Features
• Ultra-low-power wireless STM32WL33CCV6 microcontroller based on the Arm® Cortex®‑M0+ core, with 256 Kbytes of flash memory and 32 Kbytes of SRAM in a VFQFPN48 package featuring:
– Ultra-low-power MCU
– Sub-GHz transceiver with IPD front end optimized for 413‑479 MHz or 826‑958 MHz frequency bands, supporting OOK, ASK, 2(G)FSK, 4(G)FSK, D‑BPSK, and DSSS modulations
– Compatible with proprietary and standardized wireless protocols such as WM-Bus, Sigfox™, mioty, KNX-RF, and IEEE 802.15.4g
– Low-power autonomous wake-up receiver
• Delivered with SMA antenna
• Three user LEDs
• Three user and one reset push-buttons
• Board connectors:
– USB Type-C®
– ARDUINO® Uno V3 expansion connector
– ST morpho extension pin headers for full access to all MCU I/Os
• 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 STM32CubeWL3 MCU Package
• Dedicated software tool to control and test radio transceiver
• Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded Workbench®, MDK-ARM, and STM32CubeIDE

Description
The STM32WL3x Nucleo-64 boards based on the MB1801 mezzanine board and MB2029 MCU RF board (NUCLEO-WL33CC1 and NUCLEO-WL33CC2 order codes) embed the STM32WL33CCV6 sub-GHz application processor. This high‑performance and low‑power application processor can operate in 433, 868, and 915 MHz bands.
The ARDUINO® Uno V3 connectivity support and the ST morpho headers provide an easy means of expanding the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields.
The STM32WL3x Nucleo-64 boards are supplied with a dedicated software package, HAL library, and various packaged software examples available with the STM32CubeWL3 MCU Package.
The boards are declined in two product variants with dedicated front ends tuned for specific frequency bands.