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  1. M

    Calculating Real Power Use by Accounting for Phase Shift - Energy Monitoring

    Hey all, I'm considering building an energy monitor using CTs for sensing the current and outputting a voltage ds2438's for reading the said voltage. The problem is that power=voltage*amperage only works with resistive loads, not motors, fridges, etc.. (Awesome explanation here) I would...
  2. M

    DS18S20 has errors in xAP Viewer

    Hey everyone. I'm building my first one-wire network with two sensors (one DS18S20 temperature sensor and one DS2406 to be used as a relay). my setup: I'm using HomeSeer 2 I use xAP hub, xapmcs1wire and mcsxap to communicate between the sensors and homeseer. I use xfx viewer to monitor...
  3. M

    Do I really need a transistor to drive my solid state relay?

    Hi everyone, I want to use a DS2413 (max voltage on PIO is 28V, max current on PIO is 20 mA) to drive a relay with the following controls specs: Control Voltage:3-32VDC Control Current:DC 6-25mA Seeing this, it would seem that anywhere between 6 mA and 20 mA would be...
  4. M

    newbie - is this sketch OK ?

    Hey everyone, This is my first foray in the 1-wire device world. I'd like to do the following simple thing to get started: Use an unslung NSLU2 with a DS9490R usb to 1-wire adapter. (software will be figured out later) Figure out what the indoor temperature is, using a DS18S20 temperature...
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