u-blox EVK-NINA-B50, User Manual

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EVK-NINA-B50 - User guide
UBX-23007761 - R02 Interfaces and peripherals Page 26 of 37
C1-Public
Conn. Pin no. Raspberry Pi pin Description NINA-B4 schematic
net name* K32W pin Alternate functions and notes
12 GPIO18 Digital I/O GPIO_1 PTA16
13 GPIO27 Digital I/O GPIO_52 PTB2
Connected to NINA through a
solder bridge. If the solder bridge
is cut this pin is left floating.
14 GND Ground GND
15 GPIO22 Digital I/O GPIO_51 PTB0 Connected to NINA through a
solder bridge. If the solder bridge
is cut this pin is left floating.
16 GPIO23 Digital I/O GPIO_50 PTB3 Connected to NINA through a
solder bridge. If the solder bridge
is cut this pin is left floating.
17 3.3 V 3.3 V supply pin 3V3_PI - Not connected by default. See
also
Powering options
18 GPIO24 Digital I/O GPIO_49 PTC0 Connected to NINA through a
solder bridge. If the solder bridge
is cut this pin is left floating.
19 GPIO10 Digital I/O GPIO_48 PTB1 Connected to NINA through a
solder bridge. If the solder bridge
is cut this pin is left floating.
20 GND Ground GND
21 GPIO09 Digital I/O GPIO_47 PTC1 Connected to NINA through a
solder bridge. If the solder bridge
is cut this pin is left floating.
22 GPIO25 Digital I/O GPIO_46 PTA17
23 GPIO11 Digital I/O GPIO_45 SWITCH_
WAKEUP_
B SWITCH_WAKEUP
24 GPIO08 Digital I/O GPIO_44 - Not connected
25 GND Ground GND
26 GPIO07 Digital I/O GPIO_43 - Not connected
27 ID_SD EEPROM config
I2C data signal GPIO_42 - Not connected
28 ID_SC
EEPROM config
I2C clock signal
GPIO_41 - Not connected
29 GPIO05 Digital I/O GPIO_40 PTC7
30 GND Ground GND
31 GPIO06 Digital I/O GPIO_39 VREFO
32 GPIO12 Digital I/O GPIO_38 XTAL_OUT
33 GPIO13 Digital I/O GPIO_37 - Not connected
34 GND Ground GND
35 GPIO19 Digital I/O GPIO_36 VOUT_SWI
TCH
36 GPIO16 Digital I/O GPIO_35 - Not connected
37 GPIO26 Digital I/O GPIO_34 - Not connected
38 GPIO20 Digital I/O GPIO_33 - Not connected
39 GND Ground GND
40 GPIO21 Digital I/O GPIO_32 PTA18
Table 14: Pinout of the Raspberry Pi compatible interface
*See Table 16