Reference Manual

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Table Of Contents

Introduction
- Operational description
- Block diagram
- Ordering information
Electrical specifications
- Recommended operating conditions
- Absolute maximum ratings
- Power consumption
  - Static
- Radio characteristics
- Pin characteristics
- TX power vs current consumption
Pinout
Quick start guide
- Antenna connection
  - On-board PCB antenna
  - External antenna
- Minimal pin configuration
- Power up
- Region specific WLAN settings
- Quick start example
Functional description
- Key features
- Modes of operation
Host connection
- UART parameters
- Hardware flow control
- Timing and characteristics
The command interface
- Command types
- AT command characteristics
AT commands
- Device commands
- WLAN commands
- Network configuration commands
- Socket commands
- File system commands
  - File system operations
  - File operations
- Network application commands
- Events
Provisioning
- Start the provisioning mode
- Enter the credentials
Typical application use cases
- UDP communication
  - Prerequisites
  - UDP socket communication
- TCP communication
- Secure socket communication
- Wi-Fi direct example
- Running a web page on the radio module
Timing parameters
- Hard reset
- Soft reset
Firmware update
- Prerequisites
- Update procedure
Firmware history
Custom firmware
- Custom configuration of standard firmware
- Customer specific firmware
- Customer firmware
- Contact for firmware requests
Design in guide
- Advice for schematic and layout
- Dimensioning of the micro strip antenna line
- Antenna solutions
Reference design
- EV-Board
- Design Guide for FCC ID R7T1001102
- Application mode pins
Manufacturing information
- Moisture sensitivity level
- Soldering
- ESD handling
- Safety recommendations
Physical dimensions
- Dimensions
- Weight
- Module drawing
- Footprint
- Antenna free area
Marking
- Lot number
- General labeling information
  - Label of Calypso
Information for Ex protection
Regulatory compliance information
- Important notice EU
- EU Declaration of conformity
- FCC Compliance Statement
- IC Compliance Statement
- FCC and IC requirements to OEM integrators
- Pre-certified antennas
Important information
- General customer responsibility
- Customer responsibility related to specific, in particular safety-relevant applications
- Best care and attention
- Customer support for product specifications
- Product improvements
- Product life cycle
- Property rights
- General terms and conditions
Legal notice
- Exclusion of liability
- Suitability in customer applications
- Trademarks
- Usage restriction
License agreement for Würth Elektronik eiSos GmbH & Co. KG connectivity product firmware and software
- Limited license
- Usage and obligations
- Ownership
- Firmware update(s)
- Disclaimer of warranty
- Limitation of liability
- Applicable law and jurisdiction
- Severability clause
- Miscellaneous
Wi-Fi certificate
Error codes
- Disconnection reason codes
- Socket error codes
- Secure socket error codes
- WLAN error codes
- Device error codes
- Network config error codes
- File System error codes
- Other error codes
Root certificate catalog

The domain "calypso.net" is local and hence cannot be veriﬁed by known root

CAs. Hence, the on-board HTTPS server uses a self-signed certiﬁcate. As a

result of this, the browser on the conﬁguring device may a report security risk.

In this case the user has to trust the certiﬁcate and proceed to the website in

order to perform the provisioning operation on the WLAN module.

Figure 10: Provisioning main page

Click on the "Settings" button to open the settings menu. Several tabs are available to read

the current status of the radio module and to conﬁgure it. To save a WLAN proﬁle in the

radio module go to the "Proﬁles" tab and enter the credentials of the access point the radio

module is supposed to connect to.