Hack Turns a Kindle into an Expensive Thermometer

The Amazon Kindle was originally designed to let you read for weeks on end on a single battery charge, but as with most consumer electronics that idea went by the wayside once it got into customer's hands. We've seen Kindles hacked to act as second monitors, stream video, be a weather station, and even play video.

And now one enterprising hacker has come up with a way to use a $79 Kindle as a thermometer.

Hack Turns a Kindle into an Expensive Thermometer Amazon e-Reading Hardware Kindle

The hack requires nothing more than a jailbroken Kindle and some software you can find on GitHub. The software has to be installed on the Kindle, and it displays the temperature in Fahrenheit or Centigrade.

There's no need to add any sensors, and that's because this hack uses the temperature sensor which is built into the CPU. The Kindle runs on a Freescale CPU, and that sensor is intended to monitor the CPU so it can shut itself down if it overheats.

And since the CPU spends most of its time in standby, the temp sensor is going to return a value that is close to ambient air temperature in the room. Or at least that is how it is supposed to work; I'm not fully convinced that the CPU won't be running a couple degrees warmer.

If you would like to try the hack yourself, the code can be downloaded from GitHub.

Liliputing

Nate Hoffelder

View posts by Nate Hoffelder
Nate Hoffelder is the founder and editor of The Digital Reader: He's here to chew bubble gum and fix broken websites, and he is all out of bubble gum. He has been blogging about indie authors since 2010 while learning new tech skills at the drop of a hat. He fixes author sites, and shares what he learns on The Digital Reader's blog. In his spare time, he fosters dogs for A Forever Home, a local rescue group.

2 Comments

  1. […] Another Thing to Do With Your Old Kindle (The Digital Reader) Turn it into the world’s most expensive digital thermometer. […]

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  2. Sellout!9 June, 2014

    […] sure what to do with your old Kindle?  Well, you could re-purpose your old Kindle into a thermometer.  That’s exactly what one hack did. Apparently, it’s easy, and the software is readily […]

    Reply

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