Ebyte E103-W01 User manual

E103-W01 User Manual
ESP8266EX UART to WiFi Module

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 1
Contents
1 GENERAL INTRODUCTION ................................................................................................................... 2
1.1 BRIEF INTRODUCTION.......................................................................................................................................................................... 2
1.2 FEATURES ............................................................................................................................................................................................... 2
1.3 APPLICATION.......................................................................................................................................................................................... 2
2 SPECIFICATION AND PARAMETER...................................................................................................... 3
2.1 LIMIT PARAMETER ................................................................................................................................................................................ 3
2.2 OPERATING PARAMETER...................................................................................................................................................................... 3
3 SIZE AND PIN DEFINITION.................................................................................................................... 4
4 RECOMMENDED CONNECTION DIAGRAMS...................................................................................... 5
5 PACKAGE REQUIREMENTS .................................................................................................................. 6
6 QUICK START.......................................................................................................................................... 6
6.1 CONNECTED TO TCP SERVER AS CLIENT ......................................................................................................................................... 7
6.2 MODULE BUILD TCP SERVER TO CONNECT TO PC AS AP...................................................................................................... 16
6.3 USAGE OF SMART CONFIG ................................................................................................................................................................ 18
6.4 USAGE OF GPIO.................................................................................................................................................................................. 19
6.5 USAGE OF ADC................................................................................................................................................................................... 19
6.6 MODIFY UART BAUD RATE ............................................................................................................................................................. 20
7 SPECIFICATION FOR NETWORKING ................................................................................................ 20
7.1 NETWORKING ROLE............................................................................................................................................................................ 20
7.2 NETWORKING MODEL ........................................................................................................................................................................ 21
8 AT COMMAND ....................................................................................................................................... 23
9 HARDWARE DESIGN ............................................................................................................................ 24
10 FAQ........................................................................................................................................................ 25
10.1 COMMUNICATION RANGE IS TOO SHORT ...................................................................................................................................... 25
10.2 MODULE IS EASY TO DAMAGE........................................................................................................................................................ 25
10.3 BER(BIT ERROR RATE) IS HIGH .................................................................................................................................................... 25
11 PRODUCTION GUIDANCE.................................................................................................................. 26
11.1 REFLOW SOLDERING TEMPERATURE............................................................................................................................................. 26
11.2 REFLOW SOLDERING CURVE ........................................................................................................................................................... 26
12 E103 SERIES ......................................................................................................................................... 27
13 PACKAGE ............................................................................................................................................. 27
REVISION HISTORY ................................................................................................................................ 28
ABOUT US ................................................................................................................................................. 28

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 2
1 General Introduction
1.1 Brief Introduction
E103-W01 is 100mW UART to wi-fi module with
competitive price. Small-size, embedded PCB antenna, operate at
2.4~2.4835GHz frequency band, with all those features, E103-
W01 is easy for user to operate.
E103-W01 is Ebyte based on ESP8266EX from Espressif,
transparent transmission is available, easy for user to operate,
supports AT command, server AT command. User can connect
with internet by UART, which enable the module are widely used
in wearable electronics, home automation, home application,
smart plugs and lights and industrial wireless control.
E103-W01 supports standard IEEE802.11b/g/n protocol and
complete TCP / IP protocol stack, supports STA/AP/STA+AP mode, supports Smart Config, transparent transmission, IO
control, transparent transmission on power-up, PWM output, AD detection etc. Network connection can be achieved after
easy configuration, which saving operation and develop time for user.
1.2 Features
The measured communication distance can reach100m;
Maximum transmission power of 100mW，software multi-level adjustable;
Support the global license-free ISM 2.4GHz band;
210ms boot transparent transmission, dropped automatically connected;
The AT command allows the module to enter the WeChat AirKiss configuration mode;
Support 3.0V~3.6V power supply,，power supply over 3.3Vcan guarantee the best performance;
Industrial grade standard design, support -40 ~ 85 °C for working over a long time;
Onboard PCB antenna.
1.3 Application
Home security alarm and remote keyless access;
Security system, positioning system;
Wireless alarm security system;
Building automation solutions;
Wireless Industrial Remote Controller;
Health care products;
Advanced Metering Infrastructure(AMI);
Automotive industry applications.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 3
2 Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min
Max
Power supply （V）
0
3.6
Voltage over 3.6V will cause
permanent damage to module
Blocking power（dBm）
-
10
Chances of burn is slim when modules
are used in short distance
Operating temperature（℃）
-40
85
-
2.2 Operating parameter
Main parameter
Performance
Remark
Min
Type
Max
Operating voltage（V）
3.0
3.3
3.6
≥3.3 V ensures output power
Communication level （V）
-
3.3
-
For 5V TTL, it may be at risk of
burning down
Operating temperature （℃）
-40
-
+85
Industrial grade
Operating frequency（MHz）
2402
-
2483
Support ISM band
Max TX power（dBm）
19.6
20.0
20.5
-
WiFi version
-
802.11
-
b/g/n
Tx802.11b,CCK11Mbps,POUT=+17dBm
-
170
-
mA
Tx802.11g,OFDM54Mbps,POUT=+15dB
m
-
140
-
mA
Tx802.11n,MCS7,POUT=+13dBm
-
120
-
mA
Rx802.11b,1024bytesPacket length,-
80dBm
-
20
-
mA
Rx802.11g,1024bytesPacket length,-
70dBm
-
56
-
mA
Rx802.11n,1024bytesPacket length,-
65dBm
-
56
-
mA
Partial sleep
-
15
-
mA
Sleep
-
0.9
-
mA
Deep sleeping
-
10
-
uA
Shut down
-
0.5
-
uA

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 4
Main parameter
Description
Remark
Reference distance
100m
clear and open area, antenna gain: 5dBi，antenna height:
2.5m
AT Support
Built-in intelligent processing
Can be read by AT command
Communication interface
UART Serial port
-
Package
SMD
-
Interface
2.00mm
-
Size
16 * 24 mm
-
Antenna
PCB Onboard Antenna
50 ohm impedance
Weight
1.3±0.1g
3 Size and pin definition
Pin
Name
Type
Function
1
RST
I
External reset signal (Low voltage level: Active)
2
ADC
I
ADC input pin
3
CH_PD
I
Module enable, need be pulled up
4
GPIO16
I
module wake up(from deep sleep state), high level effectively

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 5
5
GPIO14
IO
PWM1/GPIO14
6
GPIO12
IO
PWM0/GPIO12
7
GPIO13
IO
GPIO13
8
VCC
-
VDC:3.0V~3.6V（above 300mA）
9
GND
-
GND pin
10
GPIO15
I
GPIO15
GPIO2★
GPIO0
Boot
11
GPIO2
I
0
1
1
Boot from
FLASH
12
GPIO0
I
0
1
0
Download
firmware from
UART
13
GPIO4
IO
PWM2/GPIO4
14
GPIO5
IO
PWM3/GPIO5
15
RXD
I
UART input pin, support AT command
16
TXD
O
UART output pin, support AT command
★GPIO2 is already been internal pulled up
★ In transparent-transmission on power-up mode, GPIO2 will indicate the status of module. The module has
connected a led to this pin. Users can get the status of the module by observing LED. Besides, you may connect GPIO2
to the external MCU.
★ LED indication when module works in power-on transparent transmission mode：
Intermittent double flash：cannot connect to AP access point.
Intermittent single flash：connect to AP access point, but cannot connect to TCP server.
Quench：connect to AP access point and TCP server.
4 Recommended connection diagrams
Note：supply voltage is 3.0V~3.6V. 500mA LDO is recommended for steady operation of module.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 6
5 Package requirements
Note: Please try to use the package in the product package. When making the E103-W01 chip package, do not place
the pads under the non-functional pins！
6 Quick Start
E103-W01 module is easy to use. In order to allow users to quickly familiarize themselves with the module, this
section will guide the user through simple setup to achieve configuration and communication in various modes.
The test process uses AT commands. For quick connection, we have developed quick configuration software for users.
This section of the test uses the configuration software to operate, the module will echo the currently issued
instructions, so that users can quickly understand the usage of the AT command (Note: you need to add a line break
after each AT command).
Of course, after the user is familiar with the AT command, the AT command can be manually sent using the serial
debugging assistant without using the configuration software. It is also possible to use an external controller (MCU)
to directly connect to the module UART for AT command communication without using the backplane.
Hardware：
1
E103-W01*1
2
E103-W01 baseboard*1
3
PC with wi-fi
4
Router*1（Mobile wi-fi hotspots）
Software（download from our official website）
1
E103-W01 configuration software
2
TCP&UDP testing tool
3
Accessport 1.3

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 7
6.1 Connected to TCP server as Client
No.
Remarks
1
【Network connection】：
Computer connected to router, and the router named H60-L02(configurable for user)
Noted the IP address as 192.168.1.50
2
【Built TCP server】：
Open TCP&UDP test tool to build a TCP server: port6000 (configurable for user).
Click to start the server, then TCP server from PC starts to listen to port6000, and other network devices can
connect and communicate with it.
3
【Module installation】：
Substrates VCC short jumper, GPIO0 jumper disconnected.
Plug E103-W01 into test baseboard.
Plug the baseboard into PC by USB connector (Please download CP1202 driver if the PC cannot recognize
baseboard).
USB port number for testing：COM30.
AP mode is the default mode for E103-W01, which is equivalent to Wi-Fi router. Cellphone or PC can search

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 8
to the wi-fi name as EBT_XXXXXX (XXXXXX is last three-byte for MAC address).
If the MAC address for module is “1a:fe:34:ed:a6:68”， then SSID is “EBT_EDA668”.
No password for default.
4
【STATION mode configuration】：
Open Wi-Fi configuration software, select port number in the left corner, then the serial port open
automatically.
Serial port status changes to open now, click “STATION” button to enter configuration interface.
The test router name as Ebyte, password is e30e31e32.
Click “enter Sta mode” to change the mode to STATION.
Click “connect to router”, and wait a few seconds to see the interface shown in the figure below, which means
module is connected to the router successfully.
Then user can click “IP information query” to query IP information.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 9
5
【TCP Client configuration】：
Click “Client configuration” to modify the remote port as 6000(corresponding to TCP server), and modify
server IP as 192.168.1.50（refer to PC IP）, then click “built connection” button.
See below figure：“CONNECT OK” means connection for TCP server is done.
At present server shows the connection is ok for device which IP address is 192.168.1.70(IP address is assigned
by router).

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 10
6
【Transmitting】：
Use AT+CIPSEND command to transmit data, first send AT+CIPSEND=6 to specify the length of 6 bytes.
After “>” symbol shows, transmit data “123456”, user can see the TCP server receive data "123456".
Data communication completed.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 11
7
【Transparent transmission】：
After the configuration, module can transmit data to TCP server directly without AT protocol.
Configuration： click “enter transparent transmission mode”(AT+CIPMODE=1) after connected to server,
then input AT+CIPSEND to enter transparent transmission mode.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 12
Notes: module no longer receive AT command, transmit the data from UART to server directly.
If user continue to transmit data AT+CIPSEND, module will treat AT+CIPSEND as data and transmit it to
TCP server directly.
Data sent by server is also output directly from the module.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 13
8
【Transparent transmission on power-up】：
Advantage: save the complicated operation steps for user, once the configuration for transparent transmission
on power-up is done, transparent transmission can be achieved on power-up.
After using this function, user only need to configure the connection between router and TCP once.
When module re-start or re-power, it will connect with router automatically, then connect with specified TCP
server automatically. User only need to wait the completion of TCP connection (wi-fi indicator goes out), then
transmit data directly.
Click “transparent transmission on power-up” and input corresponding wi-fi name and password, then click
“wi-fi”, see below interface means configuration is down.
Input server IP address, port number, and choose TCP mode, then click “transparent transmission on power-
up”, see below interface means configuration is done.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 14
After click “re-start” or re-power the module, it will connect to the router and address automatically and the
connection status can be judged by wi-fi indicator (GPIO2).
After the connection to TCP server, transmitting and receiving can be done. See below,

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 15
Wi-Fi indicator(GPIO2) specification：
Intermittent double flash：cannot connect to AP access point.
Intermittent single flash：connect to AP access point, but cannot connect to TCP server.
Quench：connect to AP access point and TCP server.
It’s only need 210ms for E103-W01 to connect to internet.
9
【Exit transparent transmission】：
Send “+++” to exit transparent transmission mode and re-enter AT mode.
After exiting transparent transmission mode, user can use AT command to exit transparent transmission on
power-up mode. See below,
Click “exit transparent transmission” (send “+++” without line break) to enter AT command mode. Click
“turn off transparent transmission” to see below interface.
After the configuration, module will not works at transparent transmission mode automatically after
rebooting.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 16
6.2 Module build TCP SERVER to connect to PC as AP
No
Remarks
1
In factory mode, module’s IP address is 192.168.4.1 when act as AP.
Check network status of PC, see below information means the connection between PC and module is ok.
AT command can be used to restore the factory state if user ever changed module’s parameter.
2
【Module recommends TCP server】:
Make sure PC is connected to the modules, then click "server settings" button.
Click “open multiple connections”(exiting transparent transmission mode is necessary) first, then click “built
server” to see below information.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 17
3
【PC connected with TCP server of module to transmit data】：
PC uses TCP&UDP test tool to build TCP server, target IP:192.168.4.1, port：1001.
Click “connect” button, then the module should output as shown below: "0, CONNECT" (0 means connection
ID), indicating that clients (up to 5) are connected to the module.
PC transmits data, module outputs “+IPD,0,15:XXXXXXXX”（+IPD：command 0:connection ID 15：data
package length XXXXXX：data）
Specified connection ID is necessary during transmitting：AT+CIPSEND=0,10 means transmitting 10-byte
data to connection 0.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 18
6.3 Usage of Smart Config
No.
Remark
1
Smart Config enable user to use phone APP to configure module and connected with network with fast-speed.
When module works at STATION mode, send“AT+CWSTARTSMART” to enter Smart Config mode，then the
configuration for module can be done by cellphone.
User only need to start EspTouchAPP（download from Expressif systems） on cellphone, then input router
password on the APP to make connection between module and router.

Chengdu Ebyte Electronic Technology Co., Ltd. E103-W01 User Manual
Copyright ©2012–2018 Chengdu Ebyte Electronic Technology Co., Ltd. 19
6.4 Usage of GPIO
No.
Remark
1
E103-W01 provides 5 GPIOs: GPIO4\GPIO5\GPIO12\GPIO13\GPIO14.
2
The user can set the pin through the AT+SYSIO series of instructions, the instructions are as follows:
AT+SYSIOSETCFG: Set the IO working mode;
AT+SYSIOGETCFG: Query working mode;
AT+SYSGPIODIR: Set GPIO work as input and output;
AT+SYSGPIOWRITE: Set the output level of GPIO;
AT+SYSGPIOREAD: Read the level status of GPIO;
6.5 Usage of ADC
No.
Remark
1
E103-W01 provides one ADC with 10-byte precision, with which 0.0V ~ 1.0V voltage can be detected.
2
User can get current ADC value by AT command (AT+SYSADC?), then obtain the real voltage by calculation.
3
Input voltage=ADC value/1024
For example, ADC value is 45, so the really voltage is equal to 45/1024=0.044V.