ST UM2727, Getting Started, Page: 5 / 15

1.2 Hardware requirements
The X-NUCLEO-OUT03A1 expansion board is designed to be used with the NUCLEO-F401RE or NUCLEO-
G431RB STM32 Nucleo development boards.
To function correctly, the X-NUCLEO-OUT03A1 must be plugged onto the matching Arduino UNO R3 connector
pins on the STM32 Nucleo board as shown below.
Figure 4. X-NUCLEO-OUT03A1 and STM32 Nucleo stack
1.3 System requirements
To use the STM32 Nucleo development boards with the X-NUCLEO-OUT03A1 expansion board, you need:
• a Windows PC/laptop (Windows 7 or above)
• a type A to mini-B USB cable to connect the STM32 Nucleo board to the PC when using a NUCLEO-
F401RE development board
• a type A to micro-B USB cable to connect the STM32 Nucleo board to the PC when using a NUCLEO-
G431RB development board
• the X-CUBE-OUT3 firmware and software package installed on your PC/laptop
1.4 Board setup
Step 1. Connect the micro-USB or mini/USB cable to your PC to use the X-NUCLEO-OUT03A1 with NUCLEO-
F401RE or NUCLEO-G431RB development board
UM2727
Hardware requirements
UM2727 - Rev 1
page 5/15