Uno + XL MaxSonar EZ1 MB1210 + Director 11.5 + Serial Xtra...

Using Arduino Sensors
2

Hi there, i want to use this script with a ultrasoon sensor HC-SR04. I changed the script a bit and added a library etc, but it only gives the distances in cm, but does not changes the variables ' if' in brightness...

What am i doing worng? I am still a noob with these things...But i am trying.
I hope someone can help me in the right direction.

thanks.

This is the code i have made now.

#include <NewPing.h>
#define TRIGGER_PIN  9   // Arduino pin verbonden met trigger pin op de ultrasonic sensor.
#define ECHO_PIN     8   // Arduino pin verbonden met echo pin op de ultrasonic sensor.
#define MAX_DISTANCE 250 // Maximale afstand die ik wil meten (in centimeters). 
#define REDPIN 5         // Rood van de rgb strip
#define GREENPIN 6       // Groen van de rgb strip
#define BLUEPIN 3        // Blauw van de rgb strip


NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup voor de pins en maximale afstand.

long cm;
long old_cm = cm;

//bewaard oude afstanden in de cyclus
long old_b;
long new_b;  
  
  
void setup() {
  Serial.begin(9600); // Open serial monitor op 9600 baud voor resultaat.
  pinMode(REDPIN, OUTPUT);
  pinMode(GREENPIN, OUTPUT);
  pinMode(BLUEPIN, OUTPUT);
  pinMode(TRIGGER_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
}

void loop() {
  delay(200);                      // wacht 75ms tussen metingen (ong. 15 pings/sec).
  unsigned int uS = sonar.ping(); // Stuur meting, ontvangst meting in microseconde(uS).
  Serial.print("afstand: ");
  Serial.print(sonar.convert_cm(uS)); // Zet meettijd om in afstand en print resultaat (0 = maximale afstands bereik, geen meet resultaat)
  Serial.println("cm");
  Serial.print(new_b);
  Serial.println(": helderheid");
  Serial.print(cm);
  Serial.println(": cm");
 
  if (cm < 16) {
    cm = 0;
    Serial.println(" 0");
  } else if (cm < 20) {
    Serial.println(" 1");
    cm = 20;
  } else if (cm < 30) {
    Serial.println(" 2");
    cm = 30;
  } else if (cm < 40) {
    Serial.println(" 3");
    cm = 40;
  } else if (cm < 50) {
    Serial.println(" 4");
    cm = 50;
  } else if (cm < 60) {
    Serial.println(" 5");
    cm = 60;
  } else if (cm < 70) {
    Serial.println(" 6");
    cm = 70;
  } else if (cm < 80) {
    Serial.println(" 7");
    cm = 80;
  } else if (cm < 90) {
    Serial.println(" 8");
    cm = 90;
  } else if (cm < 100) {
    Serial.println(" 9");
    cm = 100;
  } else if (cm < 110) {
    Serial.println(" 10");
    cm = 110;
  } else if (cm < 120) {
    Serial.println(" 11");
    cm = 120;
  } else if (cm < 130) {
    Serial.println(" 12");
    cm = 130;
  } else if (cm < 140) {
    Serial.println(" 13");
    cm = 140;
  } else if (cm < 150) {
    Serial.println(" 14");
    cm = 150;
  } else if (cm < 160) {
    Serial.println(" 15");
    cm = 160;
  } else if (cm < 170) {
    Serial.println(" 16");
    cm = 170;
  } else if (cm < 180) {
    Serial.println(" 17");
    cm = 180;
  } else if (cm < 190) {
    Serial.println(" 18");
    cm = 190;
  } else {
    Serial.println(" 19");
    cm = 200;
}

new_b = map(cm, 20, 200, 255, 0);
old_b = map(old_cm, 20, 200, 255, 0);


  
  if (old_b <= new_b){
    for (long z = old_b; z < new_b; z++) { 
        analogWrite(REDPIN, z);
        analogWrite(BLUEPIN, z);
        analogWrite(GREENPIN, z);
        delay(2);
    }
  }
  else {
    for (long z = old_b; z > new_b; z--) { 
       analogWrite(REDPIN, z);
       analogWrite(BLUEPIN, z);
       analogWrite(GREENPIN, z);
       delay(2);
    } 
  
  }
  
  old_cm = cm;
  

}