Midi Glove

7/30/2019 Midi Glove

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FUNDAO OSWALDO ARANHA

CENTRO UNIVERSITRIO DE VOLTA REDONDACURSO DE GRADUAO EM SISTEMAS DE INFORMAO

ALAN COUTO LOPES

MARIANE GOMES DE CARVALHO

VINCIUS JOS DE SOUZA LOPES SACRAMENTO

MIDI Glove


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1. O PROJETO

Foi construda u

Estes sensores captam

os estmulos so conver

Arduino que os molda e

software conversor de

software com os sons d

O prottipo inici

Ratnieks e publicado no

A estrutura na p

nas portas analgicas:

a luva com sensores LDR colados em

estmulos a partir da luminosidade bloq

tidos em notas pelo programa desenvol

tons e oitavas musicais, os estmulos

M

IDI e depois tem as portas MIDI ide

s instrumentos musicais.

l foi desenvolvido pelo Analista de S

Instructables.Com.

otoboard foi a seguinte para cada sen

quatro dedos.

ueada ou no,

ido na IDE do

assam por um

ntificadas pelo

istemas Bruno

or LDR ligado


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DE PARA

voidMIDI_TX(byte MESSAGE, unsigned

char PITCH, unsigned char VELOCITY)

{

//status = MESSAGE + midichannel;

//status = MESSAGE + pin;

digitalWrite(13,HIGH);

Serial.print(MESSAGE, BYTE);

Serial.print(PITCH);

Serial.print(VELOCITY);

delay(30);

digitalWrite(13,LOW);

}

voidMIDI_TX(byte MESSAGE, unsigned

char PITCH, unsigned char VELOCITY)

{

//status = MESSAGE + midichannel;

//status = MESSAGE + pin;

digitalWrite(13,HIGH);

Serial.write(BYTE(MESSAGE));Serial.print(PITCH);

Serial.print(VELOCITY);

delay(30);

digitalWrite(13,LOW);

}

Para permitir a troca de notas em cada dedo:

DE PARA

unsigned char PadNote[4]={45,55,60,67}; Valores variantes de 0 at 127.

2. LISTA DE MATERIAIS

1 Arduino board UNO com 4 ou mais portas analgicas;

4 Sensores LDR de 5mm;

4 Resistores de 1K;

5 Metros de fio com ncleo slido e de cobre;

1 Luva;

1 Protoboard;

Cabos Jumper;

1 Cabo USB;

1 Folha de EVA;


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4. DIVULGAO DO PROTTIPO

O vdeo com a divulgao do prottipo desenvolvido pode ser acessado

em: http://www.youtube.com/watch?v=KQYWfJ-4GSE&feature=youtu.be.


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REFERNCIAS BIBLIOGRFICAS

Ratinieks, B. SNF Glove Version 1.0. Disponvel em:

http://snipt.org/wngki#expand. Acessado em: Novembro, 2012.

Ratinieks, B. SNF Drumming MIDI Glove using Arduino and light sensors.

Disponvel em: http://www.instructables.com/id/SNF-Drumming-MIDI-Glove-using-Arduino-and-light-se/. Acessado em: Novembro, 2012.

SpiekenzieLabs Serial Midi Converter. Disponvel em:

http://www.spikenzielabs.com/SpikenzieLabs/Serial_MIDI.html. Acessado

em: Novembro, 2012.


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ANEXO I

Cronograma


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ANEXO II

Software Original

// DESCRIPTION:// SNF Drumming Glove Code by Bruno Lacerda Ratnieks - [email protected]// Sniffer Networks Ltda.

// Arduino analog inputs are used to sense LDR hits then send to serial port////// Required - Software:// 1. Serial MIDI converter// 2. FL Studio, Garage Band, Ableton Live etc .//// Code by Bruno Ratnieks// [email protected]// February 2011 for SNF MIDI GLOVE PROJECT v1.0

unsigned char PadNote[4] = {45,55,60,67}; // MIDI notes from 0 to 127 (Mid C = 60)// Imagine a piano roll. 45 55 are keys located on the middle for example.// Tweak it to what sounds better to you.

int CutOff = 40; // This is the minimal amount of analog reading before triggering the note!

int MaxPlayTime[6] = {6500,6500,6500,6500}; // Cycles before a 2nd hit is allowed// Best value after lots of trial and error.

#define midichannel 0; // MIDI channel from 0 to 15 (+1 in "real world")


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//*******************************************************************************************************************// Internal Use Variables//// You should tweak here if it's not optimal yet.// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^// Those values work perfectly when using the small LDR and 1K Resistor. So used it!////*******************************************************************************************************************

boolean activePad[6] = {0,0,0,0}; // Array of flags of pad currently playingint PinPlayTime[6] = {0,0,0,0}; // Counter since pad started to play

int ActivePadMinTime = 100;int PinPauseTimeDelay = 200;int PinPauseTime[4] = {0,0,0,0};

int PinAvailable[4] = {1,1,1,1};

unsigned char status;

int pin = 0;int hitavg = 0;int maxread = 0;int debug = false;

int noteOffset = 0;

//*******************************************************************************************************************// Setup//*******************************************************************************************************************


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void setup()

{Serial.begin(57600); // connect to the serial port 57600

}

//*******************************************************************************************************************// Main Program//*******************************************************************************************************************

void loop(){

for(int pin=0; pin


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if(debug) Serial.println("NoteON");}

}}

if(activePad[pin] == true) {if(debug)Serial.println("activePad[pin] == true");PinPlayTime[pin] += 1;

if(analogRead(pin) > CutOff && PinPlayTime[pin] > ActivePadMinTime){

if(debug) Serial.println("analogRead(pin) > PadCut == TRUE");activePad[pin] = false;PinAvailable[pin] = 2;if(debug)

Serial.println("NoteOFF, available is now false. active is false;");

MIDI_TX((0x80 | pin), PadNote[pin]+noteOffset, 50);PinPlayTime[pin] = 0;

}}

if(PinAvailable[pin] == 2 && PinPauseTime[pin] > PinPauseTimeDelay) {if(debug)Serial.println("PinAvailable[pin] == false && PinPauseTime[pin] > 10");PinAvailable[pin] = true;} else if(PinAvailable[pin] == 2) {if(debug)Serial.println("PinPauseTime[pin] += 1;");


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PinPauseTime[pin] += 1;

}

if(debug)delay(1000);}

}

//*******************************************************************************************************************// Transmit MIDI Message//*******************************************************************************************************************void MIDI_TX(byte MESSAGE, unsigned char PITCH, unsigned char VELOCITY){

//status = MESSAGE + midichannel;//status = MESSAGE + pin;digitalWrite(13,HIGH);

Serial.print(MESSAGE, BYTE);Serial.print(PITCH);Serial.print(VELOCITY);delay(30);digitalWrite(13,LOW);

}

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