[Question] `button_matrix` vs. `keyboard_button` differences (AEGHB-1068)

[EFeru]

Hi,
Nice work. I am just a bit puzzled, what is the difference between:
https://github.com/espressif/esp-iot-solution/blob/master/components/button/button_matrix.c
AND
https://github.com/espressif/esp-iot-solution/blob/master/components/keyboard_button/keyboard_button.c

Currently I am using the keyboard_button and it works. However I see the button_matrix has some additional features like double-click, hold, etc

Question: Which one should I use for a normal matrix button? What is the computational efficiency between the two options?

Related: #480

[lijunru-hub]

Please use keyboard_button for keyboard-related key recognition, which requires a specialized circuit and only supports press and release detection.

button_matrix supports common matrix keypads but cannot handle multiple simultaneous key presses.

Regarding efficiency, keyboard_button is the most performant—it supports low power consumption and offers a detection rate greater than 1000 Hz.

[lijunru-hub]

The keyboard_button library is primarily designed for detecting full key rollover in keyboard matrix setups. If you're building a keyboard or need full key rollover support, you can use this library.

[EFeru]

Great answer. The keyboard_button fits my needs. Thanks for your time!