Zephyr debounce support

[Hiroshi]

I am developing a firmware for nRF52810.

Does Zephyr support debounce care for push button switches in ncs v2.6.1?

It seems that CAF supports it, but I don't plan to use CAF.

According to the following document, debounce related properties can be found in the "gpio-keys" node.

Where can I find an example of how to use that property?

docs.zephyrproject.org/.../gpio-keys.html

[Hieu]

Hi Hiroshi,

It seems that the default Zephyr GPIO driver has some software debouncing integrated.
The feature is requested here: https://github.com/zephyrproject-rtos/zephyr/issues/52344
and added here: https://github.com/zephyrproject-rtos/zephyr/pull/52698.

It is also documented here: gpio-keys (nordicsemi.com).

Please give it a try and see if it works for you.

If that doesn't match your requirement, then there is an article from Golioth on how to setup your own debouncing on the Zephyr project site: How to Debounce Button Inputs in Real Time Operating Systems – Zephyr Project.

Hieu