u-blox MIKROE-2471, Руководство пользователя

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NINA-B1 series - System Integration Manual
UBX-15026175 - R06 System description
Page 9 of 48
Function Pin Name Pin No.
nR52
pin
Type Description u-blox connectivity software
Power
VCC
10 PWR Module supply input
1.7-3.6V range
VCC_IO
9 PWR IO Voltage supply input
Must be connected to VCC on NINA-B1
GND 6, 12, 14,
26, 30 GND Module ground
EGP
- GND The exposed pads in the center of
the module should be connected
to the GND
GPIO
GPIO_1 1 P0.08 I/O General purpose I/O RED:
System status signal
GPIO_2
2 P0.11 I/O General purpose I/O
GPIO_3 3 P0.12 I/O General purpose I/O
GPIO_4 4 P0.13 I/O General purpose I/O
GPIO_5
5 P0.14 I/O General purpose I/O
GPIO_7 7
P0.16
I/O
General purpose I/O
GREEN/SWITCH_1:
This signal is multiplexed:
GREEN: System status signal.
SWITCH_1:
•
Grounding SWITCH_1 and
SWITCH_2 during a reset will
make the module enter the
bootloader.
•
Grounding SWITCH_1 and
SWITCH_2 during a reset and
holding it low for 10s will
make the module restore all
factory settings.
GPIO_16 16 P0.28 I/O General purpose I/O
Pin is analog capable UART_DTR:
Can be used to indicate system
mode
GPIO_17
17 P0.29 I/O General purpose I/O
Pin is analog capable UART_DSR:
Can be used to set system mode
GPIO_18 18 P0.30 I/O General purpose I/O
Pin is analog capable SWITCH_2:
•
Grounding SWITCH_1 and
SWITCH_2 during reset will
make the module enter the
bootloader.
•
Grounding SWITCH_1 and
SWITCH_2 during a reset and
holding it low for 10s will
make the module restore all
factory settings.
•
Grounding SWITCH_2 during
reset will reset the UART serial
settings.
•
Can be use as external connect
or to enable parable mode.
See
u-blox Short Range
Modules AT Commands
Manual [4]
for more details.
GPIO_20
20
P0.31 I/O General purpose I/O UART_RTS:
UART request to send control signal
GPIO_21 21 P0.07 I/O General purpose I/O UART_CTS:
UART clear to send control signal
GPIO_22 22 P0.06 I/O General purpose I/O UART_TXD
UART data output