Ebyte E108-GN Series, Руководство пользователя, Страница: 10 / 33

Chengdu Ebyte Electronic Technology Co.,Ltd.
E108-GN User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
2 12
21 RXD UART input (AT port, 28V level)
22 VBKP
RTC power input The RTC power supply must be powered, the module
23 VCC
Module power
The module startup voltage needs to provide a stable voltage of 4.2V. If
the startup voltage is lower than this value, it may cause no printout of
the serial port. After startup, it can be reduced to normal 3.3V voltage
operation.
24 GND
Module ground
3.2 E108-GN02 pins definition
No. Name Direction Function
1 GND
Module power
ground wire
2 TXD
Output UART output (2.8V level)
3 RXD
Enter UART input (2.8V level)
4 1PPS
Second pulse
output
User can set frequency, duration, etc. by command
5
FORCE_
ON
Sleep wake-up
pin
When the module enters the ultra-low power consumption, pull this pin
high to exit the ultra-low power consumption mode (this pin is powered
6 VBKP
RTC power input
The voltage is 11V, if the control pin level is not 11V, it needs to divide
the voltage)
7 NC
Remained pins
8 VCC
Module power (2.8V-4.2V
）
9 RSTN
Reset pin Pull high by default, pull low to reset;
10 GND
Module ground
11 RF IN
RF input
12 GND
Module ground
13 ANTON
External External LNA or active antenna power control pin 28V level:
14 VCCRF
RF power output
Power supply for external active antenna (this VCC RF output voltage is
equal to VCC)
15 NC
Remained pins
16 NC
Remained pins
17 NC
Remained pins
18 NC
Remained pins