Ai-Thinker ESP8266EVB Manuel utilisateur

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ESP8266 EVB

User Manual

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Introduction:

ESP8266EVB isthe evaluation board for ESP12S or ESP07Swhich are

developed byEASY-NETCO., LTD. ESP8266 WiFi module has different F/W :

When user uses the standard AT command f/w, MCU ca/n do the data

communication by sending the AT commands through serial. User also can

use ESP8266SDK for his F/W customization.

Feature Identification

Notice：The Peripherals of Relay on EVB are just optional. So, EVB is

provided without any soldering in Relay part as default.

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Button Description:

RETSET

Through this button, user can restart ESP8266 module.

FLASH

With this button, user can reload a bin file in the boot mode.

In order to enter the boot mode, user should power on while

pushing this button.

Pin Description:

Power

Input

Alternative choice for 5V power supply

UART IO

With the pin, user can test the module with the highest baud rate

P1 P2 GPIO

Through this pin, user can use GPIO signal controlled by his own bin

file

Interface Description:

Power Input

This provides powers supply

USB Interface

This provides power supply & Serial interface

Default serial information:

♦Baud rate : 115200

♦Data rate : 8

♦Stop bits : 1

♦Parity : None

♦Flow control : None

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Dimensions:

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Schematic:

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Quick Start Guide:

1. Connect Micro USB cable

Use Micro USB cable to connect between PC and ESP8266EVB,and

download and install the driver of USB to TTL chip (CH340).

http://www.wch.cn/download/CH341SER_EXE.html

Check the COM port of the ESP8266 by referring the device management in

WINDOWS.

Refer to AT command user manual for testing the AT commands. Please,

notice that CH340 only supports the maximum baud rate at 2Mbps. If user

needs higher baud rate(ESP8266 module can support up to 4Mbps), please

connect the external serial debug device to the external serial pinand remove

the debug resister RP1, which can support such a high baud rate.

2. F/W 업데이트 방법

2-1. EVB 의FLASH 버튼을 누른 채로 USB 케이블을 컴퓨터에 연결한다.

2-2. 만약 CH340 의드라이버가 없다면 아래 링크에서 다운 받은 후

설치 한다. http://www.wch.cn/download/CH341SER_EXE.html

2-3. 제공된 ESPFlashDownloadTool_v3.4.9.2.EXE 를실행 시킨다.

ESP8266downloadtool Tap 을클릭하면 다음 그림과 같이 CMD Window 와

프로그램 UI 가동시에 실행된다.

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2-4. SDK 에있는 F/W 를download 할때는 아래 그림과 똑같이

setting 하여야 한다.

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2-4-1. 기본 F/W 는제공된 SDK 에포함되어 있는

esp8266_nonos_sdk_v1.5.4\ESP8266_NONOS_SDK\bin 안의 5 개파일을

사용한다. 5개파일은 다음과 같다.

①Boot_v1.5.bin

②user1.1024.new.2.bin(AT/512+512 폴더안)

③user2.1024.new.2.bin(AT/512+512 폴더안)

④esp_init_data_default.bin

⑤blank.bin

5개의 파일을 등록하고, 레지스트리 주소를 기입한다. 또한, 맨앞

항목란을 반드시 체크해야 한다.

2-4-2. SPI parameter setting

SPI SPEED 40MHZ, SIP MODE DIO

2-4-3. FLASH SIZE setting 8Mbit

2-4-4. Serial Setting

COM PORT 는사용 가능한 Port 를확인하여 선택하고, baud rate 는

115200 으로 설정

2-4-5. F/W downloading

START 버튼을 누르면 F/W 다운로딩이 진행이 된다. Progress bar 가모두

차면 다운로딩이 완료. 다시 EVB 를재부팅.

2-4-6. F/W downloading 성공 여부 확인

재부팅 후허큘리스 등의 CONSOLE 프로그램을 이용하여 AT+GMR 로제대로

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F/W 가다운로딩이 되었는지 확인

2-4-7. 주의 사항

최초에 FLASH버튼을 누르지 않고, POWER ON을하면 CMD 창에 아래와 같은

메시지가 뜸

Parameter setting 완료 후재부팅 시에는 FLASH 버튼을 누르지 않음

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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”

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