User Manual

Chengdu Ebyte Electronic Technology Co., Ltd. E180-ZG120A/B Product Specification
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co., Ltd.
pin number
pin name
Pin Orientation
pin usage
1
ANT
enter/output
Antenna external stamp hole
2
GND
-
Ground wire, connected to the power reference ground
3
PD13
enter
NET key pin, this pin is continuously pulled down for 20ms~200ms, it
can be controlled by network, please refer to Section 4.4.2 for details
4
PD14
enter
GPIO enter/output ports are not used
5
PA0(TX)
output
Serial send port TX
6
PA1(RX)
enter
Serial receiving port RX
7
NC
-
-
8
NC
-
-
9
PD15
-
reserved port
10
PB11
enter
The UART_BAUD_RESET pin is used to reset the baud rate of the
device. It defaults to a high level when powered on. In any mode, if
this pin is pulled down for more than 5000ms, the serial port
parameters of the module will be restored to the default 115200bps.
11
PB12
output
GPIO enter/output ports are not used
12
PB13(PWM2)
enter/output
PWM output port 2 (corresponding to ZCL application port 4)
13
VCC
enter
Module power
14
GND
enter
power reference ground