2.4 GHz Bluetooth wireless module includes Matter compatibility

The STMicroelectronics STM32WB5MMG module is a complete wireless system including antenna, power supply and matching network. The module’s support for the Matter protocol is valuable for new consumer device designs.

The STM32WB5MMG module from STMicroelectronics provides an easy way to implement Bluetooth® Low Energy, Zigbee, and Thread networking, and supports the new Matter protocol for seamless interoperability of compatible smart home devices made by any brand.

At the physical transport layer, the module supports the Bluetooth Low Energy v5.4 specifications, the Zigbee 3.0 and OpenThread wireless protocols, and proprietary IEEE 802.15.4 protocols operating at 2.4 GHz. 

The module also supports Matter applications in which Matter data are carried over a Thread network connection, with a Bluetooth connection optionally used for pairing operations. Matter technology was developed by the Connectivity Standards Alliance consortium, which includes consumer brands such as Google, Apple, Amazon, Samsung and Huawei. The current v1.1 specification of the Matter protocol is implemented in a software development kit for the STM32WB5MMG available on request from ST. 

The STM32WB5MMG provides best-in-class RF performance thanks to its good receiver sensitivity and high output power. The low-power features extend the run-time of small coin-cell batteries or energy-harvesting systems.

The STM32WB5MMG requires no RF expertise, and helps to speed development projects and reduce engineering costs. The module’s STM32CubeWB software package includes royalty-free protocol stacks for Bluetooth, Zigbee, and Thread networking.

The dual-core STM32WB55 MCU on which the STM32WB5MMG is based includes an embedded ultra low-power radio. It features an Arm® Cortex®-M4 core with floating point unit, DSP instructions, and a memory protection unit to enhance application security. An Arm Cortex-M0+ co-processor dedicated to managing the integrated IEEE 805.15.4 radio and cyber-protection features ensures real-time low-layer operations run smoothly without compromising application execution. 

ST’s patented ultra low-power microcontroller technologies and feature integration, which include the radio balun circuitry, ensure that the STM32WB55 wireless module helps designers to meet tight power and size constraints in a wide range of IoT and wearable devices. Alongside generous provision of analog and system peripherals, the MCU’s cyber-protection and identity features include secure firmware installation, customer key storage, a hardware public key authority, and cryptographic accelerators.

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