# app_button This is a driver for buttons on ESP development boards. It allows quick registration of callbacks with the BOOT button by default. ## Required configuration If your BOOT button is non-standard, or using a different button, you should configure: - **GPIO pin**: `CONFIG_APP_BUTTON_GPIO_NUM=?` (default: 9) - **Active level**: `CONFIG_APP_BUTTON_IS_ACTIVE_HIGH=[y/n]` (default: y) Or if using `idf.py menuconfig`, then head to `Component config > App Button Configuration`.
idf.py add-dependency "junius-pun/app_button^1.0.0"