hfp 蓝牙免提协议 Handsfree Profiles v1.5-hfp Bluetooth handsfree protocol Handsfree Profiles v1.5

入门的ROS的资料，handsfree的内部资料，代码，还有解释，非常推荐，掌握这个，那么对ros将会有个很好的了解和熟悉-Particularly important ROS information, code, as well as interpretation, it is recommended to master this, then the ROS will have a good understanding and familiarity