NRF52840 Input Capture pin

[jagadeesh surneni]

Hi,

We are in developing stage of one of our project.

Integrating Flow sensor with Pulse type output.Can you please suggest a pin to connect with Pulse count feature(Input capture pin) in NRF52840. And want to know whether what can be duty cycle ratio that can be counted and without any CPU core support.

Thanks,

Jagdeesh.

[Jared]

Hi

See this post.

regards

Jared

[Venkatesan]

Hi,Jared

Ok then i will connect to GPIOTE pin to capture.

is there any dependency on duty cycle ratio,and what can be the max frequency it can capture??

Pulse output sensor frequency range

The output frequency range varies somewhat from model to model, but generally ranges from about 5 Hz at the bottom of the flow range for any model to 120 Hz at maximum flow

Will this frequency range is supported by the NRF52840?

Regards,

Venkatesan

[jagadeesh surneni]

Hi,Jared

Ok then i will connect to GPIOTE pin to capture.

is there any dependency on duty cycle ratio,and what can be the max frequency it can capture??

Pulse output sensor frequency range

The output frequency range varies somewhat from model to model, but generally ranges from about 5 Hz at the bottom of the flow range for any model to 120 Hz at maximum flow

Will this frequency range is supported by the NRF52840?

Regards,

JAGADEESH

[Jared]

Hi,

A pulse of 5Hz to 120 Hz should be well within what the nRF52840 can support.