Data Sheet

MK14 Bluetooth Module
Datasheet
www.mokoblue.com
9
4. Pin Assignment
MK14 module pin diagram(Rear View)
Pin No.
Name
Type
Description
1
GND
Power
Ground
2
DIO
Digital I/O
Serial wire debug I/O for debug and
programming
3
CLK
Digital input
Serial wire debug clock input for debug and
programming
4
P20
Digital I/O
General purpose I/O
5
P21
Digital I/O
General purpose I/O
RESET
Configurable as pin reset
6
P18
Digital I/O
General purpose I/O
7
P16
Digital I/O
General purpose I/O
8
P14
Digital I/O
General purpose I/O
9
P12
Digital I/O
General purpose I/O
10
P05
Digital I/O
General purpose I/O
AIN3
Analog input
SAADC input
11
P04
Digital I/O
General purpose I/O
AIN2
Analog input
SAADC input
12
VCC
Power
Power Supply: 1.7V-3.6V
13
GND
Power
Ground
14
GND
Power
Ground
15
GND
Power
Ground
16
GND
Power
Ground
Note： Please refer to Nordic nRF52805 Product Specifications for detailed descriptions and
features supported about the Pin assignments.