WI-FI MODULE CALYPSO V2.0.0
NEW FEATURE INTRODUCTION

Wireless Connecticvity & Sensors
EXTERNAL

Wi-Fi Module Calypso
Overall functionality and focus

 Security „All-inclusive“ – fitting in nearly every application
 (Long Term) Availibility Documentation / Support

CALYPSO 2.0.0
2 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

New feature introduction v2.0.0
Overview
1. UART-to- Wi-Fi bridge or Transparent mode
2. New power save mode

3. Remote GPIO control
4. WPA3 security mode support
5. Customizable web pages
6. Improved overall performance

CALYPSO 2.0.0
3 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

1. UART to Wi-Fi bridge
Transparent mode
Boot-up mode selection
 normal mode AT-commands
 UART Connection
 „normal“ Data transmissionNEW provisioning mode
 acts as Access Point (AP) onboard Webserver
 easy configuring transparent mode
 automatic connection to preconfigured external Access Point Roles: TCP server/client, UDP, TLS server/client Configuration via
 AT command interface or web interface (including certificates for TLS) Power save mode support (Average current consumption < 2 mA)
 No need to implement the AT command interface – works without HOST

CALYPSO 2.0.0
4 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

 OTA mode FW update1. UART to Wi-Fi bridge
Transparent mode

End Point

CALYPSO

UART

Serial Device

CALYPSO 2.0.0
5 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

2. Power save mode
Save battery without going offline!
 Application processor in sleep
 Network processor active and connected Calypso online and connected (to AP with an active socket)
 No new connection after wake up necessary Saves a lot of time and with this energy Received packets still forwarded to the host MCU
 Wake up to transmit data Supported both in AT command mode as well as Transparent mode

 Average current consumption as TCP client connected to a server < 2 mA (When idle)

CALYPSO 2.0.0
6 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

3. Remote GPIO
Wi-Fi switch!
 4 general purpose pins can be controlled remotely over Wi-Fi
 Configured as Input or Output
 For 2 Pins also PWM mode possible
 Pin configuration can be saved on flash (no re-configurationon every re-start needed) Configuration and control via web API:CALYPSO 2.0.0
7 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

4. WI-FI SECURITY
Security mode Overview, new modes in red
 Open
 WEP

 WPA Personal (Wi-Fi Protected Access)NEW WPA2 Personal
 WPA2 –TKIP (Temporal Key Integrity Protocol)
 WPA2-CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol)

NEW WPA2+ Personal (Fixed security vulnerability of WPA2)NEW WPA3 Personal (AES-128 im CCM (Counter with CBC-MAC))

NEW WPA Enterprise (AES-256 in GCM (Galois/Counter Mode))

CALYPSO 2.0.0
8 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

5. CUSTOMIZABLE WEB PAGESRESTful APIs
 Representational State Transfer Application Programming Interface
 architectural style for an API that uses HTTP requests
 commonly used in the development of Web services
 Web APIs available to Configure Wi-Fi and network
 Configure usersettings
 Upload files to the module
 Configure/control remote GPIOs
 Custom API to talk to host MCU
 Custom API
 Web content determined by the host MCU
 i.e. Display sensor values
 i.e. Switch off a motor connected to the host
 Example web pages on-board

CALYPSO

Configuration pages
Wi-Fi and user settings
File system

CALYPSO 2.0.0
9 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

Remote GPIOs
Host MCU

6. OTHER UPDATESMore than you expect!
 Update NWP (Network Processor) service pack
 TI RTOS (Real-time Operating System) and drivers
 Bug fixes for known issues from v1.3.0
 Overall performance enhancements
 Lower latency: 1ms  10µs
 Higher throughput: 40% higherNEW

 New look website
 Easy FW Update (OTA) in AP mode
 Updated AT command toolNEW

 New Appnotes and user manualNEW

 The STM32 WCON SDK now supports Calypso Wi-Fi module

CALYPSO 2.0.0
10 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

CALYPSO v2.0.0
CONCLUSION
1. UART-to- Wi-Fi bridge or Transparent mode
 automatic connection to preconfigured external AP Power save mode support (Average current < 2 mA)
 Possible to work without HOST

4. WPA3 security mode support
 state of the art security

2. New power save mode with an average current consumption of < 2 mA
 Always active network connection

5. Customizable web pages
 Web content determined by the host MCU
 Easy development of Web services

3. Remote GPIO control
 can be controlled remotely over Wi-Fi
 Configured as Input or Output
 For 2 Pins also PWM mode possible

6. Improved overall performance Lower latency: 1ms  10µs
 Higher throughput: 40% higher
 STM32-SDK including Calypso
 New look website

CALYPSO 2.0.0
11 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

CALYPSO TRAINING MATERIAL
Hands-on Videos (4-8min to understand the functionality)
UART-to-WiFi bridge

Remote GPIO control

 Retrofitting IIoT Replace serial cable connection
 Transparent data communication

 WiFi switch

AppNote UART-to-WiFi-bridge

AppNote Remote GPIO control

CALYPSO 2.0.0
12 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

Dynamic Web Content

 Visualize Sensor Data
 Web interface

EVALUATION TOOLSModule Detailed documentation available
 UART communication
 Hand soldering with edge
castellation
 Altium, Eagle and CAD/STEP-files
available

CALYPSO 2.0.0
13 WIFI-MODULE
EXTERNAL | WIRELESS CONNECTIVITY & SENSORS | 03/2022

Evaluation Kit

 Easy evaluation
 Special PC-Software ATCommander available

Feather Wing

 Easy Proof of Concept
 Stackable A lot of other Feather Wings
available
 Codes and examples on github