UM-B-114
DA14531 Development Kit Pro Hardware User Manual
User Manual
Revision 1.4
23-Apr-2020
35 of 82
© 2021 Dialog Semiconductor
5.3.8
Arduino Interface
Four female headers (0.100", through hole, socket type) must be mounted on J11, J12, J13, and J14.
Table 14: Arduino Signals
Function
The Signals
Comments
PRO-MB
DA14531 PRO-DB
Available on Headers
J2
FCGQFN24
WLCSP17
SCK_1
J13:4
P0_0
P0_4
P0_4
Multiplexed with SPI, UART, and
other Arduino Interface signals.
A2
J13:3
P0_3
P0_1
P0_1
SDA_1
J12:1
P0_4
P0_0
P0_0
SCL_1
J12:2
P0_7
P0_4
P0_4
PWM_1
J12:3
P1_0
P0_9
Multiplexed with User LED.
Can remove J8:3-4.
RX_1
J13:6
P1_1
P0_10
Multiplexed with SWDIO of
DA14531 FCGQFN24 PRO-DB. It
must be enabled in software.
AN_2
J12:9
P2_1
P0_1
P0_1
Multiplexed with SPI, UART, and
other Arduino Interface signals.
SCL_2
J12:10
P2_2
P0_2
P0_2
TX_2
J12:4
P2_5
P0_5
P0_5
Used for SWDIO of WLCSP17.
Used for single-wire UART of
FCGQFN24.
RX_2
J12:5
P2_6
P0_6
CS_2
J12:6
P2_7
P0_7
SDA_2
J14:1
P2_8
P0_8
BRSTn
J11:3
P3_0
It is not enabled.
INT_2
J14-2
P3_1
P0_11
V3
J11:4
V
BAT_HIGH
The same voltage rail applied to
V
BAT_HIGH
pin of DA14531 SoC.
V5
J11:5
VBUS_HUB voltage provided from
USB port.