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Interfacing with The Energy Detective
I recently bought The Energy Detective (TED), a pretty inexpensive and friendly way to keep tabs on your whole house’s electricity usage. It’s a lot like having a more featureful version of your...
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Self-contained TED receiver
My previous entry introduced a homebrew receiver for the powerline-based data protocol used by The Energy Detective. I just designed a second revision of that receiver. This one is self-contained: It...
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The Kilowatt Clock
I thought I’d try putting together a YouTube video to show my latest crazy project. As usual, the schematic and firmware is in Subversion.
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Open source extra-sensitive high resolution TED receiver
Previously on the bloggy blog, I posted a few of my projects related to home data acquisition and to The Energy Detective (TED), a whole-house power measurement device. I made a set of homebrew...
View Articlescanlime:013 / Wacom Teardown and Schematic
This time we’re looking at the protocol that powers Wacom’s wireless pens, and taking a deep look into the logic circuits (74xx!) that make them run.If you missed the last video, check it out for the...
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