目前这个版本关于send命令能够发送的数据长度,其实在命令文档里面有简单的一个解释:
For broadcast type, user data length limitation is 56 bytes, excluding ‘r’ character at command tail.
For PAN unicast to end devices, user data length limitation is 51 bytes, excluding ‘r’ character at command tail.
For end device X sending data to end device Y under Star network, user data length limitation is 47 bytes, excluding ‘r’ at command tail.
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