Ebyte E103-W02 User manual

E103-W02 User Manual
Serial wifi SMD small volume PCB antenna MQTT

Content
DISCLAIMER ......................................................................................................................................................................................错误！未定义书签。
1. MODULE INTRODUCTION .............................................................................................................................................................................................4
1.1 FEATURES INTRODUCTION ..................................................................................................................................................................4
1.2 BASIC USAGE ......................................................................................................................................................................................... 5
1.3 ELECTRICAL PARAMETERS ..................................................................................................................................................................5
1.4 ELECTRICAL FEATURES ....................................................................................................................................................................... 6
2. BRIEF DESCRIPTION OF FUNCTIONS......................................................................................................................................................................7
2.1 PIN DEFINITION .....................................................................................................................................................................................7
2.2 APPLICATION SCHEMATICS ..................................................................................................................................................................9
3. QUICK START........................................................................................................................................................................................................................9
3.1 TRADITIONAL MODE (NORMAL) ..................................................................................................................................................10
3.1.1 Link Preparation.........................................................................................................................................................................10
3.1.2 Module as AP to establish TCP SERVER wireless connection with PC..................................................................... 11
3.1.3 Module as AP to establish UDP SERVER wireless connection with PC .....................................................................12
3.1.4 Module as STA (Station) to connect to other WiFi hotspots ...........................................................................................15
3.1.5 Web Configuration .....................................................................................................................................................................21
3.1.6 Remote AT Commands .............................................................................................................................................................22
3.2 MQTT CLIENT MODE (MQTT)..................................................................................................................................................... 23
3.2.1 Setup process.............................................................................................................................................................................. 23
3.2.2 Device Access Demonstration ................................................................................................................................................ 24
3.2.3MQTT Notes................................................................................................................................................................................ 27
3.3 HTTP CLIENT MODE (HTTP)......................................................................................................................................................... 27
3.3.1 Setup Process .............................................................................................................................................................................. 27
3.3.2 Use of theOST request method ...............................................................................................................................................27
3.3.3 Use of 3GET request method ..................................................................................................................................................29
3.4 MULTI-LINK MODE FOR SERVERS (MULTIS).............................................................................................................................. 30
3.5 MULTI-LINK MODE FOR CLIENTS (MULTIC) ...............................................................................................................................32
3.6 MODIFY SERIAL PORT BAUD RATE ................................................................................................................................................ 34
3.7 LOW POWER CONFIGURATION DESCRIPTION ............................................................................................................................ 34
4. NETWORK DESCRIPTION............................................................................................................................................................................................35
4.1 NETWORKING ROLES ........................................................................................................................................................................ 35
4.2 NETWORKING MODEL .......................................................................................................................................................................36
5. AT COMMAND ....................................................................................................................................................................................................................37
6. ANTENNA SELECTION .................................................................................................................................................................................................. 53
7. CUSTOMIZED COOPERATION................................................................................................................................................................................... 53
8. WELDING WORK INSTRUCTION ............................................................................................................................................................................. 53
8.1 REFLOW TEMPERATURE .................................................................................................................................................................... 53
8.2 REFLOW PROFILE ............................................................................................................................................................................... 54
9. REVISION HISTORY........................................................................................................................................................................................................ 54
ABOUT US.................................................................................................................................................................................................................................55

Disclaimer
The information in this document, including the URL address for reference, is subject to
change without notice. Documents are provided "as is" without any warranty, including any
warranty of merchantability, fitness for a particular purpose or non-infringement, and any
warranty referred elsewhere of any proposal, specification or sample。This document does
not bear any responsibility, including the responsibility for any patent infringement caused
by the use of the information in this document.This document does not grant any license for
the use of intellectual property by estoppel or otherwise, whether express or implied.
The data in this paper are all from Ebyte laboratory, and the actual results may be
slightly different.
It is hereby declared that all trade names, trademarks and registered trademarks
mentioned here are the property of their respective owners.
The final interpretation right belongs to Chengdu Ebyte Electronic Technology Co., Ltd.
Notice:
The contents of this manual may be changed due to product version upgrade or other reasons. Ebyte
Electronic Technology Co., Ltd. reserves the right to modify the contents of this manual without any
notice or prompt. This manual is only used as a guide. Chengdu Ebyte Electronic Technology Co., Ltd.
will try its best to provide accurate information in this manual. However, Chengdu Ebyte Electronic
Technology Co., Ltd. does not guarantee that the contents of this manual are completely correct, and all
statements, information and suggestions in this manual do not constitute any express or implied
warranty.

1. Module Introduction
1.1 Features Introduction
The E103-W02 is an ultra-low power serial to Wi-Fi module in a SMD small
form factor package with PCB antenna, operating in the 2.4~2.484GHz band.
The module can use serial port to send and receive data, lowering the threshold
of wireless applications.
E103-W02 module is based on TI's CC3200 chip. The module integrates
the pass-through function, ready to use, supports serial AT command set users
can use the network access function through the serial port, widely used in wearable devices, home automation, home
security, personal health care, smart home appliances, accessories and remote control, automotive, lighting, industrial
Internet and other fields.
The E103-W02 module supports standard IEEE802.11b/g/n protocol and complete
It supports STA/AP network roles, multiple network modes, SmartConfig, serial port pass-through, power-on
pass-through, etc. After simple configuration, the network access function can be realized very conveniently, minimizing
the developer's work and project development time.
No.
Features
Description
1
Ultra low power
consumption
4 power consumption modes are freely configurable, and the
standby power consumption is less than 5uA in the lowest power
consumption mode.
2
High-speed
transmissions
The module supports 3Mbit high-speed transmission.
3
Web
configuration
support
The module can be accessed via web page to read or configure the
module parameters quickly.
4
Power-on
pass-through
The module automatically connects to the WIFI network at power-on,
and then connects to the target device through the protocol according
to different network modes.
5
Automatic
reconnection in
case of network
disconnection
In STATION mode, the module automatically reconnects to the
target after the network connection is disconnected and restored.
6
Fast network
matching
Support Airkiss/SmartConfig function for fast network pairing of
the module.
7
Remote AT
command
Support remote AT command, you can remotely use AT command
to configure the module
8
Heartbeat
package
When the module is a TCP client, it supports heartbeat Support serial
heartbeat packets
9
Registration
package
When the module is a TCP client, it supports the connection
registration mechanism, and the user can customize the content of the
registration packet
10
Cloud platform
transmissions
The module can be configured with the relevant parameters to
achieve multi-device cloud platform transmissions.
11
Multi-network
working mode
Traditional TCP/UDP mode, multi-link TCP/UDP mode, MQTT client
mode, HTTPclient mode

12
Pin status
indication
According to different working states, with different pin level
prompt
For more features, please see the
related application documentation
1.2 Basic usage
No.
Usage
Description
0
Module to
Module
Communication
Module No. 1 is set to AP mode and establishes a TCP or UDP server,
Module No. 2 is set to STATION mode and connects to AP No. 1, and
communicates with Module No. 1 through TCP or UDP Client mode.
Communication with module 1 through TCP or UDP Client
1
Module to
Server
Commun
ication
The Wi-Fi module is connected to the network through the wireless
router and communicates with the server on the network (LAN or
Internet) via TCP Client or UDP.
If you need to connect to an Internet server, you need to configure the
router with the appropriate port mapping.
2
Module-to-Cl
ient
Commun
ication
The Wi-Fi module connects to the network through the wireless router
and establishes a TCP or UDP Server to listen for connection signals.
The Client communicates with it through the Connection Module
Server.
For more features, please see the related application documentation
1.3 Electrical parameters
No.
Paramet
er Name
Parameter Value
Comments
1
RF Chips
CC3200
TI
2
Module
Size
27 * 19 * 2.7mm
PCB antenna included
3
Average
Weight
2.2g
PCB Antenna Included
4
PCB
Process
4 layers
Impedance Debugging
5
Operatin
g
Frequenc
y Band
2.4~2.484 GHz
6
Producti
on
Process
Lead-free process,
machine paste
Wireless products must be machine-mounted to ensure
batch consistency and reliability
7
Interface
Method
1.27mm
SMD
8
Power
supply
voltage
2.4 ~ 3.6V DC
Note: Voltage higher than 3.6V will cause permanent
damage to the module
9
Commun
ication
level
Maximum 3.6
It is recommended that the difference with the supply
voltage is less than 0.3V to reduce power consumption
10
Measured
distance
About 150m
Clear and open, maximum power, height 2m
About 500m
Clear and open, maximum power, height 2m
11
Transmit
ting
power
20dBm
About 100mW
12
AT
Support
Built-in intelligent
processing
Configuration parameters can be set or read via AT
commands

13
Wi-Fi
version
Version
802.11 b/g/n
14
Commun
ication
Interface
UART Serial port
15
Antenna
Type
PCB On Board
Antenna/IPX Block
Sub
50Ω characteristic impedance, can be changed by
yourself
16
Operatin
g
Temperat
ure
-40 ~ +85℃
Industrial grade (chip range, please modify according
to crystal parameters)
17
Working
Humidit
y
10% ~ 90%
Relative humidity, non-condensing
18
Storage
temperat
ure
-40 ~ +85℃
Industrial grade
1.4 Electrical Features
Parameter
Condition
Min
Typical
Max
Unit
Storage temperature
range
-40
room
temper
ature
85
℃
Operating Voltage
2.4
3.3
3.6
V
At will
IO
VIL/VI
H
-
0.5/0.65VD
D
-
0.35VDD/
VDD+0.5
V
VOL/V
OH
N/2.4
-
0.4/N
IMAX
-
-
3.5
mA

2. Brief description of functions
2.1 Pin Definition
No.
Pin
Definition
I/O
Functions and instructions for use
1、8、9、
11、12、
13、16、
17、28、
29、44
GND
Power ground
2
GPIO26
IO
General purpose IO port
3
GPIO27
IO
General purpose IO port
4
RST
I
Module reset pin, low reset
5
SOP2
I
Burn emulation mode selection
6
SOP1
I
Burn-in emulation mode selection
7
SOP0
I
Burn-in emulation mode selection
10
VCC
Device power supply VDC:2.4V~3.6V (300mA or more)
14
GPIO31
IO
General IO port
15
GPIO0
IO
General IO port

18
GPIO30
IO
General IO port
19
GPIO1
O
UART serial output pins with AT command support
20
GPIO2
I
UART serial input pins, AT command support
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
IO
General IO port
27
GPIO9
O
Wifi connection status indicator, connected output low, not
connected output high
30
GPIO10
O
Network connection status indicator, connected output low,
unconnected output high
31
GPIO11
O
Smartconfig status indicator, low when in status, low when
not in status High
32
GPIO12
I
Restore factory settings pin, set to low at startup, after the
status indicator flashes three times alternately, the factory
settings will be restored (1 to restore factory settings, you
need to press the reset button)
33
GPIO13
IO
General IO port
34
GPIO14
IO
General IO port
35
GPIO15
IO
General IO port
36
GPIO16
IO
General IO port
37
GPIO17
IO
General IO port
38
GPIO22
IO
General IO port
39
GPIO28
IO
General IO port
40
TDI
I
JTAG Simulation foot
41
TDO
O
JTAG Simulation foot
42
TCK
I
JTAG Simulation foot
43
TMS
IO
JTAG Simulation foot

2.2 Application schematics
Note: The power supply must be guaranteed at 2.4V~3.6V. To ensure that the module can work stably, it is
recommended to choose an LDO with a current greater than 500mA externally.
3. Quick start
The E103-W02 module has the following 5 modes.
Mode
Description
NORMAL
In this mode, there is no difference with V2.0 version, that is, it supports 1-way TCP
SERVER or 1-way TCP Client or 1-way UDP, and also supports remoteAT command
function.
MQTT
In this mode, the generic MQTT client function is supported, and it supports 1-way
subscribe Topic and 1-way report Topic at the same time. Reporting Topic.
HTTP
In this mode, generic HTTP client is supported, supporting POST and
GET request methods.
MULTIS
Inthismode,multipleTCPlinks aresupported,and themoduleasTCPSERVERcanallow4
TCPclientaccesses.
MULTIC
In this mode, multiple TCP/UDP links are supported, and the module, as a TCP/UDP
client, can access two servers at the same time. The module as a TCP/UDP client can
access two servers at the same time.
The E103-W02 module is easy to use. In order to let the user get familiar with the module quickly, we will guide the
user to use the module quickly for different modes, and guide the user to configure and communicate in various modes
with simple settings.
The test process uses the AT command, and we have developed a web page HTTP for users to quickly configure in order
to make a quick connection. This section of the test is operated by using the serial debugging assistant, and the module
will display back the current command issued, so that the user can quickly understand the usage of the AT command.

(Note: all AT instructions need to be followed by a line break, except for the "++++" instruction, i.e., only the "++++"
instruction does not need to be followed by a line break)
In addition, users can use an external microcontroller (MCU) to communicate directly with the module UART for AT
command without using the backplane, enabling secondary development.
Hardware to be used.
1
Model E103-W02 Wi-Fi Module 1 pc
2
Model E103-W02 Wi-Fi module test base 1 pc
3
1 PC with Wi-Fi function
4
Router 1 (can be replaced by Wi-Fi hotspot for cell phone)
Software that will be used (all can be downloaded from the official website)
1
Serial port debugging assistant AccessPort/XCOM
2
TCP&UDP test tool
3
SmartConfig (one-click configuration) mobile app "Wi-Fi Starter"
3.1 Traditional mode (NORMAL)
3.1.1 Link Preparation
First of all, users need to know that the module is restored to factory settings or default state network role as AP,
network mode as NORMAL mode, first, we need to connect the PC to the module to establish network connection.
①. Connect the factory E103-W02 base board to the PC via Micro USB cable.
②. Open the serial debugging assistant "AccessPort" and select the port number; if you don't know the port number,
please check it in the device manager (see the figure below).
③. Set the serial port debugging parameters (Baud rate: 115200bps, data bit: 8bit, parity bit: no parity, stop bit: 1bit).
(See the figure below)

④. We open the wireless network on the PC, find the wireless network with SSID starting with "EBT" (e.g.
EBT_9BB311), and click "Next" to connect. (Here "9BB311" is the last 6 bits of the module MAC address, different
modules have different MAC addresses, so different modules have different factory SSIDs) ⑤.
After successful connection, the LED1 on the module base board is always on (GPIO9 is pulled low) and the PC shows
successful connection, otherwise, please operate the above steps again.
3.1.2 Module as AP to establish TCP SERVER wireless connection with PC
①. Open the TCP&UDP test tool, create the connection and set the parameters (see the figure below). (The parameter
value can be queried by sending the corresponding AT command through the serial debugging assistant and then exit the
AT command mode to realize the subsequent bi-directional communication between the PC and the module)

②. Click the "Create" button to complete the creation, and then click the "Connect" button.
③. The LED2 of the module base board is always on (GPIO10 is pulled low), which indicates that the connection is
completed, and you can finish the bi-directional data transfer between PC and module (i.e. TCP&UDP test tool and
serial debugging assistant communicate in both directions), otherwise, please operate the above steps again.
④. You can also transfer files (preferably TXT format files), so try it out.
3.1.3 Module as AP to establish UDP SERVER wireless connection with PC
Let's establish the UDP communication, which requires us to do a simple configuration of the module.
①. Please make sure the link preparation work is completed successfully.
②Enter AT command mode for simple configuration. (Please be sure to complete the operation of serial number 1
first, because we are sending commands, please turn off the Real Time Send function of serial port for better debugging,
if you use the serial debugging assistant without the Real Time Send function, please ignore this article)
a. Start serial debugging, enter the command "++++" in the send text box (please do not add line break), click Send to
start sending commands.
b. If the serial port returns "Entered AT mode" message, it indicates that it has entered AT command mode, otherwise,
please operate the above steps again.

③. We have entered the AT command mode by step ②, and we will start to configure the socket protocol.
a. In the Send text box, enter the command "AT+SOCK=UDP,SERVER,192.168.1.2,8887,8889" (please add a newline
character, that is, after entering the command "AT+SOCK=UDP,SERVER, 192.168.1.2,8887,8889" command followed
by the Enter key), click Send to start sending commands.
b. If the serial port returns "Socket update OK" message, it indicates that the command has set the protocol parameters
successfully, otherwise, please operate the above steps again.
④. After setting the parameters, please reset or power down and reboot to take effect; if there are other parameters not
set, please reset or power down and reboot after setting other parameters. Because we only configure the socket protocol
here, so we reset or power down and restart directly.
(GPIO10 pulled low) light will be lit immediately, indicating that UDP protocol is enabled.

⑤. Open the TCP&UDP test tool, create a connection, and set the parameters (see the figure below) .
6. Click the "Create" button to complete the creation.
⑦. If the creation is successful, you can finish the bi-directional data transfer between PC and module (i.e. TCP&UDP
test tool and serial debugging assistant). (i.e. TCP&UDP test tool and serial debugging assistant communicate in both

directions), otherwise, please operate the above steps again.
⑧. You can also transfer files (preferably TXT format files), so try it out.
In addition, customers can also set the socket link to TCP Client in AP mode, set the same way as above, here do not
elaborate.
3.1.4 Module as STA (Station) to connect to other WiFi hotspots
In order to facilitate users to use the module to access the network around the STA role in later sections, a section on
how to access other WIFI nodes for users' reference.
Module as STA (Station) to connect to other WiFi hotspots
①. Connect the factory E103-W02 base board to the PC via Micro USB cable.
②. Open the serial debugging assistant "AccessPort" and select the port number; if you don't know the port
number, please check it in the device manager (see the figure below).
③. Set the serial port debugging parameters (Baud rate: 115200bps, data bit: 8bit, parity bit: no parity, stop bit: 1bit).
(See the figure below)

④. Next, we enter AT command mode for simple configuration. (Since we are sending commands, please turn off the
Real Time Send function of serial port for better debugging; if the serial debugging assistant you use does not have Real
Time Send function, please ignore this article)
a. Start serial debugging, enter the command "++++" in the send text box (please do not add line break), click Send to
start sending commands. b. If the serial port returns the message "Entered AT mode", it indicates that it has entered AT
command mode, otherwise, reset Otherwise, reset and retry the above steps. If not, reset and retry the above steps.
⑤. Now our module is used as STA mode to connect to other APs, so we need to set the mode to STA mode first.
a. Enter the AT command "AT+ROLE=STA" in the Send text box of the serial debug assistant (please add a line break,
i.e. add the Enter key after entering the command "AT+ROLE=STA") and click Send to send the command.
b. If the message "Set STA mode" is displayed on the serial port, it means that it has been set to STA mode successfully,
otherwise, please operate the above steps again.
⑥. Next, you need to set the WiFi hotspot parameters (STA parameters) that we want to connect.
a. Enter the AT command "AT+STA=Ebyte,2,E61TTL1W" in the Send text box of the serial debug assistant (please
add a line break, i.e. after entering "AT+STA=Ebyte,2,E61TTL1W" (please add a line break, i.e., after typing
"AT+STA=Ebyte,2,E61TTL1W" and enter), click Send to send the command. (The "Ebyte" in the previous AT
command is the SSID of the WiFi hotspot (i.e. WiFi name), '2' is the encryption method WPA2 (0 if no password), and
"E61TTL1W" is the encryption method WPA2 (0 if no password). "E61TTL1W" is the WiFi password (if there is no
password, the item is empty))
b. If "STA update OK" message is displayed on the serial port, it indicates that the STA parameters have been set
successfully, otherwise, please operate the above steps again.

⑦. Reset or power down to restart the module, if the WiFi module is far away from the module, please connect the
antenna.
⑧. If LED1 is lit (GPIO9 pulled low), it indicates that the access to WiFi hotspot is successful.
Module as STA (Station) to connect to other WiFi hotspots via SmartConfig (one-click configuration)
①. Connect the factory E103-W02 base board to the PC via Micro USB cable.
②. Open the serial debugging assistant "AccessPort" and select the port number; if you don't know the port number,
please check it in the device manager (see the figure below).

③. Set the serial port debugging parameters (Baud rate: 115200bps, data bit: 8bit, parity bit: no parity, stop bit: 1bit).
(See the figure below)
④. Next, we will enter AT command mode for simple configuration.
a. Start serial debugging, enter the command "++++" in the send text box (please don't add line break), click Send to
start sending command.
b. If the serial port returns the message "Entered AT mode", it indicates that it has entered the AT command mode,
otherwise reset and retry the above steps.
⑤. First, set the mode to STA mode.
a. Enter the AT command "AT+ROLE=STA" (please add a line break, i.e. add the Enter key after entering the
command "AT+ROLE=STA") in the Send text box of the serial debug assistant, and click Send to send the command.
b. If the message "Set STA mode" is displayed on the serial port, it means that it has been set to STA mode successfully,
otherwise, please operate the above steps again.

⑥. Reset or power-down restart the module and repeat step
⑦. Next, we need to enter SmartConfig mode.
a. Enter the AT command "AT+SMT=60" in the Send text box of the serial debug assistant (please add a line break, i.e.
add the Enter key after entering the command "AT+SMT=60") and click Send to send the command. (The 60 in the AT
command here means that the WiFi hotspot is not connected after 60S, and will time out of SmartConfig mode) (During
this 60S period, the module waits to accept the command sent by the phone, and lights up LED1 (GPIO9 is pulled low)
if it is accepted successfully)
If the serial port shows "Enter into Smartconfig" message and LED3 (GPIO11 pull low) is lit, it indicates that it has
entered SmartConfig mode, otherwise, please retry the above steps.

⑧. Turn on your phone wifi and connect to a hotspot.
⑨. Install and open the mobile APP software "Wi-Fi Starter", enter the WiFi hotspot password, and click "Start".
(Network Name is the name of the WiFI hotspot that the phone is connected to, the software will automatically
recognize it, no need to input)
⑩. If the WiFi module is far away from the module, please connect the antenna. The LED1 light on the base board is lit
(GPIO9 pulled low), which indicates a successful connection to the WiFi hotspot, otherwise, please retry the above steps.
(After successful connection, the module will remember the WiFi hotspot (including password) connected this time, and
will connect automatically next time when you reset or reboot the module)