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Wind Vane

R

RKovach

Jan 1, 1970
0
I found an article in an old "Electronics Now" mag that shows how to build a
wind vane. It uses a rotary encoder and a 74HC154 decoder to light the
correct LED for display. My problem is that they say the sensor will work up
to 30 feet away. I would need over twice that distance to use this in my
home. Does anyone know if it is possible to boost the signal for this, or
some other way to make an electronic display wind vane?
 
D

Dave Garnett

Jan 1, 1970
0
Units like the Davis windvane use a pot that can rotate 360 degrees. They
give an output voltage proportional to angle, with a fairly small dead
region (5 - 10 degrees). You could use a very long cable (three cores), and
at the far end something like a micro with A/D to drive leds, or something
like that.
Dave
 
J

John Fields

Jan 1, 1970
0
I found an article in an old "Electronics Now" mag that shows how to build a
wind vane. It uses a rotary encoder and a 74HC154 decoder to light the
correct LED for display. My problem is that they say the sensor will work up
to 30 feet away. I would need over twice that distance to use this in my
home. Does anyone know if it is possible to boost the signal for this, or
some other way to make an electronic display wind vane?

I'm assuming that the article calls for a 4 bit rotary encoder, in
which case the only issues are how to get power to the encoder, how
much power it uses, and how data gets from the encoder to the HC154.

Without further information it would be difficult to come up with
something concrete for you.

If you could scan the article (or just the schematic would be OK) and
post it somewhere that would be a huge help.
 
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