pwm frequency ?

Using Arduino Programming Questions
1

am i correct the pwm frequency is 500 hz

how can the speed of the frequency be changed

is there a maximum the frequency can be ?

2

Useful function:

http://arduino.cc/playground/Code/PwmFrequency

3

Have a look at Arduino Playground - TimerPWMCheatsheet and http://arduino.cc/en/Tutorial/SecretsOfArduinoPWM too.

4

thanks guys :slight_smile:

does this mean the standard pwm frequency on an arduino is 31250 hz ?

5

No, the standard frequency is just short of 490 Hz.

1.6×107 ÷ 215

6

Can you explain those calcs please
1.6 x 10^7 must be the proceasor speed what is the rest?

Does this mean the max frequency is 31250 hz