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Power meter / S0 pulse generator
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Power meter / S0 pulse generator

by Sparkz on Wed Jan 13, 2010 9:54 am

Hi.

I just started fiddling with electronics as a hobby again, and for one of my first projects I want to do remote readings of my electrical usage. On my power meter I have what I've been told is an S0-terminal/connector which is supposed to give X pulses per kW/h, which should be perfect for my project (plan B is to use a photoresistor in front of the blinking LED).
However, I have been unable to figure out the specs for this S0-terminal, and was wondering if anyone here could shed some light on what, if anything, I need to hook this signal up to my Arduino without frying anything.
Sparkz
 
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Re: Power meter / S0 pulse generator

by zener on Wed Jan 13, 2010 2:49 pm

I never heard of that. What does the connector look like? Who is the mfg of the meter head?

zener
 
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Re: Power meter / S0 pulse generator

by erlendse on Wed Nov 24, 2010 12:00 pm

The S0 interface is just a switch that turns on for some short duration each 0,x kW,
You can use 12-24V maybe even 5V and just treat it as a switch in a electronic circuit.

Internally the S0 output is a optocoupler connected to the LED, so using a photocell on the LED is just a duplication of the internal circuit.
erlendse
 
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