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03-27-2008, 04:38 PM
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#61
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Terminal flasher
Join Date: Sep 2004
Location: Woodbridge, VA
Posts: 6,312
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any chance we will see rain sensors for a rain-sensing wiper setup?
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03 Acura RSX Coupe
Developer of: RRFusion, MovieTimes.NET, (new)RRMail, RRShoutcast, & RRVehicle Maintenance
Currently working on: RRVehicle Maintenance
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03-27-2008, 04:47 PM
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#62
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Fusion Brain Creator
Join Date: Mar 2005
Posts: 2,197
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make your own.
put two bare wires real close to each other, one to input, one to +5vDC
when it rains, the input will increase
when it's not raining, the input will go to zero
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03-27-2008, 04:57 PM
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#63
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Terminal flasher
Join Date: Sep 2004
Location: Woodbridge, VA
Posts: 6,312
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Quote: Originally Posted by greenman100  make your own.
put two bare wires real close to each other, one to input, one to +5vDC
when it rains, the input will increase
when it's not raining, the input will go to zero
you know ur gonna burn my house down talking like its that simple right! lol
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03 Acura RSX Coupe
Developer of: RRFusion, MovieTimes.NET, (new)RRMail, RRShoutcast, & RRVehicle Maintenance
Currently working on: RRVehicle Maintenance
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03-27-2008, 05:08 PM
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#64
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Fusion Brain Creator
Join Date: Mar 2005
Posts: 2,197
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it really is that simple
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03-28-2008, 10:17 AM
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#65
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Variable Bitrate
Join Date: Mar 2004
Posts: 280
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does rainwater have enough ions in it to be conductive?
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03-28-2008, 10:30 AM
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#66
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Terminal flasher
Join Date: Sep 2004
Location: Woodbridge, VA
Posts: 6,312
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Quote: Originally Posted by greenman100 it really is that simple
ok so i run two small gauge wires up under my wiper cowl that are bare. Run one wire to the +5v and one to input leaving the switched ground disconnected. test the input voltage without rain and thats my floor. Then when it rains both the 5v line and the input line get wet, and this causes the input line's voltage to increase to a pre-defined point at which the output trigger hits a relay and turns the wipers on? Its that simple? The 5v line being hit with water wont cause an electrical short? if its that easy i'm amazed! lol
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03 Acura RSX Coupe
Developer of: RRFusion, MovieTimes.NET, (new)RRMail, RRShoutcast, & RRVehicle Maintenance
Currently working on: RRVehicle Maintenance
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03-28-2008, 12:30 PM
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#67
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Super Moderator. If my typing sucks it's probably because I'm driving....
Join Date: Oct 2004
Location: NY
Posts: 6,102
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that will kinda work maybe in a crude way, but oe rain sesors don't work by detecting the water in that way, they use a transmit & recieve eye in the windshield & it actually detects the distortion or prizm effect of rain drops on the windshield... in that way it can vary the wipers from a slow delayed stroke to a high fast speed in a heavy rain...
if you have wires that detect water I could see it not functioning anything like an oe rain sensor really...
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03-28-2008, 12:33 PM
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#68
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Fusion Brain Creator
Join Date: Mar 2005
Posts: 2,197
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I was half joking, but that's how moisture sensors in the ground work
turbocad's method is a bit more complicated but perhaps more reliable
also, no chance of short, for two reasons:
water isn't conductive enough to short 5 volts
the brain has built in overload protection
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04-18-2008, 06:52 PM
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#69
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Newbie
Join Date: Apr 2008
Location: Norfolk, VA
Posts: 8
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How about a simple voltmeter?
or a carbon monoxide detector for the interior?
Just some thoughts.
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04-18-2008, 11:42 PM
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#70
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Fusion Brain Creator
Join Date: Mar 2006
Location: Colorado, but Canadian!
Posts: 8,862
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Quote: Originally Posted by HisSketchiness How about a simple voltmeter?
or a carbon monoxide detector for the interior?
Just some thoughts.
The Fusion Brain is a voltmeter. 
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04-19-2008, 05:44 AM
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#71
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Constant Bitrate
Join Date: Oct 2004
Location: Lisbon, Portugal
Posts: 135
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how about an angle sensor that can detect possible body rollovers or that can be used offroad?
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Virando costas ao mundo
Orgulhosamente sós
Glória antiga, volta a nós!
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04-19-2008, 10:30 AM
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#72
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Constant Bitrate
Join Date: Aug 2003
Location: Iowa
Posts: 167
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Quote: Originally Posted by BrianMay how about an angle sensor that can detect possible body rollovers or that can be used offroad?
I'm looking into this as well as a way to determine how much a machine is leaning. I've seen some single axis clinometers (sp?) but they seem to be in the $150 range.
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04-19-2008, 10:59 AM
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#73
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Fusion Brain Creator
Join Date: Mar 2005
Posts: 2,197
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Quote: Originally Posted by BrianMay how about an angle sensor that can detect possible body rollovers or that can be used offroad?
you could use an accelerometer to detect hwo much G-force is in each axis
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04-19-2008, 11:04 AM
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#74
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Constant Bitrate
Join Date: Oct 2004
Location: Lisbon, Portugal
Posts: 135
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But I wanted to detect angles even with the car stopped
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Virando costas ao mundo
Orgulhosamente sós
Glória antiga, volta a nós!
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04-19-2008, 01:14 PM
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#75
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Fusion Brain Creator
Join Date: Mar 2005
Posts: 2,197
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yup, it would only work if the car was stopped...
hint: your body is experiencing a G-force of 1 g in the Y direction right now....
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