Dan,
You could try building something using this sensor http://www.seeedstudio.com/depot/weight-sensor-load-cell-0500g-p-525.html?cPath=144_150 or, just use a postal scale, or kitchen scale. Integrating a pre-built scale into a 1x1 box would be a heck of a challenge though :)
Mitch
Pete/all,
Connect the sensor to a 1W a/d converter such as a DS2438 or DS2450 and connect that device to the 1W network. You'll need a burden resistor sized to the current of interest and likely some filtering/rectification depending on what you want to do with the measurement.
Mitch
P.S...
Some other things to think about:
- if you have a deck, wire RG6Q and CAT5/6 to it (I love my TV on the deck).
- CAT5/6 to wherever you are going to put alarm control keypads
- 120V wiring (get your electrician to do this) for Christmas lights outside, flood lights and a couple of spare...
2 things to consider; 1. try and remove 8 of the 100 ohm resistors and use 2 only in the legs returning to the master from the 5 port connectors. 2. change *all* the sensors to local power mode to speed up the cycle time. In parasitic mode, you need to send the ConvertT command to each sensor...
Both Eric and I have converted to selling the new HIH4021 sensors instead of the HIH4000's. The HIH4021's are sealed and better protected against condensing environments. Still too early to say how much longer they will last, but early results are promising. Been using a couple in a harsh...
Your voltages don't seem to match any valid direction state. See the document "Calculating Wind Speed and Direction on the OWWS" located here.
Is it possible that your wind direction monitor is defective?
Record high for me was 125F before I installed an attic fan a year ago. Since then, highest ever was 108F. Air conditioning bills have also plummeted.
Located in Atlanta.
Mitch
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