Specifications

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The antenna can't be near around metal parts and prevent material existence of electromagnetic
radiation , Can affect the manipulation of the distance.
7-9. Assembly recommendation (2): Signal trace and power supply trace, don't cross layout, as
show in below Fig.To avoid crosstalk, affect the receiving sensitivity.Assembly recommendation
1:Underneath the module antenna and RF circuit on themain board PCB copper need to
clearance, and place close to the main board edge, as show in below Fig.
8. Pinout and GPIO function Description
Pin
No.
Name Type Function Description
1 GND Power GND Ground
2 DIO_0 Digital I/O GPIO, Sensor Controller (I:4mA max)
3 DIO_1 Digital I/O GPIO, Sensor Controller (I:4mA max)
4 DIO_2 Digital I/O
UART RX;
GPIO, Sensor Controller (I:4mA max)
5 DIO_3 Digital I/O
UART TX;
GPIO, Sensor Controller (I:4mA max)
6 DIO_4 Digital I/O
WAKE UP; Don't floating
GPIO, Sensor Controller (I:4mA max)
7 DIO_5 Digital I/O
GPIO, Sensor Controller, high-drive capability (8mA
max).
8 DIO_6 Digital I/O
GPIO, Sensor Controller, high-drive capability (8mA
max).
9 DIO_7 Digital I/O
GPIO, Sensor Controller, high-drive capability (8mA
max).
10 DIO_8 Digital I/O GPIO (I: 4mA max)
11 DIO_9 Digital I/O GPIO (I: 4mA max)
12 DIO_10 Digital I/O GPIO (I: 4mA max)
13 DIO_11 Digital I/O GPIO (I: 4mA max)
14 GND Power GND Ground
The module
assemble
in
the
motherboard
,
must
pay
attention to:
Around the antenna and all layer’s copper must
be clear, Module antenna should be on the edge,
And there are no metal or obstruct
electromagnetic radiation material to surround
antenna
area.