Sensore di corrente e misurazione consumi elettrici

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ciao...

sono alle solite, bloccato per un cavillo e non ne salto fuori..

qualcuno di voi ha mai usato un trasformatore non invasivo per misurare consumi di casa/apparecchiature??
be, io ho preso questo:
http://www.sparkfun.com/products/11005
ho provato questa guida
http://openenergymonitor.org/emon/buildingblocks/ct-sensors-interface
calcolato la resistenza "burder" ma alla fine non riesco tararlo ovvero, con un carico da 50w riesco ad avere un valore che se il carico lo porto 70w non è proporzionale.

qualcuno lo ha già messo in opera?? un paio di consigli grazie..

ma l'hai provato il loro applicativo?
http://openenergymonitor.org/emon/node/58


Arduino Forum > International > Italiano > Generale (Moderator: leo72) > Sensore di corrente e misurazione consumi elettrici


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