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.

STM32WBA55G-DK1 image
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 UFQFPN48 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:
ARDUINO® Uno V3 expansion connector
STMod+ expansion connector
Grove
USB Type-C®
Battery
Two 3.5 mm stereo jack sockets for input and output with microphone
MIPI10
Tag‑Connect™ 10‑pin footprint
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