Listening to a Smart Scale

2014年2月22日 | By News | Filed in: News.

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scale

[Saulius] couldn’t find a cost-effective wireless scale that did what he wanted, so he reverse engineered the communication protocol for an off the shelf model to get weight data himself.

[Saulius] bought a cheap Maxim 29-66SH scale that uses infra-red to communicate to a detachable digital readout. Using the USB IR toy, [Saulius] intercepted the messages that were broadcast. After a little reverse engineering and with the help of some Python scripts, he soon discovered the protocol his scale was using to encode weight messages.

[Saulius] went on to write a little web app using JavaScript, SocketIO and … Read the rest


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