How to read PWM duty and frequency from pin?

[doglike]

Hi,

I want to read PWM duty and freq from GPIO22. I want to attach a sensor there, that measures 2 things and encodes that to duty (10-90%) and freq (50-250Hz) values.

Does anybody has an example code for me how to do that?

Thanks in advance!

[ESP_morris]

MCPWM Capture feature can help you

[doglike]

Is there any example or a library?
Cannot find anything
For sure, I am not the first, who want to do something like this.

[doglike]

Otherwise I have to go the "hard way" and implement edge-rising/falling interrupts + calculation of duty and freq.
Didn't expect, that there is nothing available

[ESP_Minatel]

Hi,

You can try on our docs here: MCPWM
And this example here: mcpwm_basic_config