The STMicroelectronics wireless extension-board is a cost-effective way to quickly develop WLAN and Bluetooth applications. It has STM32 multi-protocol, ultra-low power system-on-Chip (SoC) 2.4GHz MCU. This board proposes a variety of communication assets, a practical crystal-less USB2.0 FS interface, audio support, an LCD driver, up to 72 GPIOs, an integrated SMPS for power consumption optimization and multiple low-power modes to maximize battery life. With two independent cores, this innovative architecture is optimized for real-time execution (radio related software processing), resource usage efficiency and power management to provide a quality user experience. It provides the same digital and analogue peripherals suitable for applications requiring extended battery life and complex functionalities.

• 2.4GHz RF transceiver supporting Bluetooth specification v5.0
• Dedicated arm 32-bit Cortex M0+ CPU for real-time radio layer
• Flexible power-supply options: ST-LINK USB VBUS or external sources
• Integrated PCB antenna or UFL connector
• Lead-free
• on-board ST-LINK/V2-1 debugger/programmer with USB re- enumeration capability: mass storage, virtual COM port and debug port
• Supports a wide choice of Integrated Development Environments (IDEs), including IAR, Keil, GCC-based IDEs, Arm Mbed
• Three user buttons and one reset button

• Electronics laboratories
• Embedded systems
• IoT systems
• Telecommunication

• ANSI/ESD S20.20:2014
• BS EN 61340-5-1:2007
• IEEE 802.15.4-2011