Reversão e freio do motor DC com a shield rele, controle de motor de passo, interface de controle para motor de passo, sensor magnético fim de curso, acionamento do buzzer - Aula 10/15

23º Exercício - Controle do motor de passo.

#include <Stepper.h> const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution // for your motor // initialize the stepper library on pins 8 through 11: Stepper myStepper(stepsPerRevolution, 8, 10, 9, 11); void setup() { // set the speed at 60 rpm: myStepper.setSpeed(30); // initialize the serial port: Serial.begin(9600); } void loop() { // step one revolution in one direction: Serial.println("clockwise"); myStepper.step(stepsPerRevolution); delay(500); // step one revolution in the other direction: Serial.println("counterclockwise"); myStepper.step(-stepsPerRevolution); delay(500); }



24º Exercício - Interface com a shield LCD key pad e motor de passo.

/**** Interface para o controle de motor de passo ****/ //Carrega a biblioteca LiquidCrystal #include <LiquidCrystal.h> //Define os pinos que serão utilizados para ligação ao display LiquidCrystal lcd(3, 2, 7, 6, 5, 4); #include <Stepper.h> const int stepsPerRevolution = 200; // change this to fit the number of steps per revolution // for your motor // initialize the stepper library on pins 8 through 11: Stepper myStepper(stepsPerRevolution, 8, 10, 9, 11); int PassosSentidoHorario = 0; int PassosSentidoAntiHorario = 0; //------------------------------------------------------ Variáveis para a leitura dos botões --------------------------------------------------// int LeituraBotoes = 0; //-----------------------------------------------------Variáveis para a condição do Botão SELECT ---------------------------------------------// int Para = 0; int CliquesBotaoSelect = 0; //-----------------------------------------------------Variáveis para a condição do Botão LEFT -----------------------------------------------// int Para2 = 0; int CliquesBotaoLEFT = 0; //------------------------------------------------------Variáveis para a condição do Botão HIGTH ------------------------------------------------// int Para3 = 0; int CliquesBotaoUP = 0; void setup() { // set the speed at 60 rpm: myStepper.setSpeed(30); // initialize the serial port: Serial.begin(9600); //Define o número de colunas e linhas do LCD lcd.begin(16, 2); } void loop() { //---------------------------------------------------------- Para a leitura dos botões ------------------------------------------------------// LeituraBotoes = analogRead(A0); Serial.println(LeituraBotoes); Serial.println(CliquesBotaoSelect); //-------------------------------------------- Incremento de variáveis a cada clique do botão SELECT -----------------------------------------// if(LeituraBotoes >= 722 && LeituraBotoes <= 726 && Para == 0){ Para = 1; } if(LeituraBotoes >= 1000 && Para == 1){ CliquesBotaoSelect++; Para = 0; } //-------------------------------------------- Incremento de variáveis a cada clique do botão LEFT -----------------------------------------// if(LeituraBotoes >= 484 && LeituraBotoes <= 488 ){ myStepper.step(PassosSentidoHorario); } //-------------------------------------------- Incremento de variáveis a cada clique do botão HIGTH -----------------------------------------// if(LeituraBotoes == 0){ myStepper.step(-PassosSentidoAntiHorario); } //------------------------------------------------------------------ Primeira Tela ------------------------------------------------------------// if (CliquesBotaoSelect == 0){ //-------------------------------------------- Incremento de variáveis a cada clique do botão UP -----------------------------------------// if(LeituraBotoes >= 133 && LeituraBotoes <= 137 && Para2 == 0){ Para2 = 1; } if(LeituraBotoes >= 1000 && Para2 == 1){ PassosSentidoHorario++; Para2 = 0; } //-------------------------------------------- Incremento de variáveis a cada clique do botão Down -----------------------------------------// if(LeituraBotoes >= 311 && LeituraBotoes <= 315 && Para3 == 0){ Para3 = 1; } if(LeituraBotoes >= 1000 && Para3 == 1){ PassosSentidoHorario--; Para3 = 0; } //Limpa a tela lcd.clear(); // C L lcd.setCursor(0, 0); lcd.print("Passos Horario"); // C L lcd.setCursor(0, 1); lcd.print(PassosSentidoHorario); delay(50);//Tempo para a exibição no display não ficar falhada. } //------------------------------------------------------------------ Segunda Tela------------------------------------------------------------// if (CliquesBotaoSelect == 1){ //-------------------------------------------- Incremento de variáveis a cada clique do botão UP -----------------------------------------// if(LeituraBotoes >= 133 && LeituraBotoes <= 137 && Para2 == 0){ Para2 = 1; } if(LeituraBotoes >= 1000 && Para2 == 1){ PassosSentidoAntiHorario++; Para2 = 0; } //-------------------------------------------- Incremento de variáveis a cada clique do botão Down -----------------------------------------// if(LeituraBotoes >= 311 && LeituraBotoes <= 315 && Para3 == 0){ Para3 = 1; } if(LeituraBotoes >= 1000 && Para3 == 1){ PassosSentidoAntiHorario--; Para3 = 0; } //Limpa a tela lcd.clear(); // C L lcd.setCursor(0, 0); lcd.print("Passos Anti H"); // C L lcd.setCursor(0, 1); lcd.print(PassosSentidoAntiHorario); delay(50);//Tempo para a exibição no display não ficar falhada. } if (CliquesBotaoSelect == 2){ CliquesBotaoSelect = 0; } if (PassosSentidoAntiHorario > 400){ PassosSentidoAntiHorario = 400; } if (PassosSentidoAntiHorario < 0){ PassosSentidoAntiHorario = 0; } if (PassosSentidoHorario > 400){ PassosSentidoHorario = 400; } if (PassosSentidoHorario < 0){ PassosSentidoHorario = 0; } }

25º Exercício - Acionamento de LED com sensor magnético reed switch. (colocar o sensor magnético fim de curso no lugar do botão).

void setup() { pinMode(2, OUTPUT);//Declara o pino como saída. pinMode(7, INPUT);//Declara o pino como entrada. } void loop() { if(digitalRead(7) == HIGH){// Se o botão foi precionado. digitalWrite(2, HIGH);//Liga o led. }else{ digitalWrite(2, LOW);//Desliga o led. } }

26º Exercício - Acionamento do buzzer ativo, controle do tempo da ativação.

void setup() { pinMode(9, OUTPUT);//Declara o pino como saída. } void loop() { digitalWrite(9, HIGH);//Liga o led. delay(250); digitalWrite(9, LOW);//Desliga o led. delay(300); digitalWrite(9, HIGH);//Liga o led. delay(250); digitalWrite(9, LOW);//Desliga o led. delay(300); } 

27º Exercício - Sensor de estacionamento com sensor ultrassônico e buzzer.

//Incluindo biblioteca Ultrasonic.h #include "Ultrasonic.h" #define PinoBuzzer 8 //criando objeto ultrasonic e definindo as portas digitais //do Trigger - 6 - e Echo - 7 Ultrasonic ultrasonic(6,7); long microsec = 0; float distanciaCM = 0; void setup() { Serial.begin(9600); //Inicializando o serial monitor pinMode(PinoBuzzer, OUTPUT); } void loop() { //Lendo o sensor microsec = ultrasonic.timing(); //Convertendo a distância em CM distanciaCM = ultrasonic.convert(microsec, Ultrasonic::CM); Serial.print(distanciaCM); Serial.println(" cm"); digitalWrite(PinoBuzzer, HIGH); delay(distanciaCM); digitalWrite(PinoBuzzer, LOW); delay(distanciaCM); }

Exemplos para serem utilizados com buzzer passivo ou altofalante:

Para que o arduino compile esses códigos, antes é necessário adicionar a biblioteca "pitches.h". Deixei tudo pronto para você adicionar, não extraia a basta, basta baixá-la, abrir a IDE do arduino ir em Sketch, Include Library, Add .zip library e abrir a pasta zip que você baixou, e pronto! 

Programas para tocar músicas no arduino:

1 - Sweet Child O' Mine

#include "pitches.h" //Sweet Child O Mine- Guns N Roses------------------------------------------------------------------------------------------------------------------------------- int mainRiffD[] = {NOTE_D4 , NOTE_D5 , NOTE_A4, NOTE_G4, NOTE_G5, NOTE_A4, NOTE_FS5, NOTE_A4}; int mainRiffE[] = {NOTE_E4 , NOTE_D5 , NOTE_A4, NOTE_G4, NOTE_G5, NOTE_A4, NOTE_FS5, NOTE_A4}; int mainRiffG[] = {NOTE_G4 , NOTE_D5 , NOTE_A4, NOTE_G4, NOTE_G5, NOTE_A4, NOTE_FS5, NOTE_A4}; int mainRiffDurations[] = { //d4 d5 a4 g4 g5 g4 fs5 a4 6, 6, 6, 6, 6, 6, 6 , 6}; //---------------------------------------------------------------------------------------------------------------------------------------------- void setup() { for(int introTwoTimes = 0; introTwoTimes < 2; introTwoTimes++){ for(int dTwice = 0; dTwice < 2; dTwice++){ for (int thisNote = 0; thisNote < 8; thisNote++){ int mainRiffDuration = 1000/mainRiffDurations[thisNote]; tone(8, mainRiffD[thisNote], mainRiffDuration); int pauseBetweenNotes = mainRiffDuration * 1.30; delay(pauseBetweenNotes); noTone(8); } } for(int eTwice = 0; eTwice < 2; eTwice++){ for (int thisNote = 0; thisNote < 8; thisNote++){ int mainRiffDuration = 1000/mainRiffDurations[thisNote]; tone(8, mainRiffE[thisNote], mainRiffDuration); int pauseBetweenNotes = mainRiffDuration * 1.30; delay(pauseBetweenNotes); noTone(8); } } for(int gTwice = 0; gTwice < 2; gTwice++){ for (int thisNote = 0; thisNote < 8; thisNote++){ int mainRiffDuration = 1000/mainRiffDurations[thisNote]; tone(8, mainRiffG[thisNote], mainRiffDuration); int pauseBetweenNotes = mainRiffDuration * 1.30; delay(pauseBetweenNotes); noTone(8); } } for(int dTwice = 0; dTwice < 2; dTwice++){ for (int thisNote = 0; thisNote < 8; thisNote++){ int mainRiffDuration = 1000/mainRiffDurations[thisNote]; tone(8, mainRiffD[thisNote], mainRiffDuration); int pauseBetweenNotes = mainRiffDuration * 1.30; delay(pauseBetweenNotes); noTone(8); } } } while(1); } void loop() { }

2 - Marcha Imperial - Star Wars

int speakerPin = 8; #define c 261 #define d 294 #define e 329 #define f 349 #define g 391 #define gS 415 #define a 440 #define aS 455 #define b 466 #define cH 523 #define cSH 554 #define dH 587 #define dSH 622 #define eH 659 #define fH 698 #define fSH 740 #define gH 784 #define gSH 830 #define aH 880 void setup() { pinMode(speakerPin, OUTPUT); } void loop() { march(); } void beep (unsigned char speakerPin, int frequencyInHertz, long timeInMilliseconds) { int x; long delayAmount = (long)(1000000/frequencyInHertz); long loopTime = (long)((timeInMilliseconds*1000)/(delayAmount*2)); for (x=0;x<loopTime;x++) { digitalWrite(speakerPin,HIGH); delayMicroseconds(delayAmount); digitalWrite(speakerPin,LOW); delayMicroseconds(delayAmount); } delay(20); } void march() { beep(speakerPin, a, 500); beep(speakerPin, a, 500); beep(speakerPin, a, 500); beep(speakerPin, f, 350); beep(speakerPin, cH, 150); beep(speakerPin, a, 500); beep(speakerPin, f, 350); beep(speakerPin, cH, 150); beep(speakerPin, a, 1000); beep(speakerPin, eH, 500); beep(speakerPin, eH, 500); beep(speakerPin, eH, 500); beep(speakerPin, fH, 350); beep(speakerPin, cH, 150); beep(speakerPin, gS, 500); beep(speakerPin, f, 350); beep(speakerPin, cH, 150); beep(speakerPin, a, 1000); beep(speakerPin, aH, 500); beep(speakerPin, a, 350); beep(speakerPin, a, 150); beep(speakerPin, aH, 500); beep(speakerPin, gSH, 250); beep(speakerPin, gH, 250); beep(speakerPin, fSH, 125); beep(speakerPin, fH, 125); beep(speakerPin, fSH, 250); delay(250); beep(speakerPin, aS, 250); beep(speakerPin, dSH, 500); beep(speakerPin, dH, 250); beep(speakerPin, cSH, 250); beep(speakerPin, cH, 125); beep(speakerPin, b, 125); beep(speakerPin, cH, 250); delay(250); beep(speakerPin, f, 125); beep(speakerPin, gS, 500); beep(speakerPin, f, 375); beep(speakerPin, a, 125); beep(speakerPin, cH, 500); beep(speakerPin, a, 375); beep(speakerPin, cH, 125); beep(speakerPin, eH, 1000); beep(speakerPin, aH, 500); beep(speakerPin, a, 350); beep(speakerPin, a, 150); beep(speakerPin, aH, 500); beep(speakerPin, gSH, 250); beep(speakerPin, gH, 250); beep(speakerPin, fSH, 125); beep(speakerPin, fH, 125); beep(speakerPin, fSH, 250); delay(250); beep(speakerPin, aS, 250); beep(speakerPin, dSH, 500); beep(speakerPin, dH, 250); beep(speakerPin, cSH, 250); beep(speakerPin, cH, 125); beep(speakerPin, b, 125); beep(speakerPin, cH, 250); delay(250); beep(speakerPin, f, 250); beep(speakerPin, gS, 500); beep(speakerPin, f, 375); beep(speakerPin, cH, 125); beep(speakerPin, a, 500); beep(speakerPin, f, 375); beep(speakerPin, c, 125); beep(speakerPin, a, 1000); }

3 - Música Tema Mário Bros

int portSpeak(8); melodia do MARIO THEMEint melodia[] = {660,660,660,510,660,770,380,510,380,320,440,480,450,430,380,660,760,860,700,760,660,520,580,480,510,380,320,440,480,450,430,380,660,760,860,700,760,660,520,580,480,500,760,720,680,620,650,380,430,500,430,500,570,500,760,720,680,620,650,1020,1020,1020,380,500,760,720,680,620,650,380,430,500,430,500,570,585,550,500,380,500,500,500,500,760,720,680,620,650,380,430,500,430,500,570,500,760,720,680,620,650,1020,1020,1020,380,500,760,720,680,620,650,380,430,500,430,500,570,585,550,500,380,500,500,500,500,500,500,500,580,660,500,430,380,500,500,500,500,580,660,870,760,500,500,500,500,580,660,500,430,380,660,660,660,510,660,770,380}; int duracaodasnotas[] = {100,100,100,100,100,100,100,100,100,100,100,80,100,100,100,80,50,100,80,50,80,80,80,80,100,100,100,100,80,100,100,100,80,50,100,80,50,80,80,80,80,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,150,200,80,80,80,100,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,150,200,80,80,80,100,100,100,100,100,150,150,100,100,100,100,100,100,100,100,100,100,100,100,100,60,80,60,80,80,80,80,80,80,60,80,60,80,80,80,80,80,60,80,60,80,80,80,80,80,80,100,100,100,100,100,100,100}; void setup() { for (int nota = 0; nota < 156; nota++) { int duracaodanota = duracaodasnotas[nota]; tone(portSpeak, melodia[nota],duracaodanota); int pausadepoisdasnotas[] ={150,300,300,100,300,550,575,450,400,500,300,330,150,300,200,200,150,300,150,350,300,150,150,500,450,400,500,300,330,150,300,200,200,150,300,150,350,300,150,150,500,300,100,150,150,300,300,150,150,300,150,100,220,300,100,150,150,300,300,300,150,300,300,300,100,150,150,300,300,150,150,300,150,100,420,450,420,360,300,300,150,300,300,100,150,150,300,300,150,150,300,150,100,220,300,100,150,150,300,300,300,150,300,300,300,100,150,150,300,300,150,150,300,150,100,420,450,420,360,300,300,150,300,150,300,350,150,350,150,300,150,600,150,300,350,150,150,550,325,600,150,300,350,150,350,150,300,150,600,150,300,300,100,300,550,575}; delay(pausadepoisdasnotas[nota]);} noTone(portSpeak); } void loop() { }