Hello I'm new to this and found a project online. I put it together and pasted in the code. I get an error message saying Compilation error: #include expects "FILENAME" or It doesn't say what file should go next to it in the source material, here is the code.
#include
Servo myservo; // create servo object to control a servo
const int trigPin = 2;
const int echoPin = 4;
void setup() {
// initialize serial communication:
Serial.begin(9600);
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop() {
// and the distance result in centimeters:
long duration, cm;
pinMode(trigPin, OUTPUT);
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(20);
digitalWrite(trigPin, LOW);
pinMode(echoPin, INPUT);
duration = pulseIn(echoPin, HIGH);
// convert the time into a distance
cm = microsecondsToCentimeters(duration);
// the condition for the distance
if ( cm > 7 && cm < 14)
{
myservo.write(140); // sets the servo position according to the scaled value
delay(4000);
}
else if ( cm < 8)
{
myservo.write(40); // sets the servo position according to the scaled value
delay(100);
}
else
{
myservo.write(40); // sets the servo position according to the scaled value
delay(100);
}
Serial.print(cm);
Serial.print("cm");
Serial.println();
delay(100);
}
long microsecondsToCentimeters(long microseconds) {
// The speed of sound is 340 m/s or 29 microseconds per centimeter.
// The ping travels out and back, so to find the distance of the
// object we take half of the distance travelled.
return microseconds / 29 / 2;
}
Any help would be much appreciated!