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user: teuobk
created: 2008-07-14
karma: 1897

Hi!

Embedded development, among other things.

Blog: https://www.keacher.com/

Email: jeff.keacheratgmaildotcom

submissions:

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Homemade Copper Oxide Thermoelectric Generator Can Light an LED (2011)
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A History of Early Microcontrollers, Part 1: Calculator Chips Came First (2022)
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Energy-Harvesting Electronic Holiday Card 2024
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The Secret Feature in Every LED [video]
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