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NORA-W2 series

AWS IoT ExpressLink stand-alone multiradio modules

Secure AWS cloud connectivity for industrial and consumer applications

  • AWS IoT ExpressLink with pre-provisioned AWS connectivity
  • Easy integration with high-level commands
  • Wi-Fi 802.11b/g/n and Bluetooth Low Energy 5
  • Enhanced security features
  • Small footprint and multiple antenna options
  • Global certification
10.4 x 14.3 x 1.8 mm

Product variants


Bluetooth Low Energy and Wi-Fi module with AWS IoT ExpressLink and antenna pin. Under development.


Bluetooth Low Energy and Wi-Fi module with AWS IoT ExpressLink and internal PCB antenna. Under development.

Product variantsNORA-W251AWSNORA-W256AWS
AT command support
Factory programmed MAC address(es)
Secure boot
Antenna pin
Embedded PCB antenna
Short range features 
Chip insideESP32-S3
Bluetooth qualificationv5.0 (Bluetooth Low Energy)
Bluetooth output power EIRP [dBm]8
Bluetooth Low Energy output power EIRP [dBm]8
Wi-Fi output power EIRP [dBm]18
Wi-Fi micro access point [max stations]10
Maximum number of connections5
Maximum Bluetooth range [m]500
Wi-Fi frequency [GHz]2.4
Wi-Fi standard 
IEEE 802.11b
IEEE 802.11g
IEEE 802.11n
Microprocessor on board  
Standalone module u-connect
CPU features 
RAM [kB]512 kB
Flash [kB]8192 kB
Electrical data 
Minimum supply [V]3.00
Maximum supply [V]3.6
Environmental data, quality & reliability 
Maximum temperature [°C]85
Minimum temperature [°C]-40
Size [mm]10.4 x 14.3 x 1.8

NORA-W2 series stand-alone, multiradio modules integrate a powerful 32-bit, dual core microcontroller unit (MCU) and radio for wireless communication. The radio provides support for Wi Fi 802.11b/g/n in the 2.4 GHz ISM band.

The embedded AWS IoT ExpressLink compliant software includes secured certificates that are pre-flashed in the modules. This allows the module to provide “out of the box” connectivity with Amazon Web Services (AWS) with no effort from the customer. It also supports secure Host and Firmware Over the Air (OTA) upgrades to sustain a high level of quality. Control and data communication is done through the module with stateless AT-commands over a serial interface.

The Evaluation kit supports modification of the endpoint to your development account. In the commercial releases of this module this endpoint is pre-defined to the u‑blox staging account and is managed through ownership transfer process through AWS Multi Account Registration.

The NORA-W2 AWS IoT ExpressLink grants OEM ownership transferal through the AWS Multi Account Registration (MAR) process. Fleet management, monitoring, and security auditing is supported by AWS IoT Device Management and AWS IoT Device Defender.

NORA-W2 includes the wireless MCU, flash memory, crystal, and components for matching, filtering, antenna and decoupling, making it a very compact stand-alone multiradio module. The module can be used to design solutions with top-grade security, thanks to integrated cryptographic hardware accelerators. This enables secure boot, which ensures the module boots up only in the presence of authenticated software. The small size and the embedded security capabilities make NORA-W2 ideal for critical IoT applications where security is important. Intended applications include consumer products, telematics, low power sensors, connected factories, connected buildings (appliances and surveillance), point-of-sales, and health devices.

The NORA-W2 series is globally certified, and this reduces time to market for the end-product. To ensure operation in harsh professional environments, the modules are of an industrial grade that are qualified according to ISO 16750 and support an extended temperature range of –40 °C to +85 °C.