EVK-NINA-B3 - User Guide
UBX-17056481 - R03
Product description
Page 12 of 31
Connector
annotation
Add jumper
to pins
Description
J7
1,2
Connects the 3V3_PI net to the regulated 3.3 V supply.
7, 8
Selects the board regulated 3.3 V net as a source for the VDD_NINA net.
9, 10
(Optional) Powers up the Interface MCU, USB hub, and UART to USB converter with 3.3 V.
J22
1, 3
Powers up the NINA module. The NINA VCC and VCC_IO pins are connected to the selected
source for the VDD_NINA net.
2, 4
(Optional) Powers up the peripherals directly connected to NINA such as LEDs and external
memory with the NINA supply voltage.
Table 7: Jumper configuration when connected to a Raspberry Pi HAT
1.7
Arduino interface
The EVK-NINA-B3 includes a set of pin headers and mounting holes that are compatible with certain
Arduino or Arduino inspired shields. Figure 11 shows the layout of the Arduino interface and Table 8
explains the pinout in more detail. Section 1.7.1 describes what specifications must be met for a
shield to be compatible for use with the EVK-NINA-B3.
Figure 11: Pin headers that are compatible with some Arduino shields
