====== Prove arduino ====== Buzzer_ping : #define trigPin 13 #define echoPin 12 #define DO 10 #define RE 20 #define MI 30 #define FA 40 #define SOL 50 #define LA 60 #define SI 70 int buzzer = 8 ; int caso ; int variabile; int giro = 0; long duration, distanza; void setup() { Serial.begin (115200); pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); pinMode(buzzer, OUTPUT); } void loop() { delay(50); // ??? lasciare ? digitalWrite(trigPin, LOW); // Added this line delayMicroseconds(2); // Added this line digitalWrite(trigPin, HIGH); // delayMicroseconds(1000); - Removed this line delayMicroseconds(10); // Added this line digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distanza = ((duration/2)*10) / 291; if (distanza >= 200 || distanza <= 0){ Serial.println("Fuori portata"); } else { Serial.print(distanza); Serial.println(" cm"); } suona(); programma(); pausa(); } void suona() { if (distanza < DO) { //in base alla distanza noTone(buzzer); //fa silenzio } else if (distanza < RE ) { tone(buzzer, 262); //o riproduce una nota caso = 1; } else if (distanza < MI) { tone(buzzer, 294); caso = 2; } else if (distanza < FA) { tone(buzzer, 330); caso = 3; } else if (distanza < SOL) { tone(buzzer, 349); caso = 4; } else if (distanza < LA) { tone(buzzer, 392); caso = 5; } else { noTone(buzzer); } } void programma() { //serve per avviare la serie di confronti della prossima funzione if (giro == 0) { variabile = caso; ++giro; //dopo il primo loop si disattiva } else { } } void pausa() { if (variabile == caso) { //se la nota appena riprodotta e la precedente sono la stessa non accade nulla } else { //altrimenti c'è una pausa delay(100); variabile = caso; //viene memorizzata la nota corrente } } Buzzer_NewPing : /* library: https://bitbucket.org/teckel12/arduino-new-ping/downloads home project: https://bitbucket.org/teckel12/arduino-new-ping/wiki/Home arduino forum: http://forum.arduino.cc/index.php?topic=106043.0 for verctor_7 error edit NewPing.h file ---> set TIMER_ENABLED false or use NewTone : https://bitbucket.org/teckel12/arduino-new-ping/wiki/Multiple%20Definition%20of%20%22__vector_7%22%20Error */ #include #define TRIGGER_PIN 12 // Arduino pin tied to trigger pin on the ultrasonic sensor. #define ECHO_PIN 11 // Arduino pin tied to echo pin on the ultrasonic sensor. #define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm. #define DO 10 #define RE 20 #define MI 30 #define FA 40 #define SOL 50 #define LA 60 #define SI 70 NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance. int buzzer = 8 ; int distanza ; int caso ; int variabile; int giro = 0; void setup() { Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results. pinMode(buzzer, OUTPUT); } void loop() { delay(50); // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings. unsigned int uS = sonar.ping(); // Send ping, get ping time in microseconds (uS). Serial.print("Ping: "); Serial.print(sonar.convert_cm(uS)); // Convert ping time to distance and print result (0 = outside set distance range, no ping echo) distanza = sonar.convert_cm(uS); Serial.println("cm"); suona(); programma(); pausa(); } void suona() { if (distanza < DO) { //in base alla distanza noTone(buzzer); //fa silenzio } else if (distanza < RE ) { tone(buzzer, 262); //o riproduce una nota caso = 1; } else if (distanza < MI) { tone(buzzer, 294); caso = 2; } else if (distanza < FA) { tone(buzzer, 330); caso = 3; } else if (distanza < SOL) { tone(buzzer, 349); caso = 4; } else if (distanza < LA) { tone(buzzer, 392); caso = 5; } else { noTone(buzzer); } } void programma() { //serve per avviare la serie di confronti della prossima funzione if (giro == 0) { variabile = caso; ++giro; //dopo il primo loop si disattiva } else { } } void pausa() { if (variabile == caso) { //se la nota appena riprodotta e la precedente sono la stessa non accade nulla } else { //altrimenti c'è una pausa delay(100); variabile = caso; //viene memorizzata la nota corrente } } ***TEST*** Button : // NB: ALL NOTES DEFINED WITH STANDARD ENGLISH NAMES, EXCEPT FROM "A" //THAT IS CALLED WITH THE ITALIAN NAME "LA" BECAUSE A0,A1...ARE THE ANALOG PINS ON ARDUINO. // (Ab IS CALLED Ab AND NOT LAb) #define C0 16.35 #define Db0 17.32 #define D0 18.35 #define Eb0 19.45 #define E0 20.60 #define F0 21.83 #define Gb0 23.12 #define G0 24.50 #define Ab0 25.96 #define LA0 27.50 #define Bb0 29.14 #define B0 30.87 #define C1 32.70 #define Db1 34.65 #define D1 36.71 #define Eb1 38.89 #define E1 41.20 #define F1 43.65 #define Gb1 46.25 #define G1 49.00 #define Ab1 51.91 #define LA1 55.00 #define Bb1 58.27 #define B1 61.74 #define C2 65.41 #define Db2 69.30 #define D2 73.42 #define Eb2 77.78 #define E2 82.41 #define F2 87.31 #define Gb2 92.50 #define G2 98.00 #define Ab2 103.83 #define LA2 110.00 #define Bb2 116.54 #define B2 123.47 #define C3 130.81 #define Db3 138.59 #define D3 146.83 #define Eb3 155.56 #define E3 164.81 #define F3 174.61 #define Gb3 185.00 #define G3 196.00 #define Ab3 207.65 #define LA3 220.00 #define Bb3 233.08 #define B3 246.94 #define C4 261.63 #define Db4 277.18 #define D4 293.66 #define Eb4 311.13 #define E4 329.63 #define F4 349.23 #define Gb4 369.99 #define G4 392.00 #define Ab4 415.30 #define LA4 440.00 #define Bb4 466.16 #define B4 493.88 #define C5 523.25 #define Db5 554.37 #define D5 587.33 #define Eb5 622.25 #define E5 659.26 #define F5 698.46 #define Gb5 739.99 #define G5 783.99 #define Ab5 830.61 #define LA5 880.00 #define Bb5 932.33 #define B5 987.77 #define C6 1046.50 #define Db6 1108.73 #define D6 1174.66 #define Eb6 1244.51 #define E6 1318.51 #define F6 1396.91 #define Gb6 1479.98 #define G6 1567.98 #define Ab6 1661.22 #define LA6 1760.00 #define Bb6 1864.66 #define B6 1975.53 #define C7 2093.00 #define Db7 2217.46 #define D7 2349.32 #define Eb7 2489.02 #define E7 2637.02 #define F7 2793.83 #define Gb7 2959.96 #define G7 3135.96 #define Ab7 3322.44 #define LA7 3520.01 #define Bb7 3729.31 #define B7 3951.07 #define C8 4186.01 #define Db8 4434.92 #define D8 4698.64 #define Eb8 4978.03 // DURATION OF THE NOTES #define BPM 120 // you can change this value changing all the others #define H 2*Q //half 2/4 #define Q 60000/BPM //quarter 1/4 #define E Q/2 //eighth 1/8 #define S Q/4 // sixteenth 1/16 #define W 4*Q // whole 4/4 int button =13; int state =0; int programma = 0; void setup() { pinMode(button,INPUT); pinMode(8, OUTPUT); pinMode(9, OUTPUT); digitalWrite(9,LOW); } void loop() { incremento(); if (programma) { funzione(); } if (programma == ) { funzione2(); } if (programma == ) { funzione3(); } } void incremento() { state=digitalRead(button); if (state ==HIGH){ programma=programma+1; if (programma>2) { programma=0; } else { } } else{ } Serial.print("Programma: "); Serial.println(programma); delay(50); } void funzione2 () { } void funzione3 () { } // the loop routine runs over and over again forever: void funzione () { //tone(pin, note, duration) tone(8,LA3,Q); delay(1+Q); //delay duration should always be 1 ms more than the note in order to separate them. tone(8,LA3,Q); delay(1+Q); tone(8,LA3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,LA3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,LA3,H); delay(1+H); tone(8,E4,Q); delay(1+Q); tone(8,E4,Q); delay(1+Q); tone(8,E4,Q); delay(1+Q); tone(8,F4,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,Ab3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,LA3,H); delay(1+H); tone(8,LA4,Q); delay(1+Q); tone(8,LA3,E+S); delay(1+E+S); tone(8,LA3,S); delay(1+S); tone(8,LA4,Q); delay(1+Q); tone(8,Ab4,E+S); delay(1+E+S); tone(8,G4,S); delay(1+S); tone(8,Gb4,S); delay(1+S); tone(8,E4,S); delay(1+S); tone(8,F4,E); delay(1+E); delay(1+E);//PAUSE tone(8,Bb3,E); delay(1+E); tone(8,Eb4,Q); delay(1+Q); tone(8,D4,E+S); delay(1+E+S); tone(8,Db4,S); delay(1+S); tone(8,C4,S); delay(1+S); tone(8,B3,S); delay(1+S); tone(8,C4,E); delay(1+E); delay(1+E);//PAUSE QUASI FINE RIGA tone(8,F3,E); delay(1+E); tone(8,Ab3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); tone(8,LA3,S); delay(1+S); tone(8,C4,Q); delay(1+Q); tone(8,LA3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,E4,H); delay(1+H); tone(8,LA4,Q); delay(1+Q); tone(8,LA3,E+S); delay(1+E+S); tone(8,LA3,S); delay(1+S); tone(8,LA4,Q); delay(1+Q); tone(8,Ab4,E+S); delay(1+E+S); tone(8,G4,S); delay(1+S); tone(8,Gb4,S); delay(1+S); tone(8,E4,S); delay(1+S); tone(8,F4,E); delay(1+E); delay(1+E);//PAUSE tone(8,Bb3,E); delay(1+E); tone(8,Eb4,Q); delay(1+Q); tone(8,D4,E+S); delay(1+E+S); tone(8,Db4,S); delay(1+S); tone(8,C4,S); delay(1+S); tone(8,B3,S); delay(1+S); tone(8,C4,E); delay(1+E); delay(1+E);//PAUSE QUASI FINE RIGA tone(8,F3,E); delay(1+E); tone(8,Ab3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,LA3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,LA3,H); delay(1+H); delay(2*H); } ***TEST*** button 1.0 : // NB: ALL NOTES DEFINED WITH STANDARD ENGLISH NAMES, EXCEPT FROM "A" //THAT IS CALLED WITH THE ITALIAN NAME "LA" BECAUSE A0,A1...ARE THE ANALOG PINS ON ARDUINO. // (Ab IS CALLED Ab AND NOT LAb) #define C0 16.35 #define Db0 17.32 #define D0 18.35 #define Eb0 19.45 #define E0 20.60 #define F0 21.83 #define Gb0 23.12 #define G0 24.50 #define Ab0 25.96 #define LA0 27.50 #define Bb0 29.14 #define B0 30.87 #define C1 32.70 #define Db1 34.65 #define D1 36.71 #define Eb1 38.89 #define E1 41.20 #define F1 43.65 #define Gb1 46.25 #define G1 49.00 #define Ab1 51.91 #define LA1 55.00 #define Bb1 58.27 #define B1 61.74 #define C2 65.41 #define Db2 69.30 #define D2 73.42 #define Eb2 77.78 #define E2 82.41 #define F2 87.31 #define Gb2 92.50 #define G2 98.00 #define Ab2 103.83 #define LA2 110.00 #define Bb2 116.54 #define B2 123.47 #define C3 130.81 #define Db3 138.59 #define D3 146.83 #define Eb3 155.56 #define E3 164.81 #define F3 174.61 #define Gb3 185.00 #define G3 196.00 #define Ab3 207.65 #define LA3 220.00 #define Bb3 233.08 #define B3 246.94 #define C4 261.63 #define Db4 277.18 #define D4 293.66 #define Eb4 311.13 #define E4 329.63 #define F4 349.23 #define Gb4 369.99 #define G4 392.00 #define Ab4 415.30 #define LA4 440.00 #define Bb4 466.16 #define B4 493.88 #define C5 523.25 #define Db5 554.37 #define D5 587.33 #define Eb5 622.25 #define E5 659.26 #define F5 698.46 #define Gb5 739.99 #define G5 783.99 #define Ab5 830.61 #define LA5 880.00 #define Bb5 932.33 #define B5 987.77 #define C6 1046.50 #define Db6 1108.73 #define D6 1174.66 #define Eb6 1244.51 #define E6 1318.51 #define F6 1396.91 #define Gb6 1479.98 #define G6 1567.98 #define Ab6 1661.22 #define LA6 1760.00 #define Bb6 1864.66 #define B6 1975.53 #define C7 2093.00 #define Db7 2217.46 #define D7 2349.32 #define Eb7 2489.02 #define E7 2637.02 #define F7 2793.83 #define Gb7 2959.96 #define G7 3135.96 #define Ab7 3322.44 #define LA7 3520.01 #define Bb7 3729.31 #define B7 3951.07 #define C8 4186.01 #define Db8 4434.92 #define D8 4698.64 #define Eb8 4978.03 // DURATION OF THE NOTES #define BPM 120 // you can change this value changing all the others #define H 2*Q //half 2/4 #define Q 60000/BPM //quarter 1/4 #define E Q/2 //eighth 1/8 #define S Q/4 // sixteenth 1/16 #define W 4*Q // whole 4/4 int button =13; int state =0; int programma = 0; #include #define TRIGGER_PIN 12 // Arduino pin tied to trigger pin on the ultrasonic sensor. #define ECHO_PIN 11 // Arduino pin tied to echo pin on the ultrasonic sensor. #define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm. #define RITARDO 150 #define DO 10 #define RE 20 #define MI 30 #define FA 40 #define SOL 50 #define LA 60 #define SI 70 NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance. int buzzer = 8 ; int distanza ; int caso ; int variabile; int giro = 0; int mode; void primapausa(); void setup() { Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results. pinMode(button,INPUT); pinMode(8, OUTPUT); pinMode(9, OUTPUT); digitalWrite(9,LOW); pinMode(buzzer, OUTPUT); } void loop() { incremento(); mode = programma; while (programma == 0) { funzione(); incremento(); } while (programma == 1) { funzione2(); incremento(); } while (programma == 2) { funzione3(); incremento(); } } void check () { incremento(); if (mode == programma){ } else { loop(); noTone(8); } } void incremento() { state=digitalRead(button); if (state ==HIGH){ programma=programma+1; delay(100); if (programma>2) { programma=0; } else { } } else{ } Serial.print("Programma: "); Serial.println(programma); delay(50); } void funzione2() { delay(RITARDO); // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings. unsigned int uS = sonar.ping(); // Send ping, get ping time in microseconds (uS). // Serial.print("Ping: "); // Serial.print(sonar.convert_cm(uS)); // Convert ping time to distance and print result (0 = outside set distance range, no ping echo) distanza = sonar.convert_cm(uS); // Serial.println("cm"); suona(); // primapausa(); // pausa(); } void primapausa() { if (giro == 0) { //serve per avviare la serie di confronti della prossima funzione variabile = caso; ++giro; //dopo il primo loop si disattiva } if (giro ==1) { pausa(); } } /*void suona() { if (distanza < DO) { //in base alla distanza noTone(buzzer); //fa silenzio } else if (distanza < RE ) { tone(buzzer, 262); //o riproduce una nota caso = 1; } else if (distanza < MI) { tone(buzzer, 294); caso = 2; } else if (distanza < FA) { tone(buzzer, 330); caso = 3; } else if (distanza < SOL) { tone(buzzer, 349); caso = 4; } else if (distanza < LA) { tone(buzzer, 392); caso = 5; } else { noTone(buzzer); } }*/ void suona() { if (distanza < DO) { //in base alla distanza noTone(buzzer); //fa silenzio } else if (distanza < RE ) { tone(buzzer, 262, 1000); //o riproduce una nota caso = 1; } else if (distanza < MI) { tone(buzzer, 294, 1000); caso = 2; } else if (distanza < FA) { tone(buzzer, 330, 1000); caso = 3; } else if (distanza < SOL) { tone(buzzer, 349, 1000); caso = 4; } else if (distanza < LA) { tone(buzzer, 392, 1000); caso = 5; } else { } check(); } void pausa() { if (variabile == caso) { //se la nota appena riprodotta e la precedente sono la stessa non accade nulla } if (variabile != caso) { //altrimenti c'è una pausa delay(100); variabile = caso; //viene memorizzata la nota corrente } } void funzione3 () { check(); } // the loop routine runs over and over again forever: void funzione () { //tone(pin, note, duration) tone(8,LA3,Q); check(); delay(1+Q); //delay duration should always be 1 ms more than the note in order to separate them. tone(8,LA3,Q); delay(1+Q); check(); tone(8,LA3,Q); delay(1+Q); tone(8,F3,E+S); check(); delay(1+E+S); tone(8,C4,S); delay(1+S); check(); tone(8,LA3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); check(); tone(8,C4,S); delay(1+S); tone(8,LA3,H); delay(1+H); check(); tone(8,E4,Q); delay(1+Q); tone(8,E4,Q); check(); delay(1+Q); tone(8,E4,Q); delay(1+Q); check(); tone(8,F4,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); check(); tone(8,Ab3,Q); delay(1+Q); tone(8,F3,E+S); check(); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,LA3,H); delay(1+H); check(); tone(8,LA4,Q); delay(1+Q); tone(8,LA3,E+S); check(); delay(1+E+S); tone(8,LA3,S); delay(1+S); tone(8,LA4,Q); check(); delay(1+Q); tone(8,Ab4,E+S); delay(1+E+S); tone(8,G4,S); delay(1+S); check(); tone(8,Gb4,S); delay(1+S); tone(8,E4,S); delay(1+S); check(); tone(8,F4,E); delay(1+E); delay(1+E);//PAUSE tone(8,Bb3,E); delay(1+E); check(); tone(8,Eb4,Q); delay(1+Q); tone(8,D4,E+S); delay(1+E+S); tone(8,Db4,S); delay(1+S); check(); tone(8,C4,S); delay(1+S); tone(8,B3,S); check(); delay(1+S); tone(8,C4,E); delay(1+E); delay(1+E);//PAUSE QUASI FINE RIGA tone(8,F3,E); delay(1+E); check(); tone(8,Ab3,Q); delay(1+Q); tone(8,F3,E+S); check(); delay(1+E+S); tone(8,LA3,S); delay(1+S); check(); tone(8,C4,Q); delay(1+Q); tone(8,LA3,E+S); delay(1+E+S); check(); tone(8,C4,S); delay(1+S); tone(8,E4,H); delay(1+H); check(); tone(8,LA4,Q); delay(1+Q); tone(8,LA3,E+S); delay(1+E+S); tone(8,LA3,S); delay(1+S); check(); tone(8,LA4,Q); delay(1+Q); tone(8,Ab4,E+S); check(); delay(1+E+S); tone(8,G4,S); delay(1+S); check(); tone(8,Gb4,S); delay(1+S); tone(8,E4,S); delay(1+S); tone(8,F4,E); delay(1+E); check(); delay(1+E);//PAUSE tone(8,Bb3,E); delay(1+E); tone(8,Eb4,Q); check(); delay(1+Q); tone(8,D4,E+S); delay(1+E+S); tone(8,Db4,S); delay(1+S); check(); tone(8,C4,S); delay(1+S); tone(8,B3,S); delay(1+S); check(); tone(8,C4,E); delay(1+E); delay(1+E);//PAUSE QUASI FINE RIGA tone(8,F3,E); check(); delay(1+E); tone(8,Ab3,Q); delay(1+Q); check(); tone(8,F3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); check(); tone(8,LA3,Q); delay(1+Q); tone(8,F3,E+S); delay(1+E+S); tone(8,C4,S); delay(1+S); tone(8,LA3,H); delay(1+H); check(); delay(2*H); } Buzze_Newping 2 : /* library: https://bitbucket.org/teckel12/arduino-new-ping/downloads home project: https://bitbucket.org/teckel12/arduino-new-ping/wiki/Home arduino forum: http://forum.arduino.cc/index.php?topic=106043.0 for verctor_7 error edit NewPing.h file ---> set TIMER_ENABLED false or use NewTone : https://bitbucket.org/teckel12/arduino-new-ping/wiki/Multiple%20Definition%20of%20%22__vector_7%22%20Error */ #include #define TRIGGER_PIN 12 // Arduino pin tied to trigger pin on the ultrasonic sensor. #define ECHO_PIN 11 // Arduino pin tied to echo pin on the ultrasonic sensor. #define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm. #define RITARDO 150 #define DO 10 #define RE 20 #define MI 30 #define FA 40 #define SOL 50 #define LA 60 #define SI 70 NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance. int buzzer = 8 ; int distanza ; int caso ; int variabile; int giro = 0; void primapausa(); void setup() { Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results. pinMode(buzzer, OUTPUT); } void loop() { delay(RITARDO); // Wait 50ms between pings (about 20 pings/sec). 29ms should be the shortest delay between pings. unsigned int uS = sonar.ping(); // Send ping, get ping time in microseconds (uS). // Serial.print("Ping: "); // Serial.print(sonar.convert_cm(uS)); // Convert ping time to distance and print result (0 = outside set distance range, no ping echo) distanza = sonar.convert_cm(uS); // Serial.println("cm"); suona(); // primapausa(); // pausa(); } void primapausa() { if (giro == 0) { //serve per avviare la serie di confronti della prossima funzione variabile = caso; ++giro; //dopo il primo loop si disattiva } if (giro ==1) { pausa(); } } /*void suona() { if (distanza < DO) { //in base alla distanza noTone(buzzer); //fa silenzio } else if (distanza < RE ) { tone(buzzer, 262); //o riproduce una nota caso = 1; } else if (distanza < MI) { tone(buzzer, 294); caso = 2; } else if (distanza < FA) { tone(buzzer, 330); caso = 3; } else if (distanza < SOL) { tone(buzzer, 349); caso = 4; } else if (distanza < LA) { tone(buzzer, 392); caso = 5; } else { noTone(buzzer); } }*/ void suona() { if (distanza < DO) { //in base alla distanza noTone(buzzer); //fa silenzio } else if (distanza < RE ) { tone(buzzer, 262, 1000); //o riproduce una nota caso = 1; } else if (distanza < MI) { tone(buzzer, 294, 1000); caso = 2; } else if (distanza < FA) { tone(buzzer, 330, 1000); caso = 3; } else if (distanza < SOL) { tone(buzzer, 349, 1000); caso = 4; } else if (distanza < LA) { tone(buzzer, 392, 1000); caso = 5; } else { noTone(buzzer); } } void pausa() { if (variabile == caso) { //se la nota appena riprodotta e la precedente sono la stessa non accade nulla } if (variabile != caso) { //altrimenti c'è una pausa delay(100); variabile = caso; //viene memorizzata la nota corrente } }