Tag: TED
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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 wireless temperature sensors that display graphs on a digital picture frame, I reverse engineered the TED protocol, built a small self-contained…
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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 (navi-misc/tedrx/hardware/kwclock-v1-schematic.png) and firmware (navi-misc/tedrx/firmware/kwclock/main.c) is in Subversion.
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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 gets power and modulated data from a 9V AC wall-wart transformer, and decoded data leaves via an RS-232 serial port at 9600 baud. Best…
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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 utility company’s power meter, sitting on your kitchen counter. It can estimate your utility bill, and tell you how much electricity and…
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Measuring energy usage
Lately I’ve been interested in measuring whole-house power consumption. I’d like to know where my electric bill is going, how often I forget to turn the lights off, how much the CFL bulbs are actually helping, etc. Besides, I really like measuring things in real-time and displaying them in interesting ways 😉 So, I’ve been…