Sterling-EWB IoT Module

Recommended for New Design (RND)

Overview

A match made for IoT.

New: AT command set firmware and sample applications!

The Sterling-EWB is a simple, secure, reliable way to gather meaningful IoT intelligence. It’s easier than ever to gather sensor data and wirelessly send it to cloud services like Amazon AWS. Available as an ultra-compact SiP and as a PCB module (chip antenna or U.FL connector), it's a comprehensive IoT platform in a cost-effective package.

  • A Full Hostless Platform - High performance STM32F412 Cortex M4
  • Power Conscious - Light power usage for long life on battery power
  • Multiple form factors - including all-in-one chip antenna module
  • Rugged Design - Supports industrial temperatures from -40°C to +85°C
  • Enterprise Security - WPA/WPA2, AES, TKIP, and more
  • Personal Support - Free antenna scans, design reviews, on-site EMC support and global FAEs / Tier 2 Support

Now with Easy-to-Use AT Command Set!

The Sterling-EWB now features an intuitive AT command set for development, configuration and deployment of customer applications for their host MCU. AT commands are an easy and familiar way to develop for both the 802.11 and Bluetooth LE wireless interfaces inside the Sterling-EWB. They use simple commands to configure, connect and send data to the cloud using the Sterling-EWB, with minimal wireless experience needed.

The AT command set dramatically reduces development time with a popular Hayes style interface familiar to many developers and can abstract hundreds of lines of C code into a few simple, pre-programmed functions. 

Learn More

Monitor with AT Command Set - Sterling-EWB

Specifications

Chipset (Wireless)
Cypress CYW4343W
Bluetooth Version
Bluetooth 5.1
Wi-Fi Spec
802.11 b/g/n
Additional Features
ADC, I2C, I2S, GPIO, Timers
BT Class
Class 1
BT Interfaces
HCI Interface using High Speed UART
Certifications
FCC, ISED, EU, MIC, AS-NZS, Bluetooth SIG
Chipset (MPU)
ST Micro STM32F412 Cortex M4
Compliance
REACH and RoHS Compliant
Development Tools
Infineon's WICED Studio OR AT Command Set
Dimension (Height - mm)
1.2 mm
Dimension (Length - mm)
10 mm
Dimension (Width - mm)
10 mm
Logical Interfaces
SPI, QSPI, USART, PCM
Memory
256 KB SRAM, 1 MB Internal Flash, 2 MB SPI Flash
Operating Temperature
-40° C to +85° C
Security
Open, WEP, WPA Personal, WPA2 Personal, WPA2 Enterprise, AES, TKIP
Storage Temperature
-40° C to +125° C
Voltage
3.0 to 3.6 V
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Antenna Options Bulk or Single Dimensions Form Factor Type
453-00012C Embedded Module 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W External Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz Trace Pin Bulk (Cut Tape) 10 mm x 10 mm SiP Module Module
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Antenna Options Bulk or Single Dimensions Form Factor Type
453-00012R Embedded Module 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W External Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz Trace Pin Bulk (Tape and Reel) 10 mm x 10 mm SiP Module Module
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Antenna Options Bulk or Single Dimensions Form Factor Type
453-00013C Embedded Module 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W External Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz U.FL Connector Bulk (Cut Tape) 16 mm x 21 mm PCB Module Module
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Antenna Options Bulk or Single Dimensions Form Factor Type
453-00013R Embedded Module 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W External Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz U.FL Connector Bulk (Tape and Reel) 16 mm x 21 mm PCB Module Module
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Antenna Options Bulk or Single Dimensions Form Factor Type
453-00014C Embedded Module 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W Internal Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz Integrated Chip Antenna Bulk (Cut Tape) 16 mm x 21 mm PCB Module Module
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Antenna Options Bulk or Single Dimensions Form Factor Type
453-00014R Embedded Module 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W Internal Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz Integrated Chip Antenna Bulk (Tape and Reel) 16 mm x 21 mm PCB Module Module
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Antenna Options Bulk or Single Form Factor Type
455-00030 Development Kit 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W Internal Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz Integrated Chip Antenna Single PCB Board Development Board
Product Type Technology OS/Software System Architecture Chipset (Wireless) Antenna Type Logical Interfaces Frequency Range (Min) Frequency Range (Max) Frequency Range 2 (Min) Frequency Range 2 (Max) Antenna Options Bulk or Single Form Factor Type
455-00031 Development Kit 802.11bgn, Bluetooth 5.1, Dual Mode (Classic + BLE) Cypress WICED Hostless Infineon (Cypress) CYW4343W External Serial, SPI, QSPI, PCM, ADC, I2C, I2S, GPIO 2400 MHz 2495 MHz 5150 MHz 5825 MHz Included FlexPIFA Antenna Single PCB Board Development Board

Certified Antennas

  • 2.4 GHz Dipole RF Antenna

    001-0001

    2.4 GHz Dipole WiFi & Bluetooth Antenna

    2.4 GHz Dipole Antenna 

    Learn More
  • FlexPIFA 6E - Wi-Fi 6E Antenna

    001-0014

    FlexPIFA / FlexPIFA 6E Flexible Adhesive-Backed PIFA Internal Antenna

    FlexPIFA antenna with U.FL connector

    Industry-first, flexible, planar inverted-F antenna for curved surfaces 2.5-3 dBi gain. 2.4 GHz, dual-band 2.4/5 GHz and Wi-Fi 6E 2.4/5/6 GHz.

    Learn More
  • FlexNotch Antenna

    001-0015

    FlexNotch 2.4 GHz Antenna
    Learn More
  • mFlexPIFA Antenna

    001-0030

    mFlexPIFA Flexible Adhesive-Backed PIFA Internal Antenna

    FlexPIFA antenna for metal mounting with minimal detuning. 2.4 GHz and dual-band 2.4/5.5 GHz with 2 dBi of gain. 

    Learn More
  • Nano Blue Series - Bluetooth Internal

    MAF94045

    NanoBlue Series Bluetooth Internal Antenna

    2.4 GHz planar antenna with 2 dBi of Gain and an integrated ground plane for ease of integration.

    Learn More

Become a Laird Connectivity Customer and Gain Exclusive Access to Our Design Services Team

  • Antenna Scans
  • Antenna selection and placement
  • Custom antenna design
  • Worldwide EMC testing / certifications
  • Embedded RF hardware / firmware design
  • Cloud architecture and integration
  • Mobile application development
  • Product & Industrial Design

Talk to an Expert

Documentation

Name Part Type Last Updated
Product Brief - Sterling-EWB + AT Command Set All Product Brief 07/08/2021
Datasheet - Sterling-EWB All Datasheet 07/15/2021
Software DVK Guide - Sterling-EWB All Documentation 03/15/2021
Cypress Developer Community (external link) All Documentation 07/08/2019
Sterling-EWB Demo Repository (external link) All Documentation 07/08/2019
FCC Certifications - Sterling-EWB All Certification 03/15/2021
ISED (Canada) Certifications - Sterling-EWB All Certification 12/09/2020
MIC (Japan) Certifications - Sterling-EWB All Certification 12/09/2020
EU Certifications - Sterling-EWB All Certification 01/14/2021
AS/NZS Certifications - Sterling-EWB All Certification 12/09/2020
Hardware DVK Guide - Sterling-EWB All Documentation 03/15/2021
CAD Files - Sterling-EWB U.FL and Chip Antenna Modules All Technical Drawings 09/26/2019
CAD, Assembly Drawings, BOM and Schematics - Sterling-EWB Development Boards All Technical Drawings 06/18/2020
RoHS 3 Compliance - Wi-Fi Products All Certification 10/30/2020
Regulatory Information - Sterling-EWB All Certification 01/14/2021
AT Command Guide - Sterling EWB All Documentation 03/16/2021
AT Command Set - Python Sample Applications - Sterling-EWB All Software 03/17/2021
AT Command Quick Start Guide - Sterling-EWB All Documentation 03/17/2021
Release Notes - Sterling-EWB (AT Command Set) v1.0.0.8 All Software 05/21/2021
Application Note - Certification Test Tools and Instructions - Sterling-EWB All Application Note 03/17/2021
ISED ICES-003 Issue 7 Declaration of Compliance All Certification 05/18/2021
Firmware (Full) - Sterling-EWB 1.0.0.8 (US) All Software 05/21/2021
Firmware (Upgrade) - Sterling-EWB 1.0.0.8 (US) All Software 05/21/2021
Firmware (Full) - Sterling-EWB 1.0.0.8 (JP) All Software 05/21/2021
Firmware (Upgrade) - Sterling-EWB 1.0.0.8 (JP) All Software 05/21/2021
Firmware (Full) - Sterling-EWB 1.0.0.8 (EU) All Software 05/21/2021
Firmware (Upgrade) - Sterling-EWB 1.0.0.8 (EU) All Software 05/21/2021
Firmware - Sterling-EWB AT Command Set v1.0.0.7 - EU All Software 03/17/2021
Firmware - Sterling-EWB AT Command Set v1.0.0.7 - JP All Software 03/17/2021
Firmware - Sterling-EWB AT Command Set v1.0.0.7 - US All Software 03/17/2021

FAQ

Can the Sterling-EWB operate as a Soft AP?

Yes, The EWB can operate as a soft AP and/or client.

How much space is available for the user's application in the Sterling-EWB?

A basic WICED app with Wi-Fi and BT will require about 300k bytes of internal flash. The Wi-Fi firmware is about 400k bytes and can live in either internal or SPI flash memory. The internal flash is 1 Mbyte.

If you’re using SPI flash for the Wi-Fi firmware, there is roughly 700k bytes free in the internal flash. If you’re using internal flash for the Wi-Fi firmware, you have roughly 300k bytes available.

There is a penalty at power-up for putting W-iFi firmware in SPI flash. Loading the firmware from SPI flash takes several (approx. 5) seconds. Loading the firmware from internal flash is considerably faster. After power-up, there is no difference.

What are the requirements to be able to leverage "Modular Approval"?

In order to be able to leverage the Modular Approval of a wireless module the following requirements have to be met:

  • The RF circuitry must be shielded
  • The module must have buffered modulation/data inputs. Module must inherently ensure compliance under host fault (watch dog) conditions
  • The module must have a regulated power supply
  • An antenna needs to be attached permanently or a unique antenna connector must be mounted on the module
  • The module must be compliant with the regulations in a stand-alone configuration
  • The module must be labeled with its permanently affixed FCC ID label or use an electronic display
  • A user manual needs to provide comprehensive instructions to explain compliance requirements.
  • The module must comply with RF exposure requirements

Does Laird Connectivity have plans to get KCC approval for the Sterling-LWB, Sterling-EWB or the Sterling-LWB5 modules?

Currently, there are no plans to get the KCC certifications for Sterling-LWB, Sterling-EWB or the Sterling-LWB5.

Which JTAG adatpers has Laird successfully tested on the Sterling-EWB?

The following debuggers were tested to program and debug the Sterling-EWB

 

 

The FTDI chip that is on the EWB dev kit board is nearly identical to what is inside of the Olimex adapter (FT2232).

Does the Sterling EWB support simultaneous AP and STA operation?

Yes it does. This can be easily tested with the apsta  sample app that's included with the WICED SDK. The sample app can be found in the ..\WICED-Studio-Folder\43xxx_Wi-Fi\apps\snip\apsta folder. Note when using this feature, the AP and STA has to be on the same channel.

Does the Sterling EWB support Enterprise Security? If so, what EAP types are supported.

Yes, it does. Per the Cypress' "Enterprise Security  User Guide", which is included with the WICED SDK, EAP-TLS, EAP-TTLS are PEAPv0-MSCHAPv2 are supported.

How many STA client connections does the Sterling EWB support?

To determine the max number of connections, use the wwd_wifi_get_max_associations() API. On version 6.2 of the WICED SDK, this API returns 32. Note however that actual numbers depends on the use case. Depending on the resources available on the host, it may or may not be able to service all 32 connections.