + if (val4 <0.7 && pval4 > 0.7) { + flag4 = 1; + } else if (val4 < 0.7 && flag4 ==1) { + midi.write(MIDIMessage::NoteOn(65+interupt)); + flag4 = 0; + } else if (val4 >0.7) { + midi.write(MIDIMessage::NoteOff(65+interupt)); + flag4 = 0; + } + if (val5 <0.7 && pval5 > 0.7) { + flag5 = 1; + } else if (val5 < 0.7 && flag5 ==1) { + midi.write(MIDIMessage::NoteOn(67+interupt)); + flag5 = 0; + } else if (val5 >0.7) { + midi.write(MIDIMessage::NoteOff(67+interupt)); + flag5 = 0; } } -} +} \ No newline at end of file