Dave plays around with an energy harvesting kit to see how much power he can get out of a Peltier device used as a Seeback effect module to generate power from temperature differentials.
Bonus white board tutorial of how Peltier devices work as heat pumps.

Wuerth Elektronik Energy Harvesting Kit: http://www.we-online.com/web/en/electronic_components/produkte_pb/demoboards/energy_harvesting/energy_harvesting.php
Linear Technology: http://www.linear.com/solutions/1834
DC2080A Demo Manual: http://cds.linear.com/docs/en/demo-board-manual/DC2080AF.PDF
LTC3108 Energy harvesting chip datasheet: http://cds.linear.com/docs/en/datasheet/3108fc.pdf

Measuring microcontroller sleep current using integration on an oscilloscope:
https://www.youtube.com/watch?v=Dh0xYu8YvaE
Forum: http://www.eevblog.com/forum/blog/eevblog-664-peltier-teg-energy-harvesting-experiments/

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