eS-WiFi Module Application Note AN20052 Soft
Contents
1. cscscscscscscscsccccccecscscscsees 5 USE CASE 2 DIRECT CONNECTION TO THE ACCESS POINT cscscscscscscscscscscsccscscscscscscsssscssscssscsees 8 4 0 SOFTAP FEATURES varas e Wilco o an 9 5 0 DOCUMENT REVISION HIS TORS Wo o ho ooo lo ccoconocnonccnononconononnononnononcanononcononnenoncnnononoono 10 Oy Inventek Systems Embedding Connectivity Everywhere DOC AN20046 1 0 Application Note 1 0 SCOPE The scope of this document is an application note to assist users to understand the capability of the Inventek eS WiFi Access Point mode The eS WiFi family of products has a powerful built in SoftAP that allow customers to easily configure the STA Station to join a network setup a Peer To Peer Network and On The Go Gaming This application note is currently in process and the findings are not complete and subject to change The document will be updated upon conclusion of the testing 1 1 Supported Products This application is applicable to the eS WiFi firmware release 1 2 and is currently available on the following eS WiFi modules ISM4319 M3 L44 C Ceramic Antenna w STM103 Microcontroller on board ISM4319 M3 L44 E Printed Micro strip Antenna w STM103 Microcontroller on board ISM4319 M3 L44 U U FL Connector to external antenna w STM103 Microcontroller on board ISM4319 M3E L44 E Printed Micro strip Antenna w STM205 Microcontroller on board ISM4319 M3G L44 E Printed Micro strip Antenna w STM205 Microcontroller on2. board ISM43362 M3G L44 U E Printed Micro strip Antenna or U fl w STM205 Microcontroller on board Preliminary Subject to change eS WiFi Power Saving Modes Inventek Systems Embedding Connectivity Everywhere DOC AN20046 1 0 Application Note 2 0 INTRODUCTION The eS WiFi modules are wireless LAN modules that are usually in devices that connect to home networks Wi Fi hot spots and workplace networks These devices operate as a station or STA which can connect to a single wireless router access point AP that is typically hardwired at a fixed location The eS WiFi family of 802 11 b g n modules has an embedded microcontroller running a fully integrated TCP IP stack simple to use AT command Set and also have implemented a Soft Access Point SoftAP technology which enables a STA to behave like a wireless AP 3 0 SOTFAP OVERVIEW The Inventek eS WiFi modules are offered with a complete TCP IP stack and require only a simple AT command over USB UART or SPI to communicate with the module Typically an embedded product can use a simple 8 bit microcontroller to send the AT command set to initiate a SoftAP once the AP is started other devices users can join the network and be connected as a STA client on that network USE CASES OF THE SOFTAP USE CASE 1 JOINING A LOCAL AREA NETWORK USING THE SOFTAP You have an embedded product and you want to configure that product to join a network One way to make this happen is to h
3. Inventek systems Embedding Connectivity Everywhere eS WiFi Module Application Note AN20052 Soft Access Point Functionality Inventek Systems www Inventeksys com 2 Republic Road Billerica MA 01862 Phone 978 667 1962 4 Embedding Connectivity Everywhere Oy Inventek Systems Contact Information Telephone 1 978 667 1962 Fax 1 978 667 1949 Location Mailing Address 2 Republic Road Billerica MA 01862 Hours of Operation Monday Friday U S EST 08 00 a m 05 00 p m Embedding Connectivity Everywhere Inventek Systems Copyright c 2011 DOC AN20046 1 0 Application Note At Inventek Systems we pride ourselves in being a USA based full service GPS and Wi Fi company While GPS modules and GPS antennas has been our primary focus we are expanding to provide a full line of Wi Fi products We also provide complete GPS services from consulting to custom design manufacturing and training For more information call 978 667 1962 or email Sales Support or Technical support Preliminary Subject to change eS WiFi Power Saving Modes Embedding Connectivity Everywhere Oy Inventek Systems DOC AN20046 1 0 Application Note Table of Contents TABLE OF CONTENTS LO A en A Se rT rre 4 1 1 SUPPORTED PRODUCTS 4 2 0 INTRODUCTION an a o ere 5 3 0 SOTFAP OVERVIEW iia aia A A Us 5 USE CASES OF THE SOPTAP sisas ni Is ER e 5 USE CASE 1 JOINING A LOCAL AREA NETWORK USING THE SOFTAP
4. N 0015E969E8C0 ail 4 00 15 E9 69 E8 C0 Inventek aiil 11 C0 C1 C0 44 66 54 Cisco39255 guest aiil 11 C0 C1 C0 44 66 56 OTHER Join DIRECT CONNECT Refresh Choose OTHER to access a hidden network Choose DIRECT CONNECT to stay connected to this network Note Customers can use an AT command to change the name of the SoftAP name to identify their product i e change eS WIFI to INVENTEK SoftAP Manual Join screen shots Password Prevent this page from creating additional dialogs Prevent this page from creating additional dialogs Preliminary Subject to change eS WiFi Power Saving Modes Embedding Connectivity Everywhere Oy Inventek Systems DOC AN20046 1 0 Application Note USE CASE 2 DIRECT CONNECTION TO THE SOFTAP You have embedded the eS WiFi in a terminal device at the airport configured as a SoftAP that allows smartphone PC s or other devices to make a Direct Connection via the eS WiFi SoftAP The SoftAP enables file transfers file sharing printing and information exchange between as many as 8 clients STA This is all accomplished without the use of a fixed AP One way to make this happen is to have the eS WiFi automatically power up as a SoftAP that a user can see using a PC or any smartphone and selects Direct Connect on the eS WiFi SoftAP web server As soon as the user selects Direct Connect the Access Point remains running and the client STA is connected to the eS WiFi So
5. ave the eS WiFi automatically power up as an Access Point that a user can use a PC or any smartphone to see the AP and type in the SSID or Password As soon as the user hits Join the Access Point is closed and now the eS WiFi module turns off the AP and joins the network as a STA client Here is an example of the AT command required the above use case happen Preliminary Subject to change eS WiFi Power Saving Modes Oy Inventek Systems Embedding Connectivity Everywhere DOC AN20046 1 0 Application Note 1 AT Commands a AO The Following happens i Activate Access Point li Activate DHCP iii Activate web server iv Activate DNS 2 Select Join on the Webpage and the following happens i Access Point shuts down ii DHCP shuts down iii DNS shut down iv Module Joins the network as a STA client 3 Done You are connected as a client on the network The user also has the ability to manual enter the information to join to a network as well S eS W1IF1 as a STA on the Network on 4 Figure 1 Wireless Configuration Preliminary Subject to change eS WiFi Power Saving Modes Gpe Systems i es i DOC AN20046 1 0 Application Note C Configuration Access Poin x gt C O19216811 C Getting Started Imported From Firef SoftAP screen shots Gs eS WiFi Configuration Access Point Configuration Network Name Signal Security Channel BSSID HAI all 6 20 4E 7F 34 4F 4F Join HIDDE
6. ftAP This allows WLAN devices to easily connect without the need for a fixed AP This allows for WiFi Peer To Peer and ON The GO Gaming capability printing and file sharing Here is an example of the AT commands required in the above use case 1 AT Commands a AO The Following happens i Activate Access Point ii Activate DHCP iii Activate web server iv Activate DNS 2 Select Direct Connect on the Webpage and the following happens i Access Point continues to run and manage the SoftAP ii DHCP continues to run iii Web server is shutdown but SoftAP is visible 3 Stations is connected to the SoftAP 4 Done You are connected as a client on the network Preliminary Subject to change eS WiFi Power Saving Modes S Systems i i ie DOC AN20046 1 0 Application Note Direct Connection allows the embedded eS WiFi to run as a SoftAp e Share files between STA s e Allows for Device to Device connection e Machine to Machine e Full interoperability 4 0 SOFTAP FEATURES lt r Security Open WEP WPA PSK in development Limit Station Yes ISM4319x support 2 ism43362 association support 8 Preliminary Subject to change eS WiFi Power Saving Modes Inventek Systems Embedding Connectivity Everywhere DOC AN20046 1 0 Application Note 5 0 DOCUMENT REVISION HISTORY 7 20 12 Initial Creation User Manual Initial Release Preliminary Subject to change eS WiFi Power Saving Modes 10 I
7. nventek Systems Embedding Connectivity Everywhere DOC AN20046 1 0 Application Note nventek systems Embedding Connectivity Everywhere 3 www inventeksys com Inventek Systems 2 Republic Road Billerica MA 01862 Preliminary Subject to change eS WiFi Power Saving Modes
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