Chengdu Ebyte Electronic Technology Co.,Ltd.
E103-W03 User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
9
1
、
8
、
9
、
11
、
12
、
13
、
16
、
17
、
28
、
29
、
44
GND
power ground
2
GPIO26
IO
General IO port
3
GPIO27
IO
General IO port
4
RST
I
Module reset pin, low level reset, low level duration is greater
than or equal to 2ms.
5
SOP2
I
Burn emulation mode selection. The SOP2 pin has a built-in 2.4K
pull-down resistor; when using it, an external pull-up resistor
100R is required to pull the pin level high. Normal work is low.
6
SOP1
I
Burn emulation mode selection. The SOP1 pin has a built-in
100K pull-down resistor; when using, an external pull-up resistor
10K is required to pull the pin level high. Normal work is high.
7
SOP0
I
Burn emulation mode selection. The SOP0 pin has a built-in
100K pull-down resistor; when using it, an external pull-up
resistor of 10K is required to pull the pin level high. Normal work
is low.
10
VCC
Equipment power supply VDC: 2.4V~3.6V (above 300mA)
14
GPIO31
IO
General IO port
15
GPIO0
IO
General IO port
18
GPIO30
IO
General IO port
19
GPIO1
O
UART serial port output pin, support AT command
20
GPIO2
I
UART serial port output pin, support AT command
21
GPIO3
IO
General IO port
22
GPIO4
IO
General IO port
23
GPIO5
IO
General IO port
24
GPIO6
IO
General IO port
25
GPIO7
IO
General IO port
26
GPIO8
O
Abnormal indicator INDICATE, abnormal output is low, normal
output is high.
27
GPIO9
O
Wifi connection status indicator, connected output low,
unconnected output high
30
GPIO10
O
Network connection status indicator, connected output low,
unconnected output high
31
GPIO11
O
Smartconfig status indicator, low when entering the state, high
when not entering the state
32
GPIO12
I
Factory reset pin, active low. Stay low for 3 seconds or more at
power-up. No need to reboot again.
33
GPIO13
I
WAKEUP wakeup pin
34
GPIO14
IO
General IO port
35
GPIO15
IO
General IO port
36
GPIO16
IO
General IO port
