Certified Wi-Fi Module for Secure Industrial IoT

wi-fi module

Würth Elektronik eiSos presents its compact Calypso wireless module designed to adequately address security issues in industrial IoT applications.

Würth Elektronik eiSos is offering a compact, fully integrated wireless module with dimensions of just 19 × 27.5 × 4 mm, for embedded systems in industrial applications. The module is Wi-Fi certified which ensures industry-agreed standards for interoperability, security, and a range of application-specific protocols, according to the company.

Calypso WiFi Radio module for industrial applications

The module, based on the IEEE-802.11-b/g/n standard, has its own antenna on board, but, thanks to “smart antenna selection”, can be optionally operated with an external antenna.


The tin-plated edges enable the module to be manually soldered for quick prototyping, as well as AOI in series production.

The module comes with an integrated TCP/IP stack and supports IPv4, IPv6 and common network applications, such as SNTP, DHCP, MQTT, mDNS, and HTTP(S). As an alternative to the standard firmware, the customer can select their own firmware, which is uploaded during manufacturing – thus obtaining a customized wireless solution for immediate use.

The AT command interface enables quick and easy expansion of an embedded system to incorporate a Wi-Fi interface.

To address security issues in industrial IoT applications, the module is equipped with six simultaneous secure sockets, secure boot, secure storage and secure OTA firmware updates.

The module is designed for operating temperatures of -40 to +85°C and has a low power operating mode for battery operated devices.

Calypso is pre-certified to save the user development time and costs.


The new Wi-Fi module is available from stock. Samples and evaluation boards can be requested.

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Watch a video on the new module.




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