HP INCFollow


A technique is disclosed that communicates to a user detailed diagnostic

information about a failure in an electronic device in a detailed and convenient manner

using simple hardware. A light-emitting or sound-emitting component of the device

encodes characters of a textual description of the failure. A smartphone app captures and

decodes the description, and presents a corresponding textual message about the failure

on the smartphone display.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 License.