User's Manual

EH-MC30
Ehong
®
Professional Bluetooth Solutions Provider page 7 of 17
5. Pinout and Terminal Description
5.1 Pin Configuration
Figure 1： Pinout of EH-MC30
Symbol
Pin
PAD Type
Description
GND
1
Ground
Ground
GND
2
Ground
Ground
GND
3
Ground
Ground
GND
4
Ground
Ground
GND
5
Ground
Ground
GND
6
Ground
Ground
GND
7
Ground
Ground
VBAT
8
Power supply
Power supply 3.3V
SWDCLK
9
Digital input
Hardware debug and flash
programming I/O.
SWDIO
10
Digital IO
System reset (active low).
Hardware debug and flash
programming I/O.
P0.21
11
Digital IO
General purpose I/O pin