蓝牙模块BLK-MD-BC04-B开发资料，AT命令，串口通讯-STM32 development tutorials, supporting the wildfire development board, STM32 learning materials

This BC04 Bluetooth module based on British CSR Blue Core4-Ext chip,follow v2.1 +EDR Bluetooth specification. The module supports UART,USB,SPI ,PCM SPDIF interface and support for the SPI Bluetooth serial protocol, low cost, small size, low power con

BLK-MD-BC04-B蓝牙模块AT指令集-BLK-MD-BC04-B BlueTooth module AT command Set