how to change the default frequency of aurdiuno pwm block of simulink support package for aurdiuno?

Hi, the default frequency is 490Hz and i need set PWM frequency=10KHz, how to change the default frequency of aurdiuno pwm block of simulink support package for aurdiuno?

Answer 1

[Zenin Easa Panthakkalakath]

Hi Shivaleela,

Arduino hardware does not support changing the frequency of PWM wave. The frequency of the PWM signal on most pins is approximately 490 Hz. On the Uno and similar boards, pins 5 and 6 have a frequency of approximately 980 Hz.

Regards,

Zenin

[Hariprasad Sl]

Thanks Zenin!

but is there a work around to get the other frequency by modifying timer precsaler using simulink ?

Answer 2

[Simon]

Dear Shivaleela

this topic was discussed several times.

Please see for example:

https://arduinoinfo.mywikis.net/wiki/Arduino-PWM-Frequency

https://www.arduino.cc/en/Tutorial/SecretsOfArduinoPWM

All the best

SImon

Answer 3

[Arun Kumar]

Hi,

Use this library to change the PWM frequency on arduino:

https://in.mathworks.com/matlabcentral/fileexchange/62702-rensselaer-arduino-support-package-library-rasplib

Request for supporting variable PWM frequnecy on arduino is under consideration.

HTH.

[Jos]

Hi,

Any idea when this feature may be updated?

Cheers,

Jos