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Anyone make a current/voltage watt-hour meter with RS-232 output?

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Posted by Sum Guy on April 6, 2010, 2:30 pm
 


I want to impliment a PC-based data logger for my home energy usage by
measuring my total current, voltage, and power readings at my main
breaker.

I know there are products that do this and have various read-outs and
data logging capability.

I don't want a readout, and I don't want data logging capabilities.

Do any modules or devices exist where I can attach a couple of coils to
measure current on my 2 hot leads and three wire connections to measure
my 2-phase 220 VAC service, and generates numeric data I can read via
serial interface by a PC with a time resolution of my choosing?

Posted by somebody on April 6, 2010, 5:50 pm
 




Radio Shack used to make a multimeter with RS-232 output.

Posted by Bill on April 6, 2010, 6:02 pm
 


"Sum Guy" wrote in message

Ask here...
http://forums.parallax.com/forums/



Posted by Steve Ackman on April 7, 2010, 8:49 am
 

Guy, Sum@guy.com wrote:


  A data logger without data logging capabilities
would be...  broken?

--
☯☯


Posted by Sum Guy on April 7, 2010, 12:58 pm
 

Steve Ackman wrote:


I do not need or want to pay for data-logging capabilities for the
device that's connected to my main power lines that is measuring the
instantaneous voltage, current, and power usage.  I want the PC to
perform the data-logging.

I would have thought that much was clear.

I did say "pc-based data logger".  

You went too far out of your way to edit my question to make it look
like a joke or a paradox.

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