STM32WBA2: the most affordable STM32 wireless MCU
Reliable, low-power wireless MCU for cost-sensitive IoT devices
Reliable, low-power wireless MCU for cost-sensitive IoT devices
The STM32WBA2 brings wireless connectivity with Bluetooth LE and IEEE 802.15.4 into a compact, low‑power MCU architecture designed for cost‑and-energy sensitive applications.
Create efficient IoT devices with longer battery life, 2‑layer PCB designs, and streamlined development with STM32 tools, RF expertise, and certified security.
Key benefits
High wireless performance
Multiprotocol radio delivering stable connectivity, +10 dBm output power, and efficient operation with 1 dB TX steps.
Cost-effectiveness
High integration in compact packages enabling 2‑layer PCBs, lower BOM, simpler circuitry, and an optimal price point.
Enhanced security
Robust security architecture and certifications, designed to meet RED/CRA, US CyberAct, and upcoming regulatory requirements.
Key features
- Arm® Cortex®-M33 core running at 64 MHz
- 512 Kbytes of flash and 96 Kbytes of RAM
- Bluetooth® LE 6.2 core, Zigbee 3.0, OpenThread 1.4
- USB-FS and QSPI interfaces
- +10 dBm output power
- Programmable Tx power in 1 dB steps
- Up to 27 GPIOs
- PSA SoC, PSA Level 1, and SESIP3 target certifications
Suitable for many applications
Industrial
Medical
Smart home control
Get started
STM32 Nucleo board
Start prototyping faster
Speed up wireless development with the STM32 Nucleo-64 board featuring Arduino/Morpho headers, 27 GPIOs, and an RF-certified QFP48 design.
STM32 Expansion board
Expand your wireless capabilities
Accelerate testing with the Nucleo expansion board supporting Arduino UNO R3, oscillators, and an RF-certified layout for Bluetooth LE and IEEE 802.15.4 evaluation
Free embedded software
Develop with STM32Cube
Ensure your application’s performance with the robust debugging capabilities of STM32CubeWBA.
STM32 Explore | Live webinar
Build compact, low‑power, and secure wireless devices with the STM32WBA2 MCUs