Chengdu Ebyte Electronic Technology Co.,Ltd.
E180-Z8910SP User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
11
10
PIO3(BAU
D_R)
Input
The UART_BAUD_RESET pin is used to reset the baud rate of the device. It
defaults to a high level after power-on. In any mode, the module serial port
parameters will be restored to the default 115200 if the pin is pulled down for
more than 1000ms.
11
PIO6(ACK)
Output
The ACK pin is used to indicate the status of the last user data transmission.
The pin is pulled low before the transmission is started, and the pin is pulled
high after the transmission is successful.
12
PIO7(GPIO
0)
Input/Output
GPIO input/output port 0
13
VCC
-
Module power supply positive reference voltage, voltage range
14
GND
-
Ground wire, connected to the power reference ground
15
PIO10(GPI
O1)
Input/Output
GPIO input/output port 1
16
PIO4
-
Reserved, directly suspended
17
PIO5
-
(PIO5 pulled low, the module is in download mode; PIO5 pulled high, the
module is in running mode)
18
PIO16(AUX
)
Output
The AUX pin indicates the current working status of the device. When the pin
is low, it indicates that the device is busy, and the high level indicates that the
device is idle.
19
PIO11(GPIO
2)
-
Reserved, directly suspended
20
NC
-
Reserved, directly suspended
21
PIO14(ADC
1)
Input
ADC detection port 1
22
PIO15(ADC
2)
Input
ADC detection port 2
23
NC
-
Reserved, directly suspended
24
NC
-
Reserved, directly suspended
25
SWCLK
-
Reserved, directly suspended
26
SWDIO
-
Reserved
27
PIO17(PW
M3)
Output
PWM output port 3
28
PIO18(PW
M2)
Output
PWM output port 2
29
PIO19(PW
M1)
Output
PWM output port 1
30
PIO21(LIN
K)
Output
The LINK pin indicates the current network status of the module, and the
output high-level meter has been added to the network
31
PIO20(PW
M0)
Output
PWM output port 0
32
NC
--
Reserved, directly suspended
33
NC
-
Reserved, directly suspended
34
NC
-
Reserved, directly suspended
