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
GND
enter/output
Ground wire, connected to the power reference ground
2
GND
enter/output
Ground wire, connected to the power reference ground
3
VCC
enter
Module power positive reference power, voltage range
4
GND
enter/output
Ground wire, connected to the power reference ground
5
PD10
enter/output
reserved
6
PD11
enter/output
reserved
7
PD12
enter/output
reserved
8
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
9
PD14
enter
The WAKE pin is mainly used to wake up the dormant terminal. It is
high level when powered on. When the pin is pulled low externally, the
dormant terminal device will be woken up.
10
PD15
output
The AUX pin indicates the current working state of the device. When
the pin is low, it indicates that the device is busy, and when the pin is
high, it indicates that the device is idle.
11
PA0(TX)
output
Serial send port TX
12
PA1(RX)
enter
Serial receiving port RX