3. The electronic device of claim 1 , wherein the input delimiter includes an invalid character for a Service Set Identifier.
1. An electronic device, comprising: an antenna; and an interface circuit, coupled to the antenna, configured to communicate with another electronic device using a Bluetooth Low Energy (BTLE) communication protocol, wherein the electronic device is configured to: receive input messages using a predefined characteristic having a numerical identifier to convey input information associated with a set of input attribute types including multiple input attribute types, wherein a given input message includes one or more input-command characters specifying a given input attribute type in the set of input attribute types, an input value in an input argument associated with the given input attribute type, and an input delimiter between the one or more input-command characters and the input argument, and wherein the one or more input-command characters, the input delimiter and the input value dynamically repurpose the predefined characteristic to convey any of the set of input attribute types, including an input attribute that is not known in advance; and provide output messages using the predefined characteristic to convey output information associated with a set of output attribute types having multiple output attribute types, wherein a given output message includes one or more output-command characters specifying a given output attribute type in the set of output attribute types, an output value in an output argument associated with the given output attribute type, and an output delimiter between the one or more output-command characters and the output argument, and wherein the one or more output-command characters, the output delimiter and the output value dynamically repurpose the predefined characteristic to convey any of the set of output attribute types.