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Building a power meter application with an 8-bit MCU

5/15/2011 05:10 AM EDT
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Luis Sanchez
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re: Building a power meter application with an 8-bit MCU
Luis Sanchez   5/16/2011 8:05:14 PM
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This is a great article. I wasn't sure that we could make power measurement with a small device and no mechanical elements. Now I see it's possible... I'm called to build one myself. I'd like to know how much power is sucking each one of my devices in my house. Measuring the stand-by consumption and so on. Now that we are all concerned with the environment and green technologies, it's an important tool to have at home. Great article! Thanks!

Muhammad.Yaqoob
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re: Building a power meter application with an 8-bit MCU
Muhammad.Yaqoob   5/17/2011 6:49:58 AM
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This is very useful design article for power measurements.

Sheetal.Pandey
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re: Building a power meter application with an 8-bit MCU
Sheetal.Pandey   5/17/2011 8:14:28 AM
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Electronic meters have a number of advantages over their electro-mechanical predecessors. Namely, the mechanical construction is more cost-effective and is simpler due to the fact that there are no moving parts. Is there some error in the second line, instead of mechanical it should be electonics.

jcabetas
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re: Building a power meter application with an 8-bit MCU
jcabetas   5/17/2011 11:47:09 AM
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In Spain, because of a European Directive, all meters will have to meet requirements of Open Meter. That implies a communication layer and a more need of processing power

AB345
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re: Building a power meter application with an 8-bit MCU
AB345   5/17/2011 12:01:16 PM
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Where is Fig 1. ?

fdunn0
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re: Building a power meter application with an 8-bit MCU
fdunn0   5/17/2011 4:47:15 PM
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Figure 1. is on the second page.

Haldor
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re: Building a power meter application with an 8-bit MCU
Haldor   5/17/2011 8:34:31 PM
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Figure 2 is a mess (rendered with IE V7). Does anyone else see it correctly (not all jumbled up)?

Haldor
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re: Building a power meter application with an 8-bit MCU
Haldor   5/17/2011 8:37:32 PM
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Figure 1 doesn't make much sense. Drawing power from the mains neutral? And isolating the high side voltage and current measurement from mains power is also not a trivial task. Did the author actually build this power meter? How about a link to a schematic?

Jerry.Brittingham
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re: Building a power meter application with an 8-bit MCU
Jerry.Brittingham   5/18/2011 2:03:46 AM
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Where is the schematic?

Efried
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re: Building a power meter application with an 8-bit MCU
Efried   5/18/2011 8:13:26 AM
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I don't know why WLAN routers/switches don't have embedded web servers with S0 and 1wire interface. Would ease home automation so much.

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