IEEE 802.15.4 is a technical standard – maintained by the IEEE 802.15 working group – that defines the physical layer and media access control (MAC) specifications for low-rate wireless personal area networks (LR-WPANs). It thus provides a generic standard MAC layer that can be the basis for protocols – including ZigBee and Thread – which then define the upper layers of the stack. OpenThread in an open-source implementation of Thread® standard based on the broadly supported IEEE 802.15.4 radio standard.
OpenThread protocol implements all Thread networking layers (IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, Mesh Routing) and device roles, as well as Border Router support. It requires a small memory footprint and is highly portable. It is ideally suited for IPv6 based low power wireless device to device communication for home applications.
Based on ST’s best-in-class, ultra-low-power STM32L4 microcontrollers, STM32WB dual-core wireless MCUs with its OpenThread stack supports the IEEE 802.15.4 communication protocol in both Single and Concurrent mode. It covers a wide spectrum of IoT application needs. It is a Thread certified component.
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We asked Nathalie the following questions: - Why is the STM32WB the best product for 2.4GHz design? - How can the STM32WB accelerate customer development? - How can STM32WB help tackle hidden system cost? - Can we see a quick demo?
| Part Number | Description | |
|---|---|---|
| P-NUCLEO-WB55 | Bluetooth™ 5 and 802.15.4 Nucleo Pack including USB dongle and Nucleo-68 with STM32WB55 MCUs, supports Arduino™ Uno V3 and ST morpho connectivity | Quick view Key Features
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Bluetooth™ 5 and 802.15.4 Nucleo Pack including USB dongle and Nucleo-68 with STM32WB55 MCUs, supports Arduino™ Uno V3 and ST morpho connectivity
Development Tools
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Picture Part number Manufacturer Description 
STM32CubeMX ST STM32Cube initialization code generator 
STM32CubeMonRF ST Software tool to test the RFperformance of STM32-based hardware devices 
STM32CubeProg ST STM32CubeProgrammer software for all STM32 Part NumberSTM32Cube initialization code generator
Software tool to test the RFperformance of STM32-based hardware devices
STM32CubeProgrammer software for all STM32
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Embedded Software
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Picture Part number Manufacturer Description 
STM32CubeWB ST STM32Cube MCU Package for STM32WB series (HAL and LL low level drivers, USB, File system, RTOS - coming with examples running on ST boards: STM32 Nucleo, Discovery kits and Evaluation boards) Part NumberSTM32Cube MCU Package for STM32WB series (HAL and LL low level drivers, USB, File system, RTOS - coming with examples running on ST boards: STM32 Nucleo, Discovery kits and Evaluation boards)
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EMI Filtering and Signal Conditioning
| Part number | Description |
|---|---|
| MLPF-WB55-01E3 | 2.4 GHz low-pass filter matched to STM32WB55 |
Microcontrollers & Microprocessors
| Part number | Description |
|---|---|
| STM32WB55CC | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 256Kbyte of Flash memory, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55CE | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 512Kbyte of Flash memory, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55CG | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 1 Mbyte Flash, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55RC | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 256 Kbyte Flash, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55RE | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 512Kbyte of Flash memory, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55RG | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 1 Mbyte of Flash memory, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55VC | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 256Kbyte of Flash memory, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55VE | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 512Kbyte of Flash memory, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
| STM32WB55VG | Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 1 Mbyte of Flash memory, Bluetooth 5, 802.15.4, USB, LCD, AES-256 |
