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radar.ino
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radar.ino
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#include <Servo.h>
#define ECHO_PIN 2
#define TRIGGER_PIN 3
Servo myservo;
int minAngle = 5;
int maxAngle = 175;
long getDistance();
long getMidDistance(int samples, unsigned long delayMs);
void report(int angle, long distance);
void setup() {
Serial.begin(9600);
myservo.attach(4);
pinMode(TRIGGER_PIN, OUTPUT);
pinMode(ECHO_PIN, INPUT);
}
void loop() {
for (int angle = minAngle; angle <= maxAngle; angle += 1) {
myservo.write(angle);
delay(15);
report(angle, getDistance());
}
for (int angle = maxAngle; angle >= minAngle; angle -= 1) {
myservo.write(angle);
delay(15);
report(angle, getDistance());
}
}
void report(int angle, long distance) {
Serial.print(angle);
Serial.print("+");
Serial.print(distance);
Serial.println("");
}
long getDistance() {
digitalWrite(TRIGGER_PIN, LOW);
delayMicroseconds(2);
digitalWrite(TRIGGER_PIN, HIGH);
delayMicroseconds(10);
digitalWrite(TRIGGER_PIN, LOW);
long duration = pulseIn(ECHO_PIN, HIGH);
// Calculating the distance
return duration * 0.034 / 2;
}