Würth Elektronik Calypso Wi-Fi module

Würth Elektronik offers the Calypso Wi-Fi module — a compact, fully integrated wireless module 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.

The module, based on the IEEE-802.11-b/g/n standard, has its own antenna on board but, due 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 product 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 user can select their own firmware, which is uploaded during manufacturing — thus obtaining a customised wireless solution for immediate use.

The AT command interface enables quick and easy expansion of an embedded system to incorporate a Wi-Fi interface. In order to adequately address security issues in Industrial Internet of Things applications, the company has equipped the Wi-Fi module with six simultaneous secure sockets, secure boot, secure storage and secure OTA firmware updates.

With dimensions of 19 x 27.5 x 4 mm, the module is designed for operating temperatures of -40 to +85°C and has a low power operating mode for battery-operated devices. It is pre-certified to save the user development time.