freelancers?
I just stumbled across this forum and company products.· I am a computer web developer by trade and an automotive enthusiast. When I started reading about the different chips and such I thought this would bee a good place to maybe fine someone who could help build a simple circuit for me.· You see I am restoring a car that originally had a mechanism that when the door handle was pressed it would drop the window down about 1/4 inch and when the door closed it would roll it back up.· If the window was already down it would of course not do anything.· I was wondering if anyone would be interested in helping develop this simple circuit as a freelance project to help me.
Thanks
Jason
Dayton, Ohio USA
Thanks
Jason
Dayton, Ohio USA
Comments
Of course, knowing Ford, the module that controls the window probably also controls the air bag, power steering, trunk release, fuel injection, turn signals, radio, and air conditioning. That way, when one fails you loose all of those things and have to pay $9999.99 for a new super-does-everything module.
But I digress.
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Roger Pierson
Senior Electronics Technicain
DTI Assoicates
Jason
http://www.newark.com/NewarkWebCommerce/newark/en_US/endecaSearch/partDetail.jsp;?SKU=72J6987&N=0
The output of the photodiode is essentially zero when no light is reflected back to it's reciever. If you put a piece of black tape at the lower edge of the window so that it is still hidden behind the door when the window is up, you could postion the emitter to point at the tape. When the door handle switch closed the circuit no current would be output from the photodiode if the window was up. If the window was already down, you get some kind of output.
In this configuration, you'd need a normally closed relay to activate the window motor. This way, when there was no current ouptut (window is up), the relay would remain closed driving the window down until the black tape moved below the photodiode. (Only when the door handle switch completed the circuit) When the window lowered enough unblock the emitter, you would get an output from the photodiode which would hold the relay open, shutting down the motor.
That all depends on there being room to mount the hardware in the proper location. It would also require a fair amount of tinkering to get things just right.
Even simpler, with a bit of research you could probably find a micro-limit switch to accomplish the same function as the photodiode.
Anyway, just thinking out loud. It's a neat little project to think about [noparse]:)[/noparse].
If you still want to use a Stamp, the code would be simple enough I bet you could just do it yourself. I would use a photo resistor and an LED instead of the photodiode and use the output of the photo resistor to tell the Stamp when to trigger the relay. The advantage in that approach is you could use a normally open relay, and only the photo reistor and the led would need to be near the window, the bulky part of the hardware could be anywhere.
- Roger
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Roger Pierson
Senior Electronics Technicain
DTI Assoicates
Bean.
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Cheap used 4-digit LED display with driver IC·www.hc4led.com
Low power SD Data Logger www.sddatalogger.com
SX-Video Display Modules www.sxvm.com
"People who are willing to trade their freedom for·security deserve neither and will lose both." Benjamin Franklin
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Thanks
Jason