Elegoo HC-SR04 Ultrasonic Module Distance Sensor - Equation?

[fksk]

I've got 5x of these I'm playing with.

Everything is connected and configured -> plugin sees my board, reads the sensor, etc.

I'm trying to figure out how to (properly) configure the output and input for the distance sensor.

Here's how it is coded in an Arduino sketch (AKA hello world for this sensor):

/*
 * created by Rui Santos, http://randomnerdtutorials.com
 *
 * Complete Guide for Ultrasonic Sensor HC-SR04
 *
    Ultrasonic sensor Pins:
        VCC: +5VDC
        Trig : Trigger (INPUT) - Pin11
        Echo: Echo (OUTPUT) - Pin 12
        GND: GND
 */


int trigPin = 11;    //Trig - OUTPUT
int echoPin = 12;    //Echo - INPUT
long duration, cm, inches;

void setup() {
  //Serial Port begin
  Serial.begin (9600);
  //Define inputs and outputs
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
}

void loop()
{
  // The sensor is triggered by a HIGH pulse of 10 or more microseconds.
  // Give a short LOW pulse beforehand to ensure a clean HIGH pulse:
  digitalWrite(trigPin, LOW);
  delayMicroseconds(5);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  // Read the signal from the sensor: a HIGH pulse whose
  // duration is the time (in microseconds) from the sending
  // of the ping to the reception of its echo off of an object.
  pinMode(echoPin, INPUT);
  duration = pulseIn(echoPin, HIGH);

  // convert the time into a distance
  cm = (duration/2) / 29.1;
  inches = (duration/2) / 74;

  //Serial.print(inches);
  //Serial.print("in, ");
  Serial.print(cm);
  Serial.print("cm");
  Serial.println();

  delay(250);
}

Hopefully this sensor can be set up!!!

[enigmatheatre]

This might help you. https://forums.homeseer.com/forum/an...istance-module

[fksk]

THANK YOU!!!!!!