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-rw-r--r--1-scala-led-potenziometro.ino (renamed from scala-led-potenziometro.ino)0
-rw-r--r--2-temperatura-lm35.ino (renamed from temperatura-lm35.ino)0
-rw-r--r--3-dissolvenza-led-distanza-ultrasuoni.ino (renamed from dissolvenza-led-distanza-ultrasuoni.ino)0
-rw-r--r--4-ethernet-servomotore.ino (renamed from ethernet-servomotore.ino)0
-rw-r--r--5-microfono-relay.ino27
-rw-r--r--6-allarme.ino64
-rw-r--r--7-robot-linefollowing.ino119
7 files changed, 210 insertions, 0 deletions
diff --git a/scala-led-potenziometro.ino b/1-scala-led-potenziometro.ino
index 62a2d45..62a2d45 100644
--- a/scala-led-potenziometro.ino
+++ b/1-scala-led-potenziometro.ino
diff --git a/temperatura-lm35.ino b/2-temperatura-lm35.ino
index a75cb28..a75cb28 100644
--- a/temperatura-lm35.ino
+++ b/2-temperatura-lm35.ino
diff --git a/dissolvenza-led-distanza-ultrasuoni.ino b/3-dissolvenza-led-distanza-ultrasuoni.ino
index a7be908..a7be908 100644
--- a/dissolvenza-led-distanza-ultrasuoni.ino
+++ b/3-dissolvenza-led-distanza-ultrasuoni.ino
diff --git a/ethernet-servomotore.ino b/4-ethernet-servomotore.ino
index a4045e3..a4045e3 100644
--- a/ethernet-servomotore.ino
+++ b/4-ethernet-servomotore.ino
diff --git a/5-microfono-relay.ino b/5-microfono-relay.ino
new file mode 100644
index 0000000..83fe599
--- /dev/null
+++ b/5-microfono-relay.ino
@@ -0,0 +1,27 @@
+int sensorPin = A0; //KY-038 microphone
+int relay = 13;
+int sensorValue = 0;
+bool on = false;
+
+void setup ()
+{
+ pinMode (relay, OUTPUT);
+ digitalWrite (relay, LOW);
+ Serial.begin (9600);
+}
+
+void loop ()
+{
+ sensorValue = analogRead (sensorPin);
+ Serial.println (sensorValue, DEC);
+ if (sensorValue > 500) {
+ /*if (on == true) {
+ on = false;
+ } else {
+ on = true;
+ }*/
+ on = !on;
+ }
+ digitalWrite (relay, on);
+ delay(100);
+} \ No newline at end of file
diff --git a/6-allarme.ino b/6-allarme.ino
new file mode 100644
index 0000000..211ca30
--- /dev/null
+++ b/6-allarme.ino
@@ -0,0 +1,64 @@
+// nota, frequenza (Hz).
+#define Do4 261
+#define Re4 294
+#define Mi4 329
+#define Fa4 349
+#define Sol4 392
+#define La4 440
+#define Si4 493
+#define Do5 523
+
+// Una pausa è una nota con frequenza zero
+#define P 0
+
+
+const int buttonPin = 2;
+// Il buzzer deve essere collegato a un pin PWM
+int speakerOut = 9;
+
+void setup() {
+ pinMode(buttonPin, INPUT);
+ pinMode(speakerOut, OUTPUT);
+}
+
+// melody[] è l'array con le varie note da suonare
+// beats[] è l'array con la durata di ciascuna nota da suonare in frazioni di semibreve
+int melody[] = { La4, La4, Si4, Do5, Do5, Si4, La4, Sol4, Fa4, Fa4, Sol4, La4, La4, Sol4, Sol4, P };
+int beats[] = { 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 8, 2, 1 };
+int MAX_COUNT = sizeof(melody) / 2; // Calcoliamo la dimensione degli array
+
+//Tempo della nota semibreve in millesimi di secondo
+long tempo = 4000;
+// Pausa tra le note in milionesimi di secondo
+int pause = 1000;
+
+
+int tone_ = 0;
+int beat = 0;
+long duration = 0;
+int volume = 1023;
+
+
+void loop() {
+ if (digitalRead(buttonPin) == LOW) {
+ // Scorriamo tutte le note e le rispettive durate
+ for (int i=0; i<MAX_COUNT; i++) {
+ tone_ = melody[i];
+ beat = beats[i];
+
+
+ duration = (tempo)/beat; // Calcoliamo la durata in millisecondi della nota attuale
+ if (tone_ > 0) {
+ if (digitalRead(buttonPin) == HIGH) break;
+ noTone(speakerOut);
+ tone(speakerOut,tone_,duration);
+ delay(duration);
+ // Piccola pausa dopo la nota
+ delayMicroseconds(pause);
+
+ } else {
+ delay(duration);
+ }
+ }
+ }
+}
diff --git a/7-robot-linefollowing.ino b/7-robot-linefollowing.ino
new file mode 100644
index 0000000..b655bf6
--- /dev/null
+++ b/7-robot-linefollowing.ino
@@ -0,0 +1,119 @@
+/*
+basato sul codice di esempio di Arvind Sanjeev per il set di sensori QTR-8A
+
+ */
+#include <Servo.h>
+
+Servo left;
+Servo right;
+
+int mid = 0;
+int mn = 1023;
+int mx = 0;
+
+void setup()
+{
+
+left.attach(9, 800, 2200); //left servo motor
+right.attach(10, 800, 2200); //right servo motor
+
+Serial.begin(9600);
+
+digitalWrite(13, LOW);
+
+right.write(90);//stop signal
+left.write(90);//stop signal
+
+for(int i=0; i<5000; i++)
+{
+digitalWrite(13, HIGH);
+
+for(int j=0; j<=5; j++)//Calibrating the sensor, finding max and
+{ //min reflectance values.
+int val = analogRead(j);
+if(val >= mx)
+mx = val;
+if(val <= mn)
+mn = val;
+}
+delay(1);
+}
+
+mid = ((mx + mn)/2);
+digitalWrite(13, LOW);
+
+right.write(90);
+left.write(90);
+}
+
+void loop()
+{
+
+int s0 = analogRead(0);//Signal pin 1 on the board
+int s1 = analogRead(1);//Signal pin 2 on the board
+int s2 = analogRead(2);//Signal pin 3 on the board
+int s3 = analogRead(3);//Signal pin 4 on the board
+int s4 = analogRead(4);//Signal pin 5 on the board
+int s5 = analogRead(5);//Signal pin 6 on the board
+
+
+Serial.print("Mid: ");
+Serial.print(mid);
+Serial.print(" ");
+Serial.print(s0);
+Serial.print(" ");
+Serial.print(s1);
+Serial.print(" ");
+Serial.print(s2);
+Serial.print(" ");
+Serial.print(s3);
+Serial.print(" ");
+Serial.print(s4);
+Serial.print(" ");
+Serial.print(s5);
+Serial.print(" ");
+Serial.println();
+
+right.write(180);//Move forward
+left.write(0);//Move forward
+
+delay(1);
+
+int averageLeft = (s0+s1+s2)/3;
+int averageRight = (s3+s4+s5)/3;
+
+
+if(((averageLeft)>((averageRight)+240)))//Move right
+{
+right.write(130);//180
+left.write(90);//90
+Serial.print(" RIGHT");
+delay(abs((averageRight-(averageLeft))/2));
+}
+
+if(((averageLeft)<((averageRight)-240)))//Move left
+{
+right.write(90);//90
+left.write(40);//0
+Serial.print(" LEFT");
+delay(abs(((averageRight)-(averageLeft))/2));
+}
+
+if((s0 > mid)&&(s5 > mid))//Stop if all the sensors give low
+{ //reflectance values
+right.write(90);
+left.write(90);
+Serial.print(" STOP");
+
+for(int k=0; k<50; k++)
+{
+digitalWrite(13, HIGH);
+delay(100);
+digitalWrite(13, LOW);
+delay(100);
+}
+delay(5000);
+}
+
+
+}