UBX-22039292 - R01
Module configuration
Page 17 of 28
C1-Public
NINA-W106 also connects to LARA-R6 through a 4- to 8-pin UART and additional GPIOs for
monitoring status information. Moreover, it can be connected to a microSD card using single SPI
communication through the microSD card socket. See also
Figure 12: microSD card socket signals
4.1.2
GPIO pin-out
describes the function of the GPIO pins used in the NINA-W106 module. Some pins are
accessible from the J2, J5, J10 pin headers. Others are available from the three-pin header (J4) that
exposes the I2C bus (available on the bottom side of the board), the QWIIC
®
connector (J6), and the
10-
pin 0.05” pitch JTAG header
(J11) located on the bottom side of the connector.
NINA-W106
pin
ESP32 GPIO Signal function
Available from
Notes
1
GPIO23
uSD_SDI / COPI
J10-2
SPI COPI connected to microSD.
2
GPI34
LTE_RXO
J5-9
UART to LTE. See also
4
GPI36
LTE_CTS
J5-7
UART to LTE. See also
5
GPIO33
LTE_RESET
J5-10
Resets the LTE modem, active LOW.
See also
7
GPIO32
uSD_CS
J10-1
SPI chip select (used by the microSD)
8
GPIO21
I2C_SDA
J4-2, J6-3
(QWIIC connector)
I2C SDA signal. NINA-W106 is the I2C controller that
connects to GNSS and L-band
11
GPI37
LTE_ON
-
Input to NINA-W106. Signals that the LTE modem
has powered on. Also connected to LTE status LED
“On”
. See also
15
GPI38
uSD_DET
-
Input to NINA-W106. Signals that the microSD card
is inserted.
16
GPIO25
LTE_TXI
J5-8
UART to LTE. See also
17
GPIO26
LTE_PWR_ON
J5-11
Command to LTE to power on, active HIGH. Different
pulse duration for power on/off.
See also
18
GPIO27
LTE_RTS
J5-6
UART to LTE. See also
19
RESET_N
RESET
J11-10
(unpopulated
JTAG, bottom side)
NINA-W106 Reset
20
GPIO22
I2C_SCL
J4-3, J6-4
(Q
WIIC
connector)
I2C SCL signal. NINA-W106 is the I2C controller,
connects to GNSS and L-band
21
GPIO19
uSD_SDO / CIPO J10-4
SPI CIPO connected to microSD
