Arduino Tutorial #10 Ultrasonic sensor as a counter with Arduino

Arduino Tutorial #10 Ultrasonic sensor as a counter with arduino
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#define trigPin 13
#define echoPin 12
int counter = 0;
int currentState = 0;
int previousState = 0;
void setup() {
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
}

void loop() {
long duration, distance;
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1;
//instead of parenthesis () put angle bracket as YouTube description does not allow angle bracket
if (distance (= 10){
currentState = 1;
}
else {
currentState = 0;
}
delay(100);
if(currentState != previousState){
if(currentState == 1){
counter = counter + 1;
}
}
}

[cristianosoares]

if the object stays in front of the sensor it will continue counting, can you give me a lead to resolve this issue?

[echang]

Thank you for sharing this knowing! I was wondering how I can increase the distance to 10ft?

[santiagoabregu]

good job hermano!!!! bendiciones a la familia- Bless You

[gflaig]

I like the Off the ranch music at the beginning 🤣

[rabiibrahimi]

Hi Serdar

thanks for sharing this amazing tutorial, iwas wondering if you know how we can use this sensor to count visitors in and out. is it possible to use just this sensor to count visitors who enters a room and who leaves the room?

many thanks

[kishorekumars]

I done this but circuit is not working