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低功耗蓝牙CC2540 主机可以一次发送500字节的数据给从机吗?



低功耗蓝牙主机和从机通信,我发现只有从机向主机可以发送一连串数据,主机只可以向从机读写一个特征值?主机可以一次发很多数据给从机吗?类似串口那样通信,彼此都可以一次收发很多数据,而不是一个两个特征值