Chengdu Ebyte Electronic Technology Co., Ltd.
E22-230TXXS User manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
8
3 Size and pin definition
3.1 E22-230T22S pins
No.
Name
Direction
Function
1
NC
N/A
2
GND
-
Module ground
3
NC
-
N/A
4
NC
-
N/A
5
NC
-
N/A
6
NC
-
N/A
7
NC
-
N/A
8
GND
-
Module ground
11
GND
-
Module ground
12
ANT
-
Antenna(high frequency signal output
，
50 ohm
）
13
GND
-
Module ground
14
GND
-
Module ground
15
GND
-
Module ground
16
GND
-
Module ground
19
GND
-
Module ground
20
M0
Input
（
weak
Work with M1 to decide 4 working modes of module (not suspended, if not used, could
