User's Manual

UM2819
UM2819 - Rev 1
page 20/37
Push-buttons
7.6 Push-buttons
7.6.1 Description
NUCLEO-WB55RG provides two types of buttons:
• B1 USER1 pushbutton
• B2 USER2 pushbutton
• B3 USER3 pushbutton
• B4 reset pushbutton to reset the NUCLEO-WB55RG board.
Figure 13. Push-buttons location
ST Restricted
B1, user Pushbutton
B2, user Pushbutton
B3, user Pushbutton
B4, reset Pushbutton
7.6.2 Reset push-button
B4 is dedicated to the hardware reset of the NUCLEO-WB55RG board.
7.6.3 User push-buttons
There are three push‑buttons available for the user application. They are connected to PC4, PD0, and PD1. It is
possible to use them for GPIO reading or to wake up the device (only B1).