Users Manual
RAK
4630
6
2.5
Pin Description
The following tables show the pin definition and description of RAK3400.
Table 2: Definition of I/O Parameters
T
y
p
e
D
e
s
c
r
i
p
t
i
on
PI
Power Input
PO
Power Output
DI Digital Input
DO Digital Output
IO
Bidirectional
AI
Analog Input
AO
Analog Output
Table 3: Pin Description
P
o
w
e
r
S
upp
l
y
Pin Name
Pin No.
Type
Description
Comment
VDD_NRF
43
PI
Power
supply
VBAT_NRF
44
PI
High
Power
supply
GND
14,16,
22,35,
36,38,
42
Ground
I
2
C
I
n
t
e
r
f
a
c
e
Pin Name
Pin No.
Type
Description
Comment
I2C1_SDA
4
IO
I2C serial data
P0.13
I2C1_SCL
5
OD
I2C serial clock
P0.14
I2C2_SDA
23
IO
I2C serial data
P0.24
I2C2_SCL
24
OD
I2C serial clock
P0.25
U
S
B
I
n
t
e
r
f
a
c
e
Pin Name
Pin No.
Type
Description
Comment
VBUS
1
PI
USB power
5V input for 3.3V regulator
USB_DP
3
IO
USB differential data(+)
USB_DM
2
IO
USB differential data(-)
U
AR
T
I
n
t
e
r
f
a
c
e
Pin Name
Pin No.
Type
Description
Comment
UART1_TX
10
DO
UART1 transmit
P0.20
UART1_RX
9
DI
UART1 receive
P0.19
UART1_DE
11
DI
UART1 detect
P0.21
UART2_TX
7
DO
UART2 transmit
P0.16
UART2_RX
6
DI
UART2 receive
P0.15
UART2_DE
8
DI
UART2 detect
P0.17
Quad SPI Interface
Pin Name
Pin No.
Type
Description
Comment
SPI_CLK
29
DO
SPI clock
P0.03
SPI_CS
34
DO
SPI chip select
P0.26
SPI_DIO0
33
IO
SPI data input/output 0
P0.30
SPI_DIO1
32
IO
SPI data input/output 1
P0.29
SPI_DIO2
31
IO
SPI data input/output 2
P0.28
SPI_DIO3
30
IO
SPI data input/output 3
P0.02
R
AK2011