Reference Manual

5. Functional description
The Calypso WLAN module is intended to be used as a radio sub-system in order to provide
WLAN (IEEE 802.11) communication capabilities to system.
The UART acts as the primary interface between the module and a host micro-controller.
The module can be fully configured and operated using a set of AT-commands over UART.
Once configured, the module independently manages WLAN connectivity allowing the host
controller to utilize its resources elsewhere.
As a standalone WLAN radio module running a fully featured TCP/IP stack, Calypso can be
configured to operate in several modes at several layers of the protocol stack.
5.1. Key features
In this section, the features of the Calypso module is summarized in the form of a table.
Calypso offers the user to configure and exploit its rich features through an easy-to-use
command interface over UART.
Feature Description
Radio
standards
IEEE 802.11 b/g/n station
IEEE 802.11 b/g Access point (for provisioning only)
Wi-Fi Direct client and group owner
Channels 1-13
Security WEP, WPA/WPA2PSK, WPA2 Enterprise (802.1x)
Provisioning In AP mode using the on-board HTTPS server
Network layer IPv4, IPv6
IP addresssing Static, LLA, DHCPv4, DHCPv6 with DAD
Transport layer
TCP, UDP
SSLv3.0/TLSv1.0/TLSv1.1/TLSv1.2
Network
applications
SNTP client
HTTTP(S) server
mDNS, DNS-SD
DHCP server
Ping
Update Secure OTA update with fall back mechanism
Security
Secure key storage
Trusted root-certificate catalog
Encrypted file system
Secure OTA
Software tamper detection
Cloning protection
Power
management
802.11 power save power modes
Lower power sleep mode with timed or pin wake-up
Table 13: Key features
Calypso reference manual version 1.2 © April 2019
www.we-online.com/wireless-connectivity 27