PWM in arduino UNO of 36 KHZ

Projects Programming
1

I want to create PWM of 36KHZ frequency. This is PWM code.

int ledPin = 9;      // LED connected to digital pin 9
int analogPin = 3;   // potentiometer connected to analog pin 3
int val = 0;         // variable to store the read value

void setup()
{
  pinMode(ledPin, OUTPUT);   // sets the pin as output
}

void loop()
{
  val = analogRead(analogPin);   // read the input pin
  analogWrite(ledPin, val / 4);  // analogRead values go from 0 to 1023, analogWrite values from 0 to 255
}

Please help me to change the frequency at 36KHZ.

2

See main discussion here
http://forum.arduino.cc/index.php?topic=399513.new#new
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