/*
- Rover
+ Rover
Autore: Andrea Manni
#define dEBUG
-//////////////////
-// Funzioni
+// Configurazione parametri: variabili GLOBALI
+// motor one
+const int enA = 6;
+const int in1 = 7;
+const int in2 = 8;
+byte speedA = 255;
+// motor two
+const int enB = 5;
+const int in3 = 4;
+const int in4 = 3;
+byte speedB = 255;
+// Servo vars
+int pos = 0; // variable to store the servo position
+const byte servoPIN =9 ;
+const byte middle = 90; // Centratura servo
+const int spausa = 10; // Pausa movimenti servo
+const byte sx = 10; // Min SX
+const byte dx = 170; // Maz DX
+Servo myservo; // Non c'e' bisogno di extern se e' dichiarato in questo scope
+
+// Ultrasuoni
+const byte trigPIN = 11;
+const byte echoPIN= 12;
+const byte ledPIN = 13;
+long duration;
+int distance;
+const int minDistance = 10;
+
+////////////////////////
+// Funzioni:
+//
+void abilita() {
+// Abilita i PINs come OUTPUTS e attacca un servo
+// Motors
+ pinMode(enA, OUTPUT);
+ pinMode(in1, OUTPUT);
+ pinMode(in2, OUTPUT);
+ pinMode(enB, OUTPUT);
+ pinMode(in3, OUTPUT);
+ pinMode(in4, OUTPUT);
+// Servo
+ pinMode(servoPIN, OUTPUT);
+ myservo.attach(servoPIN); //la libreria servo deve essere sempre inclusa
+// Ultrasonic
+ pinMode(trigPIN, OUTPUT);
+ pinMode(echoPIN, INPUT);
+ pinMode(ledPIN, OUTPUT);
+}
+
+
+// MotorA
+void forwardA() {
+ // Avanzamento motore
+ digitalWrite(in1,LOW);
+ digitalWrite(in2,HIGH);
+ analogWrite(enA,speedA);
+}
+
+void forwardA(byte speedA) {
+ // Avanzamento motore
+ digitalWrite(in1,LOW);
+ digitalWrite(in2,HIGH);
+ analogWrite(enA,speedA);
+}
+
+void backwardA() {
+ // Reverse motore
+ digitalWrite(in2,LOW);
+ digitalWrite(in1,HIGH);
+ analogWrite(enA,speedA);
+}
+
+void backwardA(byte speedA) {
+ // Reverse motore
+ digitalWrite(in2,LOW);
+ digitalWrite(in1,HIGH);
+ analogWrite(enA,speedA);
+}
+
+void stopA() {
+ // Stop
+ digitalWrite(enA,LOW);
+}
+
+// MotorB
+void forwardB() {
+ // Avanzamento motore
+ digitalWrite(in3,LOW);
+ digitalWrite(in4,HIGH);
+ analogWrite(enB,speedB);
+}
+
+void forwardB(byte speedB) {
+ // Avanzamento motore
+ digitalWrite(in3,LOW);
+ digitalWrite(in4,HIGH);
+ analogWrite(enB,speedB);
+}
+
+void backwardB() {
+ // Reverse motore
+ digitalWrite(in4,LOW);
+ digitalWrite(in3,HIGH);
+ analogWrite(enB,speedB);
+}
+
+void backwardB(byte speedB) {
+ // Reverse motore
+ digitalWrite(in4,LOW);
+ digitalWrite(in3,HIGH);
+ analogWrite(enB,speedB);
+}
+
+void stopB() {
+ // Stop
+ digitalWrite(enB,LOW);
+}
+
+
+// Entrambi i motori
+void avanti() {
+ // Drive ahead: funzione composita
+ forwardA() ;
+ forwardB() ;
+}
+void indietro() {
+ // Drive backward: funzione composita
+ backwardA();
+ backwardB();
+}
+void giraSX() {
+ // Gira a DX
+ forwardB() ;
+ backwardA();
+}
+void giraDX() {
+ // Gira a DX
+ forwardA() ;
+ backwardB();
+}
+void stop() {
+ stopA();
+ stopB();
+}
+
+
+
+// Servo
+void servoDX() {
+ // TurnDX
+ while (pos < dx) {
+ myservo.write(pos++);
+ delay(spausa);
+ }
+}
+
+void servoSX() {
+ // TurnSX
+ while (pos > sx) {
+ myservo.write(pos--);
+ delay(spausa);
+ }
+}
+
+void servoMiddle() {
+ // Middle
+ while (pos > middle) {
+ myservo.write(pos--);
+ delay(spausa);
+ }
+ while (pos < middle) {
+ myservo.write(pos++);
+ delay(spausa);
+ }
+}
+
+
+// Ultrasuoni
+boolean distanceCheck() {
+// Verifica se la distanza di un oggetto e' minore di minDistance
+ digitalWrite(trigPIN, LOW); // Prepare for ping
+ delayMicroseconds(2); //
+ digitalWrite(trigPIN, HIGH); // Send a ping
+ delayMicroseconds(10); //
+ digitalWrite(trigPIN, LOW); // Set down ping
+ duration = pulseIn(echoPIN, HIGH);
+ //distance = (duration / 2) / 29.1; // Speed is ~300m/s,
+ // so it takes ~29.1 milliseconds for a cm.
+ distance = (duration / 58.2); // Atmegas are not found of divisions
+ // Distance is half of (out + back)
+#ifdef DEBUG
+Serial.print("Distanza oggetto: ");
+Serial.println(distance);
+#endif
+ if (distance < minDistance) { // This is where the LED On/Off happens
+ return 1;
+ }
+ else {
+ return 0;
+ }
+}
+
+int distanceMonitor() {
+// Ritorna la distanza di un oggetto in cm
+ digitalWrite(trigPIN, LOW); // Prepare for ping
+ delayMicroseconds(2); //
+ digitalWrite(trigPIN, HIGH); // Send a ping
+ delayMicroseconds(10); //
+ digitalWrite(trigPIN, LOW); // Set down ping
+ duration = pulseIn(echoPIN, HIGH);
+ //distance = (duration / 2) / 29.1; // Speed is ~300m/s,
+ // so it takes ~29.1 milliseconds for a cm.
+ distance = (duration / 58.2); // Atmegas are not found of divisions
+ // Distance is half of (out + back)
+
+ return distance;
+}