Fujitsu Introduces Wirepas Mesh 2.4GHz Embedded Wireless Modules, with Small Footprint Allowing for Flexible Mesh Network Design

PublishTime： 2023-04-24 Article Source：Fujitsu News

Fujitsu Components America today launched the FWM7BLZ22x series of Wirepas Mesh 2.4GHz embedded wireless modules to meet the increasing need for flexible mesh network designs.

The series includes three models:

FWM7BLZ22W (Sink):

The Sink, which interfaces between the router nodes (Anchors) and gateway software, is controlled by a host CPU using Wirepas Dual-MCU API via USB or UART.

FWM7BLZ22P (Anchor):

For positioning applications, the Anchor functions as a router node for location detection and can operate in standalone mode or be managed by the host CPU using UART. A USB option will be available at a later date.

FWM7BLZ22T (Tag):

The tag is used for positioning applications. A non-router node, the Tag indicates the data for the location of moving objects being tracked. It works in standalone mode or can be managed by the host CPU through UART. A USB option will be offered at a later date.

All modules in the series are powered by Nordic Semiconductor’s nRF52833 SoC, and feature an embedded Mesh 2.4GHz stack from Fujitsu partner Wirepas, which boasts low power consumption from a wide voltage range of 1.7 to 3.6V. The Wirepas Mesh 2.4GHz architecture can accommodate changes to data transmission routes locally in the network environment, such as device failures and increases or decreases in the number of devices. The architecture also allows for easy deployment of small or large-scale decentralized systems and supports wireless remote firmware upgradeability (OTAP).

With dimensions of 7.5x7.9x1.7mm, the small footprint requires a minimal mounting area on the PCB. An enhanced output power of +8dBm enables potential transmission range extension, while strong resistance to radio interference—a feature of Wirepas Mesh 2.4GHz—allows higher-density installation to seamlessly work with existing nodes. There are no embedded antennas, maximizing the flexibility of electrical and housing designs to meet end-users requirements.

The modules can be used with existing Fujitsu mesh network products. Key applications include asset management, sensor networks, and smart lighting, just to name a few. Samples are available now, and orders for all three models will be accepted immediately.

Technical features:

High-performance Nordic nRF52833 SoC (ARM Cortex-M4, 512 kB Flash, and 128 kB RAM embedded)
Embedded Wirepas Mesh 2.4GHz stack
Host interface: USB or UART
Operating Voltage: 1.7 to 3.6V
Operating temperature: -40 to +85℃
Output Power: +8 dBm, Rx Sensitivity: -96 dBm
External antenna for most flexible system design
Built-in crystal (32MHz and 32.768kHz)
Dimensions: 7.5x7.9x1.7mm

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