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

Request Response

AT+mqttConnect=[index] OK or error

Arguments:

index: client handle

Table 77: AT+MqttConnect

Request Response

AT+mqttDisconnect=[index] OK or error

Arguments:

index: client handle

Table 78: AT+MqttDisconnect

Request Response

AT+mqttPublish=[index],[topic],[QOS],[retain],

[messageLength],[message]

OK or error

Arguments:

- index: client handle

- topic: topic string

- QOS: QOS0, QOS1, QOS2

- retain: 0 = do not retain, 1 = retain

- message length: max 1460

- message: payload

Table 79: AT+MqttPublish

Request Response

AT+mqttSubscribe=[index], [number of Topics],

[topic1],[QoSn],[reserved1] ...

[topicX],[QoSn],[reservedX]

OK or error

Arguments:

- index: client handle

- number of topics: max 4

- topic: topic string

- QOS: QOS0, QOS1, QOS2

- reserved: leave empty

Table 80: AT+MqttSubscribe