Chengdu Ebyte Electronic Technology Co.,Ltd.
E78-400M22S1C User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
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resulting in a difference in emission current and reception current of different modules;
Reducing the transmit power can reduce power consumption to some extent, but reducing the transmit power
emissions for a number of reasons reduces the efficiency of the internal PA.
3 Size and pin definition
Pin No.
Item
Direction
Description
1
GND
-
Ground wire, connected to the power reference ground
2
GND
-
Ground wire, connected to the power reference ground
3
GND
-
Ground wire, connected to the power reference ground
4
NC
-
Reserved
5
GPIO01
Input/Output
MCU GPIO
6
GPIO00
Input/Output
MCU GPIO
7
GPIO03
Input/Output
MCU GPIO
8
GPIO02
Input/Output
MCU GPIO
9
GPIO06
Input/Output
MCU GPIO
10
GPIO07
Input/Output
MCU GPIO
