The STM32BT-EXT extension board is designed as daughter board which can be connected to an STM3210B-EVAL or STM3210E-EVAL evaluation board, or an STM32 performance stick (developed by Hitex) through a USART serial interface to demonstrate wireless communication with another Bluetooth device. The board includes ST's Bluetooth module SPBT2563C2A which is compliant with Bluetooth® specification V2.1 and offers Bluetooth add-ons in a self-standing solution that integrates a unique FR4 PCB support, BT transceiver (STLC2500D), antenna, memory, 32.768 kHz and 13 MHz oscillators. Modules provide an embedded customer framework up to HCI level that allows interoperability with the HCI top resident on the host. Cheers, STOne-32.