Espressif ESP8266 Series Manual de usuario

Version 1.0

ESP8266 Ping Test

Demonstration

About This Guide

The document is structured as follows:

Release Notes

Chapter

Title

Content

Chapter 1

Overview

Introduction to the ping test demonstration.

Chapter 2

Architecture of the

Demonstration

Introduction to the architecture of the ping test demonstration.

Chapter 3

Environment Setup

Introduction to the hardware and software environment of the

ping test demonstration.

Chapter 4

Test Procedure

Introduction to the procedures of the ping test demonstration.

Chapter 5

Conclusion of the

Demonstration

Conclusion of the ping test demonstration.

Appendix Ⅰ

Installing UART Driver of

the ESP-Launcher

Introduction to the installation of the UART driver on the PC, and

how to use the UART debug tool.

Appendix Ⅱ

Flash Download Tool

Guide

Introduction to the Espressif ﬂash download tool, and how to use

it to download the ﬁrmware into the ESP-Launcher.

Date

Version

Release Notes

2016.09

V1.0

Initial release.

Table of Contents

1. Overview 1................................................................................................................................

2. Architecture of the Demonstration 2........................................................................................

3. Environment Setup 3................................................................................................................

3.1. Environment Preparation!3"............................................................................................................

3.1.1. Hardware Preparation!3"...................................................................................................

3.1.2. Software Preparation!3"....................................................................................................

3.2. Hardware Connection!4"................................................................................................................

3.3. Software Installation!4"...................................................................................................................

3.4. The ESP-Launcher!4".....................................................................................................................

4. Test Procedure 5.......................................................................................................................

4.1. Download Firmware!5"...................................................................................................................

4.2. Set ESP8266 to AP Mode for Ping Test!6".....................................................................................

4.3. Set ESP8266 to Station Mode for Ping Test!8"..............................................................................

5. Conclusion of the Demonstration 11.......................................................................................

I. Appendix - Installing UART Driver for ESP-Launcher 12........................................................

II. Appendix - Flash Download Tool User Guide 16....................................................................

1. Overview

This guide is intended to help users run ping test on the ESP8266 easily and quickly. It

demonstrates the testing of network connectivity by running ping test in Station mode or

SoftAP mode of ESP8266.

The ping test has been demonstrated and run on the ESP-Launcher. However, with

appropriate build settings, the test can be made to run on any ESP8266-based system.!

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2. Architecture of the Demonstration

2. Architecture of the

Demonstration

The architecture of the ping test demonstration is as follows:

•When the ESP8266 runs in SoftAP mode, the architecture of the ping test

demonstration is as Figure 2-1 shows.

Figure 2-1. ESP8266 Running in SoftAP Mode

•When the ESP8266 runs in Station mode, the architecture of the ping test

demonstration is as Figure 2-2 shows.

Figure 2-2. ESP8266 Running in Station Mode!

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3. Environment Setup

3.1. Environment Preparation

3.1.1. Hardware Preparation

3.1.2. Software Preparation

Table 3-1. Hardware Preparation

Name

Figure

Quantity

Description

ESP-Launcher

(ESP8266 demo board)

The development board with ESP8266.

Whip antenna is needed.

Micro USB Cable

To connect the ESP-Launcher to the PC.

•PC provides power supply.

•User can trace the log outputted from

ESP8266 on the PC UART tool.

PC for running demo tools:

Windows XP or Windows 7 OS is

recommended.

Android Mobile Phone

To run the Espressif phone APP:

Version Android4.0 or later is

recommended.

Router

To provide Wi-Fi network.

Table 3-2. Software Preparation

Name

Location

Description

demo.bin

./Bin-FW/

The ﬁrmware running on the ESP-Launcher

SecureCRT.rar

./Tools/

PC UART terminal emulator tool

(supports 74880 baud rate)

ft232r-usb-uart.zip

./Tools/

USB - UART converter driver

Flash Download Tool

./Tools/

To download the ﬁrmware into the ESP-Launcher

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3. Environment Setup

3.2. Hardware Connection

•ESP-Launcher connects to the PC via the Micro USB cable. For instructions on how to

install the UART driver on your PC, please refer to Appendix Ⅰ.

•A router through which ESP8266 can access the internet is needed.

3.3. Software Installation

Flash Download Tool is for downloading the ﬁrmware into the ESP-Launcher.

3.4. The ESP-Launcher



Figure 3-1. The ESP-Launcher

The switch “1”: toggle to the lower side

•Lower side: power-off

•Upper side: power-on

The switch “2”: toggle to the lower side

•Lower side: downloading ﬁrmware mode

•Upper side: program execution mode

The switch “3” (CHIP_EN Pin.): toggle to the upper side

•Lower side: chip disable

•Upper side: chip enable

The pin “4”: putting a jumper cap on the above 2 pins

The pin “5”: putting a jumper cap on it"

📖Notes:

•The ﬁrmware to be downloaded is in ./Bin-FW/.

•For information how to use Flash Download Tool, please refer to Appendix Ⅱ.

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4. Test Procedure

4.1. Download Firmware

1. Download ﬁrmware into the ESP-Launcher. Use Flash Download Tool (ESP8266

DOWNLOAD TOOL) to download ./Bin-FW/demo.bin into address 0x0000. For more

details about using Flash Download Tool, please refer to Appendix Ⅱ.

Figure 4-1. Downloading Firmware

📖Notes:

•In general, the ﬁrmware needs to be downloaded only once.

•A new version of the ﬁrmware with improved functionality or new feature may be downloaded into the

ESP-Launcher again.

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4. Test Procedure

2. Run the ﬁrmware to conﬁrm that the download is successful.

•Connect the ESP-Launcher to the PC using the Micro USB cable.

•Open the UART tool on your PC, and conﬁgure the baud rate as 115200.

•Toggle the switch “2” on the ESP-Launcher to the upper side to set it to be the

program execution mode.

•Next, toggle the switch “1” to the upper side to power up the ESP-Launcher.

•If the UART outputs the logs below, it means that the ﬁrmware is successfully

downloaded.

Figure 4-2. UART Output Logs

4.2. Set ESP8266 to AP Mode for Ping Test

1. Set UART baud rate to be 115200 for ﬁrmware installation. The illegible characters are

printed at the baud rate of 74880 and this is normal during correct power-up. Reset

ESP8266 upon power-on, when the “ready” message is printed, it means that the

ﬁrmware is running properly.

Figure 4-3. UART Output Logs

⚠Notice:

The baud rate of using AT commands is 115200.

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4. Test Procedure

2. After the “ready” message is displayed, users can send the AT command below to set

the SSID and password of ESP8266 SoftAP.

•AT command: AT+CWSAP=“Smart1ap”,“espressif0-1”,5,3

•Result:

Figure 4-4. Setting ESP8266 to AP Mode

3. Connect the PC to ESP8266 SoftAP of which SSID (Smart1ap) and password

(espressif0-1) are set in the Step 2 above.

4. Click the network icon #(in the task bar at the lower right corner of the PC desktop

screen). Connect the PC to the ESP8266 SoftAP (SSID: Smart1ap, password:

espressif0-1).

Figure 4-5. PC Connecting to ESP8266 SoftAP

⚠Notice:

•AT commands always terminate with “\r\n”. ESP8266 will not recognize commands not terminating

properly and will return “ERROR”.

•For more information on AT commands, please refer to ESP8266 AT Instruction Set.

⚠Notice:

It is recommended to have a PC with an external wireless card to connect to ESP8266 SoftAP as a station.

Using internal wireless card may cause poor Wi-Fi connectivity.

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