can we get a pwm signal of 10KHZ on arduino uno

Projects General Guidance
1

good morning to every one,

i have seen that the pwm signal that can be generated is about 1KHZ or about 470KHZ in arduino. but cant we generate a pwm signal with much higher frequency say 10KHZ on arduino-uno?

is there any method to generate? if there, pls mention it
is it even possible to do such thing ? if, mention why& if not, mention why not ?

thanks for your answers every one

2

Use the TimerOne library.

3

I though 470 KHz much higher frequency then 10KHz?

Read this
http://playground.arduino.cc/Main/TimerPWMCheatsheet

https://arduino-info.wikispaces.com/Arduino-PWM-Frequency

Timers and counters

const byte OUTPUT_PIN = 3;  // Timer 2 "B" output: OC2B

const byte n = 24;  // for example, 10 kHz

void setup() 
 {
  pinMode (OUTPUT_PIN, OUTPUT);

  TCCR2A = bit (WGM20) | bit (WGM21) | bit (COM2B1); // fast PWM, clear OC2A on compare
  TCCR2B = bit (WGM22) | bit (CS22);         // fast PWM, prescaler of 64
  OCR2A =  n;                                // from table  
  OCR2B = ((n + 1) / 2) - 1;                 // 50% duty cycle
  }  // end of setup

void loop() { }
4 
#include <TimerOne.h>
//UNO only
void setup()
{
pinMode(9,OUTPUT);
Timer1.initialize(100);  //100us = 10khz
Timer1.pwm(9,512);   // 50% DC
// You can use 2 to 1023 
// 0 & 1 gives a constant LOW 
// 1024 gives a constant HIGH
// 2 gives ~125ns HIGH pulses
// 1023 gives ~125ns low pulses
// 512 gives 50us
}

void loop()
{
}