How to use app_timer_cnt_diff_compute

[Nils Minor]

Hi,

i need to handle a button detection Time, i mean when i push the button for 2 seconds something should happen. How can i use the app_timer_cnt_diff_compute function for that?

Best regards Nils

[Ole Morten]

There isn't currently any automatic way to do this, and the easiest method is currently to register a user directly in app_gpiote. This module gives an event both on a falling and rising edge, and is what app_button relies on internally.

By doing this, you can start a 2 second timer on the falling edge, and stop it on the rising edge. If the button is held for more than 2 seconds, the timeout handler will run, in which you can do whatever action you need.

The app_gpiote module can be used with something like the attached file.

app_gpiote_usage.c

[Nils Minor]

Hi, thanks for the answer. Do you have an example how to register gpiote user? I didn't understand how to realy use the gpiote.

Nils

[Ole Morten]

See the attachment I just added.

[Nils Minor]

Thank you, it works :)