Mechanical Buttons

The ATSAMR30M Sensor Board contains two mechanical buttons:

Reset button (RS_BTN) connected to the ATSAMR30M Reset line
- When the RS_BTN button is pressed, the Reset line is driven to ground, which resets the module
Generic user-configurable button (USR_BTN)
- When the USR_BTN button is pressed, the I/O line is driven to ground

Note: The PA28 pin connected with USR_BTN can be used as a wake-up source from the Backup mode of the ATSAMR30M Sensor Board.

Table 1. Mechanical Button Functions
Pin on ATSAMR30M	Signal Name	Pin Function
RESET	RST_BTN	Reset switch
PA28	USR_BTN	User switch