#define dEBUG
-// Configurazione con OUTPUT digitali
+// Configurazione parametri: variabili GLOBALI
// motor one
const int enA = 6;
const int in1 = 7;
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
+// 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);
+ myservo.attach(servoPIN); //la libreria servo deve essere sempre inclusa
+// Ultrasonic
+ pinMode(trigPIN, OUTPUT);
+ pinMode(echoPIN, INPUT);
+ pinMode(ledPIN, OUTPUT);
}
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;
+}