Chengdu Ebyte Electronic Technology Co., Ltd.
E220P-400T22S User Manual
Copyright ©2012–2020,
Chengdu Ebyte Electronic Technology Co., Ltd.
6
11
GND
-
Ground
12
NC
-
Empty Pin
13
GND
-
Ground
14
NC
-
Empty Pin
15
NC
-
Empty Pin
16
NC
-
Empty Pin
17
NC
-
Empty Pin
18
NC
-
Empty Pin
19
GND
-
Ground
20
GND
-
Ground
21
ANT
-
Antenna
22
GND
-
Ground
4. Connect to MCU
No.
Brief description of the connection between the module and the MCU (The picture above takes STM8L MCU
as an example)
1
The wireless serial port module is TTL level, please connect with TTL level MCU.
2
For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.
