STM32 Wireless MCUs

Light dots connected over a town

The ideal fit for RF designers looking for more than a simple radio device.

The STM32Wx microcontrollers enable wireless connectivity. They support the sub-GHz band and the 2.4 GHz frequency range. Highly integrated and reliable, they address a wide range of industrial and consumer applications.

STM32Wx solutions are compatible with multiple protocols, from point-to-point & mesh to wide-area networks. They are power efficient and offer built-in security features.

STM32Wx wireless MCUs feature a two-in-one, dual-core architecture. Built around an MCU and a radio transceiver, STM32Wx MCUs come in one deeply integrated and highly cost-efficient System-on-Chip. STM32Wx solutions enable real-time performance while ensuring efficient power consumption.

    Featuring different radio protocols, the STM32Wx portfolio includes 3 series:
  • The STM32WB, the STM32WB0 and the STM32WBA series for short-range connectivity
  • The STM32WL series for long-range connectivity

Product types

for Bluetooth®
Low Energy 5.4
The STM32WBA MCU series brings designers the performance, efficiency, and security enabled by Bluetooth® Low Energy 5.4 technology. It provides the essential features for wireless IoT devices, combined with enhanced security.
The STM32WB MCU series supports Bluetooth® Low Energy 5.4 and IEEE 802.15.4 communication protocols, Zigbee®, and Thread, running either individually or concurrently.
The multi-protocol capability enables Matter technology, which ensures seamless interactions between connected devices in smart homes across different IP technologies.
Low-power Bluetooth®
Low Energy 5.3
The STM32WB0 MCU series is compliant with Bluetooth Low Energy v5.3 and is fully optimized for ultra-low power consumption and excellent radio performance. It provides all features needed for simpler, energy efficient wireless IoT devices, enabling unparalleled battery lifetime.
The STM32WL MCU series is the world’s first LoRa®-enabled System-on-Chip.
The STM32WL is fully open and supports multiple modulations, making it the ideal choice for low-power wide area networks (LPWAN). Expanding IoT design possibilities, STM32WL MCUs reach the right balance between power consumption and performance.

Read more about the benefits of the 32-bit Arm® Cortex®-M processor for MCUs here.

Discover our portfolio


  • Faster time-to-market for wireless short- and long-range applications
    User-friendly, cost-effective design platform thanks to the wireless MCU processor.
    • STM32Wx MCUs are part of the STM32Cube ecosystem and compatible with the STM32 general-purpose portfolio:
    • Benefit from user-friendly hardware and software tools
    • Easy porting from other STM32 MCUs to wireless STM32 series
    • Leaves room for future product upgrades
    • Ensure high security levels:
    • Build trustable and unique devices
    • Secure user data and prevent platform cloning
  • By choosing ST, you can rely on our wireless expertise and a long-term partnership.
ULP Bluetooth LE 32-bit MCU!
Certified v5.3, +10dBm, high security level
STMicroelectronics accelerates development of innovative connected objects
with smart STM32 wireless module
Discover STM32WL latest news on the ST blog

Getting started with STM32WL

Purchase NUCLEO-WL55JC.

Download the free STM32CubeWL embedded software package containing the HAL, LL (low-layer) APIs, middleware, LoRaWAN®, Sigfox™, W-MBUS and mioty® certified stacks in stand-alone or concurrent mode. Then install ST’s STM32CubeMX graphical software configuration tool (free) that supports pinout configuration, code generation and a power consumption calculator. Start with one of the many examples provided or build your own project.

To fine tune your application, or perform radio test or build your own profile download and install STM32CubeMonitor tool.

Get trained watching our dedicated Online Training.

Discover the latest news about STM32WL on our ST blog!


More from STM32 Wireless MCUs portfolio
STM32 MCU solution for Matter: the promise of seamless device interoperability in smart homes