adding main c file

main.c

@@ -0,0 +1,110 @@
+#define trigPin1 A5
+#define echoPin1 A4
+
+#define trigPin2 A3
+#define echoPin2 A2
+
+#define trigPin3 A1
+#define echoPin3 A0
+
+#define buzzer 3
+#define vibrator1 5
+#define vibrator2 6
+
+void setup()
+{
+  Serial.begin(9600);
+  pinMode(trigPin1, OUTPUT);
+  pinMode(echoPin1, INPUT);
+
+  pinMode(trigPin2, OUTPUT);
+  pinMode(echoPin2, INPUT);
+
+  pinMode(trigPin3, OUTPUT);
+  pinMode(echoPin3, INPUT);
+
+  pinMode(buzzer, OUTPUT);
+  pinMode(vibrator1, OUTPUT);
+  pinMode(vibrator2, OUTPUT);
+}
+
+void loop()
+
+{
+  long duration, distance;
+
+  // Read distance for buzzer
+  digitalWrite(trigPin1, LOW); 
+  delayMicroseconds(2); 
+  digitalWrite(trigPin1, HIGH);
+  delayMicroseconds(1);
+  digitalWrite(trigPin1, LOW);
+
+  duration = pulseIn(echoPin1, HIGH);
+  distance = (duration/2) / 29.1;
+
+  // Actuate Buzzer
+  if (distance < 50)
+  { 
+    Serial.println(distance);
+    digitalWrite(buzzer,HIGH);
+    Serial.println("Buzzer - HIGH");
+  }
+  else
+  {
+    Serial.println(distance);
+    digitalWrite(buzzer,LOW);
+    Serial.println("Buzzer - LOW");
+  }
+  delay(50);
+
+  // Read distance for Vibrator 1
+  digitalWrite(trigPin2, LOW); 
+  delayMicroseconds(2); 
+  digitalWrite(trigPin2, HIGH);
+  delayMicroseconds(1); 
+  digitalWrite(trigPin2, LOW);
+
+  duration = pulseIn(echoPin2, HIGH);
+  distance = (duration/2) / 29.1;
+
+  // Actuate Vibrator1
+  if (distance < 20)
+  { 
+    Serial.println(distance);
+    digitalWrite(vibrator1,HIGH);
+    Serial.println("Vibrator1 - HIGH");
+  }
+  else
+  {
+    Serial.println(distance);
+    digitalWrite(vibrator1,LOW);
+    Serial.println("vibrator 2 LOW");
+  }
+  delay(50);
+
+  // Read distance for Vibrator 2
+  digitalWrite(trigPin3, LOW); 
+  delayMicroseconds(2); 
+  digitalWrite(trigPin3, HIGH);
+  delayMicroseconds(1); 
+  digitalWrite(trigPin3, LOW);
+
+  duration = pulseIn(echoPin3, HIGH);
+  distance = (duration/2) / 29.1;
+
+  // Actuate Vibrator 2
+  if (distance < 20)
+  {
+    Serial.println(distance);
+    digitalWrite(vibrator2, HIGH); 
+    Serial.println("Vibrator 2 - HIGH");
+  }
+  else
+  {
+    Serial.println(distance);
+    digitalWrite(vibrator2, LOW);
+    Serial.println("Vibrator 2 - LOW");
+  }
+  delay(50);
+}