Chengdu Ebyte Electronic Technology Co.,Ltd.
E32-900MBL-01 User Manua
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Copyright ©2012–2019
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Chengdu Ebyte Electronic Technology Co.,Ltd.
4
1.2 Size, interface description
No.
Definition
Function Description
1
3.3V
3.3V Electric pin
2
3.3V
3.3V Electric pin
3
GND
Floor reference ground
4
GND
Floor reference ground
5
3.3V
3.3V Electric pin
6
GND
Floor reference ground
7
REST
MCUExternal reset pin
8
SWIM
SWIM pin of MCU
9
3.3V
3.3V Electric pin
10
VCC
Module power supply pin, need to be
short-circuited with pin 9 to supply power to
the module
11
PC6
MCU ordinary IO
12
PC5
MCU ordinary IO
13
PB3
MCU ordinary IO
14
PB2
MCU ordinary IO
15
PB1
MCU ordinary IO
16
PB0
MCU ordinary IO
17
M1
Module mode switch pin (see module product
manual for details)
18
M0
Module mode switch pin (see module product
manual for details)