Chengdu Ebyte Electronic Technology Co., Ltd.
E108-GN02D User Manual
Copyright ©2012–2018
，
Chengdu Ebyte Electronic Technology Co., Ltd
7
power supply
VCC (3-5.5V)
Serial port
Communication
level
2.8V—3.3V
（
2.8V
）
Baud rate (bps)
9600~921600
，
default 9600
Data bit
8bit
Stop bit
1
Chapter 4 Size and pin definition
22*20*5.8mm
22mm long
20mm wide
5.8mm in height
Pin number
Name
Description
1
CE
Power enable terminal, can be pulled down to enter low power
consumption mode (default is high)
2
1PPS
1PPS output, users can set frequency, duration, etc. through commands
3
GND
Module power ground wire
4
TXD
UART output (2.8V level)
