Arduino Tutorial #10 Ultrasonic sensor as a counter with Arduino

Arduino Tutorial #10 Ultrasonic sensor as a counter with arduino
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LIST OF COMPONENT (affiliate links)
amzn.to/2fvSRJq (Arduino)
amzn.to/2vmUlLw (Ultrasonic sensor)
amzn.to/2wxPmWz (Breadboard)
amzn.to/2vJ3lvo (Jumper wire)
#define trigPin 13
#define echoPin 12
int counter = 0;
int currentState = 0;
int previousState = 0;
void setup() {
Serial.begin (9600);
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 TH-cam 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;
Serial.println(counter);
}
}
}

[@dhmy82]

Do we need battery in this project?

[@santiagoabregu691]

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

[@gflaig9131]

I like the Off the ranch music at the beginning 🤣

[@EthanChang-m3t]

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

[@cristianosoares2574]

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

[@ansithreddy]

even i have the same problem

[@anujsaini9353]

@@ansithreddy IR & uLTRASONICS SESNSOR can't help for the desire result. For that 3D depth camera can help.

[@anujsaini9353]

I'm also working with the same kind of project. Hope soon I will resolve it.

[@SaleemMukhtiar32]

@@anujsaini9353 have you resolved

[@saglamserkann]

Thank you bro!

[@malayparvadiya6043]

How to restart counter after 100..??

[@regiamonche4678]

👍🏻👍🏻👍🏻👍🏻 working

[@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

[@RoboticaDIY]

Rabii Brahimi only using single sensor it is not possible, because we cant detect it is entering or leaving. but by using two sensor it is possible to detect visitors who enters or leaves the room. you can watch this video i have already made for visitor counter th-cam.com/video/TI6mx3jtoY0/w-d-xo.html

[@rabiibrahimi]

Hi Many thanks the other tutorial is fantastic although i am confused how to use the code because i will not be using any LCD i just want to check if an object pass by 1st and 2nd sensors it should count 1 otherwise it should count -1 if the other way around. the reason why i asked you previousely if this could be done with one sensor because of this video th-cam.com/video/FmI34Y2t1pM/w-d-xo.html the guy is using only on sensor but he didn't share anything about the code and didn't even care to reply to people comments :(
I really appreciate your help and how you share knowledge with others :)

[@RoboticaDIY]

Hi, i got it what he is doing. I think he is making difference between visitor entering and leaving by distance. I will post same video soon with code.
and you can change lcd.begin() to Serial.begin(9600), and also change lcd.print to Serial.println(variable). so that you can see counting on your serial monitor.

[@rabiibrahimi]

Many thanks
looking forward to seeing the next video with one sensor :)

[@RoboticaDIY]

th-cam.com/video/AZrYysD6QsI/w-d-xo.html

[@uptownnj]

THANKS FOR THE VIDEO YOU THE BEST

[@uptownnj]

CODE IS NOT WORKING HELP PLEASE

[@RoboticaDIY]

@ Serdar Kocan sometimes copy & paste causes error. please try to write this code by watching it on my website.

[@uptownnj]

thanks for quick reply I just fixed it Now i have another quesion if you help that will be a lot to me How to change the frequency Because if i hold the object more than 1 second It counts more than 5-6 times I want the sensor count 1 not more than 1 THANKS

[@RoboticaDIY]

@ Serdar Kocan increase delay time. if you want to hold up to 1 second then increase delay time from "delay(100)" to "delay(1000)". do some trial and error to find best suitable delay time for your project.

[@luchienling]

Thank boss^^

[@anujsaini9353]

it's a poor coding.

[@kishorekumars2058]

I done this but circuit is not working

[@RoboticaDIY]

@Kishore S, first of all check you ultrasonic is connected properly or not and also check jumper wire is not faulty. it should work.

[@kishorekumars2058]

@@RoboticaDIY yeah! It's working thank you

[@okosasztal]

@@RoboticaDIY Hello! May i have your email address please? Thank you!

[@kishorekumars2058]

Can you explain clearly