Ultrasonic Sensor V3.2 fade a LED depending on distance

Projects Programming
1

What type of code do i need?
I'd looked for over the whole internet and the only thing i could find was the basic PING code
for an ultrasonic sensor with 3 output pins, but i have one with 4 (V3.2).

Thanks!

This is my recent code (the place where i thought i could fade the LED depending on the distance is colored orange).

// # Editor :Jiang from DFRobot
// # Data :18.09.2012

// # Product name:ultrasonic scanner
// # Product SKU:SEN0001
// # Version : 0.2

// # Description:
// # The Sketch for scanning 180 degree area 4-500cm detecting range

// # Connection:
// # Pin 1 VCC (URM V3.2) -> VCC (Arduino)
// # Pin 2 GND (URM V3.2) -> GND (Arduino)
// # Pin 4 PWM (URM V3.2) -> Pin 3 (Arduino)
// # Pin 6 COMP/TRIG (URM V3.2) -> Pin 5 (Arduino)
// #

int led = 9; // the pin that the LED is attached to
int brightness = 0; // how bright the LED is
int fadeAmount = 1; // how many points to fade the LED by

int URPWM = 3; // PWM Output 0?25000US?Every 50US represent 1cm
int URTRIG=5; // PWM trigger pin

unsigned int Distance=0;
uint8_t EnPwmCmd[4]={
0x44,0x02,0xbb,0x01}; // distance measure command

void setup(){ // Serial initialization
Serial.begin(9600); // Sets the baud rate to 9600
PWM_Mode_Setup();
pinMode(led, OUTPUT);

}

void loop()
{
// set the brightness of pin 9:
analogWrite(led, brightness);

PWM_Mode();
Serial.println(Distance);
if(Distance<200) {
brightness = 5;
digitalWrite(led, HIGH);
}

if(Distance<150) {
brightness = 40;
digitalWrite(led, HIGH);
}
if(Distance<125) {
brightness = 120;
digitalWrite(led, HIGH);
}
if (Distance<100) {
brightness = 255;
digitalWrite(led, HIGH);
}
if (Distance>200) {
brightness = 0;
digitalWrite(led, LOW);
}

}
//PWM mode setup function
void PWM_Mode_Setup(){
pinMode(URTRIG,OUTPUT); // A low pull on pin COMP/TRIG
digitalWrite(URTRIG,HIGH); // Set to HIGH

pinMode(URPWM, INPUT); // Sending Enable PWM mode command

for(int i=0;i<4;i++){
Serial.write(EnPwmCmd*);*

  • }*
    }
    *void PWM_Mode(){ *
  • digitalWrite(URTRIG, LOW); // a low pull on pin COMP/TRIG triggering a sensor reading*
  • digitalWrite(URTRIG, HIGH); // reading Pin PWM will output pulses*
  • unsigned long DistanceMeasured=pulseIn(URPWM,LOW);*
  • if(DistanceMeasured==80000){ // the reading is invalid.*
  • Serial.print("Invalid"); *
  • }*
  • else{*
  • Distance=DistanceMeasured/50; // every 50us low level stands for 1cm*
  • }*
  • Serial.print("Distance=");*
  • Serial.print(Distance);*
  • Serial.println("cm");*
    }
2

Do you remember putting italics in your code?

No, I thought not.

Please use code tags.