Web Site: www.parallax.com Office: (916) 624-8333 Forums: forums.parallax.com Fax: (916) 624-8003 Sales: sales parallax.com Sales: (888) 512-1024 Technical: support parallax.com Tech Support: (888) 997-8267 Parallax WX ESP8266 Wi-Fi Modules DIP ( 32420D), or SIP ( 32420S) The Parallax WX Wi-Fi module offers a new way to add Wi-Fi connectivity to your your microcontroller projects. It can function as its own wireless access point (AP) or as a station (STA) on another Wi-Fi network, or even both for brief periods of time when joining another network. In either mode, it can serve its own configuration pages as well as user-created web pages that make it possible for devices to interact with a microcontroller through the Wi-Fi module. On Wi-Fi networks configured to allow it to access the Internet, it can also send and receive a variety TCP/IP messages for Internet of Things (IoT) projects. This module also serves its own firmware upgrade page that allows you to pick and upload the latest open source firmware revision, or even variations that support specific applications as they become available. Features 32420S (right) - A breadboard-friendly, 5 and 3.3 V compatible 0.1 inch SIP package that works well with the BASIC Stamp, Arduino and Propeller 32420D (left) - A 3.3 V, 2 mm DIP package designed to work with the socket on the Propeller Activity Board, both original 32910 and WX 32912. NOTE: These modules are not compatible with Parallax XBee adapter boards. Copyright Parallax Inc. ESP8266 Wi-Fi Module ( 32420) v1.0 05/12/2016 Page 1 of 12 Supports 2.4 GHz Wi-Fi access through the ESP8266-WROOM-02 module (FCC and CE approved) Transparent serial communication mode for wireless microcontroller programming and debugging (Activity Board WX) Command serial communication mode for exchanging information with the host microcontroller 3 Wi-Fi modes: (AP) as access point that up to four devices can join, (STA) as a station on another Wi-Fi network, and (STA + AP) station plus access point for joining another Wi-Fi network. Micro web server allows other devices to access both configuration and user created/uploaded web pages in STA or AP mode. Approximately 1 MB of user file system for storing web pages and other content. Built-in configuration web pages for settings, networks, file uploads and over the air firmware updates. Over the air (OTA) web page uploads via a simple web interface. Upload one or more pages to the modules user file system. The Wi-Fi module will serve those pages to computers and mobile devices that have joined its network (AP) or on the same network with it (STA). This will allow your microcontroller projects to interact with computers, tablets, cell phones, and other devices on the network. OTA firmware upgrades, also through a simple web interface. With this, your Wi-Fi module can always be ready for latest features and projects contributed by Parallax and the open source community. Supports HTTP (server), WebSocket (server), and TCP (client) connections. HTTP/WebSocket allows your Wi-Fi module to exchange data with other devices on the network through user-created web pages it serves. TCP enables connection to other devices for low-level communication, for example to build your own HTTP request to a page on the worldwide web. Power, Associate, Data In and Data Out LEDs visible from both sides of the pcb Application Ideas Set up your own pages for controlling and monitoring your robot or sensor projects. The module hosts and serves the pages over Wi-Fi and then acts as a simple serial intermediary between your microcontroller and HTTP or WebSocket clients accessing pages. Picture a Boe-Bot Robot reporting its Ping))) distance measurements and receiving control commands from a web page on a cell phone. Copyright Parallax Inc. ESP8266 Wi-Fi Module ( 32420) v1.0 05/12/2016 Page 2 of 12