The Fusion Slim WB55 Lite development board is an advanced, ultra-compact board from the Fusion Slim series, tailored specifically for wireless connectivity, smart IoT, and mesh networking applications. Featuring a 25 × 65 mm footprint and a dual-core architecture, it shares the unified Fusion Slim wiring standard, allowing drop-in replacement with other Slim boards without changing your baseboard setup.
Key Features:
Typical Application:
- Internet of Things (IoT) & Smart Home (Matter / Zigbee / Thread)
- Wireless Sensor Networks & BLE 5.4 Solutions
- Wireless Industrial Control & Remote Systems
- Low-Power Wearable Electronics
Processor:
- STMicroelectronics STM32WB55RGV6 (Ultra-low-power Dual-Core: Arm Cortex-M4 @ 64MHz + Cortex-M0+ @ 32MHz)
Memory:
- 1 Mbyte Internal Flash + Secure SRAM
- Hardware Encryption Accelerator (AES-256)
Network & Wireless:
- Bluetooth LE 5.4, IEEE 802.15.4, Zigbee, Thread, Matter Support
- On-board Antenna
- FL Connector for External High-Gain Antenna
Power:
- USB Type-C
- Li-ion/Li-Po Battery Management (Charge and Boost)
- Separated Output & Board Power Supply for Enhanced Protection
Sensor:
- 3 Axis Accelerometer + Temperature
Protection:
- ESD Protection
- Short Circuit Protection
- Overcurrent Protection
Expansion Connectors:
- FlexI2C Connector and Interface
- High-Density Expansion Connectors
- Fully Compatible with moduX Series Modules
- Fully Compatible with Fusion Slim Series Modules
Other:
- Compact Dimensions: 25 × 65 mm
- Dedicated Reset and Program (Boot) Buttons
- Battery Charging Status LED
- User Programmable RGB LED
- Inter-operable Pinout with All Fusion Slim Series Boards
IDE and Software:
- Arduino IDE
- STM32CubeIDE
- STM32CubeWB / Certified RF Stacks
Key Benefits:
- Dual-Core Wireless Architecture: Offloads radio protocols to the Cortex-M0+ core while reserving the Cortex-M4 for main user applications.
- Broad Protocol Support: Native support for BLE 5.4, Zigbee, Thread, and the Matter ecosystem out of the box.
- Flexible Antenna Options: Use the onboard antenna for ultra-compact builds or plug into the U.FL connector for extended range.
- Modular & Interchangeable Design: Standardized Fusion Slim wiring enables instant hardware upgrades across different MCU architectures.
- Ultra-Low Power Design: Integrated Li-ion charger and power separation optimize battery life for remote sensor nodes.
- High Density Connectivity: High-Density headers along with moduX and FlexI2C ecosystems provide maximum scalability.
- Popular Programming Platform Support: Arduino IDE and STM32CubeIDE are popular, user-friendly programming platforms that offer flexibility to developers of all skill levels.