Introduction: Sonar Range Finder by Omar and Lucas
This is how you create a sonar range finder using arduino.
First Gather these materials:
- UNO Arduino board
- four cables
- a bread board
- arduino sonar
Supplies
First Gather these materials:
- UNO Arduino board
- four cables
- a bread board
- arduino sonar
Step 1: Constructing the Board
first connect the cables to the arduino board to the breadboard so that the cables are connected to specific parts of the sonar, so that 5v to vcc, pin9 to trig pin10 to Echo, Ground to Gnd.
picture from https://randomnerdtutorials.com/complete-guide-for-ultrasonic-sensor-hc-sr04/
Step 2: Coding
Code this
int trigPin = 9;
int echoPin = 10;
float duration;
void setup() { pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
Serial.begin(9600); }
void loop()
{
Serial.begin(9600);
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
duration = pulseIn(echoPin, HIGH);
Serial.println(duration);
delay(100); }
Step 3: Testing
place a flat object a specific distance away from the sonar, than record that in to the code so that the code will be able to accurately tell the distance