New ARM-powered chip aims for battery life measured in decades
<p><pre><code>  The chip is so low power that it can be powered off energy
  capture from the body, as Andreas Eieland, Atmel's Director
  of Product Marketing for low-power products, demonstrated at
  CES earlier this year.
</code></pre>
The human body generates more bio-electricity than a 120v battery, and over 25,000 BTUs of body heat. Combined with the Atmel SAM L21 32-bit ARM MCU, the machines had found... all the energy they would ever need.