Recent content by 1liner

  1. 1

    Moisture Meter Background

    I too have noticed this quirk. I am using the leaf moisture sensor. When it's overcast and cool the sensor readings are lower than than when it is sunny and hot regardless of the wetness of the sensor. So if I want to turn on my irrigation system I have to adjust the cut in level. For...
  2. 1

    Monitoring voltages

    I'm using vis * 11.5 + 0.6 which I calibrated manually with digital meter. Seems to be accurate to 1/10 VDC.
  3. 1

    Screw Terminals vs RJ45 Jacks

    Eric I use both depending on appllication, especially I like using the rj45 12volt line to transfer power to all the devices.
  4. 1

    got hit by lightning :(

    Sorry to hear about your past loss. Hope everything has been replaced. This is a subject of serious interest to me. We get lightning strikes every year here where I live and have also lost electronics. There are some things I would like to bring up for discussion if any one has expertise or...
  5. 1

    HVAC voltage conversion

    Thanks, I'll take idea 1. I already have a battery charger, they tend to burn out after awhile (the new ones even have a power sucking fan for cooling). It only needs to be on occasionally when the solar panels don't charge the battery enough. I had other applications in mind but will search...
  6. 1

    HVAC voltage conversion

    Can someone help me convert my DS2450 voltage reading to a 12VDC equivalent. I want to monitor a 12V battery in order to turn on a battery charger when the voltage drops below 12.4VDC I have used 2 equations Vb = (Vs * 10) +1 and Vb = (Vs * 11) _0.715 (Vb = battery volts, Vs = DS2450 volt.A...
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