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The Compact-CS-D4IO is plug-and-play Wi-Fi stackable module and digital I/O to Wi-Fi Converter.

Compact-CS-D4IO is a client / server type Wi-Fi module.

This means that it is able to autonomously connect to a server, also public, and communicate with it. It can simulate a wire cutting between two devices used combined with a Compact-S-D4IO module.

Compact-CS-D4IO is a complete and fully certified module that offers a quick, easy and cost effective solution to OEMs to enable Wi-Fi connectivity into their systems.

The module is an IEEE 802.11bgn device that directly provides a wireless interface for data transfer and control of equipments. It integrates WLAN protocol and configuration functionality to make a fully WLAN solution.

It permits ad hoc and infrastructure mode to create itself a wi-fi network or to connect to an existent access point.


Compact-CS-D4IO makes a connection through four digital I/O pins available, configurable as input or output and propagated directly to Wi-Fi. User can write or read PIN status.

If PINs are configured as input, Compact module will send a byte every 100msec or when PIN value changes. This byte contain PIN status.

Analogously, if PINs are set as output it is possible to change its status by sending a byte through the socket.


The device is ready to be connected to a cloud solution, like Sense Cloud, to share data all over the world by the Internet.


The Compact-CS-D4IO modules are immediately ready to be used. Thanks to Wiicom configurator software, available on wiicom website, user can define all Wi-Fi network settings.

There’s no need to develope or modify any software on the host board.


All the COMPACT modules are an ideal solution for OEMs that devolved competence in the field of Wi-Fi or RF. In fact the COMPACT-S-D4IO eliminates development time on board of equipments, the burden of testing and certification, allowing customers to exclusively focus on core product.

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