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Discovery Kit for BLE Audio with STM32WBA55CGU6

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Product overview


The STM32WBA55G-DK1 Discovery kit is a complete demonstration and development platform for the STM32WBA55CGU7 microcontroller, featuring an Arm® Cortex®‑M33 core with Arm® TrustZone® and mainline security extension, 1 Mbyte of flash memory, and 128 Kbytes of SRAM, as well as smart peripheral resources.

The STM32WBA55G-DK1 Discovery kit embeds a powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy SIG resources. This Discovery kit enables a wide diversity of applications by exploiting low-power communication, the Bluetooth® SIG isochronous channel feature related to audio capability for Bluetooth® Low Energy Audio, Matter as Border Router, and Zigbee®.

The support for ARDUINO® Uno V3 and STMod+ connectivity provides expansion capabilities with a large choice of specialized add-on boards.

The STM32WBA55G-DK1 Discovery kit integrates an STLINK-V3EC embedded in-circuit debugger and programmer for the STM32 microcontroller with a USB Virtual COM port bridge and comes with the STM32CubeWBA MCU Package, which provides an STM32 comprehensive software HAL library as well as various software examples.

The STM32WBA55G-DK1 Discovery kit leverages the STM32WBA series key assets to enable prototyping for a variety of wireless, low‑energy applications in fitness, metering, industrial, or medical, with state-of-the-art energy efficiency, and higher security.

  • All features

    • Ultra‑low‑power wireless STM32WBA55CGU7 microcontroller based on the Arm® Cortex®‑M33 core, featuring 1 Mbyte of flash memory and 128 Kbytes of SRAM in a QFN48 package
    • MCU RF board (MB1803):
      • 2.4 GHz RF transceiver supporting Bluetooth® specification v5.4
      • Bluetooth® Low Energy specification supporting LE Audio
      • Arm® Cortex®‑M33 CPU with Arm® TrustZone®, MPU, DSP, and FPU
      • Integrated PCB antenna
    • One digital microphone
    • OLED display
    • One user LED
    • User joystick with 4-direction control and selector button
    • Reset push-button
    • Board connectors:
      • USB Type-C®
      • One jack socket with stereo line input and one jack socket with stereo output and microphone input
      • Battery
      • Grove
      • MIPI10
      • Tag‑Connect™ 10‑pin footprint
      • ARDUINO® Uno V3 expansion connector
      • STMod+ expansion connector
    • Flexible power-supply options: ST-LINK USB VBUS or external sources
    • On-board STLINK-V3EC debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port
    • Comprehensive free software libraries and examples available with the STM32CubeWBA MCU Package
    • Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded Workbench®, MDK-ARM, and STM32CubeIDE

Quality and Reliability

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(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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