Ai-Thinker ESP-07S User manual

ESP-07S & ESP-12S EVB
User Manual

1. Introduction
The ESP-07S/ESP-12S EVB is the evaluation board for testing wifi module (ESP-07S or ESP-12S)
and prototyping development. ESP-07S/ESP-12S EVB is composed of a ESP-07S or ESP-12S
evaluation board and a ESP-07S or ESP-12S module.
2. Mechanical Size & Pin Description
The following is the size of ESP-07S/ESP-12S EVB:
2.54cm X 4.83 cm
ESP-07S-EVB
ESP-12S EVB

The following is the pin description of ESP-07S/ESP-12S EVB:
3. Start quickly
The following is the quick start guide:
1. Let ESP-07S/ESP-12S EVB connect to your computer with MicroUSB. As soon as ESP-12S EVB
is connected to PC by MicroUSB, it will be brightening with blue light, and then the light will
be out. It means ESP-12S EVB is ready to operate. But, in case of ESP-07S EVB doesn’t have
LED on EVB. ;
2. If MicroUSB driver is not installed in your PC, information box will be pop-up to show an
unknown device. In this case, you can download a serial-driver for MicroUSB from the link,
http://www.wch.cn/download/CH341SER_EXE.html
And install it on PC.
3. Then open serial terminal for test as following. At this time, when you configure serial
interface, the serial baud rate should be 9600 or 115200 as default value :

4. AT command
Espressif is providing you with AT command set functions and methods of using AT commands set.
AT commands set is divided into three main parts such as Basic AT commands, WiFi related AT
commands and TCP / IP AT commands.
4.1 AT Command Description
Each Command set is composed of four types of AT commands.
Notes:
1. Not all AT Command has four commands.
2. [] = default value, not required or may not appear
3. String values require double quotation marks, for example :
AT+CWSAP="ESP756290","21030826",1,4
4. Baud rate = 115200 or 9600
5. At Command has to be capitalized, and end with “r/n”

4.2 Basic AT Command Set
The ESP8266 wireless WiFi modules can be driven via the serial interface using the standard AT
commands. Here is a list of some basic AT commands that can be used.
AT –Test AT startup
The type of this command is "executed". It's used to test the setup function of your wireless WiFi
module.

AT+RST –Restart module
The type of this command is "executed". It’s used to restart the module.
AT+GMR –View version info
This AT command is used to check the version of AT commands and SDK that you are using, the
type of which is "executed".
AT+GSLP –Enter deep-sleep mode
This command is used to invoke the deep-sleep mode of the module, the type of which is "set". A
minor adjustment has to be made before the module enters this deep sleep mode, i.e., connect
XPD_DCDC with EXT_RSTB via 0R.

ATE –AT commands echo
This command ATE is an AT trigger command echo. It means that entered commands can be
echoed back to the sender when ATE command is used. Two parameters are possible. The
command returns "OK" in normal cases and "ERROR" when a parameter other than 0 or 1 was
specified.
AT+RESTORE –Factory reset
This command is used to reset all parameters saved in flash (according to appendix), restore the
factory default settings of the module. The chip will be restarted when this command is
executed.
Detailed instruction test, please refer to the Espressif ESP8266 official AT command Set list.

Actual practice:
The operation method of client mode:
All of AT command should be written by capital letter.
1. Input AT command for startup.
Ex> AT

2. Set of working mode(1 Client(station) mode, 2 Server(Soft AP) mode, 3 bot
h(station + Soft AP mode))
Ex> AT+CWMODE=1(Client(station) mode)

3. Set of UART(the default baud rate would be 9600 or 115200, when you change the
baud rate, you need to reconnect COM port)
Ex> AT+UART=9600,8,1,0,0

4. Set of MAC address
Ex>AT+CIPSTAMAC="00:08:dc:00:11:12"

5. Set of IP address
Ex) AT+CIPSTA="192.168.0.30","192.168.0.1","255.255.255.0"

6. Connection to AP(Access Point)
Ex) AT+CWJAP="easy-net","66795252"

7. Connection to the remote Server
Ex> AT+CIPSTART="TCP","192.168.0.2",23

8. Data transmission
Ex>AT+CIPSEND=10

The operation method of Server(Soft AP) mode:
1. Set of working mode(1 Client(station) mode, 2 Server(Soft AP) mode, 3 bot
h(station + Soft AP mode))
Ex>AT+CWMODE=2(Server(Soft AP) mode)

2. Set of UART(the default baud rate would be 9600 or 115200, when you change the
baud rate, you need to reconnect COM port)
Ex>AT+UART=9600,8,1,0,0

3. Set of AP(Access Point)
Ex>AT+CWSAP_CUR="ESP8266","1234567890",5,3