#define echoPin 32
#define trigPin 33
#define motionPin 27
#define ledPin 25
long duration;
int distance;
int motionSignal;
void ultrasonic() {
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = duration * 0.034 / 2;
//Serial.print("Distance: ");
//Serial.println(distance);
delay(500);
}
void motion() {
motionSignal=digitalRead(motionPin);
}
void setup() {
Serial.begin(9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
pinMode(motionPin, INPUT);
pinMode(ledPin, OUTPUT);
delay(2000);
}
void loop() {
ultrasonic();
motion();
if(distance<200 && motionSignal==HIGH)
{
Serial.println("child");
digitalWrite(ledPin, HIGH);
delay(1000);
}
else
{
Serial.println("adult");
digitalWrite(ledPin, LOW);
delay(1000);
}
}
// made by Rashi,Sidharth,&