How to make your own distance counter with HC-Sr04 ultrasonic sensor and Arduino Uno with code.
This is one of the best steps by step simple tutorial of Technical PK about ai with Arduino, teaching to use ultrasonic sensor hc-sr04 and Arduino Uno, measuring distance using Arduino serial monitor. What happens is that the sensor sends ultrasonic sound waves which reflect back and the time after which the sound reflects back is noted and accordingly the distance from object and sensor is calculated using a formula. This technology is widely used in radar and sonar, even natural species like bats use the same method We also have tried to make one radar of our own and have uploaded the video on YouTube (link given below), We wish that it is your next project.
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Your learning outcomes from this video: -
1) Vast information of this technology and its uses.
2) Now you know to use HC-SR04 sensor with Arduino
3) You know to connect the sensor properly with the Arduino board.
4) You have the code provided by us on your fingertips.
copy this Code in the ide for the project
//code by Technical PK
// for educational purpose only
const int trigPin = 12;
const int echoPin = 13;
long duration;
int distance;
void setup() {
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
Serial.begin(9600);
}
void loop() {
digitalWrite(trigPin, LOW);
delayMicroseconds(10);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance= duration*0.034/2;
Serial.print("Distance in centimetre: ");
Serial.println(distance);
}
Material you need for the project-
1) HC-SR04 ultrasonic sensor
2) Arduino uno board
3) 4 jumper wires
4) A cable to connect Arduino to your computer.
5) A computer
What to do next after this Video: -
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